M&t Chemicals, Inc.

Atochem North America, Inc.

Kenneth K Tseng

Paul L Hung

A UV curable, aqueous alkaline developable solder mask composition having tenting capabilities includes a thermal free radical initiator capable of generating free radicals with heat, and a polyunsaturated compound capable of being thermally cross-linked by the free radicals to provide a substantially fully cured solder mask coating.

UV curable compositions for making tentable solder mask coating

Aqueous alkaline developable, UV curable urethane acrylate compounds and compositions are particularly useful for making flexible, 100% solids, solvent-free solder mask coatings which are characterized by having screen-printable viscosities, rapid developability and advantageous performance characteristics.

Aqueous akaline developable, UV curable urethane acrylate compounds and

A composition including a mixture of UV curable urethane acrylate and a urethane diacrylate compounds provides an aqueous alkaline developable, flexible solder mask having excellent electrical insulation resistance under hydrolytic testing conditions at elevated temperatures.

UV curable compositions for making improved solder mask coatings

An aqueous alkaline developable UV curable urethane acrylate compound and composition are used for making flexible solder mask coatings, characterized by rapid development in an aqueous, alkaline medium, and advantageous performance properties.

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Piscataway, NJ, United States of America

Kenneth K Tseng