Aqueous polyurethane/urea dispersions containing alkoxysilane gr

Details Aqueous polyurethane/urea dispersions containing alkoxysilane gr Aqueous polyurethane/urea dispersions containing alkoxysilane gr

1997-12-17

1999-07-06

Niland, Patrick D.

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524588, 524591, 524839, 524840, 4284231, C08J 300, C08K 320, C08L 7500, C08L 8300

Patent

active

059198605

ABSTRACT:
The present invention relates to aqueous polyurethane/urea dispersions wherein the polyurethane/ureas contain 0.5 to 6% by weight, based on the weight of the polyurethane/ureas, of alkoxysilane groups (calculated as Si, MW 28), which have been incorporated by the reaction of isocyanate groups with compounds containing alkoxysilane groups and secondary amino groups other than aspartate groups. The present invention also relates to a process for preparing these aqueous polyurethane/urea dispersions and to coatings prepared from these aqueous polyurethane/urea dispersions.

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