GB850664A - Improvements in or relating to the manufacture of cellular polymeric materials - Google Patents
Improvements in or relating to the manufacture of cellular polymeric materialsInfo
- Publication number
- GB850664A GB850664A GB3611757A GB3611757A GB850664A GB 850664 A GB850664 A GB 850664A GB 3611757 A GB3611757 A GB 3611757A GB 3611757 A GB3611757 A GB 3611757A GB 850664 A GB850664 A GB 850664A
- Authority
- GB
- United Kingdom
- Prior art keywords
- stage
- polyisocyanate
- reacting
- acting
- active agents
- 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
- C08G18/64—Macromolecular compounds not provided for by groups C08G18/42 - C08G18/63
- C08G18/6484—Polysaccharides and derivatives thereof
-
- 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
-
- 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
- C08J2401/00—Characterised by the use of cellulose, modified cellulose or cellulose derivatives
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)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
Polyurethane foams are obtained by reacting, in a first stage, a polyisocyanate and a hydroxyended polyether, adding, in a second stage, water and a basic catalyst, this second stage being performed in the presence of a polymeric substance containing groups reactive with organic isocyanate and acting as a foam stabilizer. Suitable reactants are given, the catalyst being tertiary amines, and the stabilizers including cellulose caprate and ethyl cellulose. Other additions are organo polysiloxanes and surface active agents containing sulphonic acid and/or sulphate ester groups. Specification 842,734 is referred to.ALSO:Cellular polyurethanes are obtained by reacting, in a first stage, a polyisocyanate and a hydroxy-ended polyether, adding, in a second stage, water and a basic catalyst, this second stage being performed in the presence of a polymeric material containing groups reactive with organic isocyanate and acting as a foam stabilizer. Suitable reactants are given, the catalysts being tertiary amines, and the stabilizers including cellulose caprate and ethyl cellulose. Foam structure can be varied by adding organopolysiloxanes and surface active agents with sulphonic acid and/or sulphate ester groups. Specification 842,734 is referred to.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3611757A GB850664A (en) | 1957-11-20 | 1957-11-20 | Improvements in or relating to the manufacture of cellular polymeric materials |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3611757A GB850664A (en) | 1957-11-20 | 1957-11-20 | Improvements in or relating to the manufacture of cellular polymeric materials |
Publications (1)
Publication Number | Publication Date |
---|---|
GB850664A true GB850664A (en) | 1960-10-05 |
Family
ID=10385133
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3611757A Expired GB850664A (en) | 1957-11-20 | 1957-11-20 | Improvements in or relating to the manufacture of cellular polymeric materials |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB850664A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3328320A (en) * | 1963-02-25 | 1967-06-27 | Ici Ltd | Manufacture of flexible polyurethane foams utilizing polyether-polyisocyanate dispersion |
-
1957
- 1957-11-20 GB GB3611757A patent/GB850664A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3328320A (en) * | 1963-02-25 | 1967-06-27 | Ici Ltd | Manufacture of flexible polyurethane foams utilizing polyether-polyisocyanate dispersion |
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