公开(公告)号：US06809168B2

公开(公告)日：2004-10-26

申请号：US10406036

申请日：2003-04-02

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

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

IPC: C08F23620

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 &agr;,&ohgr;-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 &agr;,&ohgr;-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.

公开(公告)号：US5629253A

公开(公告)日：1997-05-13

申请号：US586362

申请日：1996-01-16

Applicant: Main Chang

Inventor： Main Chang

IPC: C08F4/619 ,  C08F4/6192 ,  C08F4/64 ,  C08F10/00

CPC classification number: C08F10/00 ,  C08F4/61912 ,  C08F4/61916 ,  C08F4/61922 ,  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 bulky ligand transition metal catalyst which when utilized in a polymerization process substantially reduces the reactor fouling and sheeting particularly in a slurry phase polymerization process.

Abstract translation: 本发明通常涉及用于聚合烯烃的负载型催化剂体系。 用于支撑本发明的催化剂的方法提供了一种负载的大体积配体过渡金属催化剂，其在聚合过程中使用时，特别是在淤浆相聚合方法中基本上减少了反应器结垢和压片。

公开(公告)号：US5373072A

公开(公告)日：1994-12-13

申请号：US046676

申请日：1993-04-14

Applicant: Main Chang

Inventor： Main Chang

IPC: C08F4/642 ,  C08F4/02 ,  C08F4/60 ,  C08F4/602 ,  C08F4/639 ,  C08F4/6392 ,  C08F4/656 ,  C08F4/658 ,  C08F4/6592 ,  C08F10/00 ,  C08F4/44

CPC classification number: C08F10/00 ,  C08F4/63912 ,  C08F4/63916 ,  C08F4/6392 ,  Y10S526/943

Abstract: This invention relates to a supported catalyst composition useful in the polymerization of olefins and to a method for its production. The invention particularly relates to the use of undehydrated silica gel containing from about 6 to about 20 per cent by weight adsorbed water as the catalyst support material. The catalyst is formed by first reacting a trialkylaluminum compound with a metallocene, and subsequently reacting the resulting material with the undehydrated silica gel. The resulting supported metallocene-alumoxane catalyst has a level of activity comparable to that of conventionally made supported catalysts which are achieved at active metal loadings which are reduced from the loadings used in the previously known metallocene-alumoxane catalysts by at least 20%, and preferably 50%.

Abstract translation: 本发明涉及可用于烯烃聚合的负载型催化剂组合物及其制备方法。 本发明特别涉及含有约6至约20重量％的吸附水作为催化剂载体材料的未脱水硅胶的用途。 催化剂通过首先使三烷基铝化合物与金属茂反应形成，然后使所得材料与未脱水硅胶反应。 得到的负载型茂金属 - 铝氧烷催化剂具有与常规制备的负载型催化剂相当的活性水平，其活性金属负荷达到，其从先前已知的金属茂 - 铝氧烷催化剂中使用的负载量减少至少20％，优选 50％。

公开(公告)号：US4937217A

公开(公告)日：1990-06-26

申请号：US263572

申请日：1988-10-27

Applicant: Main Chang

Inventor： Main Chang

IPC: C08F4/658 ,  C08F4/60 ,  C08F4/639 ,  C08F4/6392 ,  C08F4/642 ,  C08F4/659 ,  C08F4/6592 ,  C08F10/00

CPC classification number: C08F10/00 ,  C08F4/65912 ,  C08F4/65916 ,  C08F4/6592 ,  C08F4/65925 ,  Y10S526/943

Abstract: This invention relates to a process for preparing a supported metallocene alumoxane catalyst for use in the polymerization of olefins. The invention particularly relates to the use of silica gel containing from about 6 to about 20 percent by weight adsorbed water as the catalyst support material. It has been found that such silica gel may be safely added to an trialkyl aluminum solution, preferably a mixed trimethylaluminum-triethylaluminum 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 dryed to free flowing powder. The dry free flowing powder may then be used as a supported metallocene alumoxane catalyst complex for gas phase or liquid phase polymerization of olefins.

