Hexaarylbiimidazole compounds and photopolymerization initiator compositions containing the same
OwnerHirotoshi Kamata, Tatsuhiro Mizo +1inventors
InventorsHirotoshi Kamata, Tatsuhiro Mizo, Mina Onishi
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Abstract
The present invention provides a novel hexaarylbiimidazole compound of the following formula (1): wherein each R1 represents a halogen, and each R2 represents an optionally substituted C1-4 alkyl group. The hexaarylbiimidazole compound of the present invention is useful as photoradical generators in photopolymerizable compositions used as resists and is characterized by low sublimating thermal decomposition products. The photopolymerizable compositions may be suitably used as resists or as color filters for color liquid crystal display elements, cameras and the like.
Claims8
An hexaarylbiimidazole compound as defined by the following formula (1):
- wherein each R1 represents a halogen atom, and each R2 represents an optionally substituted C1-4 alkyl group:
A hexaarylbiimidazole compound as defined by the following formula (2):
Dependencies are inferred from the claim text.