Invention Grant
- Patent Title: Interference pigments
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Application No.: US15086750Application Date: 2016-03-31
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Publication No.: US10822497B2Publication Date: 2020-11-03
- Inventor: Christoph Schmidt , Tanja Delp , Sabine Schoen
- Applicant: Merck Patent GmbH
- Applicant Address: DE Darmstadt
- Assignee: Merck Patent GmbH
- Current Assignee: Merck Patent GmbH
- Current Assignee Address: DE Darmstadt
- Agency: Millen White Zelano and Branigan, PC
- Agent John Sopp
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@10b0de4e com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@2199b402
- Main IPC: C09C1/00
- IPC: C09C1/00 ; C09D5/36 ; C08K9/10 ; A23G3/36 ; A61Q3/02 ; A61Q19/10 ; A61K8/29

Abstract:
The present invention relates to interference pigments based on transparent, low-refractive-index, flake-form substrates which have a high-refractive-index coating consisting of TiO2 having a layer thickness of 20-200 nm and optionally an outer protective layer, and to the use thereof in paints, coatings, printing inks, security printing inks, plastics, button pastes, ceramic materials, glasses, for seed coloring, as dopants in the laser marking of plastics and papers, as additive for the laser welding of plastics, as additive for coloring in the foods and pharmaceuticals sectors, and in cosmetic formulations and for the preparation of pigment compositions and dry preparations.
Public/Granted literature
- US20160222213A1 INTERFERENCE PIGMENTS Public/Granted day:2016-08-04
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