US20050152624A1 - Pouch having expanded polymer edges - Google Patents
Pouch having expanded polymer edges Download PDFInfo
- Publication number
- US20050152624A1 US20050152624A1 US10/758,145 US75814504A US2005152624A1 US 20050152624 A1 US20050152624 A1 US 20050152624A1 US 75814504 A US75814504 A US 75814504A US 2005152624 A1 US2005152624 A1 US 2005152624A1
- Authority
- US
- United States
- Prior art keywords
- pouch
- expandable polymer
- polymer
- edge
- panel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
- B65D75/008—Standing pouches, i.e. "Standbeutel"
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
- B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
- B29C44/1271—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements the preformed parts being partially covered
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/03—After-treatments in the joint area
- B29C66/034—Thermal after-treatments
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
- B29C66/112—Single lapped joints
- B29C66/1122—Single lap to lap joints, i.e. overlap joints
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/301—Three-dimensional joints, i.e. the joined area being substantially non-flat
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/32—Measures for keeping the burr form under control; Avoiding burr formation; Shaping the burr
- B29C66/328—Leaving the burrs unchanged for providing particular properties to the joint, e.g. as decorative effect
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
- B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
- B29C66/43—Joining a relatively small portion of the surface of said articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
- B29C66/723—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
- B29C66/727—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being porous, e.g. foam
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
- B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
- B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
- B29C66/81427—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single ridge, e.g. for making a weakening line; comprising a single tooth
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B70/00—Making flexible containers, e.g. envelopes or bags
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D33/00—Details of, or accessories for, sacks or bags
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
- B29C35/0805—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation
- B29C2035/0855—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation using microwave
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
- B29C35/0866—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using particle radiation
- B29C2035/0877—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using particle radiation using electron radiation, e.g. beta-rays
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2795/00—Printing on articles made from plastics or substances in a plastic state
- B29C2795/002—Printing on articles made from plastics or substances in a plastic state before shaping
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
- B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
- B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
- B29C66/81411—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
- B29C66/81415—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being bevelled
- B29C66/81417—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being bevelled being V-shaped
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
- B29C66/832—Reciprocating joining or pressing tools
- B29C66/8322—Joining or pressing tools reciprocating along one axis
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2067/00—Use of polyesters or derivatives thereof, as moulding material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous
- B29K2105/048—Expandable particles, beads or granules
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2009/00—Layered products
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/712—Containers; Packaging elements or accessories, Packages
- B29L2031/7128—Bags, sacks, sachets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B2155/00—Flexible containers made from webs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B2155/00—Flexible containers made from webs
- B31B2155/002—Flexible containers made from webs by joining superimposed webs, e.g. with separate bottom webs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B2160/00—Shape of flexible containers
- B31B2160/10—Shape of flexible containers rectangular and flat, i.e. without structural provision for thickness of contents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B70/00—Making flexible containers, e.g. envelopes or bags
- B31B70/008—Stiffening or reinforcing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B70/00—Making flexible containers, e.g. envelopes or bags
- B31B70/60—Uniting opposed surfaces or edges; Taping
- B31B70/64—Uniting opposed surfaces or edges; Taping by applying heat or pressure
Definitions
- the present invention relates generally to flexible packaging in the form of pouches and methods of making pouches. Specifically the invention relates to flexible pouches with an improved edge configuration.
- Flexible pouch type packaging is typically created by heat sealing two adjacent plys of thermoplastic material along an outer perimeter edge.
- edges may particularly be sharp when the pouch construction includes heavy-gauge oriented polymers and/or foil. Sharp edges may make the pouches difficult to handle for the manufacturer as well as the consumer. In some situations, the manufacturer is required to package the pouches within secondary packaging to prevent the edges from cutting or scaring other packages during shipment. The application of this secondary packaging is time consuming and adds cost, as well as may reduce the number of pouches that can be shipped in a given package.
- U.S. Pat. No. 4,448,320 to Kapolas discloses a closure for a rigid container (e.g., a jar) that utilizes a liner formed of plastisol that expands when cured. The plastisol bead is indicated to aid in retaining the closure of the container.
