发明名称 |
PROPYLENE-BASED COPOLYMER COMPOSITION FOR PIPES |
摘要 |
A polyolefin composition comprising: A) from 90.0 wt% to 99.0 wt%; of a copolymer of propylene with ethylene wherein: i) the content of ethylene derived units is comprised between 1.0 wt% and 8.0 wt%; (ii) the melting temperature ranges from 135° C to 155° C; (iii) the melt flow rate (230°C/5 kg.. ISO 1133) ranging from 0.2 g/10min to 3.5 g/10min; (iv) the xylene solubles at 25°C ranges from 20.0 wt% to 4.0wt%; (v) the polydispersity, PI, ranges from 3.0 to 7.0; B) from 1.0 wt% to 10.0 wt%; of a propylene, ethylene copolymer composition comprising: b1) from 12 wt% to 52 wt%; of a propylene homopolymer or a propylene/ethylene copolymer; b2) from 48 wt% to 88 wt% of a propylene ethylene copolymer having a content of ethylene derived units ranging from 15.0 wt% to 42.0 wt%. |
申请公布号 |
WO2015180918(A1) |
申请公布日期 |
2015.12.03 |
申请号 |
WO2015EP59241 |
申请日期 |
2015.04.28 |
申请人 |
BASELL POLIOLEFINE ITALIA S.R.L. |
发明人 |
GALVAN, MONICA;TISI, FRANCESCA;PELLEGATTI, GIAMPAOLO;BOLOGNESI, SANDRO;NEUMANN, ANDREAS |
分类号 |
C08L23/12;C08L23/14 |
主分类号 |
C08L23/12 |
代理机构 |
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代理人 |
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地址 |
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