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US 2015/0329744 A1Published application
Film for tire inner liner and method for manufacturing the same
AssigneeKolon Industries, Inc.
InventorsYoung-Han JEONG, So-Yeon KWON, Hyun NAMGOONG, Seong-Hun KIM
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Abstract
This disclosure relates to a film for an inner liner including a base film layer and an adhesive layer, the base film layer including a polyamide-based resin, a specific copolymer, and a polymer crystallization retardant, and a method for manufacturing the same.
Claims27
A film for an inner liner, comprising:
- a base film layer including a polyamide-based resin (a), a copolymer (b) including polyamide-based segments and polyether-based segments, and a polymer crystallization retardant (c);
- and an adhesive layer formed on at least one surface of the base film layer and including a resorcinol-formalin-latex (RFL)-based adhesive,
- wherein a content of the polyether-based segment of the copolymer is 2 wt % to 40 wt % based on total weight of the base film layer.
A method for manufacturing a film for an inner liner, comprising:
- forming a base film layer by melting and extruding a mixture at 230° C. to 300° C., the mixture including a polyamide-based resin (a), a copolymer (b) including polyamide-based segments and polyether-based segments, and a polymer crystallization retardant (c);
- and
- forming an adhesive layer including a resorcinol-formalin-latex (RFL)-based adhesive on at least one surface of the base film layer.
Dependencies are inferred from the claim text.