GB876977A - Polyurethane foam - Google Patents

Polyurethane foam

Info

Publication number
GB876977A
GB876977A GB17476/59A GB1747659A GB876977A GB 876977 A GB876977 A GB 876977A GB 17476/59 A GB17476/59 A GB 17476/59A GB 1747659 A GB1747659 A GB 1747659A GB 876977 A GB876977 A GB 876977A
Authority
GB
United Kingdom
Prior art keywords
parts
blowing agent
natural rubber
produce
isocyanate
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
GB17476/59A
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.)
Lockheed Martin Corp
Original Assignee
Lockheed Aircraft Corp
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 Lockheed Aircraft Corp filed Critical Lockheed Aircraft Corp
Publication of GB876977A publication Critical patent/GB876977A/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
    • C08J9/12—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 physical blowing agent
    • C08J9/14—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 physical blowing agent organic
    • C08J9/142—Compounds containing oxygen but no halogen atom
    • 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
    • C08J9/12—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 physical blowing agent
    • C08J9/14—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 physical blowing agent organic
    • C08J9/143—Halogen containing 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
    • C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
    • C08J2375/04—Polyurethanes

Abstract

20 to 150 parts of an arylene polyisocyanate, 100 parts of a synthetic resin reactive therewith, and 1-60 parts of a substantially inert volatile blowing agent, and water if desired, are reacted at a temperature which vaporizes the blowing agent to produce a foamed polyurethane. Resins specified are alkyds, a number being exemplified, and lists of suitable polyisocyanates and blowing agents are given, the latter being limited to aliphatic hydrocarbons, di-alkyl ethers and mixed halogenated hydrocarbons containing fluorine of B.Pt. below 75 DEG C. and must not produce foam shrinkage. One or more high molecular weight thermoplastic polymers soluble in the isocyanate, e.g. ethyl or benzyl cellulose, chlorinated natural rubber, natural rubber, or polyvinyl chloride may also be included.ALSO:20 to 150 parts of an arylene polyisocyanate, 100 parts of a synthetic resin reactive therewith, and 1 to 60 parts of a substantially inert volatile blowing agent, and water if desired, are reacted at a temperature which vaporizes the blowing agent to produce a foamed polyurethane. Resins specified are aklkyds-a number being exemplified-and lists of suitable polyisocyanates and blowing agents are given the latter being limited to aliphatic hydrocarbons, di alkyl ethers and mixed halogenated hydrocarbons containing fluorine of B. Pt. below 75 DEG C. and must not produce high foam shrinkage. The blowing agent may be added to either the resin or the isocyanate prior to or during mixing of the ingredients. One or more high molecular weight thermoplastic polymers soluble in the isocyanate e.g. ethyl or benzyl cellulose, chlorinated natural rubber, natural rubber, or polyvinyl chloride may also be included.
GB17476/59A 1958-10-30 1959-05-22 Polyurethane foam Expired GB876977A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US876977XA 1958-10-30 1958-10-30

Publications (1)

Publication Number Publication Date
GB876977A true GB876977A (en) 1961-09-06

Family

ID=22206731

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17476/59A Expired GB876977A (en) 1958-10-30 1959-05-22 Polyurethane foam

Country Status (1)

Country Link
GB (1) GB876977A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3188296A (en) * 1951-12-24 1965-06-08 Bayer Ag Process for preparing polyurethane plastics
DE1237776B (en) * 1965-03-12 1967-03-30 Henkel & Cie Gmbh Process for the production of foams containing urethane groups
EP0000917A1 (en) * 1977-08-27 1979-03-07 Bayer Ag Use of 1,1,1,-trifluoro-2-chloroethane as a blowing agent for the preparation of foamed plastics
JPH0291132A (en) * 1988-09-28 1990-03-30 Mitsui Toatsu Chem Inc Preparation of rigid polyurethane foam
DE3933705C1 (en) * 1989-04-24 1990-12-13 Hans Wilhelm 4060 Viersen De Huetzen
GB2237024A (en) * 1989-10-18 1991-04-24 British Vita Flexible polyurethane foam
EP0394769B1 (en) * 1989-04-24 1998-01-07 Hans Wilhelm Hützen Process for the preparation of a halocarbon-free polyurethane insulating foam

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3188296A (en) * 1951-12-24 1965-06-08 Bayer Ag Process for preparing polyurethane plastics
DE1237776B (en) * 1965-03-12 1967-03-30 Henkel & Cie Gmbh Process for the production of foams containing urethane groups
EP0000917A1 (en) * 1977-08-27 1979-03-07 Bayer Ag Use of 1,1,1,-trifluoro-2-chloroethane as a blowing agent for the preparation of foamed plastics
JPH0291132A (en) * 1988-09-28 1990-03-30 Mitsui Toatsu Chem Inc Preparation of rigid polyurethane foam
JP2735102B2 (en) 1988-09-28 1998-04-02 三井東圧化学株式会社 Method for producing rigid polyurethane foam
DE3933705C1 (en) * 1989-04-24 1990-12-13 Hans Wilhelm 4060 Viersen De Huetzen
EP0394769B1 (en) * 1989-04-24 1998-01-07 Hans Wilhelm Hützen Process for the preparation of a halocarbon-free polyurethane insulating foam
GB2237024A (en) * 1989-10-18 1991-04-24 British Vita Flexible polyurethane foam

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