WO1997038839A1 - Improved rotational moulding process - Google Patents
Improved rotational moulding process Download PDFInfo
- Publication number
- WO1997038839A1 WO1997038839A1 PCT/AU1997/000224 AU9700224W WO9738839A1 WO 1997038839 A1 WO1997038839 A1 WO 1997038839A1 AU 9700224 W AU9700224 W AU 9700224W WO 9738839 A1 WO9738839 A1 WO 9738839A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- articles
- rotational moulding
- reinforcing elements
- thermoplastics
- thermoplastics material
- Prior art date
Links
Classifications
-
- 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
- B65D19/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
- B65D19/0004—Rigid pallets without side walls
- B65D19/0006—Rigid pallets without side walls the load supporting surface being made of a single element
- B65D19/0008—Rigid pallets without side walls the load supporting surface being made of a single element forming a continuous plane contact surface
- B65D19/001—Rigid pallets without side walls the load supporting surface being made of a single element forming a continuous plane contact surface the base surface being made of a single element
- B65D19/0014—Rigid pallets without side walls the load supporting surface being made of a single element forming a continuous plane contact surface the base surface being made of a single element forming discontinuous or non-planar contact surfaces
- B65D19/0016—Rigid pallets without side walls the load supporting surface being made of a single element forming a continuous plane contact surface the base surface being made of a single element forming discontinuous or non-planar contact surfaces and each contact surface having a stringer-like shape
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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
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/02—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles
- B29C41/04—Rotational or centrifugal casting, i.e. coating the inside of a mould by rotating the mould
-
- 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
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/02—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles
- B29C41/20—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. moulding inserts or for coating articles
-
- 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
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/02—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles
- B29C41/22—Making multilayered or multicoloured articles
-
- 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
- B29C44/04—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 consisting of at least two parts of chemically or physically different materials, e.g. having different densities
- B29C44/0423—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 consisting of at least two parts of chemically or physically different materials, e.g. having different densities by density separation
- B29C44/043—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 consisting of at least two parts of chemically or physically different materials, e.g. having different densities by density separation using a rotating mould
-
- 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
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/26—Non-fibrous reinforcements only
-
- 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
- B65D19/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
- B65D19/0004—Rigid pallets without side walls
- B65D19/0006—Rigid pallets without side walls the load supporting surface being made of a single element
- B65D19/0008—Rigid pallets without side walls the load supporting surface being made of a single element forming a continuous plane contact surface
- B65D19/001—Rigid pallets without side walls the load supporting surface being made of a single element forming a continuous plane contact surface the base surface being made of a single element
- B65D19/0014—Rigid pallets without side walls the load supporting surface being made of a single element forming a continuous plane contact surface the base surface being made of a single element forming discontinuous or non-planar contact surfaces
- B65D19/0018—Rigid pallets without side walls the load supporting surface being made of a single element forming a continuous plane contact surface the base surface being made of a single element forming discontinuous or non-planar contact surfaces and each contact surface having a discrete foot-like shape
-
- 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
- B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
- B65D2519/00004—Details relating to pallets
- B65D2519/00009—Materials
- B65D2519/00014—Materials for the load supporting surface
- B65D2519/00034—Plastic
-
- 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
- B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
- B65D2519/00004—Details relating to pallets
- B65D2519/00009—Materials
- B65D2519/00014—Materials for the load supporting surface
- B65D2519/00044—Combination, e.g. different elements made of different materials, laminates
-
- 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
- B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
- B65D2519/00004—Details relating to pallets
- B65D2519/00009—Materials
- B65D2519/00049—Materials for the base surface
- B65D2519/00069—Plastic
-
- 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
- B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
