发明名称 |
Propylene copolymer, polypropylene composition, and uses thereof, transition metal compounds and catalyst for olefin polymerization |
摘要 |
A propylene/1-butene random copolymer containing 60 to 90 mol % of propylene units and 10 to 40 mol % of 1-butene units and has a triad isotacticity of not less than 85% and not more than 97.5%, a molecular weight distribution of from 1 to 3, an intrinsic viscosity of from 0.1 to 12 dl/g, a melting point of from 40 to 75° C. and a crystallization rate at 45° C. of 10 minutes or less, and satisfying the following relation, 146 exp (-0.022M)>=Tm>=125 exp (-0.032M), and an olefin catalyst for preparation thereof.
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申请公布号 |
US7488789(B2) |
申请公布日期 |
2009.02.10 |
申请号 |
US20030550017 |
申请日期 |
2003.12.26 |
申请人 |
MITSUI CHEMICALS, INC. |
发明人 |
IKENAGA SHIGENOBU;OKADA KEIJI;HOYA HIROSHI;INOUE NORIHIDE;HIROTA NARITOSHI;KANEYOSHI HIROMU;FUNAYA MUNEHITO;KAWAI KOJI;KAWAHARA NOBUO;KOJOH SHINICHI;KASHIWA NORIO;MORI RYOJI |
分类号 |
C08F210/06;C08F4/64;C08F4/6592;C08F210/08;C08L23/14 |
主分类号 |
C08F210/06 |
代理机构 |
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地址 |
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