Method of preparing adherent/coherent amorphous fluorocarbon coa

Details Method of preparing adherent/coherent amorphous fluorocarbon coa Method of preparing adherent/coherent amorphous fluorocarbon coa

1992-12-16

1999-01-26

King, Roy V.

Coating processes

Coating by vapor, gas, or smoke

Organic coating applied by vapor, gas, or smoke

4274121, 4274124, 427421, 427429, 4274301, C23C 1412, B05D 100

Patent

active

058636080

ABSTRACT:
A method for preparing a castable amorphous fluorocarbon coating upon the surface of a substrate which includes the steps of initially depositing a film of a fluorocarbon having a thickness between about 1500 .ANG. and 50,000 .ANG., and thereafter applying a second coating as a coverlay upon the initial film. Both the initial film and the castable coating consist of an amorphous fluorinated (ethylenic-cyclo oxyaliphatic substituted ethylenic) copolymer having the structural repeating unit: ##STR1## wherein "m" and "n" represent integers providing a molecular weight of between about 230,000 and 500,000, with the relative values of "m" and "n" providing a copolymer with a glass transition temperature ranging from between about 160.degree. C. and 240.degree. C.

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