C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
18/1163, 400/550
C08L 75/04 (2006.01) A01N 25/10 (2006.01) A23L 1/22 (2006.01) A61K 6/10 (2006.01) A61K 8/87 (2006.01) A61K 9/20 (2006.01) A61L 9/04 (2006.01) A61Q 19/00 (2006.01) B01J 13/00 (2006.01) B27K 3/14 (2006.01) C08G 18/08 (2006.01) C11D 17/00 (2006.01)
Patent
CA 1207486
ABSTRACT OF THE DISCLOSURE A polyol gel is made from 15-62 wt. % (based on the sum of polyurethane matrix plus dispersing agent) of a high molecular weight covalently cross-linked poly- urethane matrix; 85-38 wt. % (based on the sum of polyurethane matrix plus dispersing agent) of a liquid dispersing agent which is firmly bonded to the matrix; and optionally, active ingredients, fillers, additives, catalysts, and mixtures thereof. The liquid dispersing agent is a polyhydroxyl compound having a molecular weight of between 1,000 and 12,000 and an OH number between 20 and 112. This dispersing agent should have virtually no hydroxyl compounds having a molecular weight below 800 present. These gel compositions may be used to make mold impressions and highly stable active-ingredient releasing compositions.
394089
Schapel Dietmar
Aktiengesellschaft Bayer
Marcoux & Sher Swabey Mitchell Houle
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