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:
Jun. 01, 2004
Filed:
Dec. 05, 2001
Applicant:
Inventors:
Werner Schäfer, Essen, DE;
Manfred Scheiba, Essen, DE;
Stefan Stadtmüller, Essen, DE;
Markus Weimann, Bottrop, DE;
Karlheinz Rümpler, Weimar, DE;
Ulrich Walter, Weimar, DE;
Assignee:
Goldschmidt AG, Essen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L 3/02 ;
U.S. Cl.
CPC ...
C08L 3/02 ;
Abstract
The invention relates to a process for preparing nondusting free-flowing pigment concentrates with removal of the water from pigment suspensions comprising polymers and dispersants in a fluidized bed drier. The resulting bead-form pigment concentrates are nondusting and readily free-flowing. The invention further embraces the use of pigment concentrates prepared in this way for coloring plastics and polymers.