GB1351555A - Polyurethane foams - Google Patents

Polyurethane foams

Info

Publication number
GB1351555A
GB1351555A GB4120172A GB1351555DA GB1351555A GB 1351555 A GB1351555 A GB 1351555A GB 4120172 A GB4120172 A GB 4120172A GB 1351555D A GB1351555D A GB 1351555DA GB 1351555 A GB1351555 A GB 1351555A
Authority
GB
United Kingdom
Prior art keywords
alkyl
polyurethane foams
hydrogen
aldehyde
bromine
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
GB4120172A
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.)
Dow Chemical Co
Original Assignee
Dow Chemical Co
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 Dow Chemical Co filed Critical Dow Chemical Co
Publication of GB1351555A publication Critical patent/GB1351555A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C08G18/54—Polycondensates of aldehydes
    • C08G18/542—Polycondensates of aldehydes with phenols
    • 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
    • C08G18/83—Chemically modified polymers
    • C08G18/84—Chemically modified polymers by aldehydes
    • 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
    • C08G2110/0016—Foam properties semi-rigid
    • 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
    • C08G2110/0025—Foam properties rigid

Landscapes

  • Chemical & Material Sciences (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)

Abstract

1351555 Polyurethane foams DOW CHEMICAL CO 5 Sept 1972 41201/72 Heading C3R Polyurethane foams are prepared from a reaction mixture comprising an organic polyisocyanate, a polyol containing aromatic hydroxyl groups and an aldehyde or a compound capable of releasing formaldehyde. The polyols are most suitably those of the formula wherein R is hydrogen or C 1 -C 3 alkyl, X is hydrogen, hydroxyl, chlorine, bromine or C 1 -C 12 alkyl, n is 1 or 2 and m has an average value of 0À1 to 4, those of the formula wherein R is a C 1 -C 8 alkylidene radical, -S-, -S-S-, -SO-, -SO 2 -, -CO- and each X is independently hydrogen, C 1 -C 12 alkyl, chlorine or bromine or diphenyl ether resins which are the reaction products of a chloromethylated diphenyl ether and a phenol. The aldehyde or compound capable of releasing formaldehyde may be trioxane, paraformaldehyde, hexamethylene tetramine, tris- (hydroxymethyl) nitromethane, acetaldehyde, propionaldehyde, butyraldehyde, glyoxal, furfural, benzaldehyde and hydroxybenzaldehyde. The foams have improved resistance to thermal degradation.
GB4120172A 1972-09-05 1972-09-05 Polyurethane foams Expired GB1351555A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4120172 1972-09-05

Publications (1)

Publication Number Publication Date
GB1351555A true GB1351555A (en) 1974-05-01

Family

ID=10418587

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4120172A Expired GB1351555A (en) 1972-09-05 1972-09-05 Polyurethane foams

Country Status (1)

Country Link
GB (1) GB1351555A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0067426A1 (en) * 1981-06-15 1982-12-22 Mobay Corporation Production of construction board by the use of an isocyanate-aldehyde binder
EP0351231A1 (en) * 1988-07-15 1990-01-17 Imperial Chemical Industries Plc Method for the preparation of polymeric foams
WO2012004229A1 (en) * 2010-07-08 2012-01-12 Basf Se Rigid polyurethane foam

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0067426A1 (en) * 1981-06-15 1982-12-22 Mobay Corporation Production of construction board by the use of an isocyanate-aldehyde binder
EP0351231A1 (en) * 1988-07-15 1990-01-17 Imperial Chemical Industries Plc Method for the preparation of polymeric foams
WO2012004229A1 (en) * 2010-07-08 2012-01-12 Basf Se Rigid polyurethane foam
CN103119076A (en) * 2010-07-08 2013-05-22 巴斯夫欧洲公司 Rigid polyurethane foam

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Legal Events

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