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AssigneesFerro Enamels (Japan) Limited, Nippon Paint Co., Ltd.
InventorsYasumasa Asanaka, Hiroshi Takeuchi, Masanori Ohiwa, Tohru Nakatsuka, Shuhei Yamoto
Estimating the term…
Disclosed is a reactive particulate resin which is characterized by each particle thereof having a core of three-dimensionally crosslinked resin having a degree of crosslinking from 0.05 to 2.0 mmol/g, and a shell formed thereon having a radical-polymerizable ethylenic unsaturated bond and is formed by polymerization of one or more polyfunctional monomers (A) and one or more non-aromatic radical-polymerizable monomers (B), the polyfunctional monomer (A) having in the molecule (a) at least one species of 1-monosubstituted and 1,1-disubstituted radical-polymerizable ethylenic unsaturated bonds and also (b) at least one of at least one species of 1,2-disubstituted, 1,1,2-trisubstituted, and 1,1,2,2-tetrasubstituted radical-polymerizable ethylenic unsaturated bonds.
A reactive particulate resin, each particle of which comprises a core of a three-dimensionally crosslinked resin having a degree of crosslinking from 0.05 to 2.0 mmol/g, and a shell formed thereon having a radical-polymerizable ethylenic unsaturated bond, said shell being formed by polymerization of one or more polyfunctional monomers (A) and one or more non-aromatic radical-polymerizable monomers (B), said polyfunctional monomers (A) accounting for 1-50% of the total monomers from which the shell is formed and having in the molecule (a) at least one species of 1-monosubstituted and 1,1-disubstituted radical-polymerizable ethylenic unsaturated bonds and (b) at least one of at least one species of 1,2-disubstituted, 1,1,2-trisubstituted and 1,1,2,2-tetrasubstituted radical-polymerizable ethylenic unsaturated bonds.
A method for producing a reactive particulate resin which comprises a first step of synthesizing particle cores of three-dimensionally crosslinked resin having a degree of crosslinking in the range from 0.05 to 2.0 mmol/g, and a second step of forming on the surface of said particle core a shell having a radical-polymerizable ethylenic unsaturated bond, by polymerization of one or more polyfunctional monomers (A) and one of more non-aromatic radical-polymerizable monomers (B), said polyfunctional monomer (A) accounting for 1-50% of the total monomers from which the shell is formed and having in the molecule (a) at least one species of 1-monosubstituted and 1,1-disubstituted radical-polymerizable ethylenic unsaturated bonds and (b) at least one of at least one species of 1,2-disubstituted, 1,1,2-trisubstituted, and 1,1,2,2-tetrasubstituted radical-polymerizable ethylenic unsaturated bonds.
Dependencies are inferred from the claim text.