Method of manufacturing antistatic polyester film

Details Method of manufacturing antistatic polyester film Method of manufacturing antistatic polyester film

1991-09-03

1993-09-28

Bell, Janyce

Coating processes

With stretching or tensioning

Running lengths

427172, 427302, 427316, 4273935, 4274125, B05D 312

Patent

active

052485226

ABSTRACT:
A method for manufacturing a polyester film is disclosed which comprises a polyester film before completion of orienting crystalization and, provided thereon, a sublayer comprising a copolymer containing 70 to 99.5 wt % of vinylidene chloride, and an antistatic layer comprising an ionic polymer, in that order. A coating solution is coated on the polyester film to form the sublayer with a dry thickness of 1 to 20 g/m.sup.2. The total solid content of the coating solution is not less than 4 wt %, and the coating solution contains a latex of the copolymer with an average particle size of 0.05 to 0.3 .mu.m. Heat is applied at a temperature not less than 30.degree. higher than the melting point of the copolymer, and the antistatic layer is formed on the sublayer.

REFERENCES:
patent: 4048357 (1977-09-01), VonPaesschen et al.
patent: 4066820 (1978-01-01), Kelly et al.
patent: 4087574 (1978-05-01), Yamaguchi et al.
patent: 4576981 (1986-03-01), Hilger et al.

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