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:
Apr. 03, 1979
Filed:
Nov. 02, 1972
Applicant:
Inventors:
William Rowe, Westfield, NJ (US);
Eugene Golda, Monsey, NY (US);
Assignee:
Polychrome Corporation, Yonkers, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03C / ; G03F / ;
U.S. Cl.
CPC ...
96 49 ; 96 33 ; 96 4 / ; 96 6 / ; 961145 ; 96 4 / ; 101456 ; 101465 ; 101466 ; 252351 ; 252352 ; 252353 ; 252356 ; 252358 ;
Abstract
A developer composition for photosensitive coatings on substrates, particularly lithographic printing plates sensitized with substantially water-insoluble diazonium compounds, which is comprised of an aqueous solution of a substantially water-soluble organo-lithium salt, e.g., lithium naphthenate, lithium benzoate, lithium ricinoleate, etc. The novel developers quickly remove unexposed areas of the plate and yet do not detrimentally dissolve the exposed areas of the plate.