Hardenable photoimageable compositions

G - Physics – 03 – F

Patent

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G03F 7/004 (2006.01) G03F 7/038 (2006.01) H05K 1/00 (2006.01)

Patent

CA 2238778

A negative-acting photoimageable composition comprises A) between about 30 and about 90 wt% of a binder polymer which is soluble in an appropriate developer, B) between about 5 and about 30 wt% of an epoxy resin, C) between about 0 and about 30 wt% of a polyol cross-linking agent for the epoxy resin B), and D) between about 1 and about 15 wt% of a photosensitive composition of the formula: Image where the Zs are the same or different and are selected from CX3, X, and H; the X's are the same or different halogens, and R is any chemical moiety consistent with thephotoimageable composition as a whole.

Divulgation d'une composition négative pour tirage sur matériau photosensible comprenant : A) d'environ 30 à environ 90 %, en poids, d'un liant polymère, soluble dans un agent de développement approprié; B) d'environ 5 à environ 30 %, en poids, d'une résine époxy; C) d'environ 0 à environ 30 %, en poids, d'un agent de réticulation de polyol pour la résine époxy B); et D) d'environ 1 à environ 15 %, en poids, d'une composition photosensible de formule Image , dans laquelle les Z sont identiques ou différents et sont choisis parmi CX3, X et H, les X sont des halogènes identiques ou différents, et R est n'importe quelle entité chimique compatible avec la composition pour tirage sur matériau photosensible dans son ensemble.

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