Aqueous soldermask

Radiation imagery chemistry: process – composition – or product th – Imaging affecting physical property of radiation sensitive... – Radiation sensitive composition or product or process of making

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Details

522 31, 522 86, 522166, 522170, G03C 1725

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active

054397790

ABSTRACT:
The present invention provides a photoimageable soldermask that may be applied using aqueous solvents, thereby reducing the emission of organic solvents. The soldermask contains an epoxy based resin system comprised of at least one epoxy resin, a coating agent, and preferably a cationic photoinitiator and a dye.

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