GB1308637A - Process for the production of foams - Google Patents

Process for the production of foams

Info

Publication number
GB1308637A
GB1308637A GB3138070A GB3138070A GB1308637A GB 1308637 A GB1308637 A GB 1308637A GB 3138070 A GB3138070 A GB 3138070A GB 3138070 A GB3138070 A GB 3138070A GB 1308637 A GB1308637 A GB 1308637A
Authority
GB
United Kingdom
Prior art keywords
reaction
mould
temperature
hydrogen atoms
compounds
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
GB3138070A
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.)
Bayer AG
Original Assignee
Bayer 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 Bayer AG filed Critical Bayer AG
Publication of GB1308637A publication Critical patent/GB1308637A/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
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40—High-molecular-weight compounds
    • C08G18/63—Block or graft polymers obtained by polymerising compounds having carbon-to-carbon double bonds on to polymers
    • C08G18/637—Block or graft polymers obtained by polymerising compounds having carbon-to-carbon double bonds on to polymers characterised by the in situ polymerisation of the compounds having carbon-to-carbon double bonds in a reaction mixture of saturated polymers and isocyanates
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/67—Unsaturated compounds having active hydrogen
    • C08G18/671—Unsaturated compounds having only one group containing active hydrogen
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/67—Unsaturated compounds having active hydrogen
    • C08G18/68—Unsaturated polyesters
    • 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
    • C08J9/34—Chemical features in the manufacture of articles consisting of a foamed macromolecular core and a macromolecular surface layer having a higher density than the core
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2110/00—Foam properties
    • C08G2110/0033—Foam properties having integral skins
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2110/00—Foam properties
    • C08G2110/0041—Foam properties having specified density
    • C08G2110/0066—≥ 150kg/m3
    • 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
    • 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)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Polyurethanes Or Polyureas (AREA)

Abstract

1308637 Moulding foam resin compositions BAYER AG 29 June 1970 [23 July 1969] 31380/70 Heading B5A [Also in Division C3] Foams are prepared by foaming a reaction mixture comprising a compound which contains at least two hydrogen atoms that are reactive with isocyanate groups, a polyisocyanate, at least one compound which contains one or more olefinic double bonds and which may also contain hydrogen atoms which are reactive with isocyanate groups, a blowing agent,- activators for the NCO/active H reaction and for the addition polymerization reaction and optionally a foam stabilizer, the foaming occurring with simultaneous polymerization and polyaddition and the reaction being carried out in a closed mould, the capacity of which is from 1/10 to 9/10 of the volume which the foamed product would take up if expanded in an open mould, the temperature of the internal surface of the mould being at least 20‹ C. below the maximum temperature occurring within the reaction mass during the reaction. Suitably, the compounds containing reactive hydrogen atoms are polyethers or polyesters. Polyisocyanates used conventionally in the manufacture of polyurethane foams are suitable. Particularly suitable olefinic monomers are styrene and acrylonitrile, acrylic acid, methacrylic acid and derivatives thereof also being suitable. Activators for the NCO active H reaction are suitably tertiary amines or organotin compounds. The polymerization catalyst may be peroxidic compounds or nitrogen compounds such as azodiisobutyronitrile or esters of azodiisobutyric acid. The mould is preferably made of metal and the temperature of its surface may be kept constant using air, water or an oil. The temperature of the mould may be kept at room temperature or the mould may be preheated.
GB3138070A 1969-07-23 1970-06-29 Process for the production of foams Expired GB1308637A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691937362 DE1937362A1 (en) 1969-07-23 1969-07-23 Process for the production of foams

Publications (1)

Publication Number Publication Date
GB1308637A true GB1308637A (en) 1973-02-21

Family

ID=5740617

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3138070A Expired GB1308637A (en) 1969-07-23 1970-06-29 Process for the production of foams

Country Status (6)

Country Link
AT (1) AT298814B (en)
BE (1) BE753797A (en)
DE (1) DE1937362A1 (en)
FR (1) FR2055557A5 (en)
GB (1) GB1308637A (en)
NL (1) NL7010722A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4038350A (en) * 1974-01-10 1977-07-26 Imperial Chemical Industries Limited Method of producing integral non-foamed skin layer shaped articles
US4098733A (en) 1975-07-02 1978-07-04 The Dow Chemical Company Composites of polyurethanes and vinyl polymers
US4125487A (en) * 1977-05-23 1978-11-14 The Dow Chemical Company Non-cellular and cellular composites of polyurethanes and vinyl polymers
WO2013019488A1 (en) * 2011-07-29 2013-02-07 Air Products And Chemicals, Inc. Reduced emissions low density spray polyurethane foam
CN110023365A (en) * 2016-12-05 2019-07-16 科思创德国股份有限公司 Acrylate and acrylamide are used to reduce the purposes of the discharge of polyurethane foam

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2349609A1 (en) * 1976-04-27 1977-11-25 Texaco Development Corp Polyether isocyanate prepolymers contg. dispersed polymer - prepd. by polymerising an unsaturated monomer in an isocyanate terminated polyether isocyanate compsn.
GB9127206D0 (en) * 1991-12-21 1992-02-19 Ciba Geigy Ag Polymeric materials

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4038350A (en) * 1974-01-10 1977-07-26 Imperial Chemical Industries Limited Method of producing integral non-foamed skin layer shaped articles
US4098733A (en) 1975-07-02 1978-07-04 The Dow Chemical Company Composites of polyurethanes and vinyl polymers
US4125487A (en) * 1977-05-23 1978-11-14 The Dow Chemical Company Non-cellular and cellular composites of polyurethanes and vinyl polymers
WO2013019488A1 (en) * 2011-07-29 2013-02-07 Air Products And Chemicals, Inc. Reduced emissions low density spray polyurethane foam
RU2572626C2 (en) * 2011-07-29 2016-01-20 Эр Продактс Энд Кемикалз, Инк. Foam polyurethane composition, method of producing foam polyurethane and catalyst composition used therefor
US10106638B2 (en) 2011-07-29 2018-10-23 Evonik Degussa Gmbh Reduced emissions low density spray polyurethane foam
CN110023365A (en) * 2016-12-05 2019-07-16 科思创德国股份有限公司 Acrylate and acrylamide are used to reduce the purposes of the discharge of polyurethane foam

Also Published As

Publication number Publication date
BE753797A (en) 1970-12-31
FR2055557A5 (en) 1971-05-07
DE1937362A1 (en) 1971-02-04
AT298814B (en) 1972-05-25
NL7010722A (en) 1971-01-26

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee