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    Olefin polymers, method of making, and use thereof
    118.
    发明申请
    Olefin polymers, method of making, and use thereof 有权
    烯烃聚合物，制备方法及其用途

    公开(公告)号：US20030199648A1

    公开(公告)日：2003-10-23

    申请号：US10373648

    申请日：2003-02-24

    发明人： Max P. McDaniel ,  Elizabeth A. Benham ,  Al R. Wolfe ,  Paul J. DesLauriers ,  Pamela L. Meager ,  William R. Coutant ,  David C. Rohlfing ,  Steven J. Secora

    IPC分类号： C08F004/52

    CPC分类号： F16L9/127 ,  C08F10/00 ,  C08F210/16 ,  Y10T428/139 ,  C08F4/69 ,  C08F210/14 ,  C08F2500/12 ,  C08F2500/07 ,  C08F2500/13 ,  C08F2500/04 ,  C08F4/025

    摘要： The present invention is directed to homo-polymers and copolymers of mono-1-olefins, a method of making such polymers, and uses of such polymers. Polymers of the present invention are formed by contacting at least one mono-1-olefin having from 2 to about 20 carbon atoms per molecule and at least one mono-1-olefin co-monomer having from 2 to about 10 carbon atoms per molecule in a reaction zone under polymerization conditions in the presence of a hydrocarbon diluent, a catalyst system, and a cocatalyst. The catalyst system of the present invention comprises a chromium source on an aluminophosphate support which has a phosphorous to aluminum mole ratio of less than about 0.3. Further, the catalyst system is treated with less than about 7 weight percent fluoride based on the weight of the support and is calcined. Cocatalyst are selected from trialkylboron compounds, triarylboron compounds, alkylaluminum compounds, and combinations thereof. In another aspect of the present invention, ethylene copolymers are employed to produce PE-100 pipe. These copolymers are formed by contacting ethylene with at least one mono-1-olefin comonomer having from 2 to about 10 carbon atoms per molecule in a reaction zone under polymerization conditions in the presence of a hydrocarbon diluent, a catalyst system, and a cocatalyst. Additionally, the comonomers may be selected from mono-1-olefins having 4 to 10 carbon atoms, such as, 1-hexene, 1-butene, 4-methyl-1-pentene, 1-octene, and 1-decene. Further, these ethylene copolymers may be employed to produce PE-100 pipe having both small diameters and diameters in excess of 42 inches substantially without sagging or other gravitational deformation. Copolymers of ethylene and 1-hexene are disclosed which are used to produce PE-100 pipe.

    摘要翻译： 本发明涉及单-1-烯烃的均聚物和共聚物，制备这种聚合物的方法以及这种聚合物的用途。 本发明的聚合物通过使每分子具有2至约20个碳原子的至少一种单-1-烯烃和至少一种每分子具有2至约10个碳原子的单-1-烯烃共聚物接触而形成 在烃稀释剂，催化剂体系和助催化剂的存在下在聚合条件下的反应区。 本发明的催化剂体系包含磷酸铝载体上的铬源，其磷 - 铝摩尔比小于约0.3。 此外，催化剂体系以基于载体重量的少于约7重量％的氟化物处理，并被煅烧。 助催化剂选自三烷基硼化合物，三芳基硼化合物，烷基铝化合物及其组合。 在本发明的另一方面，乙烯共聚物用于生产PE-100管。 这些共聚物是通过在烃类稀释剂，催化剂体系和助催化剂的存在下，在聚合条件下，在反应区中使乙烯与至少一种每分子具有2至约10个碳原子的单-1-烯烃共聚单体接触而形成的。 此外，共聚单体可以选自具有4-10个碳原子的单-1-烯烃，例如1-己烯，1-丁烯，4-甲基-1-戊烯，1-辛烯和1-癸烯。 此外，这些乙烯共聚物可用于生产具有超过42英寸的小直径和直径的PE-100管，基本上不会下垂或其它引力变形。 公开了用于生产PE-100管的乙烯和1-己烯的共聚物。