Polyurethane composition

A polyurethane composition is produced by mixing (a) 100 parts by weight of prepolymer having terminal isocyanate groups and having a number average molecular weight in the range of from 800 to 20,000, (b) 5 - 30 parts by weight of a radical polymerizable vinyl compound, and (c) 0.05 - 1.0 part by w...

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Bibliographische Detailangaben
Hauptverfasser:	FUJII, YOSHIHIKO, ISEDA, YUTAKA, ODAKA, FUMIO
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:	A polyurethane composition is produced by mixing (a) 100 parts by weight of prepolymer having terminal isocyanate groups and having a number average molecular weight in the range of from 800 to 20,000, (b) 5 - 30 parts by weight of a radical polymerizable vinyl compound, and (c) 0.05 - 1.0 part by weight of a radical initiator, adding (d) a curative selected from the group consisting of polyamine and polyol, and curing the resulting mixture by heating at 70 - 140 DEG C, the equivalent ratio of the active hydrogen of (d) to the isocyanate groups of (a) being in the range of from 0.8 to 1.2.