Radiation-polymerizable mixture and process for producing a sold

Details Radiation-polymerizable mixture and process for producing a sold Radiation-polymerizable mixture and process for producing a sold

1993-10-27

1995-02-07

Rosasco, Steve

Radiation imagery chemistry: process, composition, or product th

Imaged product

Including resin or synthetic polymer

430311, 430315, 430329, G03C 300

Patent

active

053874862

ABSTRACT:
The present invention relates to a radiation-polymerizable mixture which includes a polymerizable compound, a polymeric binder which has units of methacrylic acid, a methacrylic acid ester and a styrene, the latter in a proportion of 40 to 65% by weight, a finely divided mineral pigment on a silicic acid or silicate basis, a photopolymerization initiator, a compound having at least two epoxy groups in its molecule and a thermal hardener for epoxy groups. The mixture is advantageous, in particular, for producing solder masks and can be cured after exposure to an image and development by heating to about 80.degree. to 150.degree. C. to form a stencil which is resistant under soldering conditions.

REFERENCES:
patent: 3804631 (1974-04-01), Faust
patent: 3887450 (1975-06-01), Gilano et al.
patent: 3930865 (1976-01-01), Faust et al.
patent: 4390615 (1983-06-01), Courtney et al.
patent: 4544623 (1985-11-01), Audykowski et al.

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