Polymeric film coating apparatus

Details Polymeric film coating apparatus Polymeric film coating apparatus

1982-11-24

1985-01-29

Childs, S. L.

Coating apparatus

Control means responsive to a randomly occurring sensed...

Temperature responsive

118667, 118690, 118692, 427 8, 4272556, B05C 1500

Patent

active

044958897

ABSTRACT:
Method and apparatus are disclosed for coating substrates with a film polymer based on p-xylylene by vapor-shaped polymerization. The apparatus monitors the monomer vapor pressure after pyrolization of the cyclic di-p-xylylene dimer, compares the measured pressure to a predetermined pressure needed to effect a completed vapor-phase polymerization reaction, and adjusts the temperature of vaporization in response to variations between measured pressure and the predetermined pressure.

REFERENCES:
patent: 3397085 (1968-08-01), Cariou et al.
patent: 3573968 (1971-04-01), Loeb et al.
patent: 3895135 (1975-07-01), Hofer
patent: 4167915 (1979-09-01), Toule et al.
patent: 4287224 (1981-09-01), Heimbach et al.
patent: 4291244 (1981-09-01), Beach et al.
patent: 4388342 (1983-06-01), Suzuki et al.
patent: 4389229 (1983-06-01), Jang et al.

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