Hybrid type onium salt

Details Hybrid type onium salt Hybrid type onium salt

2006-09-05

2006-09-05

Berman, Susan (Department: 1711)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Compositions to be polymerized by wave energy wherein said...

C522S025000, C522S170000, C522S181000, C430S280100, C430S281100, C568S018000

Reexamination Certificate

active

07101918

ABSTRACT:
The present invention relates to a hybrid type onium salt having an iodonium salt and a sulfonium salt in the molecule, Useful, for example, as a cationic type photopolymerization initiator and an acid generator for a chemically amplified resist and provides a hybrid type onium salt shown by the general formula [1]:and R4is an alkyl group, an alkenyl group, an aryl group or an aralkyl group, which may have a substituent selected from the group consisting of a halogen atom, an alkyl group, a haloalkyl group, an aryl group, an alkoxy group, an aryloxy group, an alkylthio group, an arylthio group and an amino group which may be substituted or a group shown by the general formula [2]:and a polymerization initiator or an acid generator, comprising said onium salt.

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Watt et al, “A Novel Photoinitiator of Cationic Polymerization: Preparation and Characterization of Bis[4-(diphenylsulfonio)phenyl]sulfide Bis-Hexafluorophosphate”, Journal of Polymer Science vol. 22, 1789-1796, 1984.

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