Self-emulsifiable isocyanate-terminated prepolymer, and aqueous

Details Self-emulsifiable isocyanate-terminated prepolymer, and aqueous Self-emulsifiable isocyanate-terminated prepolymer, and aqueous

1993-11-24

1994-12-13

Welsh, Maurice J.

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...

524839, 528 49, 528 59, 528 73, C08L 7500

Patent

active

053730500

ABSTRACT:
The present invention is directed to a self-emulsifiable isocyanate-terminated prepolymer, having an average NCO functionality of from 2.0 to 3.5, which is prepared from: (a) a polyisocyanate mainly composed of at least one of aliphatic polyisocyanates, alicyclic polyisocyanates, and aromatic polyisocyanates, (b-1) a hydrophilic surfactant having at least one active hydrogen group capable of reacting with an isocyanate group, and (b-2) an aliphatic compound of 8 or more carbons, and/or a fatty acid ester in which the total of the carbons of a starting fatty acid and a starting hydroxyl-group-having compound is 8 or more, the aliphatic compound and the fatty acid ester having at least one active hydrogen group capable of reacting with the isocyanate group.

REFERENCES:
patent: 4663377 (1987-05-01), Hombach et al.
Japanese Patent Publication for Opposition Gasette No. Hei. 4-15270, published Mar. 17, 1992, and partial translation.

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