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1. 发明授权

US5854354A Process for preparing propylene polymer composition and propylene polymer composition 失效
标题翻译：制备丙烯聚合物组合物和丙烯聚合物组合物的方法
公开(公告)号：US5854354A
公开(公告)日：1998-12-29
申请号：US448570
申请日：1995-06-07
申请人： Takashi Ueda , Mikio Hashimoto , Masaaki Kawasaki , Daisuke Fukuoka , Junichi Imuta
发明人： Takashi Ueda , Mikio Hashimoto , Masaaki Kawasaki , Daisuke Fukuoka , Junichi Imuta
IPC分类号： C08F2/00 , C08F297/08 , C08L23/04 , C08L23/08 , C08L23/10
CPC分类号： C08F297/083 , C08F297/08 , C08L23/10 , C08L23/0815 , Y10S526/943
摘要： A process for preparing a propylene polymer composition comprising conducting multistage polymerization including a step (a) for preparing a propylene (co)polymer (a) and a step (b) for preparing an ethylene copolymer (b) in the presence of (A) a transition metal compound and (B) a compound activating the transition metal compound (A), in which the steps (a) and (b) may be carried out in any order, and the resulting propylene polymer composition contains the propylene (co)polymer (a) in an amount of 20 to 90% by weight and the ethylene copolymer (b) in an amount of 10 to 80% by weight and has MFR, as measured at 230.degree. C. under a load of 2.16 kg, of 0.01 to 500 g/10 min; and a propylene polymer composition prepared by this process. The process according to the invention can prepare a propylene polymer composition having excellent rigidity, heat resistance and impact resistance.
摘要翻译： PCT No.PCT / JP95 / 00707 Sec。 371日期：1995年6月7日 102（e）日期1995年6月7日PCT提交1995年4月11日PCT公布。第WO95 / 27740号公报日期：1995年10月19日一种制备丙烯聚合物组合物的方法，包括进行多步聚合，包括制备丙烯（共）聚合物（a）的步骤（a）和用于制备乙烯共聚物（b））的步骤（b）（A）过渡金属化合物的存在和（B）活化过渡金属化合物（A）的化合物，其中步骤（a）和（b）可以以任何顺序进行，并且所得丙烯聚合物组合物含有丙烯（共）聚合物（a）的量为20〜90重量％，乙烯共聚物（b）的含量为10〜80重量％，MFR为230℃，为2.16kg，为0.01〜500g / 10min; 和通过该方法制备的丙烯聚合物组合物。根据本发明的方法可以制备具有优异的刚性，耐热性和耐冲击性的丙烯聚合物组合物。

2. 发明授权

US5753769A Process for preparing propylene polymer composition and propylene polymer composition 失效
标题翻译：制备丙烯聚合物组合物和丙烯聚合物组合物的方法
公开(公告)号：US5753769A
公开(公告)日：1998-05-19
申请号：US448569
申请日：1995-06-07
申请人： Takashi Ueda , Mikio Hashimoto , Masaaki Kawasaki , Daisuke Fukuoka , Junichi Imuta
发明人： Takashi Ueda , Mikio Hashimoto , Masaaki Kawasaki , Daisuke Fukuoka , Junichi Imuta
IPC分类号： C08F2/00 , C08F2/20 , C08F4/60 , C08F10/06 , C08F210/06 , C08F210/16 , C08F297/08 , C08F297/06 , C08L23/14
CPC分类号： C08F297/086 , C08F10/06 , C08F210/06 , C08F210/16 , C08F4/65912
摘要： A process for preparing a propylene polymer composition having excellent rigidity, heat resistance and impact resistance comprising conducting multistage polymerization including a step (a) for preparing a propylene (co)polymer (A), a step (b) for preparing a propylene-olefin copolymer (B) and a step (c) for preparing an ethylene-olefin copolymer (C) in the presence of (I) a transition metal compound and (II) a compound activating the transition metal compound (I), in which the steps (a), (b) and (c) are carried out in any order, each of the second and subsequent stage polymerizations is carried out in the presence of a polymer or polymers obtained by the preceding stage or stages, respectively, and the resulting propylene polymer composition contains the propylene (co)polymer (A) in an amount of 20 to 90% by weight, the propylene-olefin copolymer (B) in an amount of 5 to 75% by weight and the ethylene-olefin copolymer (C) in an amount of 5 to 75% by weight, and has MFR, as measured at 230.degree. C. under a load of 2.16 kg, of 0.01 to 500 g/10 min.
摘要翻译： PCT No.PCT / JP95 / 00708 Sec。 371日期：1995年6月7日 102（e）日期1995年6月7日PCT提交1995年4月11日PCT公布。 WO95 / 27741 PCT出版物日期：1995年10月19日一种制备具有优异的刚性，耐热性和耐冲击性的丙烯聚合物组合物的方法，其包括进行多步聚合，包括制备丙烯（共）聚合物（A）的步骤（a），步骤（b）在（I）过渡金属化合物和（II）活化过渡金属化合物（I）的化合物的存在下，制备丙烯 - 烯烃共聚物（B）和制备乙烯 - 烯烃共聚物（C）的步骤（c），其中步骤（a），（b）和（c）以任何顺序进行，第二阶段和后续聚合中的每一个在通过前一阶段或阶段获得的聚合物或聚合物的存在下进行，所得丙烯聚合物组合物含有20〜90重量％的丙烯（共）聚合物（A），丙烯 - 烯烃共聚物（B）的含量为5〜75重量％，乙烯 α-烯烃共聚物（C），其量为5〜75重量％，并具有M FR在230℃，2.16kg的负荷下测量为0.01〜500g / 10分钟。

