US3619314A - Method of joining adjacent sheets of elastomeric material on a support structure - Google Patents

Method of joining adjacent sheets of elastomeric material on a support structure Download PDF

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Publication number
US3619314A
US3619314A US787492A US3619314DA US3619314A US 3619314 A US3619314 A US 3619314A US 787492 A US787492 A US 787492A US 3619314D A US3619314D A US 3619314DA US 3619314 A US3619314 A US 3619314A
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United States
Prior art keywords
support structure
elastomeric material
joint
sheets
marginal portions
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US787492A
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Marcel Ecureux
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Strati France SA
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Strati France SA
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D5/00—Roof covering by making use of flexible material, e.g. supplied in roll form
    • E04D5/14—Fastening means therefor
    • E04D5/148—Fastening means therefor fastening by gluing
    • 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
    • B29C65/40—Applying molten plastics, e.g. hot melt
    • B29C65/42—Applying molten plastics, e.g. hot melt between pre-assembled parts
    • 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
    • B29C66/02—Preparation of the material, in the area to be joined, prior to joining or welding
    • B29C66/022—Mechanical pre-treatments, e.g. reshaping
    • 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
    • B29C66/114—Single butt joints
    • B29C66/1142—Single butt to butt joints
    • 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
    • B29C66/14—Particular design of joint configurations particular design of the joint cross-sections the joint having the same thickness as the thickness 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
    • B29C66/40—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
    • 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
    • B29C66/721—Fibre-reinforced materials
    • B29C66/7214—Fibre-reinforced materials characterised by the length of the fibres
    • B29C66/72141—Fibres of continuous length
    • 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
    • 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
    • B29C66/729—Textile or other fibrous material made from plastics
    • B29C66/7292—Textile or other fibrous material made from plastics coated
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D5/00—Roof covering by making use of flexible material, e.g. supplied in roll form
    • E04D5/14—Fastening means therefor
    • E04D5/141—Fastening means therefor characterised by the location of the fastening means
    • E04D5/142—Fastening means therefor characterised by the location of the fastening means along the edge of the flexible material
    • 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
    • B29C66/70—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
    • B29C66/721—Fibre-reinforced materials
    • B29C66/7212—Fibre-reinforced materials characterised by the composition of the fibres
    • 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
    • B29C66/7232—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 comprising a non-plastics layer
    • B29C66/72327—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 comprising a non-plastics layer consisting of natural products or their composites, not provided for in B29C66/72321 - B29C66/72324
    • B29C66/72328—Paper
    • 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
    • B29C66/7234—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 comprising a barrier layer
    • 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
    • B29K2011/00—Use of rubber derived from chloroprene as moulding material
    • 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
    • B29K2019/00—Use of rubber not provided for in a single one of main groups B29K2007/00 - B29K2011/00, as moulding material
    • 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
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/18—Polymers of hydrocarbons having four or more carbon atoms, e.g. polymers of butylene, e.g. PB, i.e. polybutylene
    • B29K2023/22—Copolymers of isobutene, e.g. butyl rubber
    • 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
    • B29K2063/00—Use of EP, i.e. epoxy resins or derivatives thereof, as moulding material
    • 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
    • B29K2071/00—Use of polyethers, e.g. PEEK, i.e. polyether-etherketone or PEK, i.e. polyetherketone or derivatives thereof, as moulding material
    • 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
    • B29K2083/00—Use of polymers having silicon, with or without sulfur, nitrogen, oxygen, or carbon only, in the main chain, as moulding material
    • 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
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • B29K2105/08—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns
    • B29K2105/0809—Fabrics
    • 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
    • B29K2223/00—Use of polyalkenes or derivatives thereof as reinforcement
    • B29K2223/10—Polymers of propylene
    • B29K2223/12—PP, i.e. polypropylene
    • 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
    • B29K2277/00—Use of PA, i.e. polyamides, e.g. polyesteramides or derivatives thereof, as reinforcement
    • 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
    • B29K2309/00—Use of inorganic materials not provided for in groups B29K2303/00 - B29K2307/00, as reinforcement
    • B29K2309/08—Glass
    • 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
    • B29K2309/00—Use of inorganic materials not provided for in groups B29K2303/00 - B29K2307/00, as reinforcement
    • B29K2309/12—Asbestos
    • 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
    • B29L2031/10—Building elements, e.g. bricks, blocks, tiles, panels, posts, beams
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/19—Sheets or webs edge spliced or joined
    • Y10T428/192—Sheets or webs coplanar
    • Y10T428/195—Beveled, stepped, or skived in thickness
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24777—Edge feature
    • Y10T428/24785—Edge feature including layer embodying mechanically interengaged strands, strand portions or strand-like strips [e.g., weave, knit, etc.]

