Patent · US Active

Polyolefin pipe with improved migration behaviour

US9522988B2 · kind B2 · utility

1Cited by

3References

15Claims

0Family size

Assignee

Borealis AG · AT

Inventors

Martin Anker · Karlskrona, SE
Svein Jamtvedt · Stathelle, NO

Key dates

Filing date	Jan 5, 2012
Grant date	Dec 20, 2016
Priority date	—
Expiry date	Jul 18, 2033

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/1393
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

A polyolefin pipe having a polyolefin base resin (A) including a lower molecular weight fraction and a higher molecular weight fraction, stabilized with at least one stabilizer (B) having a formula:and at least one stabilizer (C) having a formula:wherein the substituents are as described in the specification. The composition demonstrates acceptable stability and low migration of additional additives from the pipe.

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