Method of forming a tentative surface protective coating

Details Method of forming a tentative surface protective coating Method of forming a tentative surface protective coating

1990-03-12

1992-02-04

Dixon, Jr., William R.

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

523160, 427 541, 520 1, C09D 1100, C08F 0000, B05D 306

Patent

active

050856979

ABSTRACT:
A splendid tentative surface protective coating which is useful in treating a surface of a substance by soldering or plating and which is peeled off easily from the surface after the treating is formed by preparing a solventless or solvent free type screen ink based on essentially an ultraviolet ray-curable rubbery elastomer, applying a coating of the ink on the surface of the substrate by screen printing or thin film coating, and curing the coating of the ink by irradiation with an ultraviolet ray. The tentative surface protective coating can reproduce exactly a pattern of a mask or screen, have a high chemical resistance and heat resistance, even if it has a thin thickness of 30 .mu.m, and have no afraid of deformation caused by heat curing, whereby a precise and shortened surface treatment of the surface of the substance can be afforded. Also, working environment is improved, and air conditioning equipment can be dispensed with owing to an absence or diminishment of an organic solvent. In addition, according to the present invention, an excellent ink composition is provided which is much suited to screen printing.

REFERENCES:
patent: 4164423 (1979-08-01), Schumacher et al.
patent: 4376039 (1983-04-01), Fujimoto et al.
patent: 4410562 (1983-10-01), Nemoto et al.
patent: 4929469 (1990-05-01), Kimura et al.
Drain et al., WO 88/00097, Jan. 14, 1988.

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