Photopolymerizable screen printing inks for permanent coatings p

Details Photopolymerizable screen printing inks for permanent coatings p Photopolymerizable screen printing inks for permanent coatings p

1974-05-24

1977-01-18

Lee, Lester L.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 49, 427 98, 427375, 427385R, 526303, 526304, 526306, 526307, 526320, 526322, 526328, 526333, C09D 1110

Patent

active

040038777

ABSTRACT:
Highly durable coatings are formed by the photopolymerization of screen printing inks containing aryloxyalkyl acrylate monomers or prepolymers, a polymerizable diluent and a free-radical initiating system, such inks having a viscosity of 5,000 to 200,000 centipoises and a thixotropic index of from 1 to 6. The photopolymerizable inks are useful for coating substrates, such as printed circuits, and serve as solder masks and resists for electroless plating, electroplating and etching.

REFERENCES:
patent: 3539533 (1970-11-01), Lee et al.
patent: 3772062 (1973-11-01), Shur et al.

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