Patent · US Expired

Goniochromatic luster pigments based on titanium dioxide-coated silicatic platelets which have been heated in a reducing atmosphere

US6139614A · kind A · utility

22Cited by

7References

9Claims

0Family size

Assignee

BASF SE

Inventors

Raimund Schmid · Neustadt, DE
Oliver Seeger · Mannheim, DE
Norbert Mronga · Dossenheim, DE

Key dates

Filing date	Apr 28, 1999
Grant date	Oct 31, 2000
Priority date	—
Expiry date	Apr 28, 2019

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09C2220/106
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

Goniochromatic luster pigments are based on titanium dioxide-coated silicatic platelets which have been heated in a reducing atmosphere and which comprise at least one layer packet comprising PA1 A) a colorless coating having a refractive index n.ltoreq.1.8 and PA1 B) a colorless coating having a refractive index n.gtoreq.2.0.

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