3. 发明授权

US5616663A Transition metal compound, olefin polymerization catalyst component comprising the transition metal compound, olefin polymerization catalyst comprising the olefin polymerization catalyst component, and process for olefin polymerization 失效
标题翻译：过渡金属化合物，包含过渡金属化合物的烯烃聚合催化剂组分，包含烯烃聚合催化剂组分的烯烃聚合催化剂和烯烃聚合方法
公开(公告)号：US5616663A
公开(公告)日：1997-04-01
申请号：US338810
申请日：1994-11-10
申请人： Junichi Imuta , Daisuke Fukuoka , Masayasu Yoshida , Junji Saito , Terunori Fujita , Takashi Tashiro , Koji Kawaai , Takashi Ueda , Yoshihisa Kiso
发明人： Junichi Imuta , Daisuke Fukuoka , Masayasu Yoshida , Junji Saito , Terunori Fujita , Takashi Tashiro , Koji Kawaai , Takashi Ueda , Yoshihisa Kiso
IPC分类号： C08F4/655 , C07C17/14 , C07C17/26 , C07F17/00 , C08F4/60 , C08F4/619 , C08F4/6192 , C08F4/622 , C08F4/642 , C08F4/645 , C08F10/00
CPC分类号： C07C17/14 , C07C17/2632 , C07F17/00 , C08F10/00 , C08F4/61912 , C08F4/61927
摘要： Disclosed is a novel transition metal compound represented by the following formula: ##STR1## wherein M is a transition metal, X is halogen or the like, R.sup.1 is a hydrocarbon group or the like, R.sup.2 is an aryl group substituted with a halogenated hydrocarbon group, and Y is a divalent silicon-containing group or the like.Also disclosed are an olefin polymerization catalyst component comprising the transition metal compound, an olefin polymerization catalyst comprising the olefin polymerization catalyst component, and a process for olefin polymerization using the olefin polymerization catalyst.An olefin polymerization catalyst component having high polymerization activity can be formed from the transition metal compound. By the use of the olefin polymerization catalyst or the process for olefin polymerization, polyolefins having a high melting point and a high molecular weight can be prepared with high polymerization activity.
摘要翻译：公开了由下式表示的新颖的过渡金属化合物：其中M为过渡金属，X为卤素等，R 1为烃基等，R 2为被卤代烃基取代的芳基，Y为二价含硅基团等。还公开了包含过渡金属化合物的烯烃聚合催化剂组分，包含烯烃聚合催化剂组分的烯烃聚合催化剂和使用烯烃聚合催化剂的烯烃聚合方法。可以由过渡金属化合物形成具有高聚合活性的烯烃聚合催化剂组分。通过使用烯烃聚合催化剂或烯烃聚合方法，可以制备具有高聚合活性的高熔点和高分子量的聚烯烃。

