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:
Dec. 22, 1992
Filed:
Apr. 20, 1992
Applicant:
Inventor:
Karl Roth, Limburgerhof, DE;
Assignee:
BASF Aktiengesellschaft, Ludwigshafen, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09C / ; C09C / ; C09C / ; C09C / ;
U.S. Cl.
CPC ...
106401 ; 106400 ; 106499 ;
Abstract
Readily dispersible pigment granules are prepared by dispersing, in an aqueous suspension of the pigment, by thorough stirring, a gas which does not react with the suspension in fine bubbles under essentially atmospheric pressure and converting the resulting pigment suspension into pigment granules by spray drying or by mechanical removal of the liquid, shaping of the still moist pigment cake and subsequent drying.