C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
C08F 226/10 (2006.01) A61K 8/81 (2006.01) A61K 9/20 (2006.01) A61K 9/28 (2006.01) A61Q 5/06 (2006.01) C08F 6/12 (2006.01) C08F 218/08 (2006.01) C08F 218/18 (2006.01) C08J 3/12 (2006.01) C09D 131/04 (2006.01) A61K 7/11 (1990.01)
Patent
CA 2083651
A process for preparing a free-flowing redispersible powder composed of a vinyl- pyrrolidone/vinyl acetate copolymer containing 15-40% by weight of vinylpyrrolidone units wherein the mixture of the monomers is copolymerized in organic solution, the resulting solution is, after addition of a surfactant, subjected to replacement of the solvent by water, and the resulting dispersion is spray- or freeze-dried, and the use of the redispersible powder for producing paints and coating compositions, glues and adhesives and, in particular, the matrix and/or coating of solid slow- release pharma-ceutical forms and of hair-spray formulations are described.
Buehler Volker
Grabowski Sven
Sanner Axel
Basf Aktiengesellschaft
Buehler Volker
Grabowski Sven
Robic
Sanner Axel
LandOfFree
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