The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 24, 2017
Filed:
Mar. 26, 2014
Andreas Dowe, Borken, DE;
Juergen Franosch, Marl, DE;
Jan Berger, Dortmund, DE;
Claudia Behrens, Herdecke, DE;
Andreas Dowe, Borken, DE;
Juergen Franosch, Marl, DE;
Jan Berger, Dortmund, DE;
Claudia Behrens, Herdecke, DE;
EVONIK DEGUSSA GmbH, Essen, DE;
Abstract
A pipe or pipeline for use in the oil and gas industry for conveying lines, collection pipelines and transport pipelines with reduced operating risk and increased lifetime is provided. The pipe contains: a) an external reinforcement layer and b) an internal liner which comprises securely bonded to one another: I) a layer made of a thermoplastic molding composition selected from a polyolefin molding composition and a fluoropolymer molding composition and II) a layer made of a polyamide molding composition, wherein not only the polyamide molding composition but also the molding composition of the layer according to I) in essence comprises no blend component which is composed of another polymer and which has disperse distribution in the molding composition.