- U.S. Pat. No. 5,873,641 to Spinelli discloses puff ink on a flat, non-woven textile mat. The puff ink provides graphics and a non-skid surface.
- U.S. Pat. No. 5,133,088 to Dunlap discloses a sock having puff ink applied thereon, that provides a non-skid surface.
- the present invention relates in general to a flexible pouch of the type having two adjacent panels, with each panel comprises a single layer or a plurality of layers laminated together.
- An expandable polymer is positioned between two of the layers, adjacent the edges.
- the expandable polymer is a specifically triggered, such as by heat, radio frequency or the like, meaning that the polymer does not expand on its own.
- the expandable polymer is a heat-activated puff ink.
- One potential form of trigger is the activation of microspheres in the polymer, which cause the polymer to expand.
- the expandable polymer may be applied to the pouch layers as part of the printing process for the layers.
- the pouch may be formed in any number of configurations.
- One possible form includes two adjacent panels and a bottom gusset, wherein the two panels and the bottom gusset may comprise a plurality of laminate layers.
- the expandable polymer may be positioned between two of the plurality of layers adjacent the edges in both side panels, in one of the side panels and the bottom gusset, or in both side panels and the bottom gusset.
- the two side panels, or the one side panel and the bottom gusset are heat sealed together along at least one edge.
- the heat sealing activates the expandable polymer, causing the polymer to expand outwardly along the edge of the panels and/or gusset.
- the outwardly expansion of the polymer forms a bead of tactile friendly material.
- the expandable polymer may be a material that does not expand during the heat sealing operation.
- the polymer material extrudes outwardly after the heat sealing by using a specific trigger other than heat, such as by the application, electron beams or microwaves.
- FIG. 1 is a top perspective view of a pouch with a bead formed along the edges by an expanded polymer material.
- FIG. 2 is a partial cross section of the two adjacent multi-layered laminate panels with expandable polymer positioned between two of the layers.
- FIG. 3A is a top plan view of two pouch panels after being heat sealed and prior to the expansion of the polymer.
- FIG. 3B is a top plan view of the pouch in FIG. 3A after the polymer has expanded, creating a bead along the edges.
- FIG. 4A is an elevation view of a heat sealed pouch prior to the expansion of the polymer.
- FIG. 4B is an elevation view of the pouch showing the expanded polymer having created a bead along the edges of the pouch.
- FIG. 1 a pouch in accordance with the present invention, which is generally identified by the numeral 10 .
- the pouch 10 is formed by the joining a front panel 12 and back panel 14 along two edge seams 16 and along one bottom edge seam 18 .
- an expandable polymer 20 has formed a bead 22 along the joined edges 16 , 18 of the pouch. This bead of expanded polymer 22 covers the outer edges of the pouch and provides a relatively soft edge.
- the polymer 20 in its unexpanded state is positioned along the edges of the pouch panels 12 , 14 , between two laminate layers 24 , 26 .
- the polymer 20 comprises plastisol based, heat-activated puff ink, which is printed in register with the graphics on one of the panels during normal printing process (e.g. by a flexographic or gravure process).
- Each panel may be formed of a single layer or may be made from any number of laminate layers 28 .
- the laminate layers 24 , 26 , 28 may comprise heavy gauge polymers, such as polyethylene terathale or foils.
- the polymer 20 during its expansion is extruded outwardly from between the layers, when the edges of the pouch are heat sealed by sealing jaws 30 .
- the sealing jaws 30 are preferably chamfered along the outer edge of the pouch so as to assist in the extrusion of the polymer 20 in an outward direction during the expansion.
- FIG. 3A shows a pouch with heat sealed side edges 16 and the polymer 20 remaining in the unexpanded state between two of the laminate layers 24 , 26 , both on the front 12 and back 14 panels.
- FIG. 3B shows a pouch with an expanded polymer bead 22 positioned along the heat sealed edges 32 of the pouch.
- the expansion of polymer 20 in this embodiment is not triggered by the heat sealing process; rather, the expansion is triggered by an alternate means, such as by electron beam, microwave, etc.
