Patent ID: 6290818
Filing Date: 2001-09-18
Classification: D21F,Y10S

Abstract:
A resin-coated endless belt for a long nip press or calender, or for other papermaking and paper-processing applications, said resin-coated endless belt comprising:a base, said base being a polymeric film structure in the form of an endless loop with an inner surface, an outer surface, a longitudinal direction and a transverse direction, said polymeric film structure having a plurality of perforations and having unperforated intervals between said perforations wherein polymeric molecules of said polymeric film structure are oriented in one of said longitudinal and transverse directions, whereby said polymeric film structure is tenacious and resists dimensional changes in said one of said longitudinal and transverse directions; anda coating of a polymeric resin material on at least said inner surface of said base, said coating rendering said base impermeable to liquids and passing through said perforations whereby a mechanical interlock between said base and said coating is formed, said coating being smooth and providing said belt with a uniform thickness.