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. 15, 1999
Filed:
Mar. 26, 1997
Applicant:
Inventors:
Harald Keller, Ludwigshafen, DE;
Karl Siemensmeyer, Frankenthal, DE;
Peter Schuhmacher, Mannheim, DE;
Manfred Muller, Gelsenkirchen, DE;
Rudolf Zentel, Nierstein, DE;
Georg Maxein, Neuwied, DE;
Assignee:
BASF Aktiengesellschaft, Ludwigshafen, DE;
Primary Examiner:
Int. Cl.
CPC ...
C09K / ; C09K / ; F21V / ;
U.S. Cl.
CPC ...
25229901 ; 252582 ; 25229962 ;
Abstract
Polymerized liquid-crystalline compositions are obtainable by radiation curing of mixtures comprising P0 a) one or more cellulose derivatives in which some or all of the hydroxyl groups of the cellulose are replaced by --OR, 13 O--CO--NH--R, --O--CO--R or --O--CO--OR, where each R can be identical or different and is an aliphatic or aromatic radical of up to 20 carbons,