公开(公告)号：US4914253A

公开(公告)日：1990-04-03

申请号：US267216

申请日：1988-11-04

Applicant: Main Chang

Inventor： Main Chang

IPC: C08F2/34 ,  C08F4/02 ,  C08F4/60 ,  C08F4/622 ,  C08F4/642 ,  C08F4/659 ,  C08F4/6592 ,  C08F8/00 ,  C08F10/02 ,  C08F110/02

CPC classification number: C08F110/02 ,  C08F10/02 ,  C08F4/65912 ,  C08F4/65916 ,  C08F4/6592 ,  Y10S526/901 ,  Y10S526/943

Abstract: This invention relates to a process for preparing polyethylene wax having a narrow molecular weight distribution in a gas phase polymerization reactor. The invention particularly relates to the process of polymerizing ethylene in the presence of a supported metallocene-alumoxane catalyst and hydrogen. The catalyst may be derived from the addition of silica gel containing about 6 to about 20 percent by weight adsorbed water to a trialkylaluminum solution. An alumoxane coated silica gel is formed to which a metallocene may be added and the resulting material dried to free flowing powder. A trimethylaluminum pretreated metallocene may be employed when the trialkylaluminum is selected from the group consisting of triethylaluminum, tripropylaluminum, tri-n-butyl-aluminum, tri-isobutylaluminum, tri(2-methylpentyl)aluminum, trihexylaluminum, tri-n-octylaluminum and tri-n-decylaluminum.

公开(公告)号：US4814310A

公开(公告)日：1989-03-21

申请号：US134413

申请日：1987-12-17

Applicant: Main Chang

Inventor： Main Chang

Abstract: This invention relates to a process for preparing a supported metallocene alumoxane catalyst for use in the gas phase polymerization of olefins. The invention particularly relates to the use of silica gel containing from about 6 to about 10 percent by weight adsorbed water as the catalyst support material. It has been found that such silica gel may be safely added to an aluminum trialkyl solution to form by direct reaction with the adsorbed water content of the silica gel catalyst support material the alumoxane component of the catalyst system. An alumoxane coated silica gel is formed to which a metallocene may be added and the resulting material dried to free flowing powder. The dry free flowing powder may then be used as a supported metalllocene alumoxane catalyst complex for gas phase polymerization of olefins.

公开(公告)号：US09217047B2

公开(公告)日：2015-12-22

申请号：US14255050

申请日：2014-04-17

Applicant: Main Chang

Inventor： Main Chang

IPC: C08F110/06

CPC classification number: C08F110/06 ,  C08F4/6494 ,  C08F2500/12 ,  C08F4/651 ,  C08F4/6543 ,  C08F4/6545

Abstract: The presently disclosed and claimed inventive concept(s) relates to solid catalyst components comprising titanium, magnesium, halogen and an internal electron donor compound having at least one ester group and at least one alkoxy group, and catalyst systems containing the catalyst solid components, organoaluminum compounds, and organosilicon compounds. The presently disclosed and claimed inventive concept(s) further relates to methods of making the catalyst components and the catalyst systems, and methods of polymerizing or copolymerizing alpha-olefins using the catalyst systems.

Abstract translation: 目前公开和要求保护的发明构思涉及包含钛，镁，卤素和具有至少一个酯基和至少一个烷氧基的内电子给体化合物的固体催化剂组分，以及含有催化剂固体组分的催化剂体系，有机铝 化合物和有机硅化合物。 目前公开和要求保护的发明构思还涉及制备催化剂组分和催化剂体系的方法，以及使用催化剂体系聚合或共聚α-烯烃的方法。

公开(公告)号：US08227370B2

公开(公告)日：2012-07-24

申请号：US12943512

申请日：2010-11-10

Applicant: Main Chang

Inventor： Main Chang

IPC: C08F4/60 ,  C08F2/00 ,  B01J31/00

CPC classification number: C08F10/00 ,  C08F110/06 ,  C08F2500/04 ,  C08F2500/12 ,  C08F4/651

Abstract: A catalyst system containing (a) a solid catalyst component containing a titanium halide, a magnesium halide, a first internal electron donor compound, and a second internal electron donor compound, (b) an organoaluminum compound, and (c) an external electron donor compound is disclosed. The first internal electron donor compound contains at least one ether group and at least one ketone group. The second internal electron donor compound is a 1,8-naphthyl diester compound. Methods of polymerizing or copolymerizing alpha-olefins using the catalyst system also are disclosed.

