发明名称 |
Olefin copolymers and processes for preparing same. |
摘要 |
The present invention provides a propylene random copolymer comprising structural units (a) derived from propylene and structural units (b) derived from an alpha -olefin of 4 to 20 carbon atoms, and having (i) the structural units (a) in an amount of 90 to 99 mol% and the structural units (b) in an amount of 1 to 10 mol%, (ii) an intrinsic viscosity [ eta ] as measured in decaline at 135 DEG C of 0.5 to 6 dl/g, (iii) a melting point [Tm] as measured by a differential scanning calorimeter falling within the range of 90 < Tm < 155 - 3.5 (100 - P) wherein P is the propylene content (mol%) present in the copolymer, (iv) a ratio (Mw/Mn) of a weight average molecular weight (Mw) to a number average molecular weight (Mn) as measured by gel permeation chromatography of less than 3.5, and (v) a boiling trichloroethylene-insoluble content of less than 5% by weight. |
申请公布号 |
EP0685498(A1) |
申请公布日期 |
1995.12.06 |
申请号 |
EP19950202089 |
申请日期 |
1989.12.21 |
申请人 |
MITSUI PETROCHEMICAL INDUSTRIES, LTD. |
发明人 |
TSUTSUI, TOSHIYUKI, C/O MITSUI PETROCHEM. IND, LTD;TOYOTA, AKINORI, C/O MITSUI PETROCHEM. IND, LTD |
分类号 |
C08F4/64;C08F4/642;C08F4/659;C08F4/6592;C08F10/00;C08F10/06;C08F110/06;C08F210/06;C08F210/08;C08F210/16 |
主分类号 |
C08F4/64 |
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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