ES309486A1 - Improvements in or relating to the manufacture of foamed polyurethanes - Google Patents

Improvements in or relating to the manufacture of foamed polyurethanes

Info

Publication number
ES309486A1
ES309486A1 ES0309486A ES309486A ES309486A1 ES 309486 A1 ES309486 A1 ES 309486A1 ES 0309486 A ES0309486 A ES 0309486A ES 309486 A ES309486 A ES 309486A ES 309486 A1 ES309486 A1 ES 309486A1
Authority
ES
Spain
Prior art keywords
mixture
polyether
water
produce
low boiling
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
ES0309486A
Other languages
Spanish (es)
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.)
CAV Ltd
Original Assignee
CAV 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 CAV Ltd filed Critical CAV Ltd
Publication of ES309486A1 publication Critical patent/ES309486A1/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
    • C08J9/143—Halogen containing compounds
    • 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
    • C08G18/48—Polyethers
    • C08G18/4804—Two or more polyethers of different physical or chemical nature
    • 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
    • C08G18/48—Polyethers
    • C08G18/4829—Polyethers containing at least three hydroxy groups
    • 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
    • C08G2110/0008—Foam properties flexible
    • 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
    • C08G2110/005—< 50kg/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
    • C08J2375/08—Polyurethanes from polyethers

Abstract

Foamed polyurethanes are produced by reacting an organic polyisocyanate with a polyether or mixture of polyethers containing 3 -OH groups per molecule and water in the presence of a low boiling liquid said polyether or mixture of polyethers having an OH value of 70-170 mg. KOH/g. and the amount of polyisocyanate being between 90 and 100% of that which is stoichiometrically equivalent to the polyether, water and any other active hydrogen containing materials present in the mixture and the low boiling liquid being used in sufficient amount to produce a foam requiring an indentation load not greater than 25 lbs. per 50 sq. inches to produce a 25% deflection. In an Example (1) tolylene diisocyanate was added to a mixture of oxypropylated hexane triol, stannous octoate, monofluorotrichloromethane, triethylene diamine, siloxane and water and the mixture allowed to foam in a mould.
ES0309486A 1964-10-02 1965-02-10 Improvements in or relating to the manufacture of foamed polyurethanes Expired ES309486A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB40149/64A GB1079105A (en) 1964-10-02 1964-10-02 Improvements in or relating to the manufacture of foamed polyurethanes

Publications (1)

Publication Number Publication Date
ES309486A1 true ES309486A1 (en) 1965-12-16

Family

ID=10413422

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0309486A Expired ES309486A1 (en) 1964-10-02 1965-02-10 Improvements in or relating to the manufacture of foamed polyurethanes

Country Status (3)

Country Link
BE (1) BE670426A (en)
ES (1) ES309486A1 (en)
GB (1) GB1079105A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4203918A1 (en) * 1992-02-11 1993-08-12 Basf Ag METHOD FOR THE PRODUCTION OF FLUOROCHLORINE-HYDROGEN-FREE POLYURETHANE SOFT FOAMS USING POLYISOCYANATE MIXTURES ON DIPHENYLMETHANE DIISOCYANIZATE POLYISOCYANIZED ASYANIZED ASYANIZED ASYANIZED ASYANATE BASE
DE4205934A1 (en) * 1992-02-27 1993-09-02 Basf Ag METHOD FOR PRODUCING FLUOROCHLORINE HYDROCARBON-FREE, LOW-DENSITY POLYURETHANE SOFT FOAMS AND SOFT-ELASTIC POLYURETHANE FOAMS, AND USEFUL THEREOF, WITH URETIFYMETHANE DYPE, WITH POLYURETHANE
DE4411781A1 (en) * 1994-04-06 1995-10-12 Basf Ag Process for the preparation of chlorofluorocarbons-free, highly elastic flexible polyurethane foams and usable polyisocyanate mixtures based on diphenylmethane diisocyanate and modified with urethane groups
DE10111823A1 (en) 2001-03-13 2002-09-26 Basf Ag Preparation of soft polyurethane foam, useful e.g. in mattresses and furniture, using block polyoxypropylene-polyoxyethylene polyol with specific hydroxy number

Also Published As

Publication number Publication date
BE670426A (en)
GB1079105A (en) 1967-08-16

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