Patent · US Active

Chlorine dioxide resistant polyethylene pipes, their preparation and use

US9200136B2 · kind B2 · utility

0Cited by

11References

17Claims

0Family size

Assignee

Borealis AG · AT

Inventors

Tanja Piel · Linz, AT
Martin Anker · Karlskrona, SE
Jeroen Oderkerk · Stenungsund, SE
Per-Ola Hagstrand · Stenungsund, SE

Key dates

Filing date	Jun 21, 2010
Grant date	Dec 1, 2015
Priority date	—
Expiry date	Feb 3, 2032

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T137/0318
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

The present invention deals with the use of pipes made of cross-linked polyethylene for transporting water containing chlorine dioxide. Cross-linked polyethylene has a resistance of more than 3500 hours against water treated with chlorine dioxide when tested according to a modified method of ASTM F2263-03. Especially, the pipes made of cross-linked polyethylene can be used for transporting drinking water which had been disinfected by using chlorine dioxide.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.