Abstract translation: 一种催化剂体系，其包含（a）含有卤化钛，卤化镁，第一内部电子给体化合物和第二内部电子给体化合物的固体催化剂组分，（b）有机铝化合物和（c）外部电子给体 公开了化合物。 第一内给电子体化合物含有至少一个醚基和至少一个酮基。 第二内电子给体化合物是1,8-萘基二酯化合物。 还公开了使用催化剂体系聚合或共聚α-烯烃的方法。

公开(公告)号：US20110294970A1

公开(公告)日：2011-12-01

申请号：US12786701

申请日：2010-05-25

Applicant: Main Chang ,  Thomas Garoff

Inventor： Main Chang ,  Thomas Garoff

IPC: C08F4/76 ,  B01J31/14 ,  C07F7/18

CPC classification number: C08F110/02 ,  C08F2500/12 ,  C08F4/651 ,  C08F4/6565

Abstract: The present invention relates to solid catalyst components comprising a reaction product of a titanium compound, a magnesium compound, an alcohol, an aluminum alkoxide, a siloxane mixture, and a maleate derivative; and catalyst systems comprising the solid catalyst components and organoaluminum compounds. The present invention also relates to methods of making the solid catalyst components and the catalyst systems, and methods of polymerizing or copolymerizing ethylene using the catalyst systems.

Abstract translation: 本发明涉及包含钛化合物，镁化合物，醇，醇铝，硅氧烷混合物和马来酸衍生物的反应产物的固体催化剂组分; 和包含固体催化剂组分和有机铝化合物的催化剂体系。 本发明还涉及制备固体催化剂组分和催化剂体系的方法，以及使用催化剂体系聚合或共聚乙烯的方法。

公开(公告)号：US20110152481A1

公开(公告)日：2011-06-23

申请号：US12655007

申请日：2009-12-21

Applicant: Main Chang

Inventor： Main Chang

IPC: C08F4/50 ,  B01J31/14

CPC classification number: C08F10/00 ,  C08F110/06 ,  C08F2500/12 ,  C08F4/651 ,  C08F4/6494

Abstract: The present invention relates to catalyst systems containing solid catalyst components comprising titanium, magnesium, halogen and a 1,8-naphthyl diaryloate internal electron donor compound; organoaluminum compounds and alkyl benzoate derivatives as external electron donors. The present invention also relates to methods of making the catalyst systems, and methods of polymerizing or copolymerizing alpha-olefins using the catalyst systems.

Abstract translation: 本发明涉及含有固体催化剂组分的催化剂体系，其中包括钛，镁，卤素和1,8-萘基二异辛烯内电子给体化合物; 有机铝化合物和苯甲酸烷基酯衍生物作为外部电子给体。 本发明还涉及制备催化剂体系的方法，以及使用催化剂体系聚合或共聚α-烯烃的方法。

公开(公告)号：US07700513B2

公开(公告)日：2010-04-20

申请号：US11753471

申请日：2007-05-24

Applicant: Zhidong Zhu ,  Main Chang

Inventor： Zhidong Zhu ,  Main Chang

IPC: C08F4/02 ,  B01J31/38

CPC classification number: C08F110/06 ,  C08F210/16 ,  C08F4/6545 ,  C08F4/651 ,  C08F4/025 ,  C08F2500/18 ,  C08F2500/12 ,  C08F2500/24 ,  C08F210/06

Abstract: Disclosed are catalyst systems and methods of making the catalyst systems for the polymerization of an olefin containing a solid titanium catalyst component containing an inorganic titanium compound, a magnesium alcohol adduct made from an inorganic magnesium compound and an alcohol, and a porous support having at least one of a certain specific surface area, a certain pore volume, and a certain median particle size. The catalyst system may further contain an organoaluminum compound and optionally an organosilicon compound. Also disclosed are methods of making polyolefins.

Abstract translation: 公开了催化剂体系和制备用于聚合含有含有无机钛化合物的固体钛催化剂组分的烯烃的催化剂体系，由无机镁化合物和醇制成的镁醇加合物的催化剂体系和至少具有至少 一定的比表面积，一定的孔体积和一定的中值粒径之一。 催化剂体系还可以含有有机铝化合物和任选的有机硅化合物。 还公开了制备聚烯烃的方法。

公开(公告)号：US06977287B2

公开(公告)日：2005-12-20

申请号：US10602177

申请日：2003-06-24

Applicant: Pawan Kumar Agarwal ,  Weiqing Weng ,  Aspy K. Mehta ,  Armenag H. Dekmezian ,  Main Chang ,  Rajan K. Chudgar ,  Christopher R. Davey ,  Chon-Yie Lin ,  Galen C. Richeson ,  Palanisamy Arjunan ,  Olivier Jean Georjon

Inventor： Pawan Kumar Agarwal ,  Weiqing Weng ,  Aspy K. Mehta ,  Armenag H. Dekmezian ,  Main Chang ,  Rajan K. Chudgar ,  Christopher R. Davey ,  Chon-Yie Lin ,  Galen C. Richeson ,  Palanisamy Arjunan ,  Olivier Jean Georjon