Abstract translation: 本发明涉及制备用于烯烃聚合的负载金属茂铝氧烷催化剂的方法。 本发明特别涉及含有约6至约20重量％吸附水的硅胶作为催化剂载体材料的用途。 已经发现，这种硅胶可以安全地加入到三烷基铝溶液中，优选混合的三甲基铝 - 三乙基铝溶液，以通过与硅胶催化剂载体材料的吸附水含量直接反应形成催化剂体系的铝氧烷组分 。 形成铝氧烷涂覆的硅胶，可以加入茂金属，并将所得的材料干燥成自由流动的粉末。 然后可将干燥的自由流动的粉末用作用于烯烃气相或液相聚合的负载金属茂铝氧烷催化剂络合物。

公开(公告)号：US4935394A

公开(公告)日：1990-06-19

申请号：US234231

申请日：1988-08-19

Applicant: Main Chang

Inventor： Main Chang

IPC: C08F4/658 ,  C08F4/60 ,  C08F4/614 ,  C08F4/64 ,  C08F10/00

CPC classification number: C08F10/00

Abstract: This invention provides new supported catalyst compositions for the polymerization of 1-olefins, together with processes for preparing and using the catalysts. The catalyst compositions include two catalyst components. The first catalyst component is formed by reacting a halogen-containing compound of the formula: H.sub.a M.sup.1 X.sup.1.sub.b R.sup.1.sub.(c-b-a) wherein M.sup.1 is boron, carbon, silicon or mixtures thereof; X.sup.1 is Cl, Br or mixtures thereof; R.sup.1 is a hydrocarbyl or alkoxy radical; with a mixture produced by contacting a finely divided porous inorganic oxide support in an inert solvent with a solution made by combining a magnesium dihydrocarbyloxide dissolved in an inert solvent, and of the formula: Mg(OR.sup.2).sub.2 wherein R.sup.2 is a hydrocarbyl radical, with a transition metal hydrocarbyloxide of the formula: M.sup.2 (OR.sup.3).sub.y wherein M.sup.2 is a transition metal from Group IVB, VB, and VIB of the Periodic Table; and R.sup.3 is a hydrocarbyl radical. The second catalyst component of the new catalyst compositions is an organometal compound of the formula: M.sup.3 R.sup.4.sub.e-f X.sub.f wherein M.sup.3 is aluminum, magnesium, zinc or mixtures thereof; R.sup.4 is a saturated hydrocarbyl radical; X is hydrogen, halogen or an alkoxy. In a preferred aspect of the invention, the solution made by combining the magnesium dihydrocarbyloxide, dissolved in an inert solvent, with the transition metal hydrocarbyloxide, is reacted with a carboxylic acid derivative, of the formula R.sup.5 COZ, wherein R.sup.5 is a hydrocarbyl radical and Z is a halogen atom or an alkoxy radical. An important characteristic of this invention is that the new catalyst compositions give significantly higher hydrogen and comonomer responses and greater productivity with larger average particle size and higher bulk density than with at least certain state of the art catalysts.

Abstract translation: 本发明提供了用于1-烯烃聚合的新的负载型催化剂组合物，以及制备和使用催化剂的方法。 催化剂组合物包括两种催化剂组分。 第一催化剂组分通过使下式的卤素化合物：其中M1为硼，碳，硅或其混合物的其中的HalM1X1bR1（c-b-a） X1是Cl，Br或其混合物; R1是烃基或烷氧基; 与通过将溶解在惰性溶剂中的二氢氧化镁镁组合而成的溶液与惰性溶剂中的细碎的多孔无机氧化物载体接触而制备的混合物和下式：其中R 2为烃基的Mg（OR 2）2与 式（Ⅳ）的过渡金属烃氧基化物，其中M2是元素周期表第IVB族，ⅤB族和ⅥB族的过渡金属; 并且R 3是烃基。 新催化剂组合物的第二催化剂组分是下式的有机金属化合物：M3R4e-fXf，其中M3是铝，镁，锌或其混合物; R4是饱和烃基; X是氢，卤素或烷氧基。 在本发明的优选方面，通过将溶解在惰性溶剂中的二氢马来酰亚胺与过渡金属烃氧化物组合制备的溶液与式R 5 CO 3的羧酸衍生物反应，其中R 5是烃基，Z 是卤原子或烷氧基。 本发明的一个重要特征是，与至少某些现有技术的催化剂相比，新的催化剂组合物提供显着更高的氢和共聚单体响应并且具有更大的平均粒度和更高堆积密度的生产率。