Method for manufacturing of cast films at high productivity

An improved method for high productivity preparation of a polymeric film on a carrier, comprising:

• (a) preparing an aqueous dispersion comprising a film forming polymeric material;
• (b) pre-treating the carrier with a suitable fluoropolymer to reduce the surface energy of the carrier surface;
• (c) dipping the pre-treated carrier through the dispersion such that a coating of the dispersion is formed on the carrier;
• (d) passing the coated carrier through a metering device to remove excess dispersion;
• (e) drying the metered coated, pre-treated carrier to remove the water from the dispersion;
• and
• (f) heating the dried coated, pre-treated carrier to a temperature sufficient to consolidate the dispersion, wherein the carrier is formed from a material of low thermal mass having chemical and dimensional stability at the consolidation temperature of the dispersion and a work of adhesion that does not exceed the yield strength of the consolidated polymeric film.