C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
C08G 18/12 (2006.01) B32B 7/12 (2006.01) C08G 18/10 (2006.01) C08G 18/42 (2006.01) C08G 18/48 (2006.01) C09J 11/08 (2006.01) C09J 175/06 (2006.01) C09J 175/08 (2006.01)
Patent
CA 2187524
A moisture curable hot melt composition comprises: (a) a first isocyanate-terminated polyurethane prepolymer that is the reaction product of a crystalline polyester polyol and a polyisocyanate; (b) a crystalline, reactive wax; and (c) optionally, a second isocyanate- terminated polyurethane prepolymer that is the reaction product of a hydroxy-functional polymer that is different than the crystalline polyester polyol.
La présente invention concerne une composition thermofusible durcissable en milieu humide, comprenant (a) un premier prépolymère polyuréthane à terminaison isocyanate, qui est le produit réactionnel d'un polyol polyester cristallin et d'un polyisocyanate, (b) une cire réactive cristalline et, éventuellement, (c) un second prépolymère polyuréthane à terminaison isocyanate, qui est le produit réactionnel d'un polymère hydroxyfonctionnel, différent du polyol polyester cristallin.
Stobbie Charles W. IV
Tangen John C.
Minnesota Mining And Manufacturing Company
Smart & Biggar
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