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.

Date of Patent:
Apr. 03, 2012

Filed:

Nov. 19, 2010
Applicants:

Kiyoshi Murata, Tokyo, JP;

Takeo Oishi, Tokyo, JP;

Koichi Kimijima, Tokyo, JP;

Inventors:

Kiyoshi Murata, Tokyo, JP;

Takeo Oishi, Tokyo, JP;

Koichi Kimijima, Tokyo, JP;

Assignee:

Adeka Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03F 7/00 (2006.01); G03F 7/004 (2006.01); G03F 7/028 (2006.01); C07C 69/16 (2006.01); C07C 321/30 (2006.01);
U.S. Cl.
CPC ...
Abstract

A novel compound is a highly-sensitive photopolymerization initiator with excellent stability, low sublimability, excellent developability, and high transmittance in the visible region. It efficiently absorbs, and is activated by, near-ultraviolet rays such as at 365 nm. Also provided are a photopolymerization initiator and a photosensitive composition using such compound. An oxime ester compound is represented by the following general formula (I), a photopolymerization initiator containing the same, and a photosensitive composition containing the photopolymerization initiator and a polymerizable compound having an ethylenically unsaturated bond: Rand Reach represent R, COR, CONRR, CN, etc.; R, R, and Reach represent a Calkyl group, etc.; Rand Reach represent R, OR, COR, CONRR, OCOR, CN, a halogen atom, etc.; a and b each represent an integer 0-4; X represents an oxygen atom, a sulfur atom, etc.; and Rrepresents OH, COOH, or a group represented by general formula (II).


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