Patent · US Active

Process for producing pipe by biaxial elongation

US11453157B2 · kind B2 · utility

0Cited by

14References

16Claims

0Family size

Assignee

SABIC GLOBAL TECHNOLOGIES B.V. · NL

Inventors

Ajay Kumar Taraiya · Bengaluru, IN
Maria Soliman · Schalbruch, DE

Key dates

Filing date	Jan 22, 2018
Grant date	Sep 27, 2022
Priority date	—
Expiry date	Feb 9, 2039

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16L9/12
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

The invention relates to a process for producing a biaxially oriented pipe by a) forming a polyethylene composition into a tube, wherein the polyethylene composition comprises high density polyethylene (HDPE) and a second polyethylene selected from linear low density polyethylene (LLDPE), low density polyethylene (LDPE) and a combination of LLDPE and LDPE and b) stretching the tube of step a) in the axial direction and peripheral direction to obtain the biaxially oriented pipe.

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