Patent ID: 11938703
Assignee: NIKE, INC.
Field: nan (nan)
Classification: CPC nan | IPC B

Claim 0:
1. A method for producing a multi-layered film, the method comprising:
co-extruding a gas-barrier material and elastomeric material to form a multi-layered film having a core region that comprises:
at least 20 gas-barrier layers each comprising the gas-barrier material and each having an average thickness in a range of from about from about 0.01 micrometers to about 0.75 micrometers; and
a plurality of elastomeric layers alternating with the at least 20 gas-barrier layers, wherein each of the plurality of elastomeric layers comprises the elastomeric material and each has an average thickness ranging from about 2 micrometers to about 8 micrometers;
wherein the core region has a gas transmission rate of from about 0.3 to about 1.9 cubic centimeters per square meter per day for nitrogen measured at 23 degrees Celsius and 0 percent relative humidity for a structure having a thickness of from about 72 micrometers to about 320 micrometers; and
wherein the multi-layered film does not exhibit crazing or cracking after at least 350,000 KIM cycles.