发明名称 |
SOFT POLYOLEFIN COMPOSITIONS AND HIGHLY FILLED COMPOUNDS THEREOF |
摘要 |
Flexible polyolefin compositions with improved balance of properties particularly for applications where softness and ductility at low temperature is requested comprising: A) from 20 to 40% by weight of a crystalline polymer fraction consisting of a propylene homopolymer, or a copolymer of propylene, or mixtures thereof, said crystalline fraction having a xylene insoluble fraction at 25°C of at least 90% by weight,. B) from 60 to 80 % by weight of an elastomeric fraction consisting of a copolymeror blend of copolymers of propylene with one or more alpha-olefins, and optionally with minor quantities of a diene; said copolymer or blend containing ethylene in a quantity lower than 40% by weight. the fraction soluble in xylene at 25°C of said polyolefin composition having IVgpc lower than 2.5 dl/g, Mw/Mn (GPC) equal to or higher than 4, Mz/Mw (GPC) equal to or higher than 2.5. Said polyolefin composition optionally further comprising an inorganic filler (II) selected from flame-retardant inorganic fillers and inorganic oxides or salts. |
申请公布号 |
WO2012152802(A1) |
申请公布日期 |
2012.11.15 |
申请号 |
WO2012EP58476 |
申请日期 |
2012.05.09 |
申请人 |
BASELL POLIOLEFINE ITALIA S.R.L.;GOBERTI, PAOLO;PELLEGATTI, GIAMPAOLO;LUNGHI, LUCA |
发明人 |
GOBERTI, PAOLO;PELLEGATTI, GIAMPAOLO;LUNGHI, LUCA |
分类号 |
C08L23/10;C08K3/00;C08L23/16 |
主分类号 |
C08L23/10 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|