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:
Dec. 21, 1982
Filed:
Oct. 06, 1980
Applicant:
Inventors:
Dirk J Zwanenburg, Eindhoven, NL;
Wilhelmus P Nijssen, Eindhoven, NL;
Caspert G van der Staak, Eindhoven, NL;
Assignee:
U.S. Philips Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; G01D / ;
U.S. Cl.
CPC ...
428156 ; 3461351 ; 346137 ; 430945 ; 428204 ; 428207 ; 428520 ; 428913 ;
Abstract
Dye-containing layer of a film-forming polymeric binder and the application thereof in an information recording element. The invention relates to a dye-containing layer in which dye, if desired in a very large weight percentage is dissolved or finely divided in a copolymer (1:1) of methyl vinyl ether and maleic anhydride or a semi-ester thereof. The dye-containing layer is particularly suitable for use as a recording layer in an optical information recording element.