- B65D2519/00004—Details relating to pallets
- B65D2519/00009—Materials
- B65D2519/00049—Materials for the base surface
- B65D2519/00079—Combination, e.g. different elements made of different materials, laminates
-
- 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
- B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
- B65D2519/00004—Details relating to pallets
- B65D2519/00258—Overall construction
- B65D2519/00313—Overall construction of the base surface
- B65D2519/00328—Overall construction of the base surface shape of the contact surface of the base
- B65D2519/00333—Overall construction of the base surface shape of the contact surface of the base contact surface having a stringer-like shape
-
- 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
- B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
- B65D2519/00004—Details relating to pallets
- B65D2519/00258—Overall construction
- B65D2519/00313—Overall construction of the base surface
- B65D2519/00328—Overall construction of the base surface shape of the contact surface of the base
- B65D2519/00338—Overall construction of the base surface shape of the contact surface of the base contact surface having a discrete foot-like shape
-
- 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
- B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
- B65D2519/00004—Details relating to pallets
- B65D2519/00258—Overall construction
- B65D2519/00398—Overall construction reinforcements
- B65D2519/00432—Non-integral, e.g. inserts
- B65D2519/00437—Non-integral, e.g. inserts on the load supporting surface
-
- 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
- B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
- B65D2519/00004—Details relating to pallets
- B65D2519/00258—Overall construction
- B65D2519/00398—Overall construction reinforcements
- B65D2519/00432—Non-integral, e.g. inserts
- B65D2519/00442—Non-integral, e.g. inserts on the base surface
-
- 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
- B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
- B65D2519/00004—Details relating to pallets
- B65D2519/00547—Connections
- B65D2519/00552—Structures connecting the constitutive elements of the pallet to each other, i.e. load supporting surface, base surface and/or separate spacer
- B65D2519/00557—Structures connecting the constitutive elements of the pallet to each other, i.e. load supporting surface, base surface and/or separate spacer without separate auxiliary elements
- B65D2519/00562—Structures connecting the constitutive elements of the pallet to each other, i.e. load supporting surface, base surface and/or separate spacer without separate auxiliary elements chemical connection, e.g. glued, welded, sealed
-
- 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
- B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
- B65D2519/00004—Details relating to pallets
- B65D2519/00736—Details
- B65D2519/00935—Details with special means for nesting or stacking
- B65D2519/00955—Details with special means for nesting or stacking stackable
- B65D2519/0096—Details with special means for nesting or stacking stackable when empty
Definitions
- This invention relates to rotational moulding of plastics articles and in
- thermoplastics materials employed in rotational moulding
- processes are the polyolefins, including polyethylene and polypropylene,
- thermoplastic resins are suitable for use
- extruder is pumped directly, under screw pressure, into a shaped hollow die
- the injection extrusion of reclaimed plastics is generally used to
- the articles are characterised by high mass, bulky
- the applicant's earlier method comprises a two cycle method of first
- the core of said hollow body a flowable mass of plastics material, preferably
- This method is particularly suited to producing
- the improved method is suited to the production of bulky articles
- structural members such as wall, roof, or floor panels.
- the invention resides in a method for rotational moulding of articles
- thermoplastics material comprising at least one thermoplastics material having a first particle
- thermoplastics material having a larger particle size
- thermoplastic material fuses to form an outer skin
- thermoplastics material fuses to form an inner
- the melt temperature of the second thermoplastics material may be any suitable thermoplastics material.
- thermoplastics material is comprised of
- thermoplastics material is homopolymeric.
- the second thermoplastics material may be a mixture of polymeric
- the second thermoplastics material includes a quantity of
- thermosetting polymeric material thermosetting polymeric material
- thermoplastics material includes a quantity
- the decomposition temperature of the foaming agent is preferably
- the second thermoplastics material includes a quantity of
- If required particles ofthe second thermoplastics material may include
- the method may also include the step
- reinforcing elements are located in a spaced array thereby forming bridges
- the reinforcing elements are larger than the particle size of
- the reinforcing elements may be generally spherical or generally
- the reinforcing elements are mechanically engaged
- the reinforcing elements are at least partially fused to
- the reinforcing elements may include an adhesion resistant coating
- first and second thermoplastics materials during the fusing of said skins.
- the reinforcing elements may include an adhesion resistant
- thermoplastics materials during the fusing of said skins.