4. 发明授权

US5412128A Catalyst for olefin polymerization, process for the polymerization of olefin, and transition metal compound employable for the catalyst 失效
标题翻译：用于烯烃聚合的催化剂，烯烃聚合方法和可用于催化剂的过渡金属化合物
公开(公告)号：US5412128A
公开(公告)日：1995-05-02
申请号：US87875
申请日：1993-07-09
申请人： Junichi Imuta , Junji Saito , Takashi Ueda , Teruaki Mukaiyama
发明人： Junichi Imuta , Junji Saito , Takashi Ueda , Teruaki Mukaiyama
IPC分类号： C08F2/06 , C08F4/642 , C08F4/659 , C08F4/6592 , C08F10/00 , C07F7/08 , C07F17/00
CPC分类号： C08F10/00 , C08F4/65912 , C08F4/65916 , C08F4/6592 , C08F4/65925 , Y10S526/904
摘要： The catalyst for olefin polymerization of the present invention contains R.sub.k.sup.1 R.sub.l.sup.2 R.sub.m.sup.3 M(SO.sub.3 R.sup.4) (M=Zr, Ti or Hf; R.sup.1-3 =a group having a cyclopentadienyl skeleton) as a catalyst component of a transition metal compound. According to the catalyst of the invention, an olefin polymer having excellent particle properties can be prepared with high polymerization activities, and further a copolymer having a narrow composition distribution can be prepared when two or more monomers are copolymerized. Of the above-mentioned transition metal compounds, a compound represented by the following formula is a novel compound unknown so far and shows excellent catalytic properties. ##STR1## (Cp=a group having a cyclopentadienyl skeleton, X=SO.sub.3 R, a halogen atom, R, OR, NR.sub.n, S(O).sub.q R, SiR.sub.3 or P (O).sub.q R.sub.3, n=1, 2 or 3; q=0, 1 or 2)
摘要翻译：本发明的烯烃聚合用催化剂作为过渡金属化合物的催化剂成分含有Rk1R12Rm3M（SO3R4）（M = Zr，Ti或Hf; R1-3 =具有环戊二烯基骨架的基团）。根据本发明的催化剂，具有优异的颗粒性能的烯烃聚合物可以以高聚合活性制备，并且当两种或多种单体共聚时，可以制备组成分布窄的共聚物。在上述过渡金属化合物中，由下式表示的化合物是迄今为止未知的新化合物，显示出优异的催化性能。（Cp =具有环戊二烯基骨架的基团，X = SO 3 R，卤素原子，R，OR，NR n，S（O）q R，SiR 3或P（O）q R 3，n = 1,2或3; q = 0,1或2）

5. 发明授权

US5629254A Substituted indenyl ring containing metallocene catalyst for propylene polymerization process 失效
标题翻译：用于丙烯聚合方法的含有茂金属催化剂的取代的茚基环
公开(公告)号：US5629254A
公开(公告)日：1997-05-13
申请号：US486642
申请日：1995-06-07
申请人： Daisuke Fukuoka , Takashi Tashiro , Koji Kawaai , Junji Saito , Takashi Ueda , Yoshihisa Kiso , Junichi Imuta , Terunori Fujita , Masatoshi Nitabaru , Masayasu Yoshida
发明人： Daisuke Fukuoka , Takashi Tashiro , Koji Kawaai , Junji Saito , Takashi Ueda , Yoshihisa Kiso , Junichi Imuta , Terunori Fujita , Masatoshi Nitabaru , Masayasu Yoshida
IPC分类号： C07C45/46 , C07C49/67 , C07C49/697 , C07F17/00 , C08F4/60 , C08F4/602 , C08F4/619 , C08F4/6192 , C08F4/64 , C08F4/642 , C08F4/659 , C08F4/6592 , C08F10/00 , C08F10/06 , C08F110/06 , C08F210/06 , C08F210/16
CPC分类号： C08F210/16 , C07C45/46 , C07C49/67 , C07C49/697 , C07F17/00 , C08F10/00 , C08F10/06 , C08F110/06 , C08F210/06 , C08F4/61912 , C08F4/61927 , C08F4/65908 , C08F4/65912 , C08F4/65916 , C08F4/65927 , Y10S526/904 , Y10S526/943
摘要： The novel transition metal catalyst of the invention is represented by the following formula (I): ##STR1## wherein M is a zirconium or hafnium; R.sup.1 is a hydrocarbon group of 2 to 6 carbon atoms, R.sup.2 is an aryl group of 6 to 16 carbon atoms; X.sup.1 and X.sup.2 are each a halogen atom; and Y is a divalent hydrocarbon group, a divalent silicon-containing group.
摘要翻译：本发明的新型过渡金属催化剂由下式（I）表示： R 1是2至6个碳原子的烃基，R 2是6至16个碳原子的芳基; X1和X2各自为卤素原子; Y为二价烃基，二价含硅基团。

