Coating process using dispersions of tetrafluoroethylene polymer

Details Coating process using dispersions of tetrafluoroethylene polymer Coating process using dispersions of tetrafluoroethylene polymer

1978-05-08

1978-12-26

Kendall, Ralph S.

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Web or sheet containing structurally defined element or...

Physical dimension specified

260 296F, 260900, 427379, 427385C, 427388C, 428411, 428422, B32B 904

Patent

active

041317114

ABSTRACT:
Substrates are coated with a composition comprising a low molecular weight polyethersulphone containing hydroxyl and groups and having a reduced viscosity of less than 0.25 (as measured at 25.degree. C on a solution of the polymer in dimethyl formamide containing 1 g of polymer in 100 cm.sup.3 of solution) and a fluorocarbon polymer dispersed in an aqueous medium, drying the coating and thereafter baking it in air at 420 to 450.degree. C.

REFERENCES:
patent: 2777783 (1957-01-01), Welch
patent: 3692569 (1972-09-01), Grot
patent: 3981945 (1976-09-01), Attwood
patent: 3984604 (1976-10-01), King
patent: 3992347 (1976-11-01), Vary
patent: 3993843 (1976-11-01), Vasta

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