- the adhesion resistant additive may be selected from one
- a soap such as calcium stearate or the like, a silicone oil or a suitable
- the reinforcing elements may be of a solid, hollow or foamed
- the reinforcing elements may be comprised of virgin or
- the reinforcing elements may be comprised of ceramics
- the method may also include the
- the reinforcement structure may be constructed of plastics or metallic
- the reinforcement structure comprises steel or aluminium
- the reinforcing structure may comprise angle or channel
- the invention resides in an article manufactured
- the article may comprise a shipping pallet, man-hole cover, tank lid,
- the article may comprise a structural member, such as a wall panel,
- the invention resides in a rotationally moulded
- leg means comprise rails depending from opposite side
- the rails include a series of depending lugs which
- FIG 1 is a perspective view of a shipping pallet manufactured in
- FIG 2 is a partial elevational cross-section of the shipping pallet
- FIG 3 is a partial elevational cross-section of a structural panel made
- FIG 4 is an isometric view of an alternative embodiment of a shipping
- FIG 5 is a front elevation of the shipping pallet shown in FIG 4.
- the shipping pallet 1 of the embodiment comprises a deck 2, and
- FIG 2 is a schematic cross-section illustrating the construction of the
- pallet 1 which comprises an outer skin 5, a foamed inner skin 6, spaced
- reinforcing members 7 in the form of foamed macro-spheres and residual voids 8.
- the random spaced array of reinforcing members forms a bridging
- the outer skin layer 5 is formed from a virgin
- polyolefin typically an opaque polyethylene, which can provide a smooth or
- the outer skin may also be coloured as
- the bridging layer 9 comprises Tollable reinforcing elements in the
- the reinforcing elements are pre-formed by
- reinforcing elements are foamed polyolefin, but may
- the balls are of a diameter
- the reinforcing elements may be of
- any appropriate reliable shape such as cylindrical pellets, and alternatively
- the rotational moulding process uses a mould formed to the desired
- Shipping pallets are generally 1200 mm square by
- polyolefin 50 mm in diameter.
- the rotational moulding apparatus (not shown) can be any of the
- plastics pellets thereby forming the inner skin on the inward facing
- the balls are surface coated with talc in the mould.
- the process produces a pallet having a double skinned wall and a spaced array of reinforcing
- oven temperature refers to the ambient
- plastics materials comprising the skins, so as to take advantage of the
- melt flow index MFI
- plastics materials See for example the melt temperatures set out above in
- plastics material for the inner skin can be chosen such that opposing surfaces of the inner skin touch one another
- plastics need not be pre-sorted by colour.
- thermosetting from reclaimed polyolefins, granulated scrap plastics such as thermosetting
- polymers may be incorporated into the inner skin material, because the pre-
- thermoplastics material can include organic or inorganic filler material.
- a suitable inorganic filler material is talc, whilst the organic filler
- material could be cellulosic including recycled newspapers, rice or peanut
- FIG 3 shows a schematic cross-section of a building panel made
- the building panel 10 includes an outer skin 11 , an inner skin 12, a
- thermosetting plastics spacers 16 The spacing and quantity of reclaimed
- plastics material for the inner skin is chosen so as to substantially
- reinforcing means may be comprised of angle or channel profiled members.
- FIG 4 shows another embodiment of a shipping pallet 17, which
- the central rail provides additional support for the deck thereby resulting
- the deck 18 includes a plurality of recesses 21 in its upper surface.
