Fluoropolymer pipe

Fluoropolymer pipe

  • CN 104,245,300 A
  • Filed: 03/25/2013
  • Published: 12/24/2014
  • Est. Priority Date: 03/26/2012
  • Status: Active Application
First Claim
Patent Images

1. comprise a pipe for the layer that at least one is made up of tetrafluoroethene (TFE) copolymer [polymer (F)], this tetrafluoroethene (TFE) copolymer is made up of the following substantially:

  • -by weight from 1.2% to 2.5%, preferably by weight from 1.4% to 2.2% the repetitive derived from least one with the perfluoroalkyl vinyl ether of following formula (I);

    CF 2

    CF-O-R f(I) Wherein R ffor straight chain or the C of side chain 3-C 5perfluoroalkyl or comprise one or more ether oxygen atom straight chain or the C of side chain 3-C 12perfluorooxyalkyl, and -by weight from 97.5% to 98.8%, more preferably by weight from 97.8% to 98.6% the repetitive derived from TFE,Described TFE copolymer has as measured under 372 DEG C of loads at 5Kg according to ASTM D 1238, be included in the melt flow index between 0.5 and 6.0g/10min, and be included in the fusing point between 311 DEG C and 321 DEG C, preferably between 311 DEG C and 318 DEG C.

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