Invention Grant
- Patent Title: Polypropylene compositions containing glass fiber fillers
- Patent Title (中): 含有玻璃纤维填料的聚丙烯组合物
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Application No.: US14903000Application Date: 2014-06-24
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Publication No.: US09428637B2Publication Date: 2016-08-30
- Inventor: Rainer Kohler , Michele Grazzi , Jurgen Rohrmann , Giampaolo Pellegatti
- 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: EP13175408 20130705
- International Application: PCT/EP2014/063236 WO 20140624
- International Announcement: WO2015/000738 WO 20150108
- Main IPC: C08L23/14
- IPC: C08L23/14

Abstract:
The present disclosure relates to a composition comprising: (A) 30-60% by weight of a soft polyolefin composition comprising 10-50% by weight of a copolymer (a) of propylene, which contains from 1-8% by weight of comonomer; 50-90% by weight of a copolymer (b) of ethylene and other alpha-olefin(s) and from 57-80% of ethylene; where the weight ratio of the content of copolymer component (b) to the fraction XS (soluble in xylene) at room temperature (about 25° C.), both (b and XS) referred to the total weight of (a)+(b), is 1.5 or less, and the intrinsic viscosity [η] of the XS fraction is 3 dl/g or more; and the total quantity of copolymerized ethylene is 30-65% by weight; (B) 5-30% of glass fiber filler; (C) 0.5%-3% by weight of a compatibilizer; and (D) 10-40% by weight of a polypropylene component selected from propylene homopolymers, propylene copolymers containing up to 5% by moles of ethylene and/or C4-C10 α-olefin(s) and combinations of such homopolymers and copolymers, with a MFR from 0.3 to 2500 g/10 min.
Public/Granted literature
- US20160137824A1 POLYPROPYLENE COMPOSITIONS CONTAINING GLASS FIBER FILLERS Public/Granted day:2016-05-19
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