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Chemical and gas-resistant, high-pressure, large-bore bonded flexible rubber pipe and method for producing the same

  • US 10,641,418 B2
  • Filed: 04/18/2019
  • Issued: 05/05/2020
  • Est. Priority Date: 10/21/2015
  • Status: Active Grant
First Claim
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1. A high-pressure, large-bore bonded flexible rubber pipe resistant to aggressive chemicals and gases, the flexible pipe comprising a liner made of poly(vinylidene-fluoride) homopolymer or copolymer, with at least 80 mole % of the monomeric units being vinylidene-fluoride for the copolymer and a hydrogenated nitrile rubber-based rubber compound vulcanized with peroxide, the compound having a Mooney 05, 150°

  • C. scorch time of at least 10 minutes, and the compound directly bonded to the poly(vinylidene-fluoride) liner.

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