Preparation of nonaqueous dispersions with the use of...

C - Chemistry – Metallurgy – 08 – J

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400/4033, 400/42

C08J 3/26 (2006.01) C08F 2/08 (2006.01)

Patent

CA 1213694

- 29 - Abstract of the Disclosure Crosslinked, preferably acrylic, preferably melamine crosslinked, polymer particles formed by reactions comprising free radical addition polymerization of: (a) between about 0.5 and about 20 weight percent each of first and second monomers, each bearing functionality capable of crosslinking reaction with the other, wherein (i) either both additionally are ethylenically unsaturated monomers or (ii) the first monomer additionally is ethylenically unsaturated and the second monomer bears multiple crosslinking functionality and no ethylenic unsaturation; and (b) between about 60 and about 99 weight percent of at least one other mono- ethylenically unsaturated monomer; in the presence of (I) an organic liquid which is a solvent for the polymerizable monomers, but a non-solvent for the resultant polymer, and (II) polymeric dispersion stabilizer bearing one long chain non-polar hydrocarbon molecule and one vinyl unsaturation.

446327

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