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1. (WO2018100806) RESIN-COATED METALLIC PIGMENT

Pub. No.:    WO/2018/100806    International Application No.:    PCT/JP2017/028726
Publication Date: Fri Jun 08 01:59:59 CEST 2018 International Filing Date: Wed Aug 09 01:59:59 CEST 2017
IPC: C09C 1/62
C09C 3/10
C09D 7/12
C09D 11/00
C09D 201/00
Applicants: DIC CORPORATION
DIC株式会社
Inventors: NAKAZAWA Daisuke
仲澤 大助
SUGIYAMA Kazuhiro
杉山 和弘
OTSUBO Takuya
大坪 拓哉
KOSAKA Norio
小坂 典生
Title: RESIN-COATED METALLIC PIGMENT
Abstract:
In a process for treating an aluminum pigment using an acidic monomer, the outermost surface of the pigment corrodes and smoothness is compromised, or a polymer coating is not formed to a uniform thickness; therefore, the gloss and sense of brightness caused by the scattering of incident light will be degraded. Furthermore, chemical resistance is degraded by the presence of portions (pinholes) where the polymer coating is not formed. This resin-coated metallic pigment was perfected upon it having been discovered that exceptional surface smoothness is exhibited in a resin-coated metallic pigment coated by a polymer that contains a monomer having a hydroxyl group, whereby the resin coating is uniform, which yields a sense of optical brilliance.