C - Chemistry – Metallurgy – 09 – D
Patent
C - Chemistry, Metallurgy
09
D
400/5120
C09D 5/44 (2006.01) C08F 275/00 (2006.01)
Patent
CA 2022493
A cationically electrodepositable finely divided gelled polymer obtained by, in the first step, emulsion polymerizing (A) a monomer component comprising: (a) a polymerizable unsaturated vinylsilane monomer containing a vinylic double bond and a hydrolyzable alkoxysilane group; (b) a polymerizable monomer having at least two radically polymerizable unsaturated groups in a molecule; (c) a polymerizable unsaturated monomer having a vinylic double bond and a hydroxyl group; and (d) another polymerizable unsaturated monomer, using a cationically reactive emulsifying agent having an allyl group in a molecule; and in the second step, emulsion polymerizing a monomer component (B) comprising: (e) a blocked monoisocyanate or polyisocyanate in which at least one isocyanate group in a molecule is blocked with a radically polymerizable monohydroxy compound; (f) a polymerizable unsaturated monomer having a vinylic double bond and a hydroxyl group; and (g) another polymerizable unsaturated monomer, in the presence of an aqueous finely divided gelled polymer obtained in the first step, the polymer having a core- 49 sheath structure in which the polymerized product of the monomer component (A) is a core and the polymerized product of the monomer component (B) is a sheath, and process for producing same.
Hiraki Tadayoshi
Katayama Teiji
Kato Kiyoshi
Nagaoka Haruo
Yamamoto Kenji
Kansai Paint Co. Ltd.
Smart & Biggar
LandOfFree
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