Benzophenone derivatives and their preparation and application

Details Benzophenone derivatives and their preparation and application Benzophenone derivatives and their preparation and application

1975-04-21

1977-08-16

Shaver, Paul F.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

96 351, 96 33, 96 88, 101456, 101463, 2604482E, 427259, C07F 708

Patent

active

040426130

ABSTRACT:
Novel benzophenone derivatives represented by the general formula R.sub.m.sup.1 --C.sub.6 H.sub.5-m --CO--C.sub.6 H.sub.5-n --R.sub.n.sup.2 where R.sup.1 is a halogen atom, a monovalent C.sub.1-10 hydrocarbon, alkoxy, thioalkoxy, amino, or dialkylamino group, R.sup.2 is an unsubstituted or organosiloxy-substituted organosilyl group, and m and n are each integers from 1 to 5. The benzophenone derivatives are useful as photosensitizers for making photo-curable compositions by blending with photo polymerizable resins, especially photopolymerizable organosilicon resins. Such photo-curable organosilicon resin compositions are further useful for making dry-planographic printing plates comprising non-image areas formed from the polymerized and cured layers of the composition.

REFERENCES:
patent: 2591736 (1952-04-01), Sommer
patent: 2938047 (1960-05-01), Black
patent: 3489781 (1970-01-01), Wilkus et al.
patent: 3715370 (1973-02-01), Wilkus et al.

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