Back to results
US 9,540,506 B2Granted
Random propylene copolymer for bottles with good optical properties
AssigneeBorealis AG
InventorsMarkus Gahleitner, Katja Klimke, Klaus Bernreitner, Martina Sandholzer
Life of this patent
Estimating the term…
Abstract
Propylene copolymer having a melt flow rate MFR2 (230° C.) in the range of more than 1.0 to below 2.5 g/10 min, a xylene cold soluble content (XCS) in the range of 25.0 to 35.0 wt.-%, a comonomer content in the range of more than 7.5 to 12.0 wt.-%, wherein further the xylene cold soluble (XCS) fraction of the propylene copolymer has comonomer content in the range of 16.0 to 28.0 wt.-% and an intrinsic viscosity (IV) in the range of more than 1.2 to below 2.5 dl/g.
Claims17
A propylene copolymer having:
- (a) a melt flow rate MFR2 (230° C.) measured according to ISO 1133 in the range of more than 1.0 to below 2.5 g/10 min,
- (b) a xylene cold soluble content (XCS) determined according to ISO 16152 (25° C.) in the range of 25.0 to 35.0 wt. %, based on the total amount of the propylene copolymer, and
- (c) a comonomer content in the range of more than 7.5 to 12.0 wt. %, based on the total amount of the propylene copolymer,
- wherein further;
- (d) the comonomer content of xylene cold soluble (XCS) fraction of the propylene copolymer is in the range of 16.0 to 28.0 wt. %, based on the total weight of the xylene cold soluble (XCS) fraction, and
- (e) the intrinsic viscosity (IV) determined according to DIN ISO 1628/1 (in decalin at 135° C.) of the xylene cold soluble (XCS) fraction of the propylene copolymer is in the range of more than 1.2 to below 2.5 dl/g.
3 more elements
A propylene copolymer having:
- (a) a melt flow rate MFR2 (230° C.) measured according to ISO 1133 in the range of more than 1.0 to below 2.5 g/10 min,
- (b) a xylene cold soluble content (XCS) determined according to ISO 16152 (25° C.) in the range of 25.0 to 35.0 wt. %, based on the total amount of the propylene copolymer, and
- (c) a comonomer content in the range of more than 7.5 to 12.0 wt. %, based on the total amount of the propylene copolymer,
- wherein further;
- (d) the comonomer content of xylene cold soluble (XCS) fraction of the propylene copolymer is in the range of 16.0 to 28.0 wt. %, based on the total amount of the xylene cold soluble (XCS) fraction, and
- (e) the xylene cold insoluble (XCI) fraction of the propylene copolymer has a polydispersity (Mw/Mn) of more than 4.9 to 10.0.
3 more elements
Dependencies are inferred from the claim text.