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:
Oct. 12, 2004
Filed:
Sep. 14, 2000
Applicant:
Inventors:
Assignee:
Bayer Chemicals AG, Leverkusen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09C 1/00 ; C01B 3/100 ;
U.S. Cl.
CPC ...
C09C 1/00 ; C01B 3/100 ;
Abstract
This invention relates to carbon black pellets obtained by compaction of carbon black powder in the presence of auxiliary substances, which pellets, despite the compaction, surprisingly exhibit greater color intensity than the powders on which they are based.