Process of casting polymeric films

B - Operations – Transporting – 29 – D

Patent

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18/1034, 18/1048

B29D 7/01 (2006.01)

Patent

CA 1077224

ABSTRACT OF THE DISCLOSURE A method of preparing a polymeric film comprising the steps of applying a layer of solution of the polymer in a volatile solvent therefor to a support, heating the solution to evaporate at least part of the solvent and applying to the surface of the polymer layer a surfactant.

233825

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