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. 07, 2000
Filed:
Jun. 26, 1998
Applicant:
Inventors:
Assignee:
Showa Denko K.K., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03C / ;
U.S. Cl.
CPC ...
4302811 ; 430910 ; 430914 ;
Abstract
An ultraviolet and/or visible light curing photopolymerizable composition comprising as essential components: (a) a thermoplastic polymer obtained by copolymerization of at least one monomer selected from among .alpha.,.beta.-unsaturated carboxyl group-containing monomers and another monomer, (b) a crosslinking monomer with at least two ethylenic unsaturated groups per molecule and (c) an ultraviolet and/or visible light polymerization initiator comprising a quaternary boron salt and a sensitizing dye, as well as a dry film resist containing the composition as its main component.