GB1074531A - Improvements in or relating to cellular material - Google Patents

Improvements in or relating to cellular material

Info

Publication number
GB1074531A
GB1074531A GB151563A GB151563A GB1074531A GB 1074531 A GB1074531 A GB 1074531A GB 151563 A GB151563 A GB 151563A GB 151563 A GB151563 A GB 151563A GB 1074531 A GB1074531 A GB 1074531A
Authority
GB
United Kingdom
Prior art keywords
vinyl
anhydride
isocyanate
mixture
toluene
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
GB151563A
Inventor
Robert Stdney Richard Parker
Percey Tatlor
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 GB151563A priority Critical patent/GB1074531A/en
Publication of GB1074531A publication Critical patent/GB1074531A/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)
  • Polyurethanes Or Polyureas (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, a vinyl monomer (other than a vinyl 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, 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 - di - isobutyrodinitrile, azo - di - isobutyric amide oxime, azodicarbonamide, p,p1 oxybis (benzene sulphonyl hydrazide), benzene sulphonyl hydrazine; benzil hydrazones; tertiary butylamine nitrite; N:N1 - dinitrosoethylene 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 unsaturated 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. Vinyl monomers, used in quantities of 2 to 30% by weight of the initial mixture, may be isobutyl vinyl ether, vinyl toluene, vinyl trichlorosilane, vinyl 2-ethylhexyl ether and vinylidene chloride.
GB151563A 1963-01-14 1963-01-14 Improvements in or relating to cellular material Expired GB1074531A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB151563A GB1074531A (en) 1963-01-14 1963-01-14 Improvements in or relating to cellular material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB151563A GB1074531A (en) 1963-01-14 1963-01-14 Improvements in or relating to cellular material

Publications (1)

Publication Number Publication Date
GB1074531A true GB1074531A (en) 1967-07-05

Family

ID=9723312

Family Applications (1)

Application Number Title Priority Date Filing Date
GB151563A Expired GB1074531A (en) 1963-01-14 1963-01-14 Improvements in or relating to cellular material

Country Status (1)

Country Link
GB (1) GB1074531A (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

Similar Documents

Publication Publication Date Title
Rusch Load–compression behavior of flexible foams
GB1040452A (en) Polyurethane foams
NO962512L (en) New foam mixtures especially for rectal foams and other resulting foams
GB1411646A (en) High stability graf copolymer dispersions in polyols possessing unsaturation and polyurethanes prepared from such products
ES456084A1 (en) Soft ethylenic polymer foams
GB1074531A (en) Improvements in or relating to cellular material
GB803771A (en) Production of cellular synthetic rubbers
US3194854A (en) Process for producing thermoplastic foams
GB1090328A (en)
US2901446A (en) Process for producing rigid expanded polyvinyl chloride
ES272174A1 (en) Cross-linked, rigid, cellular materials and process for their obtention
JPH0768398B2 (en) Method for producing crosslinked plastic foam
GB1074571A (en) Improvements in or relating to cellular material
GB993763A (en) Improvements in rigid cross-linked cellular products based on polyvinylchloride and in methods for manufacturing same
AU3083192A (en) Process and device for disposing of foamed material including blowing agent, especially foams like polyurethane used as insulators in refrigerators
ES292814A1 (en) Processes for the manufacture of cellular products
GB1074573A (en) Improvements in or relating to cellular material
US3277028A (en) Rigid or semi-rigid cellular materials
JPS5667330A (en) Production of soft polyurethane foam
JPS5571727A (en) Foamable vinyl chloride resin composition
GB997318A (en) Improvements in or relating to cellular material
US4358548A (en) Cellular forming agent in resinous systems and resulting products
JPH0639936A (en) Composite material and manufacture thereof
FR2088648A5 (en) Foamable (co) polyvinyl chloride blends with - as foaming aid
FR2103528A1 (en) Esterified polyethers polyols - for polyurethane foams