公开(公告)号：US09611345B2

公开(公告)日：2017-04-04

申请号：US14785306

申请日：2014-04-15

Applicant: RELIANCE INDUSTRIES LIMITED

Inventor： Mahuya Bagui ,  Yogesh Popatrao Patil ,  Viralkumar Patel ,  Krishna Renganath Sarma ,  Raksh Vir Jasra ,  Ajit Behari Mathur ,  Suketu Vakil

IPC: C08F4/76 ,  C08F4/64 ,  C08F110/02 ,  C07F7/00 ,  B01J31/22 ,  C07F7/28

CPC classification number: C08F110/02 ,  B01J31/2243 ,  B01J2531/0252 ,  B01J2531/46 ,  B01J2531/49 ,  B01J2531/56 ,  B01J2531/57 ,  B01J2531/58 ,  B01J2531/66 ,  B01J2531/72 ,  B01J2531/74 ,  B01J2531/842 ,  C07F7/003 ,  C07F7/28 ,  C08F10/02 ,  C08F4/64189 ,  C08F2500/01 ,  C08F2500/18 ,  C08F2500/17 ,  C08F2500/24

Abstract: The present disclosure relates to a transition metal based pro-catalyst represented by Formula I: wherein, the substituents have the meaning as defined in the specification. The present disclosure also relates to a process for preparing the transition metal based pro-catalyst represented by Formula I and the catalyst composition obtained therefrom. Further, the present disclosure relates to a process for polymerizing olefins by employing the catalyst composition comprising the transition metal based pro-catalyst represented by Formula I.

公开(公告)号：US10030121B2

公开(公告)日：2018-07-24

申请号：US15088947

申请日：2016-04-01

Applicant: Reliance Industries Limited

Inventor： Mahuya Bagui ,  Yogesh Popatrao Patil ,  ViralKumar Patel ,  Krishna Renganath Sharma ,  Raksh Vir Jasra ,  Ajit Behari Mathur ,  Uma Sankar Satpathy ,  Satya Srinivasa Rao Gandham

IPC: C08F8/00 ,  C08K5/3417 ,  C08F110/02 ,  C08K5/00

Abstract: A catalyst composition and a process for obtaining a colored olefin polymer are disclosed. The composition comprises a Ziegler-Natta catalyst and an additive component comprising a colorant. The catalyst composition enables a directly colored polymer to be prepared. The colored polymer has a homogeneous dispersion of the colorant in it and thus has no color defects.

公开(公告)号：US09884927B2

公开(公告)日：2018-02-06

申请号：US14655994

申请日：2013-12-13

Applicant: Reliance Industries Limited

Inventor： Krishna Renganath Sarma ,  Yogesh Popatrao Patil ,  Viralkumar Patel ,  Mahuya Bagui ,  Ajit Behari Mathur ,  Raksh Vir Jasra ,  Suketu Vakil ,  Vijay Shivaji Kadam ,  Uma Sankar Satpathy ,  Satya Srinivasa Rao Gandham ,  Jyotindra Bachubhai Patel ,  Mitul Sureshchandra Sheth

IPC: C08F4/654 ,  C08F4/655 ,  C08F4/656 ,  C08F10/02 ,  C08F110/02 ,  C08F4/649 ,  C08F4/642 ,  C08F4/645 ,  C08F10/00

CPC classification number: C08F110/02 ,  C08F4/6425 ,  C08F4/6426 ,  C08F4/6455 ,  C08F4/6457 ,  C08F4/649 ,  C08F10/00 ,  C08F2500/01 ,  C08F2500/17 ,  C08F2500/18 ,  C08F2500/24 ,  C08F4/6465 ,  C08F4/654

Abstract: The present disclosure provides a heterogeneous Ziegler-Natta catalyst system to be used in the preparation of ultra-high molecular weight polymers (UHMWP). The system includes at least one procatalyst, at least one co-catalyst, at least one hydrocarbon medium and at least one external donor, wherein the ratio of elemental magnesium to elemental titanium to halide, in the procatalyst, is 1:1.3:3.7; the ratio of elemental aluminum, present in the co-catalyst to elemental titanium, present in the procatalyst, ranges between 6:1 and 12:1; and the ratio of elemental silicon, present in the external donor to elemental titanium, present in the procatalyst, ranges between 1:10 and 10:1. The present disclosure also provides a process for preparation of UHMWPE using the heterogeneous Ziegler-Natta catalyst system of the present disclosure.

