Invention Grant
- Patent Title: Interference pigments
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Application No.: US17296790Application Date: 2020-09-25
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Publication No.: US11746240B2Publication Date: 2023-09-05
- Inventor: Stephanie Andes , Ulrich Schoenefeld , Thomas Krasemann , Manfred Thon , Martina Welsch , Ralf Schweinfurth , Melanie Mechthild Breidung
- 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 Csaba Henter
- Priority: DE 2019006869.6 2019.10.02
- International Application: PCT/EP2020/076874 2020.09.25
- International Announcement: WO2021/063823A 2021.04.08
- Date entered country: 2021-05-25
- Main IPC: C09C1/00
- IPC: C09C1/00
Abstract:
The invention relates to interference pigments based on SiO2 flakes having a broad layer-thickness distribution, and to the use thereof in paints, coatings, powder coatings, plastics and in particular in cosmetic formulations and for colouring food and pharmaceutical products.
Public/Granted literature
- US20220356356A1 INTERFERENCE PIGMENTS Public/Granted day:2022-11-10
Information query
