Solid radiation curable polyene compositions containing liquid p

Details Solid radiation curable polyene compositions containing liquid p Solid radiation curable polyene compositions containing liquid p

1975-11-24

1977-04-12

Turer, Richard B.

Chemistry: electrical and wave energy

Processes and products

Processes of treating materials by wave energy

96 351, 96 362, 20415914, 260 775CR, 260 775BB, 260 795C, 260859R, 260874, 427 54, 428419, 428425, 428901, C08F 818, C08F 834

Patent

active

040173712

ABSTRACT:
Novel styrene-allyl alcohol copolymer based solid polyene compositions which when mixed with liquid polythiols can form solid curable polyene-polythiol systems. These solid polyenes, containing at least two reactive carbon-to-carbon unsaturated bonds, are urethane or ester derivatives of styrene-allyl alcohol copolymers. The solid polyenes are prepared by treating the hydroxyl groups of a styrene-allyl alcohol copolymer with a reactive unsaturated isocyanate, e.g., allyl isocyanate or a reactive unsaturated carboxylic acid, e.g., acrylic acid. Upon exposure to a free radical generator, e.g., actinic radiation, the solid polyene-polythiol compositions cure to solid, insoluble, chemically resistant, cross-linked polythioether products. Since the solid polyene-liquid polythiol composition can be cured in a solid state, such a curable system finds particular use in preparation of coatings, imaged surfaces such as photoresists, particularly solder-resistant photoresists, printing plates, etc.

REFERENCES:
patent: 2894938 (1959-07-01), Chapin et al.
patent: 3662023 (1972-05-01), Kehr et al.
patent: 3694415 (1972-09-01), Honda et al.
patent: 3925320 (1975-12-01), Morgan

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