Definitions

  • ABSTRACT A method of joining adjacent sheets of elastomeric material to each other and to a support structure. Each sheet includes at least a top and bottom layer of elastomeric material and a layer of reinforcing textile material disposed therebetween and having marginal portions extending beyond said top and bottom layers.
  • the novel method comprises the steps of applying a liquid elastomer solution to the underside of the adjacent marginal portions and pressing the marginal portions against the support structure in an overlapping relation thereby joining said adjacent portions and adhering the joint to the support structure. A liquid elastomer solution is then applied over the joint to provide a continuous outer surface.
  • This invention relates to methods of fastening and jointing elastomeric sealing or impervious sheets on floors, walls and roofs.
  • elastomers of different types are widely known for covering terraces and roofs.
  • the sheets are reinforced or supported by various products such as fabric, cardboard, asbestos, expanded or foam plastic, etc.
  • the sheets consist of a suitable elastomeric material reinforced with a strip of fabric or other relatively loose material of which the marginal ortions project or extend beyond the sheet edges on both sides.
  • the sheet material is unrolled flat on the support structure, for example a concrete surface.
  • One face of the projecting fabric marginal portion is coated with a layer of liquid elastomer in the form of a solution, emulsion or monomer, so that it will adhere to the underlying support structure.
  • the assembly is allowed to dry or polymerize for the necessary time.
  • the cemented and coated fabric along the marginal portion of the preceding width is covered with the projecting fabric marginal portion of the second width previously coated with a layer of liquid elastomer.
  • the joint thus formed is coated with one or more surface layers for levelling the joint up to the strip.
  • the invention provides a novel method for cementing adjacent sheets of elastomeric material in strip fonn to one another and also to an underlying support.
  • the coating is reinforced by two fabric lips" and the joint is devoid of any lack of continuity that is present when cementing or welding adjacent sheets to one another according to conventional methods.
  • FIGS. 1 through 3 of the drawing diagrammatically illustrate the steps of the novel method of this invention.
  • Sheets made from various elastomers such as silicones, neoprene, Hypalon, is a fluorosulfonated polyethylene produced by the US. Company Dupont de Nemours, butyl, isobutylene, etc., polymerizable resins such as polyester, polyether, epoxyresins, etc. can be used for carrying out the method of this invention.
  • the joint coatings may consist of solutions of these elastomers or liquids prior to their polymerization.
  • the reinforcing fabric may consist of any suitable material, such as nylon, polypropylene, glass, etc.
  • reinforcing materials may be used in the manufacture of said sheets, such as glass, asbestos, etc.
  • a 3-feet wide sheet is prepared by cementing an asbestos paper sheet (300 grams per sq. m. 0.06 lb. per sq. ft.) to a 0.3 mm. (0.012 inch)-thick rubber sheet of fluorosulfonated polyethylene known as I-Iypalon.
  • Hypalon sheet of same thickness (0.3 mm. or 0.012 inch) is cemented thereover.
  • the sandwich thus obtained is homogeneous throughout its 3-feet width, but the fabric projects from both longitudinal edges of the sheet by about 5 mm. (0.2 inch).
  • the joint coating may consist for example of:
  • this joint coating is applied as a first layer.
  • This I-Iypalon coating may contain the desired fillers, pigments, etc. according to the techniques well known in the use of paints of this type.
  • the sheet thus obtained is unrolled on the roof surface, for example, a concrete surface.
  • the projecting marginal portions of the fabric are coated by using by using a solution of a product such as neoprene which is allowed to dry during the necessary time, and the next sheet width is then unrolled.
  • a product such as neoprene which is allowed to dry during the necessary time
  • This second width is disposed in such a manner that its projecting fabric covers the previously coated fabric (see FIG. 3).
  • This projecting portion is cemented by using another layer of rubber or neoprene solution.
  • the opposition face of the second sheet is coated in turn and receives the projecting fabric portion of the third sheet, and so forth.
  • the glass fabric may be replaced by a nylon fabric.
  • EXAMPLE 2 The sheet consists of butyl rubber substituted for the abovementioned Hypalon.
  • the cementing coating consists of a butyl rubber solution containing adequate vulcanizing agents and fillers. In this case, only one coating is applied to the different sheets.
  • the support I to be covered receives a sheet 2 consisting of a suitable elastomer and including therein, a textile reinforcement 3 formed with marginal portions 4 projecting along the longitudinal sides or edges thereof.
  • the lower face of these projecting portions 4 are coated with a joint-forming material 5 such as a liquid elastomer solution (FIG. 2); the edges 4 of the two adjacent sheets are superimposed to each other and the assembly is allowed to dry or polymerize so as to simultaneously assemble or joint the two adjacent sheets and cause them to adhere to the underlying support.
  • a joint-forming material 5 such as a liquid elastomer solution (FIG. 2)
  • a joint is formed along the overlapping marginal portions 4 of the assembled sheets by using a suitable cast product 6 such as an elastomer solution in a suitable solvent, so as to eliminate any discontinuity between these sheets.

