Phosphorus-containing thermoplastic polyester and phosphorus-containing heat shrinkable sleeve prepared by the same

Phosphorus-containing thermoplastic polyester and phosphorus-containing heat shrinkable sleeve prepared by the same

  • CN 104,311,809 A
  • Filed: 09/30/2014
  • Published: 01/28/2015
  • Est. Priority Date: 10/23/2013
  • Status: Active Application
First Claim
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1. one kind is used in the phosphorous thermoplastic polyester making phosphorous thermal contraction casing tube, it is characterized in that, with bisgallic acid, two alcohol and flame retardant phosphorus element-containing for raw material synthesizes obtained through esterification and polycondensation reaction, described polyester limiting inherent viscosity is between 0.70 ~ 1.10dl/g, phosphorus element content based on the weight of polyester between 3000 ~ 30,000ppm, and its flame retardant rating reaches UL94VTM-2 standard.

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