FLUOROPOLYMER PIPE

WIPO Patent Application WO/2013/144074

A1

The present invention pertains to a pipe comprising at least one layer at least comprising, preferably consisting essentially of (or being made of), a tetrafluoroethylene (TFE) copolymer comprising from 0.8% to 2.5% by weight of recurring units derived from at least one perfluorinated alkyl vinyl ether having formula (I) here below: CF2=CF-O-Rf (I) wherein Rf is a linear or branched C3-C5 perfluorinated alkyl group or a linear or branched C3-C12 perfluorinated oxyalkyl group comprising one or more ether oxygen atoms, said TFE copolymer having a melt flow index comprised between 0.5 and 6.0 g/10 min, as measured according to ASTM D1238 at 372°C under a load of 5 Kg [polymer (F)]. The invention also pertains to use of said pipe in heat exchangers and in downhole operations including drilling operations.

JP2003503236	INDUSTRIAL APPLICABILITY: Colored polyvinyl butyral intermediate layer having improved cloudiness characteristics.
JP7007962	Heat shrinkable multilayer film
JPS62108048	WEB-SHAPED OR TUBULAR PACKAGING FILM AND MANUFACTURE THEREOF

COLAIANNA PASQUA (IT)
BESANA GIAMBATTISTA (IT)
MIRENDA MARCO (IT)
MESSINA NICASIO (IT)

PCT/EP2013/056237

October 03, 2013

March 25, 2013

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SOLVAY SPECIALTY POLYMERS IT (IT)

B32B27/30; B32B1/08; C08F214/26; F16L9/00; F16L9/147; F16L53/00; F16L55/165

WO2012019070A1	2012-02-09
WO2012163858A1	2012-12-06

US20030069343A1	2003-04-10
US6774196B1	2004-08-10
DE60021118T2	2006-05-11
US20070141285A1	2007-06-21
US20050229992A1	2005-10-20
US20070095473A1	2007-05-03

BENVENUTI, Federica et al. (Rue de Ransbeek 310, Bruxelles, BE)

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