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:
Nov. 02, 1999
Filed:
Jan. 16, 1997
Applicant:
Inventors:
Assignee:
DaimlerChrysler AG, Stuttgart, DE;
Primary Examiner:
Int. Cl.
CPC ...
C09K / ; C09K / ; C09K / ; C09D / ;
U.S. Cl.
CPC ...
106493 ; 106490 ; 106506 ; 25229901 ; 2522997 ; 428-1 ; 523171 ; 524269 ;
Abstract
The invention relates to a pigment with color dependent on the viewing angle, which has been obtained by three-dimensional crosslinking of oriented substances of liquid-crystalline structure having a chiral phase. In order to stabilize the color of such a pigment at elevated temperatures, crosslinking is carried out in the presence of at least one additional, color-neutral compound comprising at least two crosslinkable double bonds.