Resin particles and process for producing same, antiglare film, light-diffusing resin composition, and external preparation
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United States of America Patent
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Feb 13, 2018
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Sep 28, 2011
filing date -
Sep 28, 2010
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Abstract
A process for producing resin particles includes a step in which a polymerizable mixture including a polymerizable monomer including at least one of a styrene-based monomer and a (meth)acrylic-based monomer, and a polymerization initiator is absorbed into seed particles in an aqueous medium, without using a dispersant, in the presence of an anionic surfactant not having a polyoxyethylene chain but having an alkyl group; and a step in which the polymerizable monomer is polymerized in an aqueous medium, without using a dispersant, in the presence of an anionic surfactant having a polyoxyethylene chain to thereby obtain resin particles. The resin particles include a resin derived from a polymerizable monomer including at least one of a styrene-based monomer and a (meth)acrylic-based monomer. The proportion by number of particles having a particle diameter in the range of from 80 to 120% of the volume-average particle diameter is 85% or more.
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