Process for preparing fluoridated surfaces of polymers

Details Process for preparing fluoridated surfaces of polymers Process for preparing fluoridated surfaces of polymers

1986-03-13

1987-10-20

Thurlow, Jeffery

Plastic and nonmetallic article shaping or treating: processes

With measuring, testing, or inspecting

264 83, 264 85, 264340, 4272481, 4272551, 4272556, 525355, 525356, B29C 4108, C08F 818, C08F 820, C08F 822

Patent

active

047012900

ABSTRACT:
A process for preparing fluoridated surfaces of polymers includes exposing the surfaces for a period of time to the influence of a fluorine containing a treatment gas of defininte proportion for forming fluoridated hydrocarbons. A small portion of the treatment gas is drawn off during the exposure period and channeled via an activated aluminum oxide contact for carrying out the reaction Al.sub.2 O.sub.3 +3F.sub.2 .fwdarw.2AlF.sub.3 +3/20.sub.2 to determine the fluorine concentration in the residual gas by means of quantitative determination of the released oxygen and therewith the degree of fluorine coating of the surface.

REFERENCES:
patent: 2811468 (1957-10-01), Joffre
patent: 3758450 (1973-09-01), Margrave et al.
patent: 4076916 (1978-02-01), Lagow
patent: 4144374 (1979-03-01), Lagow et al.

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