Heat stable, non-yellowing photopolymer compositions

Details Heat stable, non-yellowing photopolymer compositions Heat stable, non-yellowing photopolymer compositions

1979-04-23

1980-10-28

Smith, Ronald H.

Coating processes

Electrical product produced

Welding electrode

20415914, 20415918, 427 44, 427 531, B05D 306, C08F 818

Patent

active

042307406

ABSTRACT:
This invention relates to heat stable, non-yellowing photopolymer compositions comprising a polythiol, a photoinitiator and a polyene of the formula: ##STR1## wherein R are all the same member of the group consisting of ##STR2## R.sub.1 is --CH.sub.3 or R, and R' is --CH.sub.3 or H. The UV cured coating resulting from this composition are non-yellowing even after baking for 15 minutes at 450.degree. F.

REFERENCES:
patent: 3020255 (1962-02-01), Magrane et al.
patent: 3499849 (1970-03-01), Sekmakas et al.
patent: 3847767 (1974-11-01), Kloczewski

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