C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
402/140, 400/741
C08G 18/32 (2006.01) C08G 18/10 (2006.01) C08L 75/04 (2006.01)
Patent
CA 1205249
Abstract of the Disclosure The object of this invention is a moisture-curing, storage stable, single-component polyurethane system comprising: A. a polyurethane prepolymer with a free isocyanate content of 1 to 5 percent by weight; B. a dialdimine having the formula R[-N=CH-C(CH3)2-CH2-O-CO-CH-(CH3)2]2 in which R is a divalent aliphatic radical with 2 to 10 carbon atoms, aliphatic radical having 4 to 10 carbon atoms and containing ether oxygen and/or lower alkylamino nitrogen atoms, cycloaliphatic radical with 6 to 15 carbon atoms or aromatic radical with 6 to 21 carbon atoms; and C. an acid catalyst selected from the group consist- ing of aliphatic carboxylic acids, aromatic carboxylic acids, toluenesulfonic acid, and mixtures thereof. The polyurethane systems are used as coating, sealing, casting, spackling and bonding materials.
439375
Bueltjer Uwe
Druschke Wolfgang
Foerster Hans-Juergen
Franzmann Gernot
Horacek Heinrich
Basf Aktiengesellschaft
Robic Robic & Associes/associates
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