Acetals which act as photoinitiators

Details Acetals which act as photoinitiators Acetals which act as photoinitiators

1975-03-10

1977-02-08

Milestone, Norma S.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260590D, 2603478, 20415923, 96 351, C07D30908

Patent

active

040072096

ABSTRACT:
The invention relates to special acetals of benzoin compounds which act as photoinitiators, and to a technically simple manufacturing process involving the reaction of an appropriate .alpha.- or .beta.-hydroxyketone with an .alpha.,.beta.-olefinically unsaturated ether in the presence of an acid catalyst. The acetals are particularly suitable for use as photoinitiators in the preparation of photopolymer printing plates.

REFERENCES:
patent: 2541747 (1951-02-01), Copelin
H. G. Heine et al., Angew. Chem. internat. Edit., vol. 11 (1972) No. 11, pp. 974-978.
A. C. Ott et al., Jour. Am. Chem. Soc., vol. 74 (1952) pp. 1239-1241.

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