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:
Mar. 02, 2010
Filed:
Nov. 02, 2007
Tomohiro Etou, Ichihara, JP;
Eiji Watanabe, Ichihara, JP;
Ryouta Mineo, Ichihara, JP;
Chisso Corporation, Osaka, JP;
Abstract
The invention provides an alkali soluble polymer including a specific vinylketone phenol and a derivative thereof as radical polymerizable monomers and a positive working photosensitive resin composition containing the alkali soluble polymer and a photosensitizing agent. According to the invention, there can be provided an alkali soluble resin having high solvent resistance, high water resistance, high acid resistance, high alkali resistance, high thermal resistance, high transparency, excellent adhesiveness with a substrate, and the like and useful for the formation of a patterned resin film obtained by developing in an aqueous alkali solution and a positive working photosensitive resin composition including such an alkali soluble resin.