Radiation curable, ethylenically unsaturated thixotropic agent a

Details Radiation curable, ethylenically unsaturated thixotropic agent a Radiation curable, ethylenically unsaturated thixotropic agent a

1978-12-21

1980-05-20

Newsome, John H.

Coating processes

Electrical product produced

Integrated circuit, printed circuit, or circuit board

20415922, 2604045, 260 18TN, 560 26, 560158, 427 541, B05D 306

Patent

active

042040108

ABSTRACT:
This invention relates to an ethylenically unsaturated reactive thixotropic agent for use in radiation curable compositions, e.g., overprint varnishes, formed by reacting a hydroxyl-containing fatty acid ester with an ethylenically unsaturated isocyanate. The agent not only performs its thixotropic function in the uncured state but also forms part of the cured product on exposure to radiation, e.g., UV radiation due to its substantially similar reactivity.

REFERENCES:
patent: 3183109 (1965-05-01), Neumann et al.
patent: 3781214 (1973-12-01), Nemoto et al.
patent: 3898349 (1975-08-01), Kehr et al.
patent: 3979426 (1976-09-01), DeMajistre
patent: 3991024 (1976-11-01), Nakamoto et al.

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