Aqueous polyurethane dispersions and their use for preparing coa

Details Aqueous polyurethane dispersions and their use for preparing coa Aqueous polyurethane dispersions and their use for preparing coa

1996-08-20

1998-03-31

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...

524539, 524589, 524590, 524839, 524840, 524874, C08J 300, C08K 320, C08L 7500

Patent

active

057339678

ABSTRACT:
The present invention relates to aqueous dispersions of polyurethanes containing hydantoin groups (calculated as C.sub.3 N.sub.2 O.sub.2, MW 96) in an amount of 1 to 40% by weight, based on resin solids. The present invention also relates to the use of these dispersions for preparing coatings with excellent hydrolytic and thermal stability.

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