Abstract

A method of joining adjacent sheets of elastomeric material to each other and to a support structure. Each sheet includes at least a top and bottom layer of elastomeric material and a layer of reinforcing textile material disposed therebetween and having marginal portions extending beyond said top and bottom layers. The novel method comprises the steps of applying a liquid elastomer solution to the underside of the adjacent marginal portions and pressing the marginal portions against the support structure in an overlapping relation thereby joining said adjacent portions and adhering the joint to the support structure. A liquid elastomer solution is then applied over the joint to provide a continuous outer surface.

Description

United States Patent Inventor Marcel Ecureux Paris, France App]. No. 787,492 Filed Dec. 27, 1968 Patented Nov. 9, 1971 Assignee Strati-France S. A.
Paris, France Priority Jan. 5, 1968 France 135,006
METHOD OE JOINING ADJACENT SHEETS OF ELASTOMERIC MATERIAL ON A SUPPORT STRUCTURE Primary Examiner- Philip Dier Att0rneyAmster & Rothstein ABSTRACT: A method of joining adjacent sheets of elastomeric material to each other and to a support structure. Each sheet includes at least a top and bottom layer of elastomeric material and a layer of reinforcing textile material disposed therebetween and having marginal portions extending beyond said top and bottom layers. The novel method comprises the steps of applying a liquid elastomer solution to the underside of the adjacent marginal portions and pressing the marginal portions against the support structure in an overlapping relation thereby joining said adjacent portions and adhering the joint to the support structure. A liquid elastomer solution is then applied over the joint to provide a continuous outer surface.
This invention relates to methods of fastening and jointing elastomeric sealing or impervious sheets on floors, walls and roofs.
The use of elastomers of different types is widely known for covering terraces and roofs. Generally the sheets are reinforced or supported by various products such as fabric, cardboard, asbestos, expanded or foam plastic, etc.
Regardless of the type or mode of manufacture of these sheets difi'iculty exists in the fastening of these sheets under adequate fluid-tightness conditions both to one another or to a support. Various cements are used to this end, but the covering thus obtained is not uniform in the cemented portions. Alternatively, the sheets may be welded. However, welding, although more satisfactory, is not adequate for making jointless rubberlike coverings.
Accordingly it is an object of this invention to provide a method for fastening adjacent sheets of elastomeric material on a roof or like support structure, with the joint or seam having continuity with the sheets.
In a preferred embodiment of the invention, the sheets consist of a suitable elastomeric material reinforced with a strip of fabric or other relatively loose material of which the marginal ortions project or extend beyond the sheet edges on both sides.
The sheet material is unrolled flat on the support structure, for example a concrete surface. One face of the projecting fabric marginal portion is coated with a layer of liquid elastomer in the form of a solution, emulsion or monomer, so that it will adhere to the underlying support structure. The assembly is allowed to dry or polymerize for the necessary time. When the next width of sheet material is laid the cemented and coated fabric along the marginal portion of the preceding width is covered with the projecting fabric marginal portion of the second width previously coated with a layer of liquid elastomer. Then, the joint thus formed is coated with one or more surface layers for levelling the joint up to the strip.
Thus, the invention provides a novel method for cementing adjacent sheets of elastomeric material in strip fonn to one another and also to an underlying support. At the joint the coating is reinforced by two fabric lips" and the joint is devoid of any lack of continuity that is present when cementing or welding adjacent sheets to one another according to conventional methods.
FIGS. 1 through 3 of the drawing diagrammatically illustrate the steps of the novel method of this invention.
