Solid curable polyene compositions containing a polythiol

Details Solid curable polyene compositions containing a polythiol Solid curable polyene compositions containing a polythiol

1975-11-24

1977-08-30

Seccuro, Carman J.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260 775BB, 260 775CR, 260859R, 20415914, 20415915, 20415918, 428419, C08L 2908

Patent

active

040455165

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: 3338810 (1967-08-01), Warner
patent: 3661744 (1972-05-01), Kehr et al.
patent: 3809633 (1974-05-01), Magnotta et al.
patent: 3855093 (1974-12-01), Guthrie et al.
patent: 3925320 (1975-12-01), Morgan

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