Biaxially oriented pipe
AssigneeSabic Global Technologies B.V.
InventorsAjay Kumar Taraiya, Maria Soliman, Peter Degenhart, Mark Johannes Boerakker, Henrica Norberta Alberta Maria Steenbakkers-Menting
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Abstract
The invention relates to a biaxially oriented pipe made of a polymer composition comprising a propylene-based polymer, wherein the propylene-based polymer comprises a random copolymer of propylene and a comonomer which is ethylene and/or an a-olefin having 4 to 10 carbon atoms, wherein the propylene-based polymer has a comonomer content of 0.5 to 3.8 wt % based on the propylene-based polymer.
Claims19
A biaxially oriented pipe made of a polymer composition comprising a propylene-based polymer, wherein the propylene-based polymer comprises a random copolymer of propylene and a comonomer which is ethylene and/or an α-olefin having 4 to 10 carbon atoms, wherein the propylene-based polymer has a comonomer content of 0.1 to 3.8 wt % based on the propylene-based polymer, wherein the pipe has a time to failure of at least 100 hours according to ISO 1167-1 determined at a stress level of 20 MPa and a temperature of 20° C.
Dependencies are inferred from the claim text.