	US 11,834,529 B2
	Long-chain branched propylene polymer composition
Jingbo Wang, Linz (AT); Markus Gahleitner, Linz (AT); Klaus Bernreitner, Linz (AT); Katja Ellen Klimke, Linz (AT); and Friedrich Berger, Linz (AT)
Assigned to Borealis AG, Vienna (AT)
Appl. No. 17/623,657
Filed by BOREALIS AG, Vienna (AT)
PCT Filed Jun. 19, 2020, PCT No. PCT/EP2020/067136 § 371(c)(1), (2) Date Dec. 29, 2021, PCT Pub. No. WO2021/001175, PCT Pub. Date Jan. 7, 2021.
Claims priority of application No. 19184437 (EP), filed on Jul. 4, 2019.
Prior Publication US 2022/0251256 A1, Aug. 11, 2022
Int. Cl. C08F 110/06 (2006.01)

CPC C08F 110/06 (2013.01) [C08F 2810/10 (2013.01)]

5 Claims

1. A propylene polymer composition comprising a long chain branched propylene polymer, wherein said propylene polymer composition has

a) a melt flow rate MFR₂(230° C., 2.16 kg) of 0.8 to 6.0 g/10 min,

b) a xylene hot insolubles (XHU) fraction in an amount of not more than 0.80 wt %, based on the total weight amount of the propylene polymer composition,

c) a melting temperature Tm of at least 160.0° C.,

d) a F30 melt strength of from 5.0 to less than 30.0 cN, and

e) a heat distortion temperature (HDT) of at least 108° C.