insulated pipes

insulated pipes

  • CN 101,679,594 A
  • Filed: 04/02/2007
  • Published: 03/24/2010
  • Est. Priority Date: 04/02/2007
  • Status: Active Application
First Claim
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1. the method for a discontinuous production of insulated pipes may further comprise the steps:

  • 1) provide intervalve and protecting pipe, described intervalve is installed in the protecting pipe,2) by isocyanate component (a) and polyol blends (b) prepared in reaction poly-isocyanurate between intervalve and protecting pipe,Wherein said polyol blends (b) does not contain polyesterols, and is lower than 1300mPas according to DIN 53019 20 ℃

    of viscosity that record.

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