- the recess are arranged to cooperate with lugs 22 disposed on the lower
- the recess and lug combination is but one arrangement which could
- One alternative might include providing slots in
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU22812/97A AU712587B2 (en) | 1996-04-16 | 1997-04-09 | Improved rotational moulding process |
DE19781702T DE19781702T1 (en) | 1996-04-16 | 1997-04-09 | Improved process for rotational molding |
GB9821869A GB2328396B (en) | 1996-04-16 | 1997-04-09 | Improved rotational moulding process |
CA002251953A CA2251953A1 (en) | 1996-04-16 | 1997-04-09 | Improved rotational moulding process |
US09/171,237 US6180203B1 (en) | 1997-04-09 | 1997-04-09 | Rotational moulding process |
NZ332747A NZ332747A (en) | 1996-04-16 | 1997-04-09 | Improved rotational moulding process |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AUPN9281 | 1996-04-16 | ||
AUPN9281A AUPN928196A0 (en) | 1996-04-16 | 1996-04-16 | Rotational moulding process |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1997038839A1 true WO1997038839A1 (en) | 1997-10-23 |
Family
ID=3793595
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/AU1997/000224 WO1997038839A1 (en) | 1996-04-16 | 1997-04-09 | Improved rotational moulding process |
Country Status (6)
Country | Link |
---|---|
AU (1) | AUPN928196A0 (en) |
CA (1) | CA2251953A1 (en) |
DE (1) | DE19781702T1 (en) |
GB (1) | GB2328396B (en) |
NZ (1) | NZ332747A (en) |
WO (1) | WO1997038839A1 (en) |
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2788063A1 (en) * | 1999-01-05 | 2000-07-07 | Bp Chemicals Snc | ROTOMOLDED COMPOSITION BASED ON POLYETHYLENE |
EP1076011A1 (en) * | 1999-08-12 | 2001-02-14 | Paul Craemer GmbH | Plastic pallet |
US6261490B1 (en) | 1998-09-15 | 2001-07-17 | Rotec Chemicals Limited | Rotational moulding |
EP1273415A2 (en) * | 2001-07-07 | 2003-01-08 | Gordon Ellis & Co. | Moulded articles and methods of producing moulded articles |
WO2003045657A1 (en) * | 2001-11-24 | 2003-06-05 | Gordon Ellis & Company | Rotomoulded articles and a method of producing same |
EP1358988A1 (en) * | 2002-04-30 | 2003-11-05 | Gesikat Ltd. | Making parts by rotational moulding |
EP1360047A1 (en) * | 2001-02-05 | 2003-11-12 | 3DM Technologies, Inc. | Processes for forming plastic, apparatuses for forming plastic, and articles made therefrom |
WO2006114622A1 (en) * | 2005-04-26 | 2006-11-02 | Pvaxx Research And Development Limited | Load carrying apparatus and method of manufacture |
EP1757424A1 (en) * | 2005-08-05 | 2007-02-28 | Allibert-Buckhorn Europe | Rotational moulding process for manufacturing hollow pieces, and skeleton of a load-bearing structure |
EP1775226A3 (en) * | 2004-03-19 | 2008-09-24 | Pvaxx Research and Development Limited | Load-carrying apparatus and methods of manufacture |
EP2345592A1 (en) * | 2004-03-19 | 2011-07-20 | Pvaxx Research and Development Limited | Load-carrying apparatus and methods of manufacture |
WO2015089586A1 (en) * | 2013-12-20 | 2015-06-25 | Aus Group Alliance Pty Ltd | Plastic panel and structures using the same |
EP2190905A4 (en) * | 2007-08-28 | 2017-03-08 | Gala Industries, Inc. | Method and apparatus for enhanced minimal shear molding utilizing extrusional, pelletization, and melt rheological control of pellets and micropellets and molded objects made therefrom |
US11047135B2 (en) | 2017-03-09 | 2021-06-29 | Aus Group Alliance Pty Ltd | Moulded cladding panel |
CN113942253A (en) * | 2021-10-27 | 2022-01-18 | 陕西天翌天线股份有限公司 | Method for integrally preparing composite material shelter |
