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    Process for preparation of polyolefins via degenerative transfer polymerization
    1.
    发明授权
    Process for preparation of polyolefins via degenerative transfer polymerization 有权
    通过退化转移聚合制备聚烯烃的方法

    公开(公告)号：US07541412B2

    公开(公告)日：2009-06-02

    申请号：US11698975

    申请日：2007-01-29

    申请人： Lawrence R. Sita

    发明人： Lawrence R. Sita

    IPC分类号： C08F4/68 ,  C08F2/04

    CPC分类号： C08F10/14 ,  C08F4/639 ,  C08F4/65904 ,  C08F110/14 ,  C08F297/08 ,  C08F297/083 ,  Y10S526/941 ,  Y10S526/943 ,  C08F4/6592 ,  C08F4/65908 ,  C08F2500/15 ,  C08F2500/03 ,  C08F2500/17 ,  C08F2/40

    摘要： Disclosed is a method of producing a polyolefin composition comprising contacting a metallocene pre-catalyst with a substoichiometric amount of a co-catalyst; adding a first olefin monomer; and polymerizing the first monomer for a time sufficient to form the polyolefin. The method allows for the use of a minimum amount of activating co-catalyst, and allows for the production of stereoregular and non-stereoregular polyolefins. The use of configurationally stable metallocene pre-catalysts allows for the production of monomodal isotactic polyolefins having narrow polydispersity. The use of configurationally unstable metallocene pre-catalysts allows for the production of monomodal atactic polyolefins having narrow polydispersity. The method of the present invention optionally further comprises contacting the polyolefin with a second amount of said co-catalyst; adding a second olefin monomer; polymerizing said second olefin monomer to form a block-polyolefin composition. Also disclosed are monomodal diblock copolymer compositions made according to the present invention.

    摘要翻译： 公开了一种生产聚烯烃组合物的方法，包括使茂金属预催化剂与亚化学计量量的助催化剂接触; 加入第一种烯烃单体; 并使第一单体聚合足以形成聚烯烃的时间。 该方法允许使用最少量的活化助催化剂，并且允许产生立体规则和非立构规整的聚烯烃。 使用结构稳定的茂金属预催化剂允许生产具有窄多分散性的单峰全同立构聚烯烃。 使用结构不稳定的茂金属预催化剂允许生产具有窄多分散性的单峰无规立构聚烯烃。 本发明的方法还包括使聚烯烃与第二量的所述助催化剂接触; 加入第二烯烃单体; 聚合所述第二烯烃单体以形成嵌段 - 聚烯烃组合物。 还公开了根据本发明制备的单峰二嵌段共聚物组合物。

    Process for preparation of polyolefins via living coordinative chain transfer polymerization
    3.
    发明授权
    Process for preparation of polyolefins via living coordinative chain transfer polymerization 有权
    通过活性配位链转移聚合制备聚烯烃的方法

    公开(公告)号：US08188200B2

    公开(公告)日：2012-05-29

    申请号：US12742055

    申请日：2008-11-10

    申请人： Lawrence R. Sita ,  Wei Zhang

    发明人： Lawrence R. Sita ,  Wei Zhang

    IPC分类号： C08F4/642 ,  C08F4/643 ,  C08F4/6592 ,  C08F293/00

    CPC分类号： C08F10/00 ,  C08F4/65908 ,  C08F4/6592 ,  C08F10/02 ,  C08F210/02 ,  C08F210/16 ,  Y10S526/943 ,  C08F4/65912 ,  C08F2/38 ,  C08F236/20 ,  C08F2500/03 ,  C08F210/14

    摘要： Disclosed is a method of producing a polyolefin composition comprising contacting a metallocene pre-catalyst, co-catalyst, and a stoichiometric excess of a metal alkyl; adding a first olefin monomer; and polymerizing the first monomer for a time sufficient to form the polyolefin. The method allows for the use of minimum amounts of activating co-catalyst and metallocene pre-catalyst. Also disclosed is a method of producing a block polyolefin composition comprising contacting a metallocene pre-catalyst, a co-catalyst, and a stoichiometric excess of a metal alkyl; adding a first olefin monomer; polymerizing the first monomer for a time sufficient to form the polyolefin; adding a second monomer; and polymerizing the second olefin monomer for a time sufficient to form said block polyolefin composition. Also disclosed are amorphous atactic polymer and copolymer compositions made according to the present invention.

