发明名称 |
COMPOSITIONS OF 1-BUTENE BASED POLYMERS |
摘要 |
<p>A 1-butene polymer composition comprising: a) from 10% to 90% by weight of an isotactic 1-butene polymer having the following features: i) isotactic pentad (mmmm) measured by 13C-NMR, higher than 90%; ii) melting point (TmII) higher than 90°C; and iii) intrinsic viscosity (IV) measured in tetrahydronaphthalene (THN) at 135°C comprised between 0.5 dl/g and 5.0 dl/g. b) from 90% to 10% by weight of a copolymer of 1-butene and at least a C8-C12 alpha- olefin derived units, containing from 0% to 10% by mole of propylene or pentene derived units, and/or containing from 0% to 5% by mole of ethylene derived units having a content of C8-C12 alpha-olefin derived units higher than 4.0% by mol and lower than 20.0% by mol; endowed with the following features: i) isotactic pentad mmmm higher than or equal to 90 %; pentads (mmrr+mrrm) lower than 4 and pentad rmmr not detectable by C NMR. ii) intrinsic viscosity (IV) measured in tetrahydronaphthalene at 135°C comprised between 0.8 and 5.0 dL/g; iii) the melting point measured by DSC (TmI) and the C8-C12 alpha-olefin content fulfil the following relationship: TmI -0.3 wherein C is the molar content of C8-C12 alpha-olefin derived units and TmI is the highest melting peak in the first melting transition; otherwise the melting point TmI is not detectable;</p> |
申请公布号 |
WO2009115400(A1) |
申请公布日期 |
2009.09.24 |
申请号 |
WO2009EP52274 |
申请日期 |
2009.02.26 |
申请人 |
BASELL POLYOLEFINE ITALIA S.R.L;RESCONI, LUIGI;BALBONI, DAVIDE |
发明人 |
RESCONI, LUIGI;BALBONI, DAVIDE |
分类号 |
C08L23/20 |
主分类号 |
C08L23/20 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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