GB886363A - A process for the production of plastic foamed material mouldings from plastic mixtures containing expanding agents - Google Patents

A process for the production of plastic foamed material mouldings from plastic mixtures containing expanding agents

Info

Publication number
GB886363A
GB886363A GB4288159A GB4288159A GB886363A GB 886363 A GB886363 A GB 886363A GB 4288159 A GB4288159 A GB 4288159A GB 4288159 A GB4288159 A GB 4288159A GB 886363 A GB886363 A GB 886363A
Authority
GB
United Kingdom
Prior art keywords
mould
expanders
polyvinyl chloride
softeners
phthalate
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
GB4288159A
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.)
Huels AG
Original Assignee
Chemische Werke Huels AG
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 Chemische Werke Huels AG filed Critical Chemische Werke Huels AG
Publication of GB886363A publication Critical patent/GB886363A/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
    • 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)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

A polyvinyl chloride mixture containing a softener and an expander and which is able to remain sufficiently liquid to absorb the air in the mould cavity is placed in a mould to fill 10% to 60% of its volume and the mixture foamed up in a one stage process, with the mould closed so that a pressure below 10 atmospheres is set up, and gelatinized at this pressure and at an elevated temperature. Gelatinization is retarded by using softeners which gelatinize at higher temperatures than di-octyl phthalate and/or by using a high temperature gelatinizing polyvinyl chloride and/or by using expanders having different decomposition points or ranges. Suitable softeners are di-monyl- and di iso decyl-phthalate and polymers of butadiene-acrylonitrile and adipic acid polyester; retarders are octyl stearate and dibenzyl toluene, whilst expanders are ammonium carbonate and bicarbonate, and sulph hydrazides.ALSO:A polyvinyl chloride mixture containing a softener and an expander and which is able to remain sufficiently liquid to absorb the air in the mould cavity is placed in a mould to fill 10% to 60% of its volume and the mixture foamed up in a one stage process, with the mould closed so that a pressure below 10 atmospheres is set up, and gelatinized at this pressure and at an elevated temperature. Gelatinization is retarded by using softeners which gelatinize at higher temperatures than dioctyl phthalate and/or by using a high temperature gelatinizing polyvinyl chloride and/or by using expanders having different decomposition points or ranges. Suitable softeners are dinonyl- and diisodecyl phthalate and polymers of butadiene-acrylonitrile, and adipic acid polyester; retarders are octyl stearate and dibenzyl toluene whilst expanders are ammonium carbonate and bicarbonate, and sulph hydrazides.
GB4288159A 1959-05-22 1959-12-17 A process for the production of plastic foamed material mouldings from plastic mixtures containing expanding agents Expired GB886363A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEC19041A DE1164649B (en) 1959-05-22 1959-05-22 Process for the production of dimensionally stable molded parts from polyvinyl chloride foam

Publications (1)

Publication Number Publication Date
GB886363A true GB886363A (en) 1962-01-03

Family

ID=7016547

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4288159A Expired GB886363A (en) 1959-05-22 1959-12-17 A process for the production of plastic foamed material mouldings from plastic mixtures containing expanding agents

Country Status (5)

Country Link
BE (1) BE591074A (en)
DE (1) DE1164649B (en)
FR (1) FR1242599A (en)
GB (1) GB886363A (en)
NL (1) NL251745A (en)

Also Published As

Publication number Publication date
DE1164649B (en) 1964-03-05
NL251745A (en)
BE591074A (en)
FR1242599A (en) 1960-09-30

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