    摘要翻译： 公开了一种生产聚烯烃组合物的方法，包括使茂金属预催化剂，助催化剂和化学计量过量的金属烷基接触; 加入第一种烯烃单体; 并使第一单体聚合足以形成聚烯烃的时间。 该方法允许使用最少量的活化助催化剂和茂金属预催化剂。 还公开了一种制备嵌段聚烯烃组合物的方法，包括使茂金属预催化剂，助催化剂和化学计量过量的金属烷基接触; 加入第一种烯烃单体; 使第一单体聚合足以形成聚烯烃的时间; 加入第二单体; 并使第二烯烃单体聚合足以形成所述嵌段聚烯烃组合物的时间。 还公开了根据本发明制备的无定形无规立构聚合物和共聚物组合物。

    Methods for modulated degenerative transfer living polymerization and isotactic-atactic stereoblock and stereogradient poly(olefins) thereby
    6.
    发明授权
    Methods for modulated degenerative transfer living polymerization and isotactic-atactic stereoblock and stereogradient poly(olefins) thereby 有权
    因此调节退化转移活性聚合和全同立构立构嵌段和立体缩聚聚（烯烃）的方法

    公开(公告)号：US08513366B2

    公开(公告)日：2013-08-20

    申请号：US11886535

    申请日：2006-03-17

    申请人： Lawrence R. Sita ,  Matthew B. Harney ,  Yonghui Zhang

    发明人： Lawrence R. Sita ,  Matthew B. Harney ,  Yonghui Zhang

    IPC分类号： C08F2/00 ,  C08F4/72 ,  C08F210/00 ,  C08F110/06

    CPC分类号： C08L53/00 ,  C08F210/14 ,  C08F297/04 ,  C08F297/06 ,  C08F297/08 ,  C08F297/083 ,  C08F297/086 ,  C08L53/02 ,  C08L2207/14 ,  Y10T428/298 ,  C08L2666/02 ,  C08F2500/15

    摘要： Methods for modulated degenerative transfer living polymerization and isotactic-atactic stereoblock and stereogradient poly(olefins) thereby Abstract A method of producing a multiblock, stereoblock polyolefin having substantially uniform microstructure is disclosed. The method includes contacting a Ziegler-Natta pre-catalyst with a co-catalyst and an olefin to polymerize the olefin and form a first stereoblock, adding a methyl donator that changes the stereoregularity of the polymerization, and polymerizing the olefin to form a second stereoblock. The methods of the present invention allow for the production of poly(olefin)s having predictable degrees of incorporation of stereoerrors of a known type. The methods allows for the production of a variety of poly(olefin) microstructures, ranging from stereoblock to stereogradient poly(olefin)s and poly(olefin)s having fully isotactic to fully atactic microstructures.

    摘要翻译： 本发明公开了一种制备具有基本一致的微观结构的多嵌段立体嵌段聚烯烃的方法，其中所述方法包括调节退化转移活性聚合和全同立构立构嵌段和立体聚合的聚（烯烃）的方法。 该方法包括使齐格勒 - 纳塔预催化剂与助催化剂和烯烃接触以使烯烃聚合并形成第一个立体嵌段，加入改变聚合的立构规整性的甲基供体，并使烯烃聚合形成第二个立体嵌段 。 本发明的方法允许生产具有已知类型的立体错误的可预测掺入程度的聚（烯烃）。 这些方法允许生产各种聚（烯烃）微观结构，范围从立体嵌段到立体聚合的聚（烯烃）和具有完全全同立构的聚（烯烃）完全无规立构的微结构。

