Invention Grant
- Patent Title: Composite pigment and production method thereof, paint composition containing composite pigment, and coating film
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Application No.: US16343794Application Date: 2017-10-23
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Publication No.: US11339298B2Publication Date: 2022-05-24
- Inventor: Takeshi Fujimura , Shogo Iseya , Hironori Shimoita , Yusuke Taniguchi
- Applicant: ISHIHARA SANGYO KAISHA, LTD.
- Applicant Address: JP Osaka
- Assignee: ISHIHARA SANGYO KAISHA, LTD.
- Current Assignee: ISHIHARA SANGYO KAISHA, LTD.
- Current Assignee Address: JP Osaka
- Agency: Melcher Patent Law PLLC
- Agent Jeffrey S. Melcher
- Priority: JPJP2016-207774 20161024,JPJP2017-072503 20170331,JPJP2017-087582 20170426,JPJP2017-108353 20170531
- International Application: PCT/JP2017/038189 WO 20171023
- International Announcement: WO2018/079487 WO 20180503
- Main IPC: C09C3/06
- IPC: C09C3/06 ; C09C1/00 ; C09C1/02 ; C09C1/36 ; C09D7/40 ; C09D133/02 ; C09D7/62 ; C09C3/12 ; C09C3/10 ; C09C3/08 ; C09D201/00 ; C09D7/42 ; C09C1/30 ; C09C1/62 ; C09D133/04

Abstract:
The purpose of the present invention is to provide: a composite pigment, and production method thereof, which can suppress luster of a coating film by modifying an inorganic coloring pigment, and which can be used in various applications such as low-gloss (luster reduction effect) pigments and matte pigments; a paint composition which can achieve both an excellent coating film texture and also the property of having low gloss and luster even when added to a coating film; and a coating film. In this composite pigment, the inorganic coloring pigment is fixed by an inorganic compound, and a plurality of particles of the inorganic coloring pigment are aggregated into granular form through the inorganic compound.
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