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:
Sep. 11, 1990
Filed:
Dec. 02, 1988
Applicant:
Inventors:
Joachim Kranz, Ludwigshafen, DE;
Alois Wiesenberger, Lambsheim, DE;
Assignee:
BASF Aktiengesellschaft, Ludwigshafen, DE;
Primary Examiner:
Int. Cl.
CPC ...
C04B / ; C09B / ; C08K / ;
U.S. Cl.
CPC ...
106401 ; 106412 ; 106413 ; 106499 ; 106505 ;
Abstract
Grinding crude pigments together with inorganic grinding aids, for example rock salt and dialkyl phthalates, phenoxyethanol, 2-phenylethanol and/or dialkyl benzoates gives soft-textured pigments which produce strong colorings of higher transparency and/or higher cleanliness of hue than prior art pigments.