    Scalable Production of Precision Hydrocarbons from Trialkylaluminum via Ternary Living Coordinative Chain Transfer Polymerization
    7.
    发明申请
    Scalable Production of Precision Hydrocarbons from Trialkylaluminum via Ternary Living Coordinative Chain Transfer Polymerization 有权
    通过三元生物协调链转移聚合从三烷基铝可扩展生产精密烃

    公开(公告)号：US20130109900A1

    公开(公告)日：2013-05-02

    申请号：US13520389

    申请日：2011-01-04

    申请人： Lawrence R. Sita ,  Jia Wei

    发明人： Lawrence R. Sita ,  Jia Wei

    IPC分类号： C07C2/30

    CPC分类号： C07C2/30 ,  C08F10/00 ,  C08F2410/01 ,  C08F2420/04 ,  C08F110/06 ,  C08F4/6592 ,  C08F4/64044 ,  C08F2/38 ,  C08F210/06 ,  C08F210/14 ,  C08F2500/02

    摘要： Disclosed is a method of producing a polyolefin composition comprising contacting a metallocene pre-catalyst, a co-catalyst, a primary surrogate, and a secondary surrogate; adding a first olefin monomer; and polymerizing the first monomer for a time sufficient to form the polyolefin. Also disclosed is a method of producing a block polyolefin composition comprising contacting a metallocene pre-catalyst, a co-catalyst, a primary surrogate, and a secondary surrogate; polymerizing the first monomer for a time sufficient to form the polyolefin; adding a second monomer; and polymerizing the second olefin monomer for a time sufficient to foam said block polyolefin composition. The method allows for the production of polyolefins of low molecular weights and narrow molecular weight distributions.

    摘要翻译： 公开了一种生产聚烯烃组合物的方法，包括使茂金属预催化剂，助催化剂，主代替物和次级代理物接触; 加入第一种烯烃单体; 并使第一单体聚合足以形成聚烯烃的时间。 还公开了一种制备嵌段聚烯烃组合物的方法，包括使茂金属预催化剂，助催化剂，主代理和次级代理接触; 使第一单体聚合足以形成聚烯烃的时间; 加入第二单体; 并使所述第二烯烃单体聚合足以使所述嵌段聚烯烃组合物发泡的时间。 该方法允许生产低分子量和窄分子量分布的聚烯烃。

    Methods for modulated degenerative transfer living polymerization and isotactic-atactic stereoblock and stereogradient poly(olefins) thereby
    8.
    发明授权
    Methods for modulated degenerative transfer living polymerization and isotactic-atactic stereoblock and stereogradient poly(olefins) thereby 有权
    因此调节退化转移活性聚合和全同立构立构嵌段和立体缩聚聚（烯烃）的方法

    公开(公告)号：US07868088B2

    公开(公告)日：2011-01-11

    申请号：US11886536

    申请日：2006-03-17

    申请人： Lawrence R. Sita ,  Matthew B. Harney ,  Yonghui Zhang

    发明人： Lawrence R. Sita ,  Matthew B. Harney ,  Yonghui Zhang

    IPC分类号： C08L53/00

    CPC分类号： C08F110/06 ,  C08F4/65908 ,  C08F10/00 ,  C08F110/14 ,  C08F293/005 ,  C08F297/08 ,  C08F297/083 ,  C08F4/6592 ,  C08F2500/15

    摘要： Methods for modulated degenerative transfer living polymerization and isotactic-atactic stereoblock and stereogradient poly(olefins) thereby Abstract A method of producing a multiblock, stereoblock polyolefin having substantially uniform microstructure is disclosed. The method includes contacting a Ziegler-Natta pre-catalyst with a co-catalyst and an olefin to polymerize the olefin and form a first stereoblock, adding a methyl donator that changes the stereoregularity of the polymerization, and polymerizing the olefin to form a second stereoblock. The methods of the present invention allow for the production of poly(olefin)s having predictable degrees of incorporation of stereoerrors of a known type. The methods allows for the production of a variety of poly(olefin) microstructures, ranging from stereoblock to stereogradient poly(olefin)s and poly(olefin)s having fully isotactic to fully atactic microstructures.