公开(公告)号：US10544243B2

公开(公告)日：2020-01-28

申请号：US15114490

申请日：2015-02-16

Applicant: Reliance Industries Limited

Inventor： Yogesh Popatrao Patil ,  Krishna Renganath Sarma ,  Mahuya Bagui ,  Viralkumar Patel ,  Raksh Vir Jasra ,  Ajit Behari Mathur ,  Suketu Vakil

IPC: C08F110/02 ,  C08F4/648

Abstract: The present disclosure provides a Ziegler-Natta catalyst composition for preparing polymers of ethylene monomers having ultrahigh molecular weight, said composition comprises (i) a pro-catalyst component containing a reaction product of a magnesium containing compound and a titanium containing compound, characterized in that said pro-catalyst component comprises magnesium, titanium and chlorine in an amount ranging between 15 and 18 mole %; 20 and 23 mole %; and 60 and 64 mole %, respectively, all proportions being with respect to the total weight of the Ziegler-Natta catalyst composition; (ii) a co-catalyst component; and (iii) at least one external electron donor compound selected from the group of organosilane compounds having the general formula (I), wherein R1, R2, R3 and R4 are all the same or all are different, or some are the same, and are individually selected from the group consisting of linear or branched alkyl groups, cycloalkyl groups, aryl groups, alkoxy and aryloxy groups.

公开(公告)号：US20160289422A1

公开(公告)日：2016-10-06

申请号：US15088947

申请日：2016-04-01

Applicant: Reliance Industries Limited

Inventor： Mahuya Bagui ,  Yogesh Popatrao Patil ,  ViralKumar Patel ,  Krishna Renganath Sharma ,  Raksh Vir Jasra ,  Ajit Behari Mathur ,  Uma Sankar Satpathy ,  Satya Srinivasa Rao Gandham

IPC: C08K5/3417 ,  C08F110/02

CPC classification number: C08K5/3417 ,  C08F110/02 ,  C08F2410/01 ,  C08K5/0091 ,  C08L23/06 ,  C08F4/6425 ,  C08F2500/18

Abstract: A catalyst composition and a process for obtaining a colored olefin polymer are disclosed. The composition comprises a Ziegler-Natta catalyst and an additive component comprising a colorant. The catalyst composition enables a directly colored polymer to be prepared. The colored polymer has a homogeneous dispersion of the colorant in it and thus has no color defects.

Abstract translation: 公开了一种催化剂组合物和获得着色烯烃聚合物的方法。 组合物包含齐格勒 - 纳塔催化剂和包含着色剂的添加剂组分。 催化剂组合物可以制备直接着色的聚合物。 着色聚合物在其中具有均匀的着色剂分散体，因此没有颜色缺陷。

公开(公告)号：US20150344593A1

公开(公告)日：2015-12-03

申请号：US14655994

申请日：2013-12-13

Applicant: RELIANCE INDUSTRIES LIMITED

Inventor： Krishna Renganath Sarma ,  Yogesh Popatrao Patil ,  Viralkumar Patel ,  Mahuya Bagui ,  Ajit Behari Mathur ,  Raksh Vir Jasra ,  Suketu Vakil ,  Vijay Shivaji Kadam ,  Uma Sankar Satpathy ,  Satya Srinivasa Rao Gandham ,  Jyotindra Bachubhai Patel ,  Mitul Sureshchandra Sheth

IPC: C08F110/02

CPC classification number: C08F110/02 ,  C08F4/6425 ,  C08F4/6426 ,  C08F4/6455 ,  C08F4/6457 ,  C08F4/649 ,  C08F10/00 ,  C08F2500/01 ,  C08F2500/17 ,  C08F2500/18 ,  C08F2500/24 ,  C08F4/6465 ,  C08F4/654

Abstract: The present disclosure provides a heterogeneous Ziegler-Natta catalyst system to be used in the preparation of ultra-high molecular weight polymers (UHMWP). The system includes at least one procatalyst, at least one co-catalyst, at least one hydrocarbon medium and at least one external donor, wherein the ratio of elemental magnesium to elemental titanium to halide, in the procatalyst, is 1:1.3:3.7; the ratio of elemental aluminum, present in the co-catalyst to elemental titanium, present in the procatalyst, ranges between 6:1 and 12:1; and the ratio of elemental silicon, present in the external donor to elemental titanium, present in the procatalyst, ranges between 1:10 and 10:1. The present disclosure also provides a process for preparation of UHMWPE using the heterogeneous Ziegler-Natta catalyst system of the present disclosure.

Abstract translation: 本公开提供了用于制备超高分子量聚合物（UHMWP）的异质齐格勒 - 纳塔催化剂体系。 该系统包括至少一种前催化剂，至少一种助催化剂，至少一种烃介质和至少一种外部供体，其中在前催化剂中元素镁与元素钛与卤化物的比例为1:1.3:3.7; 存在于前催化剂中的助催化剂中元素钛的元素铝的比例在6:1至12:1之间; 存在于前催化剂中的存在于外部供体与元素钛的元素硅的比例在1:10和10:1之间。 本公开还提供了使用本公开的异源齐格勒 - 纳塔催化剂体系制备UHMWPE的方法。