FREMGANGSMAATE FOR FREMSTILLING AV STIVE POLYURETANSKUM, SAMT FORLOEPERBLANDINGER FOR SLIKE
This invention is directed to a process for preparing a rigid polyurethane foam which comprises reacting a polyisocyanate with polyol in the presence of a blowing agent, a polymerization catalyst and a surfactant. The polyol has the fnrmula:wherein R1, R2, and R3 are, each independently, hydrogen, a...
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| creator | SPORK, JOHANNES ELISABETH GERARDUS SHADID, OMAR BADIE GANSOW, MICHAEL AUGUST PAUL |
| description | This invention is directed to a process for preparing a rigid polyurethane foam which comprises reacting a polyisocyanate with polyol in the presence of a blowing agent, a polymerization catalyst and a surfactant. The polyol has the fnrmula:wherein R1, R2, and R3 are, each independently, hydrogen, a C1 - C6 alkyl group, bearing one or more halogen, hydroxyl, optionally substituted phenyl, optionally substituted cycloalkyl, or optionally substituted phenyl ether substituents, n is 1 or 2, and x + y + z is from 3.5 to 6. Rigid polyurethane foams produced by this process show a reduced degree of friability. |
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The polyol has the fnrmula:wherein R1, R2, and R3 are, each independently, hydrogen, a C1 - C6 alkyl group, bearing one or more halogen, hydroxyl, optionally substituted phenyl, optionally substituted cycloalkyl, or optionally substituted phenyl ether substituents, n is 1 or 2, and x + y + z is from 3.5 to 6. 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The polyol has the fnrmula:wherein R1, R2, and R3 are, each independently, hydrogen, a C1 - C6 alkyl group, bearing one or more halogen, hydroxyl, optionally substituted phenyl, optionally substituted cycloalkyl, or optionally substituted phenyl ether substituents, n is 1 or 2, and x + y + z is from 3.5 to 6. Rigid polyurethane foams produced by this process show a reduced degree of friability.</abstract><edition>4</edition><oa>free_for_read</oa></addata></record> |
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| subjects | AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON GENERAL PROCESSES OF COMPOUNDING MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP WORKING-UP |
| title | FREMGANGSMAATE FOR FREMSTILLING AV STIVE POLYURETANSKUM, SAMT FORLOEPERBLANDINGER FOR SLIKE |
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