Polyurethane polymer or oligomer having carbamate groups, method

Details Polyurethane polymer or oligomer having carbamate groups, method Polyurethane polymer or oligomer having carbamate groups, method

1997-10-15

1998-10-27

Gorr, Rachel

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525456, 525460, C08G 1828

Patent

active

058279318

ABSTRACT:
Polyurethane polymers having pendant carbamate groups are disclosed. The polymers are prepared by:
(a) reacting a mixture comprising a polyol having at least one pendant carbamate group and a polyisocyanate to form a polyurethane having pendant carbamate groups, and
(b) optionally, capping the polyurethane from (b) with an active hydrogen-containing capping agent.

REFERENCES:
patent: 4177342 (1979-12-01), Bock et al.
patent: 5093456 (1992-03-01), Mitra et al.
patent: 5373069 (1994-12-01), Rehfuss
patent: 5723552 (1998-03-01), Menovcik et al.

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