GB1156783A - Improvements in or relating to the Manufacture of Polyurethanes. - Google Patents

Improvements in or relating to the Manufacture of Polyurethanes.

Info

Publication number
GB1156783A
GB1156783A GB3270965A GB3270965A GB1156783A GB 1156783 A GB1156783 A GB 1156783A GB 3270965 A GB3270965 A GB 3270965A GB 3270965 A GB3270965 A GB 3270965A GB 1156783 A GB1156783 A GB 1156783A
Authority
GB
United Kingdom
Prior art keywords
cellulose
dimethylpolysiloxane
finely divided
divided solid
july
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
GB3270965A
Inventor
William Graham Carroll
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries 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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB3270965A priority Critical patent/GB1156783A/en
Priority to NL6610716A priority patent/NL6610716A/xx
Publication of GB1156783A publication Critical patent/GB1156783A/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
    • C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
    • 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
    • C08J2375/06—Polyurethanes from 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
    • C08J2483/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen, or carbon only; Derivatives of such polymers

Abstract

1,156,783. Polyurethane foams. IMPERIAL CHEMICAL INDUSTRIES Ltd. 12 July, 1966 [30 July, 1965], No. 32709/65. Headings C3C and C3R. Polyurethane foams having an irregular pore structure resembling natural sponge are prepared by reacting an organic polyisocyanate with an hydroxyl group containing polyester and water in the presence of 0À001% to 0À03% weight of the polyester of a dimethylpolysiloxane fluid having a viscosity of at least 5,000 centistokes at 25‹ C. and a finely divided solid having a particle size not exceeding 30 microns in an amount less than that of the dimethylpolysiloxane. Aliphatic, cycloaliphatic and aromatic diisocyanates may be used as may triisocyanates, reaction products of an excess of a diisocyanate with a polyhydric alcohol, uretidione dimers and isocyanurate polymers of diisocyanates and the polyisocyanate compositions obtained by the phosgenation of the mixed polyamine reaction products of formaldehyde and aromatic amines. Conventional polyesters prepared by reacting dicarboxylic acids with polyhydric alcohols if desired in the presence of diamines or aminoalcohols may be used. The finely divided solid may be silica, chalk, talc, asbestine, diatomaceous earths, clays, carbon black, zinc oxide, polystyrene, polyvinyl acetate, ethyl cellulose, cellulose acetate/butyrate. benzyl cellulose, ethyl hydroxyethyl cellulose and methyl hydroxypropyl cellulose. Silica aerogets are preferred. The dimethylpolysiloxane is suitably coated upon the finely divided solid. Additional blowing agents such as inert low-boiling-point liquids, catalysts such as tertiary amines and organic compound of tin, iron, manganese and lead, surface active agents such as oxyethylated alkyl phenols and sulphated long chain compounds and flame retardants such as tris-2-chloroethylphosphate and tris-2,3- dibromopropyl phosphate may also be added to the reaction mixture.
GB3270965A 1965-07-30 1965-07-30 Improvements in or relating to the Manufacture of Polyurethanes. Expired GB1156783A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB3270965A GB1156783A (en) 1965-07-30 1965-07-30 Improvements in or relating to the Manufacture of Polyurethanes.
NL6610716A NL6610716A (en) 1965-07-30 1966-07-29

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3270965A GB1156783A (en) 1965-07-30 1965-07-30 Improvements in or relating to the Manufacture of Polyurethanes.

Publications (1)

Publication Number Publication Date
GB1156783A true GB1156783A (en) 1969-07-02

Family

ID=10342842

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3270965A Expired GB1156783A (en) 1965-07-30 1965-07-30 Improvements in or relating to the Manufacture of Polyurethanes.

Country Status (2)

Country Link
GB (1) GB1156783A (en)
NL (1) NL6610716A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3926866A (en) * 1973-06-06 1975-12-16 Toyoda Chuo Kenkyusho Kk Process for production of rigid polyurethane foam and product for use as energy absorbing material
US4554295A (en) * 1983-07-13 1985-11-19 Eastern Foam Products, Inc. Method for preparing flexible polyurethane foams from polymer/polyols and improved polyurethane foam product
EP0802944A1 (en) * 1994-06-28 1997-10-29 Ppg Industries, Inc. Surfactants for incorporating silica aerogel in polyurethane foams

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4404701A1 (en) * 1994-02-15 1995-08-17 Hoechst Ag Composite foams, processes for their production and their use

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3926866A (en) * 1973-06-06 1975-12-16 Toyoda Chuo Kenkyusho Kk Process for production of rigid polyurethane foam and product for use as energy absorbing material
US4554295A (en) * 1983-07-13 1985-11-19 Eastern Foam Products, Inc. Method for preparing flexible polyurethane foams from polymer/polyols and improved polyurethane foam product
EP0802944A1 (en) * 1994-06-28 1997-10-29 Ppg Industries, Inc. Surfactants for incorporating silica aerogel in polyurethane foams
EP0802944A4 (en) * 1994-06-28 1998-05-06 Ppg Industries Inc Surfactants for incorporating silica aerogel in polyurethane foams

Also Published As

Publication number Publication date
NL6610716A (en) 1967-01-31

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees