摘要 |
A water-base photosensitive resin composition which has satisfactory resist properties equal or superior to those of solvent-base photosensitive resin compositions currently in commercial use and is developable with a dilute aqueous alkali solution. The composition comprises as the essential components: (a) an aqueous emulsion of a polymeric compound containing carboxyl groups; (b) a compound having a photopolymerizable ethylenically unsaturated bond; and (c) a photopolymerization initiator capable of generating free radicals upon exposure to actinic light, the component (a) having a weight average molecular weight in the range of from 1,000 to 50,000, an acid value in the range of from 40 to 140 mg-KOH/g, and a glass transition temperature in the range of from 50 to 200 DEG C.
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申请人 |
W.R. GRACE & CO. - CONN.;SAMUKAWA, HIROSHI;HAGIWARA, YOSHICHI;SAIGOU, TSUYOSHI;HALLOCK, JOHN, SCOTT;BECKNELL, ALAN, FREDERICK |
发明人 |
SAMUKAWA, HIROSHI;HAGIWARA, YOSHICHI;SAIGOU, TSUYOSHI;HALLOCK, JOHN, SCOTT;BECKNELL, ALAN, FREDERICK |