Invention Grant
- Patent Title: Polypropylene composition and thermoformed sheet thereof
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Application No.: US15741794Application Date: 2016-07-14
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Publication No.: US11560469B2Publication Date: 2023-01-24
- Inventor: Philippe Lodefier , Marc Dufrenoy , Julie Dubuisson , Amélie Buffard , Cristo Boukalidis
- Applicant: Total Research & Technology Feluy
- Applicant Address: BE Seneffe
- Assignee: Total Research & Technology Feluy
- Current Assignee: Total Research & Technology Feluy
- Current Assignee Address: BE Seneffe
- Agency: Amster, Rothstein & Ebenstein LLP
- Priority: EP15177076 20150716
- International Application: PCT/EP2016/066727 WO 20160714
- International Announcement: WO2017/009409 WO 20170119
- Main IPC: C08L23/14
- IPC: C08L23/14 ; C08J3/00 ; C08J5/18 ; B29C51/02 ; B29K23/00 ; B29K105/00

Abstract:
The present invention relates to a polypropylene composition for thermoforming comprising: from 50% by weight to at most 90% by weight of a polypropylene A, wherein polypropylene A is a polypropylene random copolymer, based on the total weight of the polypropylene composition; and from 10% by weight to at most 50% by weight of a polypropylene B, wherein polypropylene B is a polypropylene homopolymer, based on the total weight of the polypropylene composition; wherein the melt flow index of polypropylene B is at most 1.0 g/10 min, as measured according to the method of standard ISO 1133, condition M, at 230° C. and under a load of 2.16 kg; and wherein the ratio of the melt flow index of polypropylene A to the melt flow index of polypropylene B is at least 80.
Public/Granted literature
- US20180201771A1 Polypropylene Composition and Thermoformed Sheet Thereof Public/Granted day:2018-07-19
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