EPOXIDE-TERMINATED, URETHODIONE GROUP-CONTAINING POLYADDUCT COMPOUND, PREPARATION THEREOF, TRANSPARENT OR COLORED POLYURETHANE POWDER COATING AND POLYURETHANE PLASTIC

PROBLEM TO BE SOLVED: To provide an epoxide-terminated, urethodione group-containing polyadduct compound. SOLUTION: The compound is obtained by allowing A) 40 to 84.5 wt.% polyisocyanate component comprising 1) 40 to 84.5 wt.% urethodione group- containing polyisocyanate compound having an average f...

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1. Verfasser: WENNING ANDREAS DR
Format: Patent
Sprache:eng
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Zusammenfassung:PROBLEM TO BE SOLVED: To provide an epoxide-terminated, urethodione group-containing polyadduct compound. SOLUTION: The compound is obtained by allowing A) 40 to 84.5 wt.% polyisocyanate component comprising 1) 40 to 84.5 wt.% urethodione group- containing polyisocyanate compound having an average functional value of at least 2.0 and; 2) 60 wt.% or less urethodione group-free diisocyanate compound and/or isocyanurate compound; to react with B) 50 to 15 wt.% compound having at least two hydroxy groups; and C) from 10 to 0.5 wt.% compound having at least one epoxide group and other compounds reactive against isocyanate groups. Here, the compound exists in a solid form at a temperature below 40 deg.C and in a liquid form at a temperature above 130 deg.C and has a number average molecular weight of 1,000 to 15,000 and a free isocyanate group content of 0 to 2 wt.%.