GB723643A - Improvements relating to the manufacture of thermoplastic compositions - Google Patents

Improvements relating to the manufacture of thermoplastic compositions

Info

Publication number
GB723643A
GB723643A GB2102550A GB2102550A GB723643A GB 723643 A GB723643 A GB 723643A GB 2102550 A GB2102550 A GB 2102550A GB 2102550 A GB2102550 A GB 2102550A GB 723643 A GB723643 A GB 723643A
Authority
GB
United Kingdom
Prior art keywords
plasticizer
support
resin
paste
sheet
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
GB2102550A
Inventor
Wilfrid Henry Hogg
Thomas Ralph Evans
Robert Cantor
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.)
Dunlop Rubber Co Ltd
Original Assignee
Dunlop Rubber Co 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 Dunlop Rubber Co Ltd filed Critical Dunlop Rubber Co Ltd
Priority to GB2102550A priority Critical patent/GB723643A/en
Publication of GB723643A publication Critical patent/GB723643A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/18—Plasticising macromolecular compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2327/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
    • C08J2327/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
    • C08J2327/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
    • C08J2327/06—Homopolymers or copolymers of vinyl chloride

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

Particulate thermoplastic synthetic resin compositions containing absorbed plasticizer are made by spreading a paste of the finely divided resin and a plasticizer as a thin layer on a support, e.g. an endless steel belt, heating the paste, e.g. by infra-red radiation, without agitation to effect absorption of the plasticizer by the resin and to convert the paste into a friable solid sheet and disintegrating the sheet. The compositions may include pigments and fillers which may be added prior to heating. The resin may be polyvinyl chloride and copolymers of vinyl chloride with vinyl acetate and/or vinylidene chloride. The plasticizer may be tricresyl phosphate or dibutyl phthalate. The compositions may be used for making moulded articles by heating at 150 DEG to 180 DEG C. under pressure or for making sheet material by spreading the composition on a movable support, passing the support between calendar rolls at a temperature of 150 DEG to 180 DEG C. and separating if desired the sheet from the support. Specification 723,644, [Group VIII], is referred to.
GB2102550A 1951-08-01 1951-08-01 Improvements relating to the manufacture of thermoplastic compositions Expired GB723643A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2102550A GB723643A (en) 1951-08-01 1951-08-01 Improvements relating to the manufacture of thermoplastic compositions

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2102550A GB723643A (en) 1951-08-01 1951-08-01 Improvements relating to the manufacture of thermoplastic compositions

Publications (1)

Publication Number Publication Date
GB723643A true GB723643A (en) 1955-02-09

Family

ID=10155919

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2102550A Expired GB723643A (en) 1951-08-01 1951-08-01 Improvements relating to the manufacture of thermoplastic compositions

Country Status (1)

Country Link
GB (1) GB723643A (en)

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