Invention Publication
- Patent Title: POLYOLEFINS COMPOSITIONS OBTAINED FROM RECYCLED POLYOLEFINS
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Application No.: US18013443Application Date: 2021-06-17
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Publication No.: US20230257562A1Publication Date: 2023-08-17
- Inventor: Claudio Cavalieri , Monica Galvan
- Applicant: Basell Poliolefine Italia S.r.l.
- Applicant Address: IT Milan
- Assignee: Basell Poliolefine Italia S.r.l.
- Current Assignee: Basell Poliolefine Italia S.r.l.
- Current Assignee Address: IT Milan
- Priority: EP 183310.0 2020.06.30
- International Application: PCT/EP2021/066329 2021.06.17
- Date entered country: 2022-12-28
- Main IPC: C08L23/12
- IPC: C08L23/12

Abstract:
A polypropylene composition made from or containing:
(a) 65 to 85 weight % of a crystalline propylene polymer having an amount of isotactic pentads (mmmm), measured by 13C-MNR on the fraction insoluble in xylene at 25° C. higher than 97.0 molar % and a polydispersity index ranging from 3 to 15;
(b) 5 to 25 weight % of an elastomeric copolymer of ethylene and propylene, having an amount of recurring units deriving from ethylene ranging from 30 to 70 weight % and being partially soluble in xylene at ambient temperature; wherein the fraction soluble in xylene at ambient temperature having an intrinsic viscosity value from 2 to 8 dl/g; and
(c) 5 to 25 weight % of recycled polyethylene (r-PE) having a melt flow rate (190° C./2.16 Kg) from 0.1 to 10 g/10 min,
wherein the polypropylene composition having a melt flow rate (230° C./2.16 kg) ranging from 0.1 to 3.0 g/10 min.
(a) 65 to 85 weight % of a crystalline propylene polymer having an amount of isotactic pentads (mmmm), measured by 13C-MNR on the fraction insoluble in xylene at 25° C. higher than 97.0 molar % and a polydispersity index ranging from 3 to 15;
(b) 5 to 25 weight % of an elastomeric copolymer of ethylene and propylene, having an amount of recurring units deriving from ethylene ranging from 30 to 70 weight % and being partially soluble in xylene at ambient temperature; wherein the fraction soluble in xylene at ambient temperature having an intrinsic viscosity value from 2 to 8 dl/g; and
(c) 5 to 25 weight % of recycled polyethylene (r-PE) having a melt flow rate (190° C./2.16 Kg) from 0.1 to 10 g/10 min,
wherein the polypropylene composition having a melt flow rate (230° C./2.16 kg) ranging from 0.1 to 3.0 g/10 min.
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