- FIG. 4A shows the pouch in cross section, wherein the front panel 12 is the heat sealed 34 around three side edges.
- the polymer 20 remains in the laminate layers after the heat sealing, since expansion is triggered by something other than heat.
- FIG. 5 shows an alternate pouch form 36 having a front panel 12 , a back panel 14 and a bottom gusset 38 .
- the front panel 12 and back panel 14 are joined along two edge seams 16 .
- the bottom gusset is joined to the front panel and the back panel along edge seams 40 , 42 .
- a bead of expandable polymer 22 is formed along the heat sealed edges of the pouch 16 , 40 , 42 .
- the expanded polymer as contemplated by the present invention may define tactile friendly surfaces.
- the preferred construction of a puff ink as the expandable polymer creates this quality.
- other features of the invention will be understood by those in the art upon review of the present specification.
Abstract
A heat sealed pouch with tactile friendly edges is provided from the expansion of an expandable polymer, triggered either during the heat sealing process or subsequent to the heat sealing process. The pouch consists of two adjacent panels which are sealed along at least one edge.
Description
- The present invention relates generally to flexible packaging in the form of pouches and methods of making pouches. Specifically the invention relates to flexible pouches with an improved edge configuration.
- Flexible pouch type packaging is typically created by heat sealing two adjacent plys of thermoplastic material along an outer perimeter edge.
- Using current heat sealing technology, flexible pouches are sometimes formed having relatively sharp edges. The edges may particularly be sharp when the pouch construction includes heavy-gauge oriented polymers and/or foil. Sharp edges may make the pouches difficult to handle for the manufacturer as well as the consumer. In some situations, the manufacturer is required to package the pouches within secondary packaging to prevent the edges from cutting or scaring other packages during shipment. The application of this secondary packaging is time consuming and adds cost, as well as may reduce the number of pouches that can be shipped in a given package.
- There are a number of known methods of heat sealing pouch seams. U.S. Pat. No. 3,256,527 to Struden discloses a manner of heat sealing of a seam by passing the material between heated jaws having a planar surface for contacting the layers. The resulting seam is a flat, fin-type seam of two layers. U.S. Pat. No. 4,868,025 to Strzelewicz discloses a manner of heat sealing a seam by passing the material between jaws specially designed to produce a zone of fused materials, forming a seamed edge on the bag.
- It is also known to use heat activated puff ink in a variety of contexts. U.S. Pat. No. 4,448,320 to Kapolas discloses a closure for a rigid container (e.g., a jar) that utilizes a liner formed of plastisol that expands when cured. The plastisol bead is indicated to aid in retaining the closure of the container. U.S. Pat. No. 5,873,641 to Spinelli discloses puff ink on a flat, non-woven textile mat. The puff ink provides graphics and a non-skid surface. U.S. Pat. No. 5,133,088 to Dunlap discloses a sock having puff ink applied thereon, that provides a non-skid surface.
- The present invention relates in general to a flexible pouch of the type having two adjacent panels, with each panel comprises a single layer or a plurality of layers laminated together. An expandable polymer is positioned between two of the layers, adjacent the edges.
- The expandable polymer, as contemplated by the present invention, is a specifically triggered, such as by heat, radio frequency or the like, meaning that the polymer does not expand on its own. Preferably, the expandable polymer is a heat-activated puff ink. One potential form of trigger is the activation of microspheres in the polymer, which cause the polymer to expand. The expandable polymer may be applied to the pouch layers as part of the printing process for the layers.
- The pouch may be formed in any number of configurations. One possible form includes two adjacent panels and a bottom gusset, wherein the two panels and the bottom gusset may comprise a plurality of laminate layers. In this pouch embodiment, the expandable polymer may be positioned between two of the plurality of layers adjacent the edges in both side panels, in one of the side panels and the bottom gusset, or in both side panels and the bottom gusset. The two side panels, or the one side panel and the bottom gusset, are heat sealed together along at least one edge. In the preferred embodiment, the heat sealing activates the expandable polymer, causing the polymer to expand outwardly along the edge of the panels and/or gusset. The outwardly expansion of the polymer forms a bead of tactile friendly material.
