Polyurethane latex sizing agents for the paper industry and thei

Details Polyurethane latex sizing agents for the paper industry and thei Polyurethane latex sizing agents for the paper industry and thei

1985-05-20

1986-10-14

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...

10628723, 10628724, 10628726, 252182, 524874, 528 71, C08L 7504

Patent

active

046173412

ABSTRACT:
A sizing agent for the paper industry comprising a cationic oligourethane latex; said urethane having the formula: ##STR1## in which R.sub.2 is an alkylene radical containing a C.sub.2 -C.sub.6 radical or a polyoxyalkylenic radical of a degree of polycondensation of 1 to 4,

REFERENCES:
patent: 3971764 (1976-07-01), Schurmann et al.

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