Sheets made from various elastomers such as silicones, neoprene, Hypalon, is a fluorosulfonated polyethylene produced by the US. Company Dupont de Nemours, butyl, isobutylene, etc., polymerizable resins such as polyester, polyether, epoxyresins, etc. can be used for carrying out the method of this invention.
The joint coatings may consist of solutions of these elastomers or liquids prior to their polymerization.
The reinforcing fabric may consist of any suitable material, such as nylon, polypropylene, glass, etc.
If desired, other reinforcing materials may be used in the manufacture of said sheets, such as glass, asbestos, etc.
EXAMPLE I A 3-feet wide sheet is prepared by cementing an asbestos paper sheet (300 grams per sq. m. 0.06 lb. per sq. ft.) to a 0.3 mm. (0.012 inch)-thick rubber sheet of fluorosulfonated polyethylene known as I-Iypalon.
n the surface of this first I-Iypalon sheet there is cemented a glass fabric weighing 52 grams per sq. m. (7 yarns per 0.01
mm.) (i.e. 0.01066 lb./sq. ft.) and then another Hypalon sheet of same thickness (0.3 mm. or 0.012 inch) is cemented thereover.
The sandwich thus obtained is homogeneous throughout its 3-feet width, but the fabric projects from both longitudinal edges of the sheet by about 5 mm. (0.2 inch).
The joint coating may consist for example of:
a solution or emulsion of neoprene rubber in a suitable solvent and containing the additives and fillers usually contemplated for these well-known coatings; this joint coating is applied as a first layer.
' a I-Iypalon rubber solution in a suitable solvent, which is applied as the second layer and as the final layer.
This I-Iypalon coating may contain the desired fillers, pigments, etc. according to the techniques well known in the use of paints of this type.
The sheet thus obtained is unrolled on the roof surface, for example, a concrete surface.
The projecting marginal portions of the fabric are coated by using by using a solution of a product such as neoprene which is allowed to dry during the necessary time, and the next sheet width is then unrolled.
This second width is disposed in such a manner that its projecting fabric covers the previously coated fabric (see FIG. 3).
This projecting portion is cemented by using another layer of rubber or neoprene solution.
The opposition face of the second sheet is coated in turn and receives the projecting fabric portion of the third sheet, and so forth.
The glass fabric may be replaced by a nylon fabric.
EXAMPLE 2 The sheet consists of butyl rubber substituted for the abovementioned Hypalon.
The cementing coating consists of a butyl rubber solution containing adequate vulcanizing agents and fillers. In this case, only one coating is applied to the different sheets.
Referring to FIG. 1, during the first step, the support I to be covered receives a sheet 2 consisting of a suitable elastomer and including therein, a textile reinforcement 3 formed with marginal portions 4 projecting along the longitudinal sides or edges thereof.
During the second step, the lower face of these projecting portions 4 are coated with a joint-forming material 5 such as a liquid elastomer solution (FIG. 2); the edges 4 of the two adjacent sheets are superimposed to each other and the assembly is allowed to dry or polymerize so as to simultaneously assemble or joint the two adjacent sheets and cause them to adhere to the underlying support.
During the third step, a joint is formed along the overlapping marginal portions 4 of the assembled sheets by using a suitable cast product 6 such as an elastomer solution in a suitable solvent, so as to eliminate any discontinuity between these sheets.
What I claim is:
1. A method of joining adjacent sheets of elastomeric material on a support structure each sheet including a top and bottom layer of elastomeric material and a layer of reinforcing textile material disposed therebetween and having marginal portions extending beyond said top and bottom layers, said method comprising the steps of:
a. applying a liquid elastomer solution to underside of the adjacent marginal portions;
b. pressing said marginal portions against the support structure in an overlapping relation thereby joining said adjacent marginal portions and adhering said joint to the support structure;
0. applying a liquid elastomer solution over said joint to provide a continuous outer surface.
US787492A 1968-01-05 1968-12-27 Method of joining adjacent sheets of elastomeric material on a support structure Expired - Lifetime US3619314A (en)

