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:
Jun. 25, 2002
Filed:
Mar. 02, 2000
Applicant:
Inventors:
Peter Schuhmacher, Mannheim, DE;
Norbert Schneider, Altrip, DE;
Volker Richter, Heidelberg, DE;
Harald Keller, Ludwigshafen, DE;
Peter Blaschka, Ludwigshafen, DE;
Günter Bettinger, Schifferstadt, DE;
Frank Meyer, Mannheim, DE;
Erich Beck, Ladenburg, DE;
Karl Siemensmeyer, Frankenthal, DE;
Helmut Steininger, Worms, DE;
Wolfgang Best, Freinsheim, DE;
Assignee:
BASF Aktiengesellschaft, Ludwigshafen, DE;
Primary Examiner:
Int. Cl.
CPC ...
B32B 5/16 ;
U.S. Cl.
CPC ...
B32B 5/16 ;
Abstract
Improved cholesteric special-effect layers are obtainable by comminuting cholesteric layers. These cholesteric layers are produced by applying at least one layer of a reactive, pourable cholesteric mixture to a moving substrate, by casting, and forming a solid cholesteric layer.