Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
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.
Menovcik Gregory L.
Ohrbom Walter H.
BASF Corporation
Gorr Rachel
Sabourin Anne Gerry
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