Non-yellowing polyurethane adhesives

Details Non-yellowing polyurethane adhesives Non-yellowing polyurethane adhesives

1990-07-20

1992-11-24

Kight, III, John

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

Synthetic resins

From reactant having at least one -n=c=x group as well as...

528 66, 528 77, 528 80, 528 81, 528 84, 528 85, 156327, 1563317, C08G 1812, C09J17504

Patent

active

051663007

ABSTRACT:
A non-yellowing urethane adhesive based on a polyurethane prepolymer which is prepared by reacting a specific combination of polyhydroxy compounds and an isocyanate compound. The polyhydroxy compounds include a polyalkylene ether diol, a polyalkylene ether triol, and a polyester polyol. The combination of these polyhydroxy compounds and an isocyanate compound results in an adhesive composition which has exceptionally good resistance to high temperature, humidity, and sustained UV radiation, particularly when applied to fabric-like materials.

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