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. 07, 2000
Filed:
Apr. 16, 1998
Applicant:
Inventors:
Axel Schoenfeld, Wiesbaden, DE;
Bernd Dewald, Idstein, DE;
Assignee:
Clariant GmbH, Frankfurt, DE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C09K / ;
U.S. Cl.
CPC ...
428-11 ; 349110 ; 349187 ; 349193 ; 428-131 ; 428-15 ; 428-151 ; 428-152 ;
Abstract
A polymer laminate essentially consisting of at least two cholesteric, liquid-crystalline polymer layers and a light-absorbent layer in between is suitable as starting material for effect pigments having a color impression which is dependent on the viewing angle.
Schoenfeld, Axel. (2000). Polymer laminates having increased hiding power (U.S. Patent No. 6143379). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6143379
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile