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:
Oct. 24, 1995
Filed:
Aug. 26, 1994
Fuji Photo Film Co., Ltd., Tokyo, JP;
Abstract
A positive working photosensitive lithographic printing plate comprising a support having thereon a photosensitive layer comprising a positive photosensitive composition, wherein the positive photosensitive composition comprises a mixture of (a) a phenol derivative, (b) a water-soluble and aqueous alkali-soluble resin, and (c) o-quinonediazide or a mixture of a compound capable of forming an acid on exposure and a compound having at least one C--O--C group which is decomposable with an acid, and wherein the phenol derivative is a mixture of a compound represented by the following formula (I) and a compound represented by the following formula (II): ##STR1## wherein X.sup.1, X.sup.2, X.sup.3, X.sup.4, X.sup.5 and X.sup.6 are the same or different and each represents --CH.sub.2 OH or a hydrogen atom, provided that at least three of them are each --CH.sub.2 OH; ##STR2## wherein Y.sup.1, Y.sup.2, Y.sup.3, Y.sup.4, Y.sup.5 and Y.sup.6 are the same or different and each represents --CH.sub.2 OCH.sub.3, --CH.sub.2 OH or a hydrogen atom, provided that at least three of them are each --CH.sub.2 OCH.sub.3 or --CH.sub.2 OH, and at least one of the three is --CH.sub.2 OCH.sub.3.