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3664907A (en) * 1970-02-02 1972-05-23 Huyck Corp Industrial conveyor belts
US4077822A (en) * 1976-11-17 1978-03-07 Celanese Corporation Splice for use during the thermal stabilization of a flat multifilament band of an acrylic fibrous material comprising at least two segments
US4239795A (en) * 1974-07-17 1980-12-16 Dynamit Nobel Aktiengesellschaft Protective layer for surface seals in building construction, underground construction, and civil engineering construction
WO1983000520A1 (en) * 1981-07-30 1983-02-17 Dow Corning Silicone elastomer based roofing system
US4396665A (en) * 1980-06-16 1983-08-02 W. R. Grace & Co. Self-adhesive roofing laminates having metal layer therein
US4496412A (en) * 1984-01-03 1985-01-29 The Boeing Company Multiple lap-joint for thermoplastic laminates and method of making the lap-joint
US4564543A (en) * 1984-01-03 1986-01-14 The Boeing Company Multiple lap-joint for thermoplastic laminates
US4668315A (en) * 1981-07-30 1987-05-26 Dow Corning Corporation Silicone elastomer based roofing system
US4715915A (en) * 1986-06-19 1987-12-29 Carlisle Corporation Longitudinal seam and method of forming
US5350614A (en) * 1991-07-25 1994-09-27 United Technologies Corporation All composite article of manufacture including first and second composite members joined by a composite hinge
US20170065038A1 (en) * 2015-09-08 2017-03-09 Apple Inc. Band with folded seam for an electronic device
WO2020039311A3 (en) * 2018-08-23 2020-04-23 Clupak Ag Method for producing a rubber cloth

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1994262A (en) * 1933-06-05 1935-03-12 Winding Arthur Method of laying roofing sheets
US2406939A (en) * 1942-01-27 1946-09-03 Libbey Owens Ford Glass Co Laminated glass glazing unit
US3095339A (en) * 1958-03-25 1963-06-25 Lubrizol Corp Asphalt roofing element
US3292334A (en) * 1962-06-05 1966-12-20 Lubrizol Corp Roofing element and roof surface

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1994262A (en) * 1933-06-05 1935-03-12 Winding Arthur Method of laying roofing sheets
US2406939A (en) * 1942-01-27 1946-09-03 Libbey Owens Ford Glass Co Laminated glass glazing unit
US3095339A (en) * 1958-03-25 1963-06-25 Lubrizol Corp Asphalt roofing element
US3292334A (en) * 1962-06-05 1966-12-20 Lubrizol Corp Roofing element and roof surface

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3664907A (en) * 1970-02-02 1972-05-23 Huyck Corp Industrial conveyor belts
US4239795A (en) * 1974-07-17 1980-12-16 Dynamit Nobel Aktiengesellschaft Protective layer for surface seals in building construction, underground construction, and civil engineering construction
US4077822A (en) * 1976-11-17 1978-03-07 Celanese Corporation Splice for use during the thermal stabilization of a flat multifilament band of an acrylic fibrous material comprising at least two segments
US4396665A (en) * 1980-06-16 1983-08-02 W. R. Grace & Co. Self-adhesive roofing laminates having metal layer therein
WO1983000520A1 (en) * 1981-07-30 1983-02-17 Dow Corning Silicone elastomer based roofing system
US4668315A (en) * 1981-07-30 1987-05-26 Dow Corning Corporation Silicone elastomer based roofing system
US4564543A (en) * 1984-01-03 1986-01-14 The Boeing Company Multiple lap-joint for thermoplastic laminates
US4496412A (en) * 1984-01-03 1985-01-29 The Boeing Company Multiple lap-joint for thermoplastic laminates and method of making the lap-joint
US4715915A (en) * 1986-06-19 1987-12-29 Carlisle Corporation Longitudinal seam and method of forming
US5350614A (en) * 1991-07-25 1994-09-27 United Technologies Corporation All composite article of manufacture including first and second composite members joined by a composite hinge
US20170065038A1 (en) * 2015-09-08 2017-03-09 Apple Inc. Band with folded seam for an electronic device
US10064458B2 (en) * 2015-09-08 2018-09-04 Apple Inc. Band with folded seam for an electronic device
WO2020039311A3 (en) * 2018-08-23 2020-04-23 Clupak Ag Method for producing a rubber cloth

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BE725737A (en) 1969-05-29
DE1816574A1 (en) 1969-07-31
LU57605A1 (en) 1969-04-08
FR1604546A (en) 1971-11-29

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