公开(公告)号：US20220251016A1

公开(公告)日：2022-08-11

申请号：US17629300

申请日：2020-07-24

申请人： CHINA PETROLUM & CHEMICAL CORPORATION ,  BEIJING RESEARCH INSTITUTE OF CHEMICAL INDUSTRY, CHINA PETROLEUM & CHEMICAL CORPORATION

发明人： Jie LIN ,  Xiaofan ZHANG ,  Ting HUANG ,  Junhui ZHANG ,  Junling ZHOU ,  Zhufang SUN ,  Xianzhi XIA ,  Hui ZHAO ,  Zifang GUO ,  Jin ZHAO ,  Haitao LIU ,  Meiyan FU ,  Jigui ZHANG ,  Lin QI ,  Lian YAN ,  Wei CEN ,  Yu WANG

IPC分类号： C07C47/575 ,  C08F110/06 ,  C07C43/21

摘要： A catalyst system for olefin polymerization contains a main catalyst and a cocatalyst. The cocatalyst contains a twelve-membered ring compound represented by formula (M). The catalyst system is suitable for preparing polypropylene products having high stereoregularity and low ash, and can regulate the melt index of the products within a wide range by adjusting the amount of hydrogenation. It is also suitable for copolymerization systems to improve the copolymerization yield.

公开(公告)号：US20210340165A1

公开(公告)日：2021-11-04

申请号：US17286776

申请日：2019-10-15

申请人： CHINA PETROLEUM & CHEMICAL CORPORATION ,  BEIJING RESEARCH INSTITUTE OF CHEMICAL INDUSTRY, CHINA PETROLEUM & CHEMICAL CORPORATION

发明人： Jin ZHAO ,  Xianzhi XIA ,  Yuexiang LIU ,  Yang TAN ,  Chunhong REN ,  Weili LI ,  Long CHEN ,  Futang GAO ,  Yongtai LING ,  Tao LIU

IPC分类号： C07F7/28 ,  C08F110/06

摘要： Disclosed are a catalyst component and a catalyst for olefin polymerization, and an olefin polymerization method. The catalyst component comprises magnesium, titanium, a halogen and an internal electron donor, wherein the internal electron donor comprises a monocarboxylic acid ester compound and a diether compound, and the molar ratio of the monocarboxylic acid ester compound to the diether compound is (0.0035-0.7):1. By using the catalyst, a polymer having both a high isotactic index and a high melt flow index can be prepared.

公开(公告)号：US20230416424A1

公开(公告)日：2023-12-28

申请号：US18250551

申请日：2021-10-26

申请人： CHINA PETROLEUM & CHEMICAL CORPORATION ,  BEIJING RESEARCH INSTITUTE OF CHEMICAL INDUSTRY, CHINA PETROLEUM & CHEMICAL CORPORATION

发明人： Weili LI ,  Xianzhi XIA ,  Junling ZHOU ,  Yuexiang LIU ,  Yongtai LING ,  Tao LIU ,  Jin ZHAO ,  Futang GAO ,  Chunhong REN ,  Yang TAN ,  Long CHEN

IPC分类号： C08F110/06

CPC分类号： C08F110/06

摘要： A solid component for preparing an olefin polymerization catalyst, and a preparation method therefor and an application thereof are provided. The solid component contains: (i) a magnesium compound as represented by the following formula (1), (ii) a Lewis base (LB), and optionally, (iii) metal components other than magnesium. The LB is a compound as shown in general formula (II) or an amide compound as shown in general formula (II′). The solid component has a better particle morphology, and a catalyst prepared by using the solid component as a carrier is less likely to be crushed, and has better stereostructural orientation in olefin polymerization, particularly in propylene polymerization or copolymerization.

公开(公告)号：US20210371552A1

公开(公告)日：2021-12-02

申请号：US17286765

申请日：2019-10-15

申请人： CHINA PETROLEUM & CHEMICAL CORPORATION ,  BEIJING RESEARCH INSTITUTE OF CHEMICAL INDUSTRY, CHINA PETROLEUM & CHEMICAL CORPORATION

发明人： Yongtai LING ,  Xianzhi XIA ,  Yuexiang LIU ,  Weili LI ,  Jin ZHAO ,  Futang GAO ,  Chunhong REN ,  Yang TAN ,  Tao LIU ,  Long CHEN

IPC分类号： C08F4/659 ,  C08F10/06

摘要： A carrier for an olefin polymerization catalyst contains a magnesium-containing compound and sulfur. The sulfur is at least one of an elemental sulfur, a complex sulfur, and a compound sulfur. The carrier has good particle morphology and a smooth surface, and has a narrow particle size distribution. The catalyst prepared from the carrier has high activity and good sensitivity to hydrogen regulation, and can improve the density of a polymer stack when being used for olefin polymerization.

