GB1356564A - Composite tube production - Google Patents

Composite tube production

Info

Publication number
GB1356564A
GB1356564A GB4173570A GB4173570A GB1356564A GB 1356564 A GB1356564 A GB 1356564A GB 4173570 A GB4173570 A GB 4173570A GB 4173570 A GB4173570 A GB 4173570A GB 1356564 A GB1356564 A GB 1356564A
Authority
GB
United Kingdom
Prior art keywords
tube
adhesive
ribbon
foamable composition
coated
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.)
Expired
Application number
GB4173570A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB4173570A priority Critical patent/GB1356564A/en
Priority to ZA715732A priority patent/ZA715732B/en
Priority to CA121,615A priority patent/CA962932A/en
Priority to AU32906/71A priority patent/AU457084B2/en
Priority to FR7131547A priority patent/FR2105168B1/fr
Priority to DE19712143836 priority patent/DE2143836A1/en
Priority to BE772067A priority patent/BE772067A/en
Publication of GB1356564A publication Critical patent/GB1356564A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B29C44/20—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of indefinite length
    • B29C44/32—Incorporating or moulding on preformed parts, e.g. linings, inserts or reinforcements
    • B29C44/322—Incorporating or moulding on preformed parts, e.g. linings, inserts or reinforcements the preformed parts being elongated inserts, e.g. cables
    • B29C44/324—Incorporating or moulding on preformed parts, e.g. linings, inserts or reinforcements the preformed parts being elongated inserts, e.g. cables the preformed parts being tubular or folded to a tubular shape
    • 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
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/56—Winding and joining, e.g. winding spirally
    • B29C53/58—Winding and joining, e.g. winding spirally helically
    • B29C53/581—Winding and joining, e.g. winding spirally helically using sheets or strips consisting principally of plastics 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
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/80—Component parts, details or accessories; Auxiliary operations
    • B29C53/82—Cores or mandrels
    • B29C53/821—Mandrels especially adapted for winding and joining
    • 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
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/80—Component parts, details or accessories; Auxiliary operations
    • B29C53/84—Heating or cooling
    • B29C53/845—Heating or cooling especially adapted for winding and joining
    • 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
    • B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
    • B29C63/02—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using sheet or web-like material
    • B29C63/04—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using sheet or web-like material by folding, winding, bending or the like
    • B29C63/08—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using sheet or web-like material by folding, winding, bending or the like by winding helically
    • B29C63/10—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using sheet or web-like material by folding, winding, bending or the like by winding helically around tubular articles
    • B29C63/105—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using sheet or web-like material by folding, winding, bending or the like by winding helically around tubular articles continuously
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L9/00—Rigid pipes
    • F16L9/16—Rigid pipes wound from sheets or strips, with or without 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
    • B29K2075/00—Use of PU, i.e. polyureas or polyurethanes 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
    • 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
    • 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
    • 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
    • B29L2023/00—Tubular articles
    • B29L2023/22—Tubes or pipes, i.e. rigid

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Laminated Bodies (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

