Urea extended polyisocyanates

Details Urea extended polyisocyanates Urea extended polyisocyanates

1991-07-25

1992-07-07

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...

2521822, 4273899, 427392, 427393, 528 68, C08G 1838

Patent

active

051284073

ABSTRACT:
Disclosed herein is a stable fluid mixture and a binding composition containing the same; said mixture comprises a polyisocyanate and a solution of urea in water which is characterized in that the urea is premixed with water before it is admixed with the polyisocyanate to make a urea extended polyisocyanate.

REFERENCES:
patent: 3870665 (1975-03-01), Diehr et al.

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