POLYMER FILM

摘要

There is provided a polymer film which includes a base film layer having an absolute weight average molecular weight of 50,000 to 1,000,000 and an adhesive layer, and a method for manufacturing the polymer film. This film for a tire inner liner can endow an excellent gas barrier property even to tires having a relatively thin thickness so that weight of the tire can be reduced and fuel efficiency of automobiles can be improved. Further, the present film facilitates molding in a tire manufacturing process, and exhibits excellent adhesion force to a carcass layer while having excellent mechanical properties such as high durability and fatigue resistance together with excellent moldability.

主权项

1. A polymer film which comprises: a base film layer comprising a polyamide-based resin; and a copolymer containing a polyamide-based segment and a polyether-based segment; and
an adhesive layer formed on at least one side of the base film layer and containing a resorcinol-formalin-latex (RFL)-based adhesive, wherein the content of the polyether-based segment of the copolymer is more than 2% by weight and less than 15% by weight with respect to the total weight of the base film layer, and wherein the base film layer has an absolute weight average molecular weight of 50,000 to 1,000,000.