6. 发明授权

US5969049A Process for preparing propylene polymer composition and propylene polymer composition 失效
标题翻译：制备丙烯聚合物组合物和丙烯聚合物组合物的方法
公开(公告)号：US5969049A
公开(公告)日：1999-10-19
申请号：US816042
申请日：1997-03-11
申请人： Takashi Ueda , Mikio Hashimoto , Masaaki Kawasaki , Daisuke Fukuoka , Junichi Imuta
发明人： Takashi Ueda , Mikio Hashimoto , Masaaki Kawasaki , Daisuke Fukuoka , Junichi Imuta
IPC分类号： C08F2/00 , C08F2/20 , C08F4/60 , C08F10/06 , C08F210/06 , C08F210/16 , C08F297/08 , C08F297/06 , C08L23/14
CPC分类号： C08F297/086 , C08F10/06 , C08F210/06 , C08F210/16 , C08F4/65912
摘要： A process for preparing a propylene polymer composition having excellent rigidity, heat resistance and impact resistance, the process comprising conducting multistage polymerization including a step (a) for preparing a propylene (co)polymer (a), a step (b) for preparing a propylene-olefin copolymer (b) and a step (c) for preparing an ethylene-olefin copolymer (c) in the presence of (A) a transition metal compound and (B) a compound activating the transition metal compound (A), in which the steps (a), (b) and (c) may be carried out in any order, each of the second and subsequent stage polymerizations is carried out in the presence of a polymer or polymers obtained by the preceding stage or stages, respectively, and the resulting propylene polymer composition contains the propylene (co)polymer (a) in an amount of 20 to 90% by weight, the propylene-olefin copolymer (b) in an amount of 5 to 75% by weight and the ethylene-olefin copolymer (c) in an amount of 5 to 75% by weight, and has MFR, as measured at 230.degree. C. under a load of 2.16 kg, of 0.01 to 500 g/10 min.
摘要翻译：一种制备具有优异的刚性，耐热性和耐冲击性的丙烯聚合物组合物的方法，该方法包括进行包括步骤（a）的制备丙烯（共）聚合物（a）的步骤（a）的多段聚合，制备丙烯 - 烯烃共聚物（b）和用于在（A）过渡金属化合物和（B）活化过渡金属化合物（A）的化合物存在下制备乙烯 - 烯烃共聚物（c）的步骤（c）步骤（a），（b）和（c）可以以任何顺序进行，第二阶段和后续阶段聚合中的每一个分别在分别由先前阶段或阶段获得的聚合物或聚合物的存在下进行，得到的丙烯聚合物组合物含有20〜90重量％的丙烯（共）聚合物（a），丙烯 - 烯烃共聚物（b）的含量为5〜75重量％，乙烯 - 烯烃共聚物（c）的量为5〜75重量％，MFR为MFR，在230℃，2.16kg的载荷下测量为0.01〜500g / 10分钟。

