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:
Apr. 01, 2008
Filed:
Nov. 15, 2001
Guenter Etzrodt, Stuttgart, DE;
Achim Grefenstein, Altrip, DE;
Wieland Jenet, Worms, DE;
Robert Bayer, Sinsheim, DE;
Reinhold Rieger, Ludwigshafen, DE;
Guenter Etzrodt, Stuttgart, DE;
Achim Grefenstein, Altrip, DE;
Wieland Jenet, Worms, DE;
Robert Bayer, Sinsheim, DE;
Reinhold Rieger, Ludwigshafen, DE;
BASF Aktiengesellschaft, Ludwigshafen, DE;
Abstract
A pigment formulation in granule form obtainable by a) dispersing at least two different pigments (A) in a solution of a thermoplastic polymer (B) in an organic solvent in the presence or absence of a dispersant (C), and b) applying as a layer the dispersion produced in step a) to granules of a thermoplastic polymer (B'), which is the same as the polymer (B), with removal of the solvent, wherein the pigment formulation includes the granules of the thermoplastic polymer (B′); and a coating on the granules of the thermoplastic polymer (B′), where the coating comprises the at least two different pigments (A) and the thermoplastic polymer (B).