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US 10,472,433 B2Granted
Acrylic polymer particles, production process therefor, ink composition, and coating composition
AssigneeMitsubishi Chemical Corporation
InventorsYoshikazu Saito, Takahiro Mukuda, Hiroyuki Fukuoka, Makoto Moriya, Masaaki Kiura, Masashi Serizawa
Life of this patent
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Abstract
Particles of an acrylic polymer comprising a constituent unit (A) derived from methyl methacrylic acid and a constituent unit (B) derived from a (meth)acrylic acid alkyl ester in which the alkyl group has 2 to 8 carbon atoms, wherein the particles having electrostatic buildup inhibition rate of 90 to 99.9%.
Claims15
Particles of an acrylic copolymer, the acrylic copolymer comprising:
- (A) a constituent unit (A) derived from methyl methacrylate;
- (B) a constituent unit (B) derived from a (meth)acrylic acid alkyl ester in which the alkyl group has 2 to 8 carbon atoms;
- and
- (C) a constituent unit (C) derived from an α,β-unsaturated carboxylic acid,
- wherein:
- the particles are in the form of a powder;
- the particles have a sodium element amount of 3.5 to 50 ppm;
- and
- the particles are formed of a single acrylic copolymer obtained by a process including only one polymerization step.
6 more elements
Dependencies are inferred from the claim text.