Invention Grant
- Patent Title: Thin aluminum pigments having a narrow thickness distribution, method for producing same, and use of aluminum pigments
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Application No.: US12515090Application Date: 2007-12-21
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Publication No.: US10407572B2Publication Date: 2019-09-10
- Inventor: Stefan Trummer , Michael Becker , Thomas Schlegl
- Applicant: Stefan Trummer , Michael Becker , Thomas Schlegl
- Applicant Address: DE
- Assignee: ECKART GMBH
- Current Assignee: ECKART GMBH
- Current Assignee Address: DE
- Agency: Ostrolenk Faber LLP
- Priority: DE102006062271 20061222
- International Application: PCT/EP2007/011349 WO 20071221
- International Announcement: WO2008/077612 WO 20080703
- Main IPC: C09C1/64
- IPC: C09C1/64

Abstract:
The invention relates to aluminum pigments which are at least partially coated with lubricant, wherein the aluminum pigments have a relative breadth of thickness distribution Δh of from 30% to less than 70%, as determined by a scanning electron microscope thickness count and as calculated on the basis of the corresponding cumulative breakthrough curve of the relative frequencies of occurrence, according to the formula Δh=100×(h90−h10)/h50, and an X-ray diffractogram, measured on pigments in substantially plane-parallel orientation, having one or two main peaks which do not correspond to the [111] reflexes.The invention further relates to a method for the production of said aluminum pigments and to uses thereof and also to nail varnishes and printing inks containing said aluminum pigments of the invention.
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