Photocuring of unsaturated polyester/polythiol compositions

Details Photocuring of unsaturated polyester/polythiol compositions Photocuring of unsaturated polyester/polythiol compositions

1973-09-17

1976-05-25

Turer, Richard B.

Chemistry: electrical and wave energy

Processes and products

Processes of treating materials by wave energy

20415914, 20415915, 20415918, 20415923, 20415924, 260 75T, 260 75S, 260 75UA, 260 78UA, 260 78SC, 260 795C, 260857R, 260860, 260865, 526319, C08G 1800, C08G 6300

Patent

active

039591034

ABSTRACT:
A polar unsaturated polyester is photocured by irradiating (ultraviolet radiation) an admixture of a polythiol, an unsaturated polyester, and a photocuring rate accelerator. The unsaturated polyester is prepared by reacting mono- or polycarboxylic acids with mono- or polyhydric alcohols. The double bonds are furnished by any of these components. At least one of the double bonds is situated internally to the main backbone chain of the polyester. The photocure is achieved by the addition of the sulfhydryl groups of the polythiol to the reactive double bonds of the polyester.

REFERENCES:
patent: 3503940 (1970-03-01), Oswald
patent: 3513132 (1970-05-01), Edmonds
patent: 3592798 (1971-07-01), Oswald
patent: 3661744 (1972-05-01), Kehr et al.
patent: 3697622 (1972-10-01), Kehr et al.

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