PREPARATION OF SOFT FLEXIBLE POLYURETHANE FOAMS USING WATER CONTAINING NON-CROSSLINKED, WATER SOLUBLE ORGANIC POLYELECTROLYTE
A process for preparing a soft flexible polyurethane foam by reacting (a) one or more organic polyisocyanates with (b) one or more polyols having a molecular weight in the range of from 400 to 12,000, in the presence of (c) a catalyst, (d) a blowing agent, and (e) if required, auxiliaries and/or ad...
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Main Authors | , , |
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Format | Patent |
Language | English |
Published |
28.08.1990
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Edition | 4 |
Subjects | |
Online Access | Get full text |
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Summary: | A process for preparing a soft flexible polyurethane foam by reacting (a) one or more organic polyisocyanates with (b) one or more polyols having a molecular weight in the range of from 400 to 12,000, in the presence of (c) a catalyst, (d) a blowing agent, and (e) if required, auxiliaries and/or additives, wherein the blowing agent (d) comprises water in admixture with 0.01 to 1 pbw, per 100 pbw polyol (b), of one or more non-crosslinked organic polyelectrolytes having a molecular weight in the range of 1000 to 20,000,000. |
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Bibliography: | Application Number: NZ19900232938 |