公开(公告)号：US20190218314A1

公开(公告)日：2019-07-18

申请号：US16312962

申请日：2017-06-23

申请人： CHINA PETROLEUM & CHEMICAL CORPORATION ,  BEIJING RESEARCH INSTITUTE OF CHEMICAL INDUSTRY, CHINA PETROLEUM & CHEMICAL CORPORATION

发明人： Xianzhi XIA ,  Tianyi ZHANG ,  Yuexiang LIU ,  Jin ZHAO

IPC分类号： C08F2/01 ,  C08F2/34 ,  B01J8/10 ,  B01J19/18 ,  B01J37/00

CPC分类号： C08F2/01 ,  B01J8/10 ,  B01J19/18 ,  B01J19/1831 ,  B01J37/0072 ,  B01J2219/00033 ,  B01J2219/0004 ,  B01J2219/00094 ,  B01J2219/00166 ,  C08F2/34 ,  C08F4/00 ,  C08F10/00 ,  C08F10/02

摘要： Disclosed is a catalyst pre-contact method for the continuous polymerization of an olefin, wherein a primary catalyst, a co-catalyst and, optionally, an external electron donor are mixed and then undergo a pre-contact reaction, with the pre-contact reaction temperature being −30° C. to 35° C. and adjustable, and the pre-contact reaction time being 0.5 min to 10 min and adjustable, and the pre-contacted catalyst is brought into a catalyst prepolymerization system and then into a catalyst polymerization system, or is directly brought into the catalyst polymerization system. Further disclosed is a catalyst pre-contact device for the continuous polymerization of an olefin, which can adjust the pre-contact time and pre-contact temperature of the catalyst so that the performance of the catalyst achieves a better level according to the process.

公开(公告)号：US20230406965A1

公开(公告)日：2023-12-21

申请号：US18044188

申请日：2021-09-03

申请人： CHINA PETROLEUM & CHEMICAL CORPORATION ,  BEIJING RESEARCH INSTITUTE OF CHEMICAL INDUSTRY, CHINA PETROLEUM & CHEMICAL CORPORATION

发明人： Yongtai LING ,  Junling ZHOU ,  Xianzhi XIA ,  Yuexiang LIU ,  Weili LI ,  Tao LIU ,  Chunhong REN ,  Jin ZHAO ,  Futang GAO ,  Long CHEN ,  Yang TAN

IPC分类号： C08F4/02 ,  C08F4/00

CPC分类号： C08F4/022 ,  C08F2410/06 ,  C08F4/005

摘要： A spherical carrier for olefin polymerization catalysts has at least one magnesium-containing compound having a structure represented by formula (1). The spherical carrier has a relatively good particle morphology, and substantially no abnormally morphological particles will appear. A method for preparing the spherical carrier can be used to prepare a carrier having a small particle size and greatly expands the particle size range of the preparable carrier. When the catalyst prepared by using the carrier is used for olefin polymerization, polymerization activity is good, substantially no abnormally morphological material is present, and hydrogen response is good.

公开(公告)号：US20230391907A1

公开(公告)日：2023-12-07

申请号：US18248996

申请日：2021-10-15

申请人： CHINA PETROLEUM & CHEMICAL CORPORATION ,  BEIJING RESEARCH INSTITUTE OF CHEMICAL INDUSTRY, CHINA PETROLEUM & CHEMICAL CORPORATION

发明人： Jin ZHAO ,  Junling ZHOU ,  Xianzhi XIA ,  Yuexiang LIU ,  Tao LIU ,  Yongtai LING ,  Weili LI ,  Futang GAO ,  Long CHEN ,  Yang TAN ,  Chunhong REN

IPC分类号： C08F210/06 ,  C08F210/08 ,  C08F4/646 ,  C08F4/654 ,  C08F4/643 ,  C08F4/649

CPC分类号： C08F210/06 ,  C08F210/08 ,  C08F4/6465 ,  C08F4/6543 ,  C08F4/6435 ,  C08F4/6437 ,  C08F4/6497

摘要： A copolymer contains, based on the total amount of structural units of the copolymer, 90-99 mol % of propylene structural units and 1-10 mol % of butene structural units. The xylene solubles content of the copolymer is less than or equal to 4 wt %, and preferably less than or equal to 3 wt %. The propylene-butene copolymer is substantially free of fraction having a molecular weight lower than 1000. The copolymer has a melt flow index of greater than or equal to 20 g/10 min as measured at 230° C. under a load of 2.16 kg. The propylene-butene copolymer has a high melt flow index and few xylene solubles, and does not contain a phthalate-type plasticizer, and can be used in fields such as food and medical and health services.