Printed circuit cover coating comprising an ultraviolet radiatio

Details Printed circuit cover coating comprising an ultraviolet radiatio Printed circuit cover coating comprising an ultraviolet radiatio

1976-02-23

1977-12-27

Tillman, Murray

Chemistry: electrical and wave energy

Processes and products

Processes of treating materials by wave energy

20415922, 260 22CB;22XA, 427 54, C08F 246, C08L 9100

Patent

active

040653684

ABSTRACT:
A flexible photopolymerizable resin is prepared in a two-stage process by the esterification of castor oil which chlorendic anhydride to yield a chlorendic anhydride half ester and the subsequent reaction of the half ester with a reagent having acrylic functionality, a cure retardant and an acrylic functional monomer. The resultant acrylic ester evidences superior insulation resistance during aging.

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patent: 3876432 (1975-04-01), Carlick et al.
patent: 3907732 (1975-09-01), Maruyama et al.

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