Patent · US Active

Magnetic pigments comprising a flaky substrate and layer of maghemite

US10174203B2 · kind B2 · utility

1Cited by

3References

29Claims

0Family size

Assignee

Merck Patent GmbH · DE

Inventors

Kaiman Shimizu · Roth, DE
Tamio Noguchi
Fumiko Sasaki · Iwaki, JP
Yukitaka Watanabe · Iwaki, JP
Masahiko Yazawa · Iwaki, JP

Key dates

Filing date	Jun 8, 2010
Grant date	Jan 8, 2019
Priority date	—
Expiry date	Sep 5, 2034

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09C2200/306
WIPO fieldOther consumer goods
WIPO sectorOther fields

Abstract

Magnetic pigments containing a transparent flaky homogeneously composed substrate having two parallel major surfaces and a coating containing maghemite, a process for the production of said pigments as well as their use.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.