Invention Grant
- Patent Title: Magnetic pigments
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Application No.: US13992116Application Date: 2011-11-14
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Publication No.: US10253191B2Publication Date: 2019-04-09
- Inventor: Kaiman Shimizu , Fumiko Sasaki , Yukitaka Watanabe , Masahiko Yazawa
- Applicant: Kaiman Shimizu , Fumiko Sasaki , Yukitaka Watanabe , Masahiko Yazawa
- Applicant Address: DE Darmstadt
- Assignee: MERCK PATENT GMBH
- Current Assignee: MERCK PATENT GMBH
- Current Assignee Address: DE Darmstadt
- Agency: Millen White Zelano & Branigan
- Priority: EP10015472 20101209
- International Application: PCT/EP2011/005731 WO 20111114
- International Announcement: WO2012/084097 WO 20120628
- Main IPC: C09D5/23
- IPC: C09D5/23 ; B42D15/00 ; C09D11/322 ; C09C1/00 ; H01F1/37 ; C09D11/037
Abstract:
The present invention is related to magnetic pigments comprising a transparent flaky homogeneously composed substrate having two parallel major surfaces and a coating comprising a layered structure composed of a hematite and a magnetite layer, to a process for the production of said pigments as well as to their use.
Public/Granted literature
- US20130257035A1 MAGNETIC PIGMENTS Public/Granted day:2013-10-03
Information query
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