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:
Aug. 19, 1997
Filed:
May. 11, 1995
Applicant:
Inventors:
Clint W Carpenter, Royal Oak, MI (US);
S Kendall Scott, Allen Park, MI (US);
Assignee:
BASF Corporation, Southifeld, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08K / ;
U.S. Cl.
CPC ...
524403 ; 428403 ; 428404 ; 428407 ; 523200 ; 524398 ; 524399 ; 524406 ; 524408 ; 524413 ;
Abstract
The present invention is a composition comprising an optically variable pigment modified with metal salt selected from the group consisting of salts of transition metals having atomic numbers 21-28; 39-42, 57 and 72-74; and salts of the lanthanide series of rare earth metals having atomic numbers of from 58 to 71. The invention also includes a method for forming the surface treated pigments and coating compositions containing the pigments.