IPC: C08F4/659 ,  C08F4/6592 ,  C08F110/06 ,  C08F210/06 ,  C08L23/14 ,  C08L23/16 ,  C08F236/20

CPC classification number: C08F4/65927 ,  C08F4/65908 ,  C08F4/65912 ,  C08F4/65916 ,  C08F110/06 ,  C08F210/06 ,  C08L23/14 ,  C08L23/145 ,  C08L23/16 ,  C08L2666/04 ,  C08F236/20 ,  C08F2500/12 ,  C08F2500/03 ,  C08F2500/04 ,  C08F2500/26

Abstract: The co-polymerization reaction of one or more olefin monomers, such as propylene, with α,ω-diene units and the resulting copolymers are provided. More specifically, the copolymer may have from 90 to 99.999 weight percent of olefins and from 0.001 to 2.000 weight percent of α,ω-dienes. The copolymer may have a weight average molecular weight in the range from 50,000 to 2,000,000, a crystallization temperature in the range from 115° C. to 135° C. and a melt flow rate in the range from 0.1 dg/min to 100 dg/min. These copolymers may be employed in a wide variety of applications, the articles of which include, for example, films, fibers, such as spunbonded and meltblown fibers, fabrics, such as nonwoven fabrics, and molded articles. The copolymer may further include at least two crystalline populations. Desirably, the melting point range of one of the crystalline populations is distinguishable from the melting point range of another crystalline population by a temperature range of from 1° C. to 8° C. More desirably, one of the crystalline populations has a melting point in the range from 152° C. to 158° C. and another crystalline population has a melting point in the range from 142° C. to 148° C.

Abstract translation: 提供一种或多种烯烃单体如丙烯与α，ω-二烯单元和所得共聚物的共聚反应。 更具体地说，共聚物可以具有90至99.999重量％的烯烃和0.001至2.000重量％的α，ω-二烯。 该共聚物的重均分子量可以在50,000至2,000,000范围内，结晶温度在115℃至135℃的范围内，熔体流动速率在0.1dg / min至100dg / 分钟 这些共聚物可以用于各种应用中，其制品包括例如膜，纤维，例如纺粘和熔喷纤维，织物如无纺织物和模塑制品。 该共聚物可进一步包括至少两个结晶群。 理想地，一种结晶群体的熔点范围与另一结晶群体的熔点范围可以区别在1℃至8℃的温度范围内。更期望的是，一个结晶群体具有熔点 在152℃至158℃的范围内，另一结晶群的熔点范围为142℃至148℃。

公开(公告)号：US20050164873A1

公开(公告)日：2005-07-28

申请号：US10766644

申请日：2004-01-28

Applicant: Zhidong Zhu ,  Main Chang

Inventor： Zhidong Zhu ,  Main Chang

IPC: C08F10/00 ,  C08F110/06 ,  B01J31/00

CPC classification number: C08F10/00 ,  C08F110/06 ,  C08F4/6465 ,  C08F4/6565 ,  C08F2500/12 ,  C08F2500/18 ,  C08F2500/24

Abstract: Disclosed are catalyst systems and methods of making the catalyst systems/supports for the polymerization of an olefin containing a solid titanium catalyst component having a substantially spherical shape and containing a titanium compound and a support made from a magnesium compound and an alkyl silicate. The catalyst system may further contain an organoaluminum compound and an organosilicon compound. Also disclosed are methods of making an impact copolymer involving polymerizing an olefin to provide a polyolefin matrix and polymerizing a polyolefin rubber using a solid titanium catalyst component containing a titanium compound and a support made from a magnesium compound and an alkyl silicate.

Abstract translation: 公开了催化剂体系和制备催化剂体系/载体的方法，所述催化剂体系/载体用于聚合具有基本上球形的固体钛催化剂组分的烯烃，并含有钛化合物和由镁化合物和烷基硅酸酯制成的载体。 催化剂体系可以进一步含有有机铝化合物和有机硅化合物。 还公开了制备包含使烯烃聚合以提供聚烯烃基质并使用含有钛化合物的固体钛催化剂组分和由镁化合物和烷基硅酸酯制成的载体聚合聚烯烃橡胶的冲击共聚物的方法。

公开(公告)号：US06734267B2

公开(公告)日：2004-05-11

申请号：US10430962

申请日：2003-05-06

Applicant: Main Chang

Inventor： Main Chang

IPC: C08F444

CPC classification number: C08F10/00 ,  C08F4/61912 ,  C08F4/61916 ,  C08F110/02 ,  Y10S526/943

Abstract: This invention is generally directed toward a supported catalyst system useful for polymerizing olefins. The method for supporting the catalyst of the invention provides for a supported metallocene catalyst formed by vacuum or pressurized impregnation.

Abstract translation: 本发明通常涉及用于聚合烯烃的负载型催化剂体系。 支持本发明的催化剂的方法提供了通过真空或加压浸渍形成的负载金属茂催化剂。