公开(公告)号：US07220806B2

公开(公告)日：2007-05-22

申请号：US11119243

申请日：2005-04-29

申请人： William John Gauthier ,  Jun Tian ,  David John Rauscher ,  Constance Hayworth Patrick ,  Shady Nader Henry ,  Nathan Williams

发明人： William John Gauthier ,  Jun Tian ,  David John Rauscher ,  Constance Hayworth Patrick ,  Shady Nader Henry ,  Nathan Williams

IPC分类号： C08F4/76 ,  C08F4/52

CPC分类号： C08F210/16 ,  C08F4/65912 ,  C08F10/00 ,  C08F210/06 ,  C08F2500/03 ,  C08F2500/20 ,  C08F4/65927

摘要： A process for preparing low melting copolymers comprising contacting a mixture of olefin monomers with a CpFlu-type metallocene catalyst under reaction conditions sufficient to form a copolymer. The copolymers thus prepared desirably display melt temperatures from about 100° C. to about 140° C. and may be produced with reduced amounts of ethylene. The copolymers may also exhibit reduced levels of undesirable xylene solubles, relatively narrow molecular weight distribution, and other improved optical and physical properties.

摘要翻译： 一种制备低熔点共聚物的方法，包括使烯烃单体的混合物与CpFlu型金属茂催化剂在足以形成共聚物的反应条件下接触。 如此制备的共聚物理想地显示约100℃至约140℃的熔融温度，并且可以用减少量的乙烯制备。 共聚物也可以表现出不希望的二甲苯可溶物的水平降低，分子量分布相对窄，以及其他改进的光学和物理性能。

公开(公告)号：US07309678B2

公开(公告)日：2007-12-18

申请号：US11094681

申请日：2005-03-29

申请人： David John Rauscher ,  William John Gauthier ,  Shady Nader Henry ,  Kai Hortmann

发明人： David John Rauscher ,  William John Gauthier ,  Shady Nader Henry ,  Kai Hortmann

IPC分类号： B01J31/16

CPC分类号： C08F10/00 ,  C08F4/65912 ,  C08F4/65927 ,  C08F110/06 ,  Y02P20/52 ,  Y10S526/904 ,  Y10S526/943 ,  C08F4/65916 ,  C08F2500/16 ,  C08F2500/15 ,  C08F2500/12 ,  C08F2500/18

摘要： Supported stereospecific catalysts and processes for the stereotactic propagation of a polymer chain derived from ethylenically unsaturated monomers such as the polymerization of propylene to produce syndiotactic polypropylene or isotactic polypropylene. The supported catalyst comprises a stereospecific metallocene catalyst component and a co-catalyst component comprising an alkylalumoxane. Both the metallocene catalyst component and the co-catalyst component are supported on a particulate polyamide support comprising spheroidical particles of a polyamide having an average diameter with the range of 5-60 microns, and a porosity permitting distribution of a portion of the co-catalyst within the pore volume of the polyamide particles while retaining a substantial portion on the surface of the particles. The polyamide support is characterized by relatively low surface area, specifically a surface area less than 20 square meters per gram. The metallocene component can take the form of a single metallocene or two or more co-supported metallocenes.

摘要翻译： 支持的立体定向催化剂和用于衍生自烯属不饱和单体的聚合物链的立体定向扩散的方法，例如丙烯聚合以产生间同立构聚丙烯或全同立构聚丙烯。 载体催化剂包括立体特异性茂金属催化剂组分和包含烷基铝氧烷的助催化剂组分。 金属茂催化剂组分和助催化剂组分均负载在包含平均直径为5-60微米范围的聚酰胺的球形颗粒的颗粒聚酰胺载体上，并且允许一部分助催化剂分布的孔隙率 在聚酰胺颗粒的孔体积内，同时保留颗粒表面上的实质部分。 聚酰胺载体的特征在于相对较低的表面积，特别是小于20平方米/克的表面积。 金属茂组分可以采用单一茂金属或两种或多种共支撑金属茂的形式。

公开(公告)号：US06878787B2

公开(公告)日：2005-04-12

申请号：US10648716

申请日：2003-08-26

申请人： David John Rauscher ,  William John Gauthier ,  Shady Nader Henry ,  Kai Hortmann

发明人： David John Rauscher ,  William John Gauthier ,  Shady Nader Henry ,  Kai Hortmann

IPC分类号： C08F4/659 ,  C08F4/6592 ,  C08F10/00 ,  C08F110/06 ,  C08F4/42

CPC分类号： C08F10/00 ,  C08F4/65912 ,  C08F4/65927 ,  C08F110/06 ,  Y02P20/52 ,  Y10S526/904 ,  Y10S526/943 ,  C08F4/65916 ,  C08F2500/16 ,  C08F2500/15 ,  C08F2500/12 ,  C08F2500/18

摘要： Supported stereospecific catalysts and processes for the stereotactic propagation of a polymer chain derived from ethylenically unsaturated monomers such as the polymerization of propylene to produce syndiotactic polypropylene or isotactic polypropylene. The supported catalyst comprises a stereospecific metallocene catalyst component and a co-catalyst component comprising an alkylalumoxane. Both the metallocene catalyst component and the co-catalyst component are supported on a particulate polyamide support comprising spheroidical particles of a polyamide having an average diameter with the range of 5-60 microns, and a porosity permitting distribution of a portion of the co-catalyst within the pore volume of the polyamide particles while retaining a substantial portion on the surface of the particles. The polyamide support is characterized by relatively low surface area, specifically a surface area less than 20 square meters per gram. The metallocene component can take the form of a single metallocene or two or more co-supported metallocenes.

摘要翻译： 支持的立体定向催化剂和用于衍生自烯属不饱和单体的聚合物链的立体定向扩散的方法，例如丙烯聚合以产生间同立构聚丙烯或全同立构聚丙烯。 载体催化剂包括立体特异性茂金属催化剂组分和包含烷基铝氧烷的助催化剂组分。 金属茂催化剂组分和助催化剂组分均负载在包含平均直径为5-60微米范围的聚酰胺的球形颗粒的颗粒聚酰胺载体上，并且允许一部分助催化剂分布的孔隙率 在聚酰胺颗粒的孔体积内，同时保留颗粒表面上的实质部分。 聚酰胺载体的特征在于相对较低的表面积，特别是小于20平方米/克的表面积。 金属茂组分可以采用单一茂金属或两种或多种共支撑金属茂的形式。