    摘要翻译： 本发明公开了一种制备具有基本一致的微观结构的多嵌段立体嵌段聚烯烃的方法，其中所述方法包括调节退化转移活性聚合和全同立构立构嵌段和立体聚合的聚（烯烃）的方法。 该方法包括使齐格勒 - 纳塔预催化剂与助催化剂和烯烃接触以使烯烃聚合并形成第一个立体嵌段，加入改变聚合的立构规整性的甲基供体，并使烯烃聚合形成第二个立体嵌段 。 本发明的方法允许生产具有已知类型的立体错误的可预测掺入程度的聚（烯烃）。 这些方法允许生产各种聚（烯烃）微观结构，范围从立体嵌段到立体聚合的聚（烯烃）和具有完全全同立构的聚（烯烃）完全无规立构的微结构。

    Methods for Modulated Degenerative Transfer Living Polymerization and Isotactic-Atactic Stereoblock and Stereogradient Poly(Olefins) Thereby
    9.
    发明申请
    Methods for Modulated Degenerative Transfer Living Polymerization and Isotactic-Atactic Stereoblock and Stereogradient Poly(Olefins) Thereby 有权
    调制退化转移活性聚合和全同立构立构单体和立体溶解聚（烯烃）的方法

    公开(公告)号：US20090209703A1

    公开(公告)日：2009-08-20

    申请号：US11886536

    申请日：2006-03-17

    申请人： Lawrence R. Sita ,  Matthew B. Harney ,  Yonghui Zhang

    发明人： Lawrence R. Sita ,  Matthew B. Harney ,  Yonghui Zhang

    IPC分类号： C08L53/00

    CPC分类号： C08F110/06 ,  C08F4/65908 ,  C08F10/00 ,  C08F110/14 ,  C08F293/005 ,  C08F297/08 ,  C08F297/083 ,  C08F4/6592 ,  C08F2500/15

    摘要： Methods for modulated degenerative transfer living polymerization and isotactic-atactic stereoblock and stereogradient poly(olefins) thereby Abstract A method of producing a multiblock, stereoblock polyolefin having substantially uniform microstructure is disclosed. The method includes contacting a Ziegler-Natta pre-catalyst with a co-catalyst and an olefin to polymerize the olefin and form a first stereoblock, adding a methyl donator that changes the stereoregularity of the polymerization, and polymerizing the olefin to form a second stereoblock. The methods of the present invention allow for the production of poly(olefin)s having predictable degrees of incorporation of stereoerrors of a known type. The methods allows for the production of a variety of poly(olefin) microstructures, ranging from stereoblock to stereogradient poly(olefin)s and poly(olefin)s having fully isotactic to fully atactic microstructures.

    摘要翻译： 本发明公开了一种制备具有基本一致的微观结构的多嵌段立体嵌段聚烯烃的方法，其中所述方法包括调节退化转移活性聚合和全同立构立构嵌段和立体聚合的聚（烯烃）的方法。 该方法包括使齐格勒 - 纳塔预催化剂与助催化剂和烯烃接触以使烯烃聚合并形成第一个立体嵌段，加入改变聚合的立构规整性的甲基供体，并使烯烃聚合形成第二个立体嵌段 。 本发明的方法允许生产具有已知类型的立体错误的可预测掺入程度的聚（烯烃）。 这些方法允许生产各种聚（烯烃）微观结构，范围从立体嵌段到立体聚合的聚（烯烃）和具有完全全同立构的聚（烯烃）完全无规立构的微结构。