7. 发明授权

US5723640A Transition metal compound having indenyl-containing metallocene 失效
标题翻译：具有含茚基茂金属的过渡金属化合物
公开(公告)号：US5723640A
公开(公告)日：1998-03-03
申请号：US622592
申请日：1996-03-26
申请人： Daisuke Fukuoka , Takashi Tashiro , Koji Kawaai , Junji Saito , Takashi Ueda , Yoshihisa Kiso , Junichi Imuta , Terunori Fujita , Masatoshi Nitabaru , Masayasu Yoshida
发明人： Daisuke Fukuoka , Takashi Tashiro , Koji Kawaai , Junji Saito , Takashi Ueda , Yoshihisa Kiso , Junichi Imuta , Terunori Fujita , Masatoshi Nitabaru , Masayasu Yoshida
IPC分类号： C07C45/46 , C07C49/67 , C07C49/697 , C07F17/00 , C08F4/60 , C08F4/602 , C08F4/619 , C08F4/6192 , C08F4/64 , C08F4/642 , C08F4/659 , C08F4/6592 , C08F10/00 , C08F10/06 , C08F110/06 , C08F210/06 , C08F210/16 , C07F7/08
CPC分类号： C08F210/16 , C07C45/46 , C07C49/67 , C07C49/697 , C07F17/00 , C08F10/00 , C08F10/06 , C08F110/06 , C08F210/06 , C08F4/61912 , C08F4/61927 , C08F4/65908 , C08F4/65912 , C08F4/65916 , C08F4/65927 , Y10S526/904 , Y10S526/943
摘要： The novel transition metal compound of the invention is represented by the following formula (I): ##STR1## wherein M is a transition metal; R.sup.1 is a hydrocarbon group of 2 to 6 carbon atoms, R.sup.2 is an aryl group of 6 to 16 carbon atoms; X.sup.1 and X.sup.2 are each a halogen atom or the like; and Y is a divalent hydrocarbon group, a divalent silicon-containing group or the like. An olefin polymerization catalyst component of the present invention comprises the aforementioned transition metal compound.
摘要翻译：本发明的新型过渡金属化合物由下式（I）表示：是2至6个碳原子的烃基，R 2是6至16个碳原子的芳基; X1和X2各自为卤素原子等; Y为二价烃基，二价含硅基团等。本发明的烯烃聚合催化剂组分包含上述过渡金属化合物。

8. 发明授权

US5424378A Catalyst for olefin polymerization, process for the polymerization of olefin, and transition metal compound employable for the catalyst 失效
标题翻译：用于烯烃聚合的催化剂，烯烃聚合方法和可用于催化剂的过渡金属化合物
公开(公告)号：US5424378A
公开(公告)日：1995-06-13
申请号：US281541
申请日：1994-07-28
申请人： Junichi Imuta , Takashi Ueda
发明人： Junichi Imuta , Takashi Ueda
IPC分类号： C08F2/06 , C08F4/642 , C08F4/659 , C08F4/6592 , C08F10/00 , C08F4/64
CPC分类号： C08F10/00 , C08F4/65912 , C08F4/65916 , C08F4/6592 , C08F4/65925 , Y10S526/904
摘要： The catalyst for olefin polymerization of the present invention contains R.sup.1.sub.k R.sup.2.sub.1 R.sup.3.sub.m M(SO.sub.3 R.sup.4) (M=Zr, Ti or Hf; R.sup.1-3 =a group having a cyclopentadienyl skeleton) as a catalyst component of a transition metal compound. According to the catalyst of the invention, an olefin polymer having excellent particle properties can be prepared with high polymerization activities, and further a copolymer having a narrow composition distribution can be prepared when two or more monomers are copolymerized. Of the above-mentioned transition metal compounds, a compound represented by the following formula is a novel compound unknown so far and shows excellent catalytic properties. ##STR1## (Cp=a group having a cyclopentadienyl skeleton, X=SO.sub.3 R, a halogen atom, R, OR, NR.sub.n, S(O).sub.q R, SiR.sub.3 or P(O).sub.q R.sub.3, n=1, 2 or 3; q=0, 1 or 2).
摘要翻译：本发明的烯烃聚合用催化剂作为过渡金属化合物的催化剂成分含有R1kR21R3mM（SO3R4）（M = Zr，Ti或Hf; R1-3 =具有环戊二烯基骨架的基团）。根据本发明的催化剂，具有优异的颗粒性能的烯烃聚合物可以以高聚合活性制备，并且当两种或多种单体共聚时，可以制备组成分布窄的共聚物。在上述过渡金属化合物中，由下式表示的化合物是迄今为止未知的新化合物，显示出优异的催化性能。（Cp =具有环戊二烯基骨架的基团，X = SO 3 R，卤素原子，R，OR，NR n，S（O）q R，SiR 3或P（O）q R 3，n = 1,2或3; q = 0,1或2）。