- It is contemplated that the expandable polymer may be a material that does not expand during the heat sealing operation. The polymer material extrudes outwardly after the heat sealing by using a specific trigger other than heat, such as by the application, electron beams or microwaves.
- For the purpose of the illustrating the invention there is shown in the drawings various forms which are presently preferred; it being understood, however, that this invention is not limited to the precise arrangements and instrumentalities particularly shown.
-
FIG. 1 is a top perspective view of a pouch with a bead formed along the edges by an expanded polymer material. -
FIG. 2 is a partial cross section of the two adjacent multi-layered laminate panels with expandable polymer positioned between two of the layers. -
FIG. 3A is a top plan view of two pouch panels after being heat sealed and prior to the expansion of the polymer. -
FIG. 3B is a top plan view of the pouch inFIG. 3A after the polymer has expanded, creating a bead along the edges. -
FIG. 4A is an elevation view of a heat sealed pouch prior to the expansion of the polymer. -
FIG. 4B is an elevation view of the pouch showing the expanded polymer having created a bead along the edges of the pouch. - With reference to the drawings, where like numerals identify like elements, there is shown in
FIG. 1 a pouch in accordance with the present invention, which is generally identified by thenumeral 10. Thepouch 10 is formed by the joining afront panel 12 andback panel 14 along twoedge seams 16 and along onebottom edge seam 18. As illustrated, anexpandable polymer 20 has formed abead 22 along thejoined edges polymer 22 covers the outer edges of the pouch and provides a relatively soft edge. - As shown in
FIG. 2 , thepolymer 20 in its unexpanded state is positioned along the edges of thepouch panels laminate layers polymer 20 comprises plastisol based, heat-activated puff ink, which is printed in register with the graphics on one of the panels during normal printing process (e.g. by a flexographic or gravure process). Each panel may be formed of a single layer or may be made from any number of laminate layers 28. As shown inFIG. 2 , thelaminate layers polymer 20 during its expansion is extruded outwardly from between the layers, when the edges of the pouch are heat sealed by sealingjaws 30. The sealingjaws 30 are preferably chamfered along the outer edge of the pouch so as to assist in the extrusion of thepolymer 20 in an outward direction during the expansion. -
FIG. 3A shows a pouch with heat sealed side edges 16 and thepolymer 20 remaining in the unexpanded state between two of the laminate layers 24, 26, both on the front 12 and back 14 panels.FIG. 3B shows a pouch with an expandedpolymer bead 22 positioned along the heat sealed edges 32 of the pouch. The expansion ofpolymer 20 in this embodiment is not triggered by the heat sealing process; rather, the expansion is triggered by an alternate means, such as by electron beam, microwave, etc. -
FIG. 4A shows the pouch in cross section, wherein thefront panel 12 is the heat sealed 34 around three side edges. In this figure, thepolymer 20 remains in the laminate layers after the heat sealing, since expansion is triggered by something other than heat. A cross section of the pouch with the polymer in the expanded condition, triggered by heat, electron beam, microwave, or the like, is shown inFIG. 4B . -
FIG. 5 shows analternate pouch form 36 having afront panel 12, aback panel 14 and abottom gusset 38. Thefront panel 12 and backpanel 14 are joined along two edge seams 16. The bottom gusset is joined to the front panel and the back panel along edge seams 40, 42. A bead ofexpandable polymer 22 is formed along the heat sealed edges of thepouch - The expanded polymer as contemplated by the present invention may define tactile friendly surfaces. The preferred construction of a puff ink as the expandable polymer creates this quality. However, other features of the invention will be understood by those in the art upon review of the present specification.
- It will be appreciated by those skilled in the art, that the present invention may be practiced in various alternate forms and configurations. The previously detailed description of the preferred embodiments are presented for purposes of clarity of understanding only, and no unnecessary limitations should be implied there from.
Claims (21)
1. A pouch comprising:
a front layer and a back layer;
an expandable polymer positioned between the two layers; and
a seam joining together at least one edge of the two layers;
the expandable polymer in an expanded state forming a bead along the seam.
