Patents by Inventor Dongbing Liu
Dongbing Liu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11971452Abstract: A device and a method for nondestructively detecting a transient characteristic of a conductive screw of a turbo-generator rotor are provided. The device includes a personal computer (PC), an extremely-steep pulse generator, an ultra-high-frequency double-isolation transformer, and a pulse emitting and coupling module, which are connected in sequence. The pulse emitting and coupling module is connected to a load. A synchronous pulse receiving non-inductive divider circuit synchronously receives a characteristic waveform from the load, and the synchronous pulse receiving non-inductive divider circuit is connected to an ultra-high-speed analog/digital (A/D) module through a nonlinear saturation amplifying circuit that amplifies a signal. The PC receives a signal from the ultra-high-speed A/D module. The load includes a positive or negative excitation lead loop that is in a 180° symmetrical and instantaneous short-circuit state and a rotor shaft.Type: GrantFiled: April 25, 2021Date of Patent: April 30, 2024Assignee: HANGZHOU HENUOVA TECHNOLOGY CO., LTD.Inventors: Yuewu Zhang, Jianxi Liu, Yanxing Bao, Weihua Zha, Qianyi Zhang, Dongbing Liu, Weixing Yang, Xu Han, Miaoye Li, Zirui Wang, Junliang Liu, Jie Luo, Weitao Shen, Yu Fu, Han Gao
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Publication number: 20240120932Abstract: Embodiments of the disclosure provide a circuit, chip, system, and method for eliminating random perturbation. The circuit includes a weight calculating module for receiving digital signals and random perturbation digital quantity, using least mean square error algorithm to calculate weight deviation iteration coefficient based on digital signal and digital quantity, and updating perturbation weight in real-time according to weight deviation iteration coefficient; and a perturbation eliminating module for eliminating perturbation signal in output digital signal of quantizer according to perturbation weight updated in real-time and updating perturbation weight in real-time according to weight deviation iteration coefficient, and then calculating current perturbation weight in real time to realize self-calibration of perturbation weight.Type: ApplicationFiled: December 3, 2023Publication date: April 11, 2024Applicant: Chongqing GigaChip Technology Co., Ltd.Inventors: Yabo NI, Yong ZHANG, Xiaofeng SHEN, Ting LI, Lu LIU, Can ZHU, Jiahao PENG, Liang LI, Dongbing FU, Jianan WANG
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Publication number: 20230257499Abstract: A preparation method for a copolymer includes the step(s) of contacting an olefin and an unsaturated carboxylic acid shown in Formula II or a derivative of the unsaturated carboxylic acid shown in Formula II with a catalyst and optionally a chain transfer agent for reaction in the presence of an alkane solvent to obtain the copolymer. The copolymer is a spherical and/or spherical-like copolymer.Type: ApplicationFiled: April 21, 2023Publication date: August 17, 2023Inventors: Rong GAO, Zifang GUO, Junling ZHOU, Dongbing LIU, Jie FU, Jingjing LAI, Tingjie HUANG, Shiyuan XU, Xinyang LI
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Publication number: 20230235098Abstract: Disclosed are a spherelike supermacroporous mesoporous material, a polyolefin catalyst, and a preparation method therefor and an olefin polymerization process. The spherelike supermacroporous mesoporous material has a twodimensional hexagonal ordered pore channel structures. The mesoporous material has an average pore size of 10 nm to 15 nm, a specific surface area of 300 m2/g to 400 m2/g, and an average particle size of 1 µm to 3 µm, based on the total mass of the mesoporous material. The mass content of water in the mesoporous material is < 1 ppm. The mass content of oxygen in the mesoporous material is < 1 ppm. When a polyolefin catalyst prepared with the mesoporous material as a carrier is used for an olefin polymerization reaction, the a polyolefin product with a narrow molecular weight distribution and a good melt index can be obtained.Type: ApplicationFiled: October 30, 2020Publication date: July 27, 2023Inventors: Yu KANG, Xinping LYU, Dongbing LIU, Zifang GUO, Hongmei LIU, Bingyi LI, Ruen WANG
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Publication number: 20230168303Abstract: A device and a method for nondestructively detecting a transient characteristic of a conductive screw of a turbo-generator rotor are provided. The device includes a personal computer (PC), an extremely-steep pulse generator, an ultra-high-frequency double-isolation transformer, and a pulse emitting and coupling module, which are connected in sequence. The pulse emitting and coupling module is connected to a load. A synchronous pulse receiving non-inductive divider circuit synchronously receives a characteristic waveform from the load, and the synchronous pulse receiving non-inductive divider circuit is connected to an ultra-high-speed analog/digital (A/D) module through a nonlinear saturation amplifying circuit that amplifies a signal. The PC receives a signal from the ultra-high-speed A/D module. The load includes a positive or negative excitation lead loop that is in a 180° symmetrical and instantaneous short-circuit state and a rotor shaft.Type: ApplicationFiled: April 25, 2021Publication date: June 1, 2023Applicant: HANGZHOU HENUOVA TECHNOLOGY CO., LTD.Inventors: Yuewu ZHANG, Jianxi LIU, Yanxing BAO, Weihua ZHA, Qianyi ZHANG, Dongbing LIU, Weixing YANG, Xu HAN, Miaoye LI, Zirui WANG, Junliang LIU, Jie LUO, Weitao SHEN, Yu FU, Han GAO
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Patent number: 11584843Abstract: The invention provides an olefin-olefinic alcohol copolymer and a preparation method thereof, said copolymer comprising a spherical and/or spherical-like polymer. The copolymer provided by the invention exhibits a good morphology and has good prospects in industrial use.Type: GrantFiled: October 24, 2018Date of Patent: February 21, 2023Assignees: CHINA PETROLEUM & CHEMICAL CORPORATION BEIJING RESEARCH INSTITUTE OF CHEMICAL INDUSTRY, CHINA PETROLEUM & CHEMICAL CORPORATIONInventors: Rong Gao, Zifang Guo, Junling Zhou