GB714606A - Production of cellular polyvinyl chloride - Google Patents

Production of cellular polyvinyl chloride

Info

Publication number
GB714606A
GB714606A GB25593/51A GB2559351A GB714606A GB 714606 A GB714606 A GB 714606A GB 25593/51 A GB25593/51 A GB 25593/51A GB 2559351 A GB2559351 A GB 2559351A GB 714606 A GB714606 A GB 714606A
Authority
GB
United Kingdom
Prior art keywords
specified
plasticizer
moulding
vinyl
polyvinyl chloride
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
GB25593/51A
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.)
Sponge Rubber Products Co
Original Assignee
Sponge Rubber Products Co
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 Sponge Rubber Products Co filed Critical Sponge Rubber Products Co
Publication of GB714606A publication Critical patent/GB714606A/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
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
    • C08J9/10—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
    • 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)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

Expanded polyvinyl chloride is prepared by mixing together polyvinyl chloride or a vinyl chloride-vinyl ester copolymer in powdered form, a blowing agent liberating nitrogen at an elevated moulding temperature, a volatile plasticizer, and a non-volatile plasticizer, moulding the mixture in a closed mould under pressure by heating at an elevated moulding temperature sufficient to liberate the nitrogen from the blowing agent, cooling and releasing the pressure, and curing and stabilizing by heating at an elevated temperature sufficient to volatilize a major proportion of the plasticizer. Specified vinyl esters are vinyl acetate and butyrate. It is preferred that the powder is fine enough to pass through a 100 mesh screen. Specified blowing agents are diazo-amino-benzene, azo isobutyric dinitrile, dinitroso pentamethylene tetramine, diethyl azoisobutyrate, and 1, 3-bis(xenyl)-triazene. Specified plasticizers are acetone, methyl ethyl ketone, dioxane, mesityl oxide, methyl methacrylate, vinyl acetate and a mixture of naphtha and acetone. Specified non-volatile plasticizers are tricresyl or triphenyl phosphate, dioctyl or ethylhexyl phthalate, dibutyl sebacate and methyl abietate. Other resins that may be present in the final composition either through the addition of monomers or polymers to the mixture before moulding or curing are urea-formaldehyde, alkyd resins, acrylic esters, acrylonitrile-butadiene being specified, styrene and polyester resins. Light or heat stabilizers such as basic lead carbonate or silicate or a barium-sodium organic complex, or the phosphates, lubricants such as stearic acid and zinc stearate, blowing agent accelerators, e.g. phthalic anhydride, surface active agents, emulsifying agents, pigments, dyes, fillers, salicylic acid and a polyester glycol plasticizer may also be present. Specification 429,316, [Group V], is referred to.
GB25593/51A 1950-11-17 1951-11-01 Production of cellular polyvinyl chloride Expired GB714606A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US714606XA 1950-11-17 1950-11-17

Publications (1)

Publication Number Publication Date
GB714606A true GB714606A (en) 1954-09-01

Family

ID=22101465

Family Applications (1)

Application Number Title Priority Date Filing Date
GB25593/51A Expired GB714606A (en) 1950-11-17 1951-11-01 Production of cellular polyvinyl chloride

Country Status (1)

Country Link
GB (1) GB714606A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3017372A (en) * 1958-11-25 1962-01-16 Burroughs Corp Method of making a liquid-filled synthetic resin structure and article obtained therefrom

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3017372A (en) * 1958-11-25 1962-01-16 Burroughs Corp Method of making a liquid-filled synthetic resin structure and article obtained therefrom

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