GB1074573A - Improvements in or relating to cellular material - Google Patents

Improvements in or relating to cellular material

Info

Publication number
GB1074573A
GB1074573A GB47099/62A GB4709962A GB1074573A GB 1074573 A GB1074573 A GB 1074573A GB 47099/62 A GB47099/62 A GB 47099/62A GB 4709962 A GB4709962 A GB 4709962A GB 1074573 A GB1074573 A GB 1074573A
Authority
GB
United Kingdom
Prior art keywords
esters
anhydride
butyl
unsaturated
diisocyanate
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
GB47099/62A
Inventor
Robert Sydney Richard Parker
Percy Taylor
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.)
BTR Industries Ltd
Original Assignee
BTR 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 BTR Industries Ltd filed Critical BTR Industries Ltd
Priority to GB47099/62A priority Critical patent/GB1074573A/en
Publication of GB1074573A publication Critical patent/GB1074573A/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
    • C08J9/0061—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof characterized by the use of several polymeric components
    • 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
    • C08J9/102—Azo-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
    • C08J2201/00—Foams characterised by the foaming process
    • C08J2201/02—Foams characterised by the foaming process characterised by mechanical pre- or post-treatments
    • C08J2201/026—Crosslinking before of after foaming
    • 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
    • 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
    • C08J2457/00—Characterised by the use of unspecified polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds

Landscapes

  • 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)
  • General Chemical & Material Sciences (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

A rigid or semi-rigid cellular material is produced from a mixture comprising a polymer or copolymer of vinyl chloride, a polyisocyanate, a blowing agent, an unsaturated ester and an unsaturated anhydride which is copolymerizable with the other reactants, by heating the mixture in a mould under pressure to form a partially expanded material, cooling the mould under pressure, removing the partially expanded material and finally completing the expansion by heating the material in the presence of water or water vapour. Pressures from 3 to 7 tons per square inch are used. Polyisocyanates specified are p-p1-p11 triisocyanate of triphenyl methane, p-p1-diphenyl methane diisocyanate, toluene 2-4-diisocyanate, toluene 2-6 diisocyanate. Blowing agents, which are used in amounts from 5% to 40% by weight of the initial mixture, mentioned are azodiisobutyrodinitrile, asodiisobutyric amide oxime; azidicarbonamide; p,p1 - oxybis (benzene sulphonyl hydrazide); benzene sulphonyl hydrazine; benzil hydrazones; tertiary butyl-amine; nitrite; N:N1-dinitroso-ethylene urea; N:N1 - dinitroso - N:N1 - dimethylterephthalamide; N:N1 - dinitrosopentamethylene tetramine; urea oxalate; amino-guanidine bicarbonate and nitrourea. Fuorocarbons may also be used. Anhydrides specified are maleic anhydride, itaconic anhydride, acrylic anhydride, citraconic anhydride and mixtures of these. Unsaturated esters are preferably liquid and are used in quantities of 2% to 30% by weight of the initial mixture. Those specified are methyl, n-butyl, isopropyl, n-hexyl and benzyl esters of methacrylic acid; esters of methacrylic acid and diols, triols and polyols such as dimethacrylate esters of ethylene glycol, triethylene glycol, 1:3 propane diol or 1:3 butane diol, penta erythritol and alkyl or aryl esters of unsaturated organic acids such as butyl maleates, fumarates or itaconates; esters of acrylic acid particularly the mono- and di-esters such as the ethyl, butyl, ethylhexyl esters and those formed from ethylene glycol and 1:3 butane diol.
GB47099/62A 1962-12-13 1962-12-13 Improvements in or relating to cellular material Expired GB1074573A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB47099/62A GB1074573A (en) 1962-12-13 1962-12-13 Improvements in or relating to cellular material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB47099/62A GB1074573A (en) 1962-12-13 1962-12-13 Improvements in or relating to cellular material

Publications (1)

Publication Number Publication Date
GB1074573A true GB1074573A (en) 1967-07-05

Family

ID=10443714

Family Applications (1)

Application Number Title Priority Date Filing Date
GB47099/62A Expired GB1074573A (en) 1962-12-13 1962-12-13 Improvements in or relating to cellular material

Country Status (1)

Country Link
GB (1) GB1074573A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4293511A (en) 1977-11-09 1981-10-06 K.R.P. Plastiques Processes and production apparatus for rigid cellular materials comprising polyvinyl chloride

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4293511A (en) 1977-11-09 1981-10-06 K.R.P. Plastiques Processes and production apparatus for rigid cellular materials comprising polyvinyl chloride

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