Polyurethane prepared from hydroxyl-terminated prepolymer and an

Details Polyurethane prepared from hydroxyl-terminated prepolymer and an Polyurethane prepared from hydroxyl-terminated prepolymer and an

1994-01-10

1994-12-20

Sellers, Robert E.

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...

524404, 524452, 524539, 525 28, C08K 322

Patent

active

053746767

ABSTRACT:
The polyurethane oligomer reaction product of a hydroxyl-terminated prepolymer with a dicarboxylic acid anhydride is incorporated into conventional thermosetting polyester resin formulations to impart improved impact properties and reduced shrinkage behavior.

REFERENCES:
patent: 3218274 (1965-11-01), Boller et al.
patent: 3419510 (1968-12-01), Hudak
patent: 3962369 (1976-06-01), Chang et al.
patent: 4413072 (1983-11-01), Hess et al.

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