The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 20, 1986
Filed:
Jun. 10, 1985
Applicant:
Inventors:
Klaus Hunger, Kelkheim, DE;
Wolfgang Rieper, Frankfurt am Main, DE;
Assignee:
Hoechst Aktiengesellschaft, Frankfurt, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09B / ; C09B / ; C09D / ;
U.S. Cl.
CPC ...
1062 / ; 106 23 ; 534747 ; 534887 ;
Abstract
The invention relates to a process for improving the application properties of Pigment Yellow 13. The crude pigment is heated in an aqueous suspension to temperatures above 100.degree. C. Pigment Yellow 13 thus obtained is particularly suitable for replacing lead-containing chrome yellow pigments of comparable shade.