2. The pouch of claim 1 wherein the expandable polymer bead is formed along three seams.
3. The pouch of claim 1 wherein the expandable polymer is a heat activated polymer.
4. The pouch of claim 3 wherein the expandable polymer is a plastisol based ink.
5. The pouch of claim 3 wherein the expandable polymer is a heat activated puff ink.
6. The pouch in claim 1 wherein the expandable polymer is triggered to expand by radio frequency.
7. The pouch of claim 1 further comprising a gusset panel secured to the front and rear layers to form a gusseted stand-up pouch.
8. A pouch comprising:
a front panel, a back panel and a bottom gusset;
the front panel, the back panel and the bottom gusset each having a plurality of laminate layers;
an expandable polymer positioned between two of the laminate layers in at least one of the panels and the bottom gusset, or in both the front panel and the back panel;
a seam joining together at least one edge of the front panel with at least one edge of the back panel, a seam joining together at least one edge of the front panel with at least one edge of the bottom gusset, or a seam joining together at least one edge of the back panel with at least one edge of the bottom gusset; and
the expandable polymer in an expanded state forming a bead along the joined seam.
9. The pouch of claim 8 wherein the expandable polymer is a heat activated polymer.
10. The pouch of claim 9 wherein the expandable polymer is a plastisol based ink.
11. The pouch of claim 9 wherein the expandable polymer is a heat activated puff ink.
12. The pouch in claim 8 wherein the expandable polymer is triggered to expand by the application of electron beams, microwaves, or the like.
13. A multi-layered stand-up pouch comprising:
a pair of opposed side wall panels joined to each other about the periphery thereof;
an expandable polymer in an expanded state forming a bead along the joined periphery.
14. The pouch of claim 13 wherein expandable polymer is a heat activated polymer.
15. The pouch of claim 13 wherein the expandable polymer is a plastisol based ink.
16. The pouch of claim 13 wherein the expandable polymer is a heat activated puff ink.
17. A method of making a heat sealed pouch, comprising the steps of:
positioning the expandable polymer between two pouch panel layers;
placing the front panel and the back panel together into a sealing jaws;
the sealing jaws heat sealing the front panel and back panel together along at least one edge; and
activating and expanding the expandable polymer outwardly along the at least one edge.
18. The method of claim 17 wherein the sealing jaws are chamfered on the outer edge to direct the expandable polymer outwardly during heat sealing and heat activation.
19. The pouch of claim 17 wherein the expandable polymer is a plastisol based ink.
20. The pouch of claim 17 wherein the expandable polymer is a heat activated puff ink.
21. A method of claim 17 wherein the expandable polymer is triggered to expand by electron beams, microwaves, or the like.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US10/758,145 US20050152624A1 (en) | 2004-01-14 | 2004-01-14 | Pouch having expanded polymer edges |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/758,145 US20050152624A1 (en) | 2004-01-14 | 2004-01-14 | Pouch having expanded polymer edges |
Publications (1)
Publication Number | Publication Date |
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US20050152624A1 true US20050152624A1 (en) | 2005-07-14 |
Family
ID=34740120
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US10/758,145 Abandoned US20050152624A1 (en) | 2004-01-14 | 2004-01-14 | Pouch having expanded polymer edges |
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US (1) | US20050152624A1 (en) |
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US20100115891A1 (en) * | 2006-12-20 | 2010-05-13 | Phillip Neal Sharp | Method of forming a pouch |
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US20120232511A1 (en) * | 2011-03-11 | 2012-09-13 | Herb Velazquez | Personal Care Articles with Tactile Visual Cues |
US8418883B2 (en) | 2006-12-20 | 2013-04-16 | Momentive Performance Materials | Packet for viscous material and kit |
