发明名称 |
PROCESS FOR PREPARING HIGHLY STEREO REGULAR POLYMERS OR COPOLYMERS OF '-OLEFINS AINING AT LEAST THREE CARBON ATOMS, AND CATALYSTS USED THEREFOR |
摘要 |
<p>Highly stereoregular polymers or copolymers of .alpha.-olefins containing at least 3 carbon atoms are prepared in high yields by polymerizing or copolymerizing the .alpha.-olefins in the presence of a catalyst composed of (a) an improved solid transition metal catalyst component prepared by reacting (1) a magnesium-containing reaction product derived from a member of the group consisting of (i) a magnesium halide, (ii) an active hydrogen-containing compound, (iii) an organic acid ester and (iv) a silicon or tin compound containing at least one halogen atom or hydrocarbon group bonded directly to silicon or tin with (2) (a) titanium compound, and(b) an organometallic compound of a metal selected from aluminum, magnesium and zinc. The novel catalyst affords polymers and copolymers of .alpha.-olefins with at least 3 carbon atoms having more improved stereoregularity in high yields, and can be prepared without the need for the time-consuming mixingpulverizing means.</p> |
申请公布号 |
CA1077012(A) |
申请公布日期 |
1980.05.06 |
申请号 |
CA19760245714 |
申请日期 |
1976.02.13 |
申请人 |
MITSUI PETROCHEMICAL INDUSTRIES, LTD. |
发明人 |
TOYOTA, AKINORI;ODAWARA, KIYOSHI;KASHIWA, NORIO |
分类号 |
C08F4/00;C08F4/02;C08F4/60;C08F4/64;C08F10/00;(IPC1-7):08F4/02;08F10/06 |
主分类号 |
C08F4/00 |
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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