Patent · US Expired

Tetrachloroperylene-3,4,9,10-tetracarboxylic acid diimide pigment and its use

US4846892A · kind A · utility

13Cited by

2References

7Claims

0Family size

Assignee

BASF SE

Inventors

Georg Henning · Ludwigshafen, DE
Erwin Hahn · Heidelberg, DE
Peter Hauser · Raleigh, US
Manfred Patsch · Monsheim, DE

Key dates

Filing date	Sep 3, 1987
Grant date	Jul 11, 1989
Priority date	—
Expiry date	Sep 3, 2007

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09B67/0025
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

A tetrachloroperylene-3,4,9,10-tetracarboxylic acid diimide pigment which contains not less than 85% by weight of the tetrachloro compound of the formula ##STR1## which is present to the extent of not less than 95% by weight in the .beta.-modification and which, in an X-ray spectrum, exhibits 2.sup..crclbar. CuK.sub..alpha. main lines at 9.0.degree., 13.3.degree., 15.0.degree., 16.8.degree., 19.1.degree., 21.5.degree., 24.2.degree., 25.4.degree., 26.5.degree., 27.0.degree. and 27.5.degree.. In finishes, the pigment gives very brilliant colorations which are very highly lightfast and fast to weathering and which, upon weathering, neither bleach nor darken up.

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