US20130230261A1 (en) * | 2010-11-12 | 2013-09-05 | Goglio S.P.A. | Package, particularly for aseptically packageable products |
US20150036950A1 (en) * | 2013-08-01 | 2015-02-05 | The Procter & Gamble Company | Flexible containers having improved seam and methods of making the same |
US8987544B2 (en) | 2010-12-17 | 2015-03-24 | Kimberly-Clark Worldwide, Inc. | Article with heat-activatable expandable structures |
US9617024B2 (en) | 2006-12-20 | 2017-04-11 | Momentive Performance Materials Inc. | Method for forming a pouch |
US9688459B2 (en) | 2013-08-01 | 2017-06-27 | The Procter & Gamble Company | Disposable flexible containers having surface elements |
US10506670B2 (en) | 2011-04-25 | 2019-12-10 | Graphic Packaging International, Llc | Microwave energy interactive pouches |
US10549896B2 (en) | 2017-05-26 | 2020-02-04 | The Procter & Gamble Plaza | Flexible packages with self-folding |
US20200247105A1 (en) * | 2017-08-25 | 2020-08-06 | Henkel IP & Holding GmbH | Process for forming improved protective eco-friendly pouch and packaging and products made therefrom |
US10981708B2 (en) | 2017-05-26 | 2021-04-20 | The Procter & Gamble Company | Methods of self-folding flexible packages |
US20220002019A1 (en) * | 2020-07-01 | 2022-01-06 | Pregis Innovative Packaging Llc | Bagger with padding expansion |
US11299333B2 (en) | 2017-04-04 | 2022-04-12 | The Procter & Gamble Company | Flexible packages with flat panels |
US11299337B2 (en) | 2017-05-24 | 2022-04-12 | The Procter & Gamble Company | Flexible packages with flat panels |
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US8640920B2 (en) | 2006-12-20 | 2014-02-04 | Momentive Performance Materials Inc. | Method of forming and filling a pouch |
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US20090071978A1 (en) * | 2007-08-31 | 2009-03-19 | Phillip Neal Sharp | Display card with viscous material dispenser and method |
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US20120232511A1 (en) * | 2011-03-11 | 2012-09-13 | Herb Velazquez | Personal Care Articles with Tactile Visual Cues |
US8740869B2 (en) * | 2011-03-11 | 2014-06-03 | Kimberly-Clark Worldwide, Inc. | Personal care articles with tactile visual cues |
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US9688459B2 (en) | 2013-08-01 | 2017-06-27 | The Procter & Gamble Company | Disposable flexible containers having surface elements |
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US11472146B2 (en) * | 2013-08-01 | 2022-10-18 | The Procter & Gamble Company | Flexible containers having improved seam and methods of making the same |
US11299333B2 (en) | 2017-04-04 | 2022-04-12 | The Procter & Gamble Company | Flexible packages with flat panels |
US11299337B2 (en) | 2017-05-24 | 2022-04-12 | The Procter & Gamble Company | Flexible packages with flat panels |
US10549896B2 (en) | 2017-05-26 | 2020-02-04 | The Procter & Gamble Plaza | Flexible packages with self-folding |
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US10981708B2 (en) | 2017-05-26 | 2021-04-20 | The Procter & Gamble Company | Methods of self-folding flexible packages |
US10926930B2 (en) | 2017-05-26 | 2021-02-23 | The Procter & Gamble Company | Flexible packages with self-folding |
US20200247105A1 (en) * | 2017-08-25 | 2020-08-06 | Henkel IP & Holding GmbH | Process for forming improved protective eco-friendly pouch and packaging and products made therefrom |
US11926134B2 (en) * | 2017-08-25 | 2024-03-12 | Henkel Ag & Co. Kgaa | Process for forming improved protective eco-friendly pouch and packaging and products made therefrom |
US20220002019A1 (en) * | 2020-07-01 | 2022-01-06 | Pregis Innovative Packaging Llc | Bagger with padding expansion |
US20220135308A1 (en) * | 2020-10-29 | 2022-05-05 | Pregis Innovative Packaging Llc | Protective article with expandable polyolefin composite |
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AS | Assignment |
Owner name: SONOCO DEVELOPMENT, INC., SOUTH CAROLINA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:VERSLUYS, ROBERT THOR;REEL/FRAME:015322/0701 Effective date: 20040504 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |