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. 08, 1994
Filed:
Nov. 22, 1993
Applicant:
Inventors:
Christoph Muller-Rees, Pullach, DE;
Robert Maurer, Munchen, DE;
Jurgen Stohrer, Munchen, DE;
Franz-Heinrich Kreuzer, Martinsried, DE;
Silvia Jung, Munchen, DE;
Franz Csellich, Unterhaching, DE;
Assignee:
Consortium fur elektrochemische Industrie GmbH, Munich, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09K / ; C09K / ;
U.S. Cl.
CPC ...
106493 ; 106499 ; 106500 ; 106505 ; 106506 ; 2522995 ; 528502 ;
Abstract
The invention relates to pigments whose color depends on the viewing angle, their preparation and use. These pigments comprise oriented three-dimensionally crosslinked substances of liquid-crystalline structure having a chiral phase and, if desired, further dyes and pigments, the further dyes and pigments if present not serving as base for the oriented three-dimensionally crosslinked liquid-crystalline substances having a chiral phase.