Process for surface finishing insoluble plastics

Details Process for surface finishing insoluble plastics Process for surface finishing insoluble plastics

1980-01-07

1981-11-24

Silverberg, Sam

Plastic and nonmetallic article shaping or treating: processes

Treating shaped or solid article

Solvent polishing type

427335, 427444, B29C 2500

Patent

active

043024181

ABSTRACT:
A fluid medium is used in a process for polishing all surfaces of plastic components made of a material which is insoluble or inert within that fluid medium unless subjected to a temperature at which the insoluble plastic would deform. The process, which is particularly suitable for polishing the internal surfaces of tubing components for medical equipment, includes applying a vaporized solvent at an elevated pressure to liquify or melt the insoluble plastic component surfaces without deforming the component, followed by solidifying or freezing the surfaces by removing the component from the presence of the vapors.

REFERENCES:
patent: 2294479 (1942-09-01), Peter
patent: 3020661 (1962-02-01), Miller
patent: 3684553 (1972-08-01), Van Dyk
patent: 3807054 (1974-04-01), Joseph
patent: 3936584 (1976-02-01), Patton

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