C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
C08G 18/79 (2006.01) C08G 18/22 (2006.01) C08G 18/42 (2006.01) C08G 18/70 (2006.01) C08G 18/80 (2006.01) C09J 175/06 (2006.01)
Patent
CA 2508259
The invention relates to a polyurethane reactive composition comprising an isocyanate, an isocyanate reactive polymeric compound and a catalyst for the reaction of the isocyanate with the isocyanate reactive compound. The isocyanate reactive compound is a diol or a higher functional polyol of a polyester, of a polyester polyurethane, of a polycarbonate or of a mixture thereof, the polyester being derived from a hydroxy carboxylic acid or from its corresponding lactone, and the catalyst is a sterically hindered bismuth compound.
L'invention concerne une composition réactive de polyuréthanne comportant un isocyanate, un composé polymère réactif à isocyanate et un catalyseur pour la réaction de l'isocyanate avec le composé polymère réactif à isocyanate. Le composé réactif à isocyanate est un diol ou un polyol fonctionnel supérieur d'un polyester, d'un polyuréthanne polyester, d'un polycarbonate ou d'un de leurs mélanges, le polyester étant dérivé d'un acide hydroxycarboxylique ou de sa lactone correspondante, et le catalyseur étant un composé bismuthé à empêchement stérique.
Rohrer Paul
Schneider Daniel
Symietz Detlef
Dow Global Technologies Inc.
Dow Global Technologies Llc
Smart & Biggar
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