Photoinitiator compositions including amino acids, coumarin and

Details Photoinitiator compositions including amino acids, coumarin and Photoinitiator compositions including amino acids, coumarin and

1995-07-17

1998-09-22

Codd, Bernard P.

Radiation imagery chemistry: process, composition, or product th

Imaging affecting physical property of radiation sensitive...

Radiation sensitive composition or product or process of making

430919, 430921, 430924, 430925, 430926, 522 14, 522 16, 522 17, 522 20, 522 59, 522 65, 502155, 502156, 502167, 502168, G03C 1735, C08F 250

Patent

active

058112189

ABSTRACT:
An N-aryl-.alpha.-amino acid (I), which is a novel compound, is effective as a photoinitiator. The photoinitiator composition including this photoinitiator is effective for improving photosensitive properties of photosensitive materials containing poly(amic acid) and an addition polymerizable compound used for pattern formation. Further, a photoinitiator composition (A) comprising an N-aryl-.alpha.-amino acid (I) or (I'), a 3-substituted coumarin (II) and/or an azabenzalcyclohexanone (III), or a photoinitiator composition (B) comprising an N-aryl-.alpha.-amino acid (I) or (I'), a 3-substituted coumarin (II) and a titanocene (IV), or a photoinitiator composition (C) comprising a 3-substituted coumarin (II), a titanocene (IV) and an oxime ester (V), is effective for improving photosensitive properties of photosensitive materials containing poly(amic acid) and an addition polymerizable compound used for pattern formation.

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