Polyurethane compositions

Details Polyurethane compositions Polyurethane compositions

1998-11-10

2000-10-17

Sergent, Rabon

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From silicon reactant having at least one...

25218214, 25218222, 525453, 525474, 528 32, 528 38, 528 59, 528 67, 528905, C08G 1838, C08G 1810, C08G 1840, C08G 1872, C08G 1873

Patent

active

061333956

ABSTRACT:
This invention is a one-component moisture curable polyurethane composition containing a urethane prepolymer and at least one silane compound containing an average of at least 1.5 NCO groups, and an average of at least 1.5 hydrolyzable alkoxy groups, selected from the group comprising a silane compounds (B-1) which is prepared by the addition reaction of a secondary aminoalkoxysilane compound and a polyol-based polyisocyanate compound, and a lysine-based silane compound (B-2). The Polyol-based polyisocyanate compound is a reaction product of a polyol more than triol and diisocyanate. The composition of the invention is particularly suitable for bonding glass to other substrates such as, for example, metal, plastics, and painted steel plates without employing a primer. Moreover, the composition has good foaming resistance, as well as good elongation.

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