Radiation polymerizable esters

Details Radiation polymerizable esters Radiation polymerizable esters

1975-02-10

1976-12-07

Turer, Richard B.

Chemistry: electrical and wave energy

Processes and products

Processes of treating materials by wave energy

96 351, 96115P, 20415922, 20415924, 260 47EP, 260 47UA, 260 47UP, 260 51EP, 260 53EP, 2603475, 260348A, 260476R, 260469, 260486R, 260829, 260837R, 427 53, 427 54, 428416, 428418, C08F 246, C08F 400

Patent

active

039961214

ABSTRACT:
The products, which are based on polyepoxide, polymerize on exposure to actinic radiation and are useful in the preparation of printing plates for offset printing and of printed circuits, particularly multilayer circuits. They are formed by coupling two molecules of a polyepoxide by means of a dihydric phenol which contains a chalcone or chalcone-like grouping, such as 1,3-bis(p-hydroxyphenyl)prop-1-en-3-one or 1,5-bis(p-hydroxyphenyl) penta-1,4-dien-3-one, so sensitizing the material to the radiation, and then, to achieve polymerizability, ring-opening at least some of the residual epoxide groups so as to incorporate olefinic acyloxy groups (R.sup.6 CH=C(R.sup.5)COO-), such as sorboyl groups.

REFERENCES:
patent: 3808114 (1974-04-01), Tsuchihara et al.
patent: 3876432 (1975-04-01), Corlick et al.
patent: 3882187 (1975-05-01), Taniyama et al.
patent: 3936366 (1976-02-01), Green

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