9. 发明授权

US5409874A Catalyst for olefin polymerization, process for the polymerization of olefin, and transition metal compound employable for the catalyst 失效
标题翻译：用于烯烃聚合的催化剂，烯烃聚合方法和可用于催化剂的过渡金属化合物
公开(公告)号：US5409874A
公开(公告)日：1995-04-25
申请号：US901015
申请日：1992-06-19
申请人： Junichi Imuta , Junji Saito , Takashi Ueda , Teruaki Mukaiyama
发明人： Junichi Imuta , Junji Saito , Takashi Ueda , Teruaki Mukaiyama
IPC分类号： C08F2/06 , C08F4/642 , C08F4/659 , C08F4/6592 , C08F10/00 , B01J31/00 , C08F4/60
CPC分类号： C08F10/00 , C08F4/65912 , C08F4/65916 , C08F4/6592 , C08F4/65925 , Y10S526/904
摘要： The catalyst for olefin polymerization of the present invention contains R.sup.1.sub.k R.sup.2.sub.l R.sup.3.sub.m M(SO.sub.3 R.sup.4) (M=Zr, Ti or Hf; R.sup.1-3 =a group having a cyclopentadienyl skeleton) as a catalyst component of a transition metal compound. According to the catalyst of the invention, an olefin polymer having excellent particle properties can be prepared with high polymerization activities, and further a copolymer having a narrow composition distribution can be prepared when two or more monomers are copolymerized. Of the above-mentioned transition metal compounds, a compound represented by the following formula is a novel compound unknown so far and shows excellent catalytic properties. ##STR1## (Cp=a group having a cyclopentadienyl skeleton, X=SO.sub.3 R, a halogen atom, R, OR, NR.sub.n, S(O).sub.q R, SiR.sub.3 or P(O).sub.q R.sub.3, n=1, 2 or 3; q=0, 1 or 2)
摘要翻译：作为过渡金属化合物的催化剂成分，本发明的烯烃聚合用催化剂含有R1kR2R3mM（SO3R4）（M = Zr，Ti或Hf; R1-3 =具有环戊二烯基骨架的基团）。根据本发明的催化剂，具有优异的颗粒性能的烯烃聚合物可以以高聚合活性制备，并且当两种或多种单体共聚时，可以制备组成分布窄的共聚物。在上述过渡金属化合物中，由下式表示的化合物是迄今为止未知的新化合物，显示出优异的催化性能。（Cp =具有环戊二烯基骨架的基团，X = SO 3 R，卤素原子，R，OR，NR n，S（O）q R，SiR 3或P（O）q R 3，n = 1,2或3; q = 0,1或2）

10. 发明授权

US5959046A Processes for producing propylene polymer utilizing bis (1-(4-isopropyl-7-methyl-indenyl) zirconium halide-base catalyst components 失效
标题翻译：利用双（1-（4-异丙基-7-甲基 - 茚基）锆卤化物 - 基催化剂组分制备丙烯聚合物的方法
公开(公告)号：US5959046A
公开(公告)日：1999-09-28
申请号：US829811
申请日：1997-04-21
申请人： Junichi Imuta , Junji Saito , Takashi Ueda , Yoshihisa Kiso , Akira Mizuno , Masaaki Kawasaki
发明人： Junichi Imuta , Junji Saito , Takashi Ueda , Yoshihisa Kiso , Akira Mizuno , Masaaki Kawasaki
IPC分类号： C07F17/00 , C08F4/602 , C08F4/639 , C08F4/6392 , C08F4/64 , C08F4/659 , C08F10/00 , C08F10/06 , C08F110/06 , C08F210/06
CPC分类号： C08F210/06 , C07F17/00 , C08F10/00 , C08F10/06 , C08F110/06 , C08F4/63908 , C08F4/63912 , C08F4/63916 , C08F4/63927 , C08F4/65908 , C08F4/65912 , C08F4/65916 , Y10S526/943
摘要： A process for producing a propylene polymer having an intrinsic viscosity (.eta.), as measured in decahydronaphthalene at 135.degree. C., of 1 to 12 dl/g comprises polymerizing propylene optionally with other olefins in the presence of an olefin polymerization catalyst comprising a transition metal compound represented by the formula ##STR1## wherein R.sup.1 and R.sup.2 are each a hydrogen atom or a hydrocarbon group of 1 to 3 carbon atoms,X.sup.1 and X.sup.2 are each a halogen atom, andY is a divalent silicon-containing group.
摘要翻译：在135℃的十氢化萘中测定的丙烯聚合物的特性粘度（η）为1至12dl / g的方法包括在包含过渡金属的烯烃聚合催化剂存在下，将丙烯任选地与其它烯烃聚合，由下式表示的金属化合物，其中R 1和R 2各自为氢原子或1至3个碳原子的烃基，X 1和X 2各自为卤素原子，Y为二价含硅基团。

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