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GB1061971A - Improvements in or relating to the production of cellular plastic materials - Google Patents

Improvements in or relating to the production of cellular plastic materials

Info

Publication number
GB1061971A
GB1061971A GB2804/63A GB280463A GB1061971A GB 1061971 A GB1061971 A GB 1061971A GB 2804/63 A GB2804/63 A GB 2804/63A GB 280463 A GB280463 A GB 280463A GB 1061971 A GB1061971 A GB 1061971A
Authority
GB
United Kingdom
Prior art keywords
around
production
blowing agent
tape
extrudate
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
GB2804/63A
Inventor
Ronald Richard Webb
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.)
Howard Clayton Wright Ltd
Original Assignee
Howard Clayton Wright 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 Howard Clayton Wright Ltd filed Critical Howard Clayton Wright Ltd
Priority to GB2804/63A priority Critical patent/GB1061971A/en
Publication of GB1061971A publication Critical patent/GB1061971A/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
    • B29C44/34—Auxiliary operations
    • B29C44/36—Feeding the material to be shaped
    • B29C44/46—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length
    • B29C44/50—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length using pressure difference, e.g. by extrusion or by spraying
    • B29C44/505—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length using pressure difference, e.g. by extrusion or by spraying extruding the compound through a flat die
    • 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

Landscapes

  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

A method for the production of a flexible low density cellular plastics material comprises feeding a polymer and a blowing agent into an extrusion machine, activating the blowing agent and forming the foamed extrudate on or around a flexible tape. Alternatively, the blowing agent may be activated after the extrudate is formed on or around the tape. The polymer may be polyvinylchloride and the tape may be aluminium foil or metallised polyethylene terephthalate film, or the latter laminated with polyvinyl chloride sheet. A low density is specified as being in the range of 5 to 15 lb./cu. ft. The method may also comprise feeding the foamed extrudate into a second extrusion machine and forming an outer plastics covering, e.g. of polyvinyl chloride, around the foamed extrudate.
GB2804/63A 1963-01-23 1963-01-23 Improvements in or relating to the production of cellular plastic materials Expired GB1061971A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2804/63A GB1061971A (en) 1963-01-23 1963-01-23 Improvements in or relating to the production of cellular plastic materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2804/63A GB1061971A (en) 1963-01-23 1963-01-23 Improvements in or relating to the production of cellular plastic materials

Publications (1)

Publication Number Publication Date
GB1061971A true GB1061971A (en) 1967-03-15

Family

ID=9746242

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2804/63A Expired GB1061971A (en) 1963-01-23 1963-01-23 Improvements in or relating to the production of cellular plastic materials

Country Status (1)

Country Link
GB (1) GB1061971A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2123203A1 (en) * 1971-01-29 1972-09-08 Loustau Jean Reinforced expanded plastics - injection moulded to large dimensions without increase in weight
US3995082A (en) * 1976-03-12 1976-11-30 U.S. Industries, Inc. Weatherstrip with mounting insert
GB2158004A (en) * 1984-03-20 1985-11-06 Standard Products Co Extruding a decorative trim strip
US4722818A (en) * 1984-03-20 1988-02-02 The Standard Products Company Method for making an elongated composite article
US6776948B1 (en) 2001-07-26 2004-08-17 Ultrafab, Inc. Method and apparatus for applying coatings of molten thermoplastic material over closed pore elastomer foam substrates

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2123203A1 (en) * 1971-01-29 1972-09-08 Loustau Jean Reinforced expanded plastics - injection moulded to large dimensions without increase in weight
US3995082A (en) * 1976-03-12 1976-11-30 U.S. Industries, Inc. Weatherstrip with mounting insert
GB2158004A (en) * 1984-03-20 1985-11-06 Standard Products Co Extruding a decorative trim strip
US4722818A (en) * 1984-03-20 1988-02-02 The Standard Products Company Method for making an elongated composite article
US6776948B1 (en) 2001-07-26 2004-08-17 Ultrafab, Inc. Method and apparatus for applying coatings of molten thermoplastic material over closed pore elastomer foam substrates

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