Patent ID: 9625061
Date: 2017-04-18
CPC Classifications: B29C,B29K,B29L,B32B,F16L,Y10T

Claim:
1. A method of forming a flexible tube, the method comprising: extruding a first layer comprising polyolefin, the first layer having a flexural modulus of not greater than 150 MPa; and coextruding with the first layer a second layer directly contacting and bonded directly to the first layer, the second layer comprising a polymer blend consisting essentially of propylenic polymer and styrenic block copolymer, the styrenic block copolymer present at an amount of 40% to 90% by weight of the blend, the blend having a loss tangent value (tan δ) at 25° C. of at least 0.1, the blend being free of plasticizer or processing aid.