Method for modifying surface properties in polyvinyl chloride sh

Details Method for modifying surface properties in polyvinyl chloride sh Method for modifying surface properties in polyvinyl chloride sh

1980-11-05

1982-01-12

Newsome, John H.

Coating processes

Electrical product produced

Integrated circuit, printed circuit, or circuit board

204169, B05D 306

Patent

active

043105645

ABSTRACT:
The undesirable phenomenon of bleeding of, for example, a plasticizer contained in a shaped article of a plasticized polyvinyl chloride resin on the surface of the article in a long-run use is effectively prevented by the inventive method and the effectiveness of the method is durable over a long period of time even when the article is used in an outdoor environment or under irradiation with ultraviolet light. The method of the invention comprises the first step of exposing the surface of the article to an atmosphere of low temperature plasma of an inorganic gas and then the second step of contacting the thus plasma-treated surface with a halogen or hydrogen halide, preferably, in gaseous state.

REFERENCES:
patent: 3870610 (1975-03-01), Baird et al.
patent: 4091166 (1978-05-01), Kubacki
patent: 4187331 (1980-02-01), Ma
patent: 4247440 (1981-01-01), Asai et al.
patent: 4265276 (1981-05-01), Hatada et al.

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