1356564 Composite tube IMPERIAL CHEMICAL INDUSTRIES Ltd 23 Aug 1971 [1 Sept 1970] 41735/70 Heading F2P A method of preparing a composite tube comprises rotating a rigid core tube about its longitudinal axis and moving the said tube along said axis, at the same time offering a flexible ribbon, coated with a foamable composition, tangentially to the rotating tube and at an angle of less than 90 degrees to the said axis so that the edges of axially adjacent turns of the coated ribbon are generally in overlapping or butt alignment with each other and form a helically wound envelope or sheath around the tube with the foamable composition in the annulus so formed, and allowing the foamable composition to foam and cure, characterized in that at least one of the surfaces of the rigid tube and/or ribbon is provided with a coating of a substantially tack-free heat sensitizable adhesive prior to the application of the foam, and the adhesive is subsequently heated whereby the rigid tube and/or ribbon is bonded to the foam. As shown in Fig. 1 the inner tube is wound from tapes 2, 3 on to mandrel 1, and the flexible ribbon 4 having a foamable composition 6 thereon is offered thereto. A sealing strip 5 covers the seam of the wound sheath, but an internal bridging strip may be used or no bridging strip may be used. All surfaces shown hatched are coated with tack-free adhesive, but different adhesive compositions may be used on different surfaces (e.g. thermoplastics on the ribbon and isocyanate on the core tube). Hot air is passed through holes (not shown) in the mandrel and a radiant heater 7 may also be used. Materials: (a) The inner tube and flexible sheath.-Paper, cardboard, woven fibres, unwoven fibres, textile fibre, non-textile fibre, metal, plastics, glass reinforced plastics, plastics coated paper, plastics coated metal foil, corrugated cardboard or asbestos faced with metal foil or paper or faced with surfaces made of the same material as the corrugated material. The material may be treated with colouring agent, waterproofing, rat resistant agent, size. Hessian or glass fibre fabric may be treated with thermosetting resin and cured after winding into tubular form. The material may be formed with longitudinal and/or transverse ribs on one or both surfaces. (b) Sealing strip (5).-As (a) above except where rigidity or thickness are unsuitable (e.g. corrugated sheet or laminated corrugated sheet). (c) Foamable composition.-Thermoplastic polymeric material: polyamides, polyesters, polyacetal, polycarbonates, polysulphones, polymers and copolymers of ethylenically unsaturated monomers (e.g. ethylene, propylene, 4-methyl pent-1-ene, styrene, vinyl chloride, acrylonitrile, butadiene, acrylic esters). Curable polymeric materials: curable polyurethanes, phenol/formaldehyde resins, epoxy resins, systems having at least one polymerizable vinyl ether containing at least two vinyl groups per molecule, polyisocyanurates. The foams may be flexible or rigid, open cell or closed cell and may be applied hot or cold. (d) The adhesive.-Thermosetting plastics based on isocyanate and epoxy resins with or without addition of modifying agents such as polyesters. The adhesive preferably cures between 80‹ and 120‹ C. They may be applied in solvent or under solvent free conditions, and a chemical activator may be used if desired. Thermoplastic adhesives having tacky properties between 50‹ and 150‹ C. and preferably between 80‹ and 120‹ C. may be used by polyvinyl acetate, polyvinyl chloride, polyolefins (polyethylene) and their copolymers. When polyurethane foams are used it is preferred that non-aqueous adhesives are used and it is also preferable to prevent ingress of moisture, e.g. by using a water impervious adhesive or by using materials having a waterproof coating (e.g. polythene) for forming the inner tube and outer sheath.
GB4173570A 1970-09-01 1970-09-01 Composite tube production Expired GB1356564A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
GB4173570A GB1356564A (en) 1970-09-01 1970-09-01 Composite tube production
ZA715732A ZA715732B (en) 1970-09-01 1971-08-27 Composite tube
CA121,615A CA962932A (en) 1970-09-01 1971-08-27 Composite tube
AU32906/71A AU457084B2 (en) 1970-09-01 1971-08-31 Composite tube
FR7131547A FR2105168B1 (en) 1970-09-01 1971-08-31
DE19712143836 DE2143836A1 (en) 1970-09-01 1971-09-01 Process for the production of pipes that are put together
BE772067A BE772067A (en) 1970-09-01 1971-09-01 METHOD FOR MANUFACTURING A COMPOSITE TUBE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4173570A GB1356564A (en) 1970-09-01 1970-09-01 Composite tube production

Publications (1)

Publication Number Publication Date
GB1356564A true GB1356564A (en) 1974-06-12

Family

ID=10421131

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4173570A Expired GB1356564A (en) 1970-09-01 1970-09-01 Composite tube production

Country Status (7)

Country Link
AU (1) AU457084B2 (en)
BE (1) BE772067A (en)
CA (1) CA962932A (en)
DE (1) DE2143836A1 (en)
FR (1) FR2105168B1 (en)
GB (1) GB1356564A (en)
ZA (1) ZA715732B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112833261A (en) * 2019-11-25 2021-05-25 湖南诚路管业科技有限公司 Durable composite plastic pipe

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4269638A (en) * 1979-10-10 1981-05-26 The Okonite Company Method of manufacturing a sealed cable employing a wrapped foam barrier
US4270961A (en) * 1979-10-10 1981-06-02 The Okonite Company Method of manufacturing a sealed cable employing an extruded foam barrier
GB8500988D0 (en) * 1985-01-15 1985-02-20 Barrows B F Applying protective coatings to structures
FR2665665B1 (en) * 1990-08-08 1994-05-06 Vieillard Paul Henri PROCESS FOR THE PRODUCTION OF FLEXIBLE TUBULAR ELEMENTS MADE OF RESISTANT FIBERS LINKED BY SYNTHETIC RESIN ARRANGED AROUND A FLEXIBLE INFLATABLE BODY AND COMPONENTS THUS OBTAINED.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112833261A (en) * 2019-11-25 2021-05-25 湖南诚路管业科技有限公司 Durable composite plastic pipe

Also Published As

Publication number Publication date
AU457084B2 (en) 1975-01-16
FR2105168A1 (en) 1972-04-28
AU3290671A (en) 1973-03-08
BE772067A (en) 1972-03-01
DE2143836A1 (en) 1972-03-02
ZA715732B (en) 1972-04-26
CA962932A (en) 1975-02-18
FR2105168B1 (en) 1975-07-11

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees