C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
400/105, 403/14,
C08G 18/06 (2006.01) C08G 18/10 (2006.01) C08G 18/63 (2006.01) C08G 18/70 (2006.01) C08L 75/04 (2006.01)
Patent
CA 1178389
ABSTRACT OF THE DISCLOSURE Novel polymer/polyisocyanate compositions made by polymerizing at least one ethylenically unsaturated monomer in situ in a blend of n first organic polyisocyanate and a stabilizer. The stabilizer comprises a polyoxyalkylene polyol having a number average molecular weight of at least 4000; an isocyanato terminated prepolymer formed by react- ing the polyoxyalkylene polyol and a second organic polyisocyanate with the proviso that the isocyanato terminated prepolymer and the first organic polyiso- cyanate provide greater than 25 equivalents of isocyanato groups per equivalent of hydroxyl groups; a polymer/polyol formed using the polyoxyalkylene polyol; a polymer/prepolymer formed using the poly- oxyalkylene polyol with the proviso indicated for the prepolymer above; or a modified polyol containing an ester group formed using the polyoxyalkylene polyol. The novel compositions provide highly stable dispersions of polymer particles in the first organic polyisocyanate and are highly useful in the production of polyurethane products.
390851
Hopley William G.
Union Carbide Corporation
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