GB1246732A - Modified polyurethane foams and method of preparation thereof - Google Patents

Modified polyurethane foams and method of preparation thereof

Info

Publication number
GB1246732A
GB1246732A GB20473/69A GB2047369A GB1246732A GB 1246732 A GB1246732 A GB 1246732A GB 20473/69 A GB20473/69 A GB 20473/69A GB 2047369 A GB2047369 A GB 2047369A GB 1246732 A GB1246732 A GB 1246732A
Authority
GB
United Kingdom
Prior art keywords
anhydride
polyol
adduct
prepared
component
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
GB20473/69A
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.)
Standard Oil Co
Original Assignee
Standard Oil 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 Standard Oil Co filed Critical Standard Oil Co
Publication of GB1246732A publication Critical patent/GB1246732A/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
    • C08J9/0014—Use of organic additives
    • C08J9/0038—Use of organic additives containing phosphorus
    • 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
    • C08G18/30—Low-molecular-weight compounds
    • C08G18/34—Carboxylic acids; Esters thereof with monohydroxyl 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
    • C08G18/4887—Polyethers containing carboxylic ester groups derived from carboxylic acids other than acids of higher fatty oils or other than resin acids
    • 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
    • C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
    • C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
    • C08G18/6633—Compounds of group C08G18/42
    • C08G18/6659—Compounds of group C08G18/42 with compounds of group C08G18/34
    • 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
    • C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72—Polyisocyanates or polyisothiocyanates
    • C08G18/80—Masked polyisocyanates
    • C08G18/8003—Masked polyisocyanates masked with compounds having at least two groups containing active hydrogen
    • C08G18/8048—Masked polyisocyanates masked with compounds having at least two groups containing active hydrogen with compounds of C08G18/34
    • 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
    • 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

1,246,732. Polyurethane foams. STANDARD OIL CO. 22 April, 1969 [23 April, 1968], No. 20473/69. Headings C3C and C3R. Polyurethane foams are prepared by reacting in the presence of a substance capable of producing a gas within the reaction mixture, (1) a polyfunctional aromatic compound having at least two carbpnyl groups each attached to an aromatic nucleus, each carbonyl group being present as part of a carboxylic acid anhydride, carboxyl or acid halide group, (2) a liquid polyarylpolyisocyanate containing at least two interconnected aromatic rings and at least one isocyanate group per aromatic ring in an equivalent weight ratio of (2) to (1) of 0À6 1 to 4À0 : 1, and (3) a polyol component comprising a polyol adduct of M.W. less than 2000 and having at least 3 hydroxyl groups (including carboxylic hydroxyl groups) per molecule in an equivalent weight ratio of (3) to (1) plus (2) of 0À1 : 1 to 3À0 : 1, the polyol adduct being a half-ester reaction adduct of (a) a polyether polyol and (b) an anhydride of a polyfunctional carboxylic acid, from 5 to 40 weight per cent of the adduct being derived from the anhydride. The preferred polyfunctional aromatic compound (1) is trimellitic anhydride but other compounds, e.g. benzophenone tetracarboxylic acid di-anhydride and glycerol tris(4-trimellitate) may be used. Polymethylene polyphenylisocyanates having an average of 2À1 to 3À5 benzene rings per molecule are preferred polyisocyanates. The polyol component (3) is most suitably prepared from a sucrose-, sorbitol-, alpha-methylglucoside- or pentaerythritol-based polyether and tetrabromophthalic-, tetrachlorophthalic- or chlorendic-anhydride optionally in the presence of a polyethylene glycol. The foam may be prepared by the "one-shot" process or by reacting component (1) with component (2) to form a precursor which is reacted with the polyol component (3). Conventional blowing agents, catalyst, surfactants and flame-retarding agents may be incorporated in the reaction mixture. Half-ester adducts are described being prepared from propoxylated sucrose, pentaerythritol, trimethylolpropane, α-methyl glucoside or sorbitol, optionally mixed with a polyethylene glycol of low molecular weight and tetrabromophthalic anhydride, tetrachlorophthalic anhydride, maleic anhydride, phthalic anhydride, trimellitic anhydride and chlorendic anhydride.
GB20473/69A 1968-04-23 1969-04-22 Modified polyurethane foams and method of preparation thereof Expired GB1246732A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US72359368A 1968-04-23 1968-04-23

Publications (1)

Publication Number Publication Date
GB1246732A true GB1246732A (en) 1971-09-15

Family

ID=24906902

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20473/69A Expired GB1246732A (en) 1968-04-23 1969-04-22 Modified polyurethane foams and method of preparation thereof

Country Status (5)

Country Link
BE (1) BE731964A (en)
DE (1) DE1920731A1 (en)
FR (1) FR2006782A1 (en)
GB (1) GB1246732A (en)
NL (1) NL6906244A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA939450A (en) * 1971-03-01 1974-01-01 Ppg Industries, Inc. Urethane foams with reduced smoke levels and improved flame spread

Also Published As

Publication number Publication date
BE731964A (en) 1969-10-01
NL6906244A (en) 1969-10-27
FR2006782A1 (en) 1970-01-02
DE1920731A1 (en) 1969-11-06

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