Multilayer flexible tubing

Multilayer flexible tubing

  • CN 102,186,669 B
  • Filed: 10/30/2009
  • Issued: 11/25/2015
  • Est. Priority Date: 10/31/2008
  • Status: Active Grant
First Claim
Patent Images

1. a flexible pipe, comprising:

  • Ground floor, this ground floor comprises a kind of polyolefine material with the flexural modulus being not more than 150MPa;

    AndThe second layer, this second layer to be directly bonded on this ground floor and directly to contact with it, this second layer comprises a kind of blend of acronal and SBC, wherein said SBC exists with the value by weight in 30% to 80% scope of described blend polymer, and wherein this blend presents the loss tangent (tan δ

    ) of at least 0.1 and has in 40 Shore A levels to the hardness within the scope of 90 Shore A levels at 25 DEG C;

    Wherein this acronal has the melt flow index in 0.1dg/min to 35dg/min scope, and this SBC has the melt flow index of at least 0.5dg/min.

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