US11608601B2 (en) | 2017-04-27 | 2023-03-21 | Aus Group Alliance Pty Ltd | Sound attenuation barrier with improved ease of assembly |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2412107B (en) * | 2004-03-19 | 2008-12-24 | Pvaxx Res & Dev Ltd | Load-carrying apparatus |
WO2020077382A1 (en) | 2018-10-15 | 2020-04-23 | Pact Group Industries (ANZ) Pty Ltd | Sound panels and method for manufacture thereof |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
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GB1190379A (en) * | 1966-12-08 | 1970-05-06 | Aquitaine Fisons Ltd | Moulding Plastics |
US3542912A (en) * | 1967-12-12 | 1970-11-24 | Nypel Inc | Rotational molding method for forming multilayered articles |
US4533696A (en) * | 1982-02-20 | 1985-08-06 | Stamicarbon B.V. | Polymer powder compositions, particularly polyethylene powder compositions and objects to be made and made thereof |
GB2228891A (en) * | 1989-03-09 | 1990-09-12 | Mckechnie Consumer Prod | Moulding a pallet onto a high friction surface |
WO1995019877A2 (en) * | 1994-01-22 | 1995-07-27 | The Queen's University Of Belfast | A method of rotational moulding and rotationally moulded products |
WO1995022449A1 (en) * | 1994-02-18 | 1995-08-24 | Automated Plastic Systems Pty. Ltd. | Automatic rotamoulding apparatus and method of control |
WO1996015892A1 (en) * | 1994-11-17 | 1996-05-30 | Exxon Chemical Patents Inc. | Multi-layer particles for rotational molding |
WO1996033060A1 (en) * | 1995-04-19 | 1996-10-24 | Industrie Ilpea S.P.A. | Process for forming items having layers with controlled thickness |
-
1996
- 1996-04-16 AU AUPN9281A patent/AUPN928196A0/en not_active Abandoned
-
1997
- 1997-04-09 GB GB9821869A patent/GB2328396B/en not_active Expired - Fee Related
- 1997-04-09 CA CA002251953A patent/CA2251953A1/en not_active Abandoned
- 1997-04-09 DE DE19781702T patent/DE19781702T1/en not_active Withdrawn
- 1997-04-09 WO PCT/AU1997/000224 patent/WO1997038839A1/en active Application Filing
- 1997-04-09 NZ NZ332747A patent/NZ332747A/en unknown
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1190379A (en) * | 1966-12-08 | 1970-05-06 | Aquitaine Fisons Ltd | Moulding Plastics |
US3542912A (en) * | 1967-12-12 | 1970-11-24 | Nypel Inc | Rotational molding method for forming multilayered articles |
US4533696A (en) * | 1982-02-20 | 1985-08-06 | Stamicarbon B.V. | Polymer powder compositions, particularly polyethylene powder compositions and objects to be made and made thereof |
GB2228891A (en) * | 1989-03-09 | 1990-09-12 | Mckechnie Consumer Prod | Moulding a pallet onto a high friction surface |
WO1995019877A2 (en) * | 1994-01-22 | 1995-07-27 | The Queen's University Of Belfast | A method of rotational moulding and rotationally moulded products |
WO1995022449A1 (en) * | 1994-02-18 | 1995-08-24 | Automated Plastic Systems Pty. Ltd. | Automatic rotamoulding apparatus and method of control |
WO1996015892A1 (en) * | 1994-11-17 | 1996-05-30 | Exxon Chemical Patents Inc. | Multi-layer particles for rotational molding |
WO1996033060A1 (en) * | 1995-04-19 | 1996-10-24 | Industrie Ilpea S.P.A. | Process for forming items having layers with controlled thickness |
Cited By (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6261490B1 (en) | 1998-09-15 | 2001-07-17 | Rotec Chemicals Limited | Rotational moulding |
WO2000040386A1 (en) * | 1999-01-05 | 2000-07-13 | Bp Chemicals Limited | Rotomoulded polyethylene based composition |
FR2788063A1 (en) * | 1999-01-05 | 2000-07-07 | Bp Chemicals Snc | ROTOMOLDED COMPOSITION BASED ON POLYETHYLENE |
