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:
Dec. 30, 1997
Filed:
Jun. 10, 1996
Minoru Yokoshima, Toride, JP;
Tetsuo Ohkubo, Ube, JP;
Kazunori Sasahara, Shimonoseki, JP;
Yoneji Sato, Hachioji, JP;
Yoko Baba, Akigawa, JP;
Nippon Kayaku Kabushiki Kaisha, Tokyo, JP;
Nippon Polytech Corp., Hachioji, JP;
Abstract
There is disclosed a photo-imaging resist ink containing (A) an unsaturated group-containing polycarboxylic acid resin which is a reaction product of (c) succinic anhydride with an additive reaction product of (a) an epoxy resin with (b) an unsaturated group-containing monocarboxylic acid, wherein (a) the epoxy resin is represented by the following formula (1): ##STR1## wherein M stands for ##STR2## n is at least 1 on the average; and m is 1 to n on the average. The resist ink is excellent in developability and photosensitivity, while the cured product thereof is excellent in flex resistance and folding resistance, and well satisfactory in adhesion, pencil hardness, solvent resistance, acid resistance, heat resistance, etc.