GB1074571A - Improvements in or relating to cellular material - Google Patents

Improvements in or relating to cellular material

Info

Publication number
GB1074571A
GB1074571A GB4606262A GB4606262A GB1074571A GB 1074571 A GB1074571 A GB 1074571A GB 4606262 A GB4606262 A GB 4606262A GB 4606262 A GB4606262 A GB 4606262A GB 1074571 A GB1074571 A GB 1074571A
Authority
GB
United Kingdom
Prior art keywords
anhydride
isocyanate
mixture
weight
specified
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
GB4606262A
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 GB4606262A priority Critical patent/GB1074571A/en
Publication of GB1074571A publication Critical patent/GB1074571A/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
    • 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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

A rigid or semi-rigid cellular material is produced from a mixture comprising a polymer or copolymer or vinyl chloride, a polyisocyanate, a blowing agent, an unsaturated anhydride and an alkene (other than a vinyl monomer) or cycloalkene by heating the mixture in a mould under pressure to form a partially expanded material, cooling the mould under pressure, e.g. 3 to 7 tons per square inch, removing the partially expanded material and finally completing the expansion by heating the material in the presence of water or water vapour. Polyisocyanates specified are p-p1-p11 tri-isocyanate of triphenyl methane, p-p1-diphenyl methane diisocyanate, toluene 2-4 di-isocyanate and toluene 2-6 di-isocyanate. Blowing agents which are used in amounts from 0.5 to 20% by weight of the initial mixture, mentioned are azo - diisobutyrodinitrile, azo - di - isobutyric amide oxime, azodicarbonamide, p,p1-oxybis (benzene sulphonyl hydrazide), benzene sulphonyl hydrazine; benzil hydrazones; tertiary butylamine nitrite; N:N1 - dinitroso - ethylene urea; N:N1 - dinitroso - N:N1 -dimethylterephthalamide; N:N1 - dinitrosopentamethylene tetramine; urea oxalate aminoguanidine bicarbonate and nitro urea. Fluoro carbons may also be used. The unsaturate anhydrides which must be capable of copolymerizing with the other components, are used in quantities of 5-40% by weight of the initial mixture. Anhydrides specified are maleic anhydride, itaconic anhydride, acrylic anhydride, citraconic anhydride and mixtures of these. Specified unsaturated hydrocarbon monomers, used in quantities of 2-30% by weight of the initial mixture are piperylene, cyclopentadiene, dipentene, pinene, menthadiene, camphene and cyclohexene.
GB4606262A 1962-12-06 1962-12-06 Improvements in or relating to cellular material Expired GB1074571A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4606262A GB1074571A (en) 1962-12-06 1962-12-06 Improvements in or relating to cellular material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4606262A GB1074571A (en) 1962-12-06 1962-12-06 Improvements in or relating to cellular material

Publications (1)

Publication Number Publication Date
GB1074571A true GB1074571A (en) 1967-07-05

Family

ID=10439697

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4606262A Expired GB1074571A (en) 1962-12-06 1962-12-06 Improvements in or relating to cellular material

Country Status (1)

Country Link
GB (1) GB1074571A (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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