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:
May. 25, 1993
Filed:
Mar. 11, 1992
Applicant:
Inventors:
Assignee:
Bayer Aktiengesellschaft, Leverkusen-Bayerwerk, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08J / ; C08J / ; C09B / ; G02B / ;
U.S. Cl.
CPC ...
8506 ; 8636 ; 544 14 ; 544 76 ;
Abstract
Light-polarizing films or foils, preferably based on a vinyl alcohol homopolymer or copolymer, contain dyes corresponding to the following formula ##STR1## in which R, R.sup.1, T.sup.1, T.sup.2, n, X and Z are as defined in the specification.