EP1076011A1 (en) * | 1999-08-12 | 2001-02-14 | Paul Craemer GmbH | Plastic pallet |
EP1360047A4 (en) * | 2001-02-05 | 2004-07-28 | 3Dm Technologies Inc | Processes for forming plastic, apparatuses for forming plastic, and articles made therefrom |
CN1309545C (en) * | 2001-02-05 | 2007-04-11 | 3Dm技术公司 | Process and equipment for forming plastic and plastic product made therefrom |
EP1360047A1 (en) * | 2001-02-05 | 2003-11-12 | 3DM Technologies, Inc. | Processes for forming plastic, apparatuses for forming plastic, and articles made therefrom |
EP1273415A2 (en) * | 2001-07-07 | 2003-01-08 | Gordon Ellis & Co. | Moulded articles and methods of producing moulded articles |
EP1273415A3 (en) * | 2001-07-07 | 2003-03-05 | Gordon Ellis & Co. | Moulded articles and methods of producing moulded articles |
WO2003045657A1 (en) * | 2001-11-24 | 2003-06-05 | Gordon Ellis & Company | Rotomoulded articles and a method of producing same |
EP1358988A1 (en) * | 2002-04-30 | 2003-11-05 | Gesikat Ltd. | Making parts by rotational moulding |
EP1775226A3 (en) * | 2004-03-19 | 2008-09-24 | Pvaxx Research and Development Limited | Load-carrying apparatus and methods of manufacture |
EP2345592A1 (en) * | 2004-03-19 | 2011-07-20 | Pvaxx Research and Development Limited | Load-carrying apparatus and methods of manufacture |
EP2345593A1 (en) * | 2004-03-19 | 2011-07-20 | Pvaxx Research and Development Limited | Load-carrying apparatus and methods of manufacture |
EP2354023A1 (en) * | 2004-03-19 | 2011-08-10 | Pvaxx Research and Development Limited | Load-carrying apparatus and methods of manufature |
AU2006238941B2 (en) * | 2005-04-26 | 2011-05-26 | Pvaxx Research And Development Limited | Load carrying apparatus and method of manufacture |
WO2006114622A1 (en) * | 2005-04-26 | 2006-11-02 | Pvaxx Research And Development Limited | Load carrying apparatus and method of manufacture |
US9138945B2 (en) | 2005-04-26 | 2015-09-22 | Paxxal Inc. | Load carrying apparatus and method of manufacture |
EP1757424A1 (en) * | 2005-08-05 | 2007-02-28 | Allibert-Buckhorn Europe | Rotational moulding process for manufacturing hollow pieces, and skeleton of a load-bearing structure |
EP2190905A4 (en) * | 2007-08-28 | 2017-03-08 | Gala Industries, Inc. | Method and apparatus for enhanced minimal shear molding utilizing extrusional, pelletization, and melt rheological control of pellets and micropellets and molded objects made therefrom |
WO2015089586A1 (en) * | 2013-12-20 | 2015-06-25 | Aus Group Alliance Pty Ltd | Plastic panel and structures using the same |
US10472825B2 (en) | 2013-12-20 | 2019-11-12 | Aus Group Alliance Pty Ltd | Plastic panel and structures using the same |
US11230841B2 (en) | 2013-12-20 | 2022-01-25 | Aus Group Alliance Pty Ltd | Plastic panel and structures using the same |
US11047135B2 (en) | 2017-03-09 | 2021-06-29 | Aus Group Alliance Pty Ltd | Moulded cladding panel |
US11608601B2 (en) | 2017-04-27 | 2023-03-21 | Aus Group Alliance Pty Ltd | Sound attenuation barrier with improved ease of assembly |
CN113942253A (en) * | 2021-10-27 | 2022-01-18 | 陕西天翌天线股份有限公司 | Method for integrally preparing composite material shelter |
CN113942253B (en) * | 2021-10-27 | 2024-02-20 | 陕西天翌科技股份有限公司 | Method for integrally preparing composite shelter |
Also Published As
Publication number | Publication date |
---|---|
GB2328396B (en) | 1999-12-15 |
DE19781702T1 (en) | 1999-04-29 |
GB9821869D0 (en) | 1998-12-02 |
NZ332747A (en) | 2000-02-28 |
AUPN928196A0 (en) | 1996-05-09 |
GB2328396A (en) | 1999-02-24 |
CA2251953A1 (en) | 1997-10-23 |
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