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. 15, 1983
Filed:
Feb. 11, 1982
Applicant:
Inventors:
Donald P Specht, Rochester, NY (US);
Harold T Thomas, Rochester, NY (US);
Assignee:
Eastman Kodak Company, Rochester, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41M / ; G01D / ;
U.S. Cl.
CPC ...
428172 ; 346 / ; 3461351 ; 369272 ; 369288 ; 427146 ; 427384 ; 428195 ; 428199 ; 428207 ; 428209 ; 428210 ; 428411 ; 428913 ; 430945 ;
Abstract
Dyes conforming to the structure: ##STR1## wherein R.sub.1 is (CH.sub.2).sub.n or ##STR2## n is an integer from 0-5 and each R is independently selected from the group consisting of straight- and branched-chain alkyl groups of about 1-6 carbon atoms, have a high extinction coefficient at 488 nm and are compatible with common binders such as cellulose-nitrate. These dyes are useful in deformable recording compositions for optical recording elements, e.g., video discs.