Process for preparing catalytic solutions of sulfonium salts

Details Process for preparing catalytic solutions of sulfonium salts Process for preparing catalytic solutions of sulfonium salts

1978-05-09

1979-05-15

Turer, Richard B.

Coating processes

Electrical product produced

Integrated circuit, printed circuit, or circuit board

96115P, 20415911, 20415915, 20415918, 20415923, 20415924, 260 304EP, 260 334EP, 260830R, 260836, 260837R, 427 54, 427372R, 427386, 528 90, 528110, 528116, 528354, 528366, 528408, 528409, 528421, C08F 246, C08F 400

Patent

active

041548728

ABSTRACT:
This invention relates to a process for preparing a catalytic solution of a sulfonium salt of a complex anion, capable of yielding a Lewis Acid when irradiated by UV or high energy ionizing radiation comprising reacting a sulfonium halide with an alkali metal salt of the complex anion in a solvent mixture containing a polyol having at least two hydroxy groups and a lactone.

REFERENCES:
patent: 4026705 (1977-05-01), Crivello
patent: 4054498 (1977-10-01), Tarwid
patent: 4069056 (1978-01-01), Crivello
patent: 4080274 (1978-03-01), Schlesinger
patent: 4108747 (1978-08-01), Crivello

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