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
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
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
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.
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)
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)
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 |
-
1965
- 1965-07-30 GB GB3270965A patent/GB1156783A/en not_active Expired
-
1966
- 1966-07-29 NL NL6610716A patent/NL6610716A/xx unknown
Cited By (4)
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 |