	US 12,083,732 B2
	Biaxially oriented pipe
Ajay Kumar Taraiya, Maastricht (NL); Maria Soliman, Selfkant (DE); and Peter Degenhart, Echt (NL)
Assigned to SABIC GLOBAL TECHNOLOGIES B.V., Bergen op Zoom (NL)
Appl. No. 17/764,788
Filed by SABIC GLOBAL TECHNOLOGIES B.V., Bergen op Zoom (NL)
PCT Filed Oct. 2, 2020, PCT No. PCT/EP2020/077666 § 371(c)(1), (2) Date Mar. 29, 2022, PCT Pub. No. WO2021/064178, PCT Pub. Date Apr. 8, 2021.
Claims priority of application No. 19201567 (EP), filed on Oct. 4, 2019.
Prior Publication US 2022/0371262 A1, Nov. 24, 2022
Int. Cl. B29C 55/26 (2006.01); B29C 55/00 (2006.01); B29K 23/00 (2006.01); F16L 9/12 (2006.01)

CPC B29C 55/26 (2013.01) [B29C 55/005 (2013.01); B29K 2023/08 (2013.01); B29K 2023/12 (2013.01); B29K 2023/16 (2013.01); F16L 9/12 (2013.01)]

15 Claims

1. A biaxially oriented pipe made of a polymer composition comprising a propylene-based polymer, wherein the propylene-based polymer comprises

A) a heterophasic propylene copolymer, wherein the heterophasic propylene copolymer consists of

(a1) a propylene-based matrix,

wherein the propylene-based matrix consists of a propylene homopolymer and/or a propylene copolymer consisting of at least 70 wt % of propylene monomer units and at most 30 wt % of ethylene and/or α-olefin monomer units, based on the total weight of the propylene-based matrix and

(a2) a dispersed ethylene-α-olefin copolymer,

wherein the sum of the total amount of propylene-based matrix and total amount of the dispersed ethylene-α-olefin copolymer in the heterophasic propylene copolymer is 100 wt %,

wherein the amount of (a2) with respect to the propylene-based polymer is 2.0 to 30.0 wt %.