Preparation of finely divided pulverulent crosslinked...

Details Preparation of finely divided pulverulent crosslinked... Preparation of finely divided pulverulent crosslinked...

C - Chemistry, Metallurgy

08

F

402/404

C08F 26/00 (2006.01) A61K 8/81 (2006.01) A61K 47/32 (2006.01) A61Q 19/00 (2006.01) C08F 220/04 (2006.01) C08F 220/34 (2006.01) C08F 220/54 (2006.01)

Patent

CA 1329678

- 16 - Abstract of the Disclosure: Pulverulent crosslinked co- polymers are prepared by polymerizing monomer mixtures consisting of (a) from 70 to 99.99% by weight of monoethylenically un- saturated carboxylic acids their amides and/or esters of such carboxylic acids and aminoalcohols, (b) from 0.001 to 10% by weight of a diethylenically or polyethylenically unsaturated monomer and (c) from 0 to 20% by weight of other monoethylenically unsaturated monomers in supercritical carbon dioxide under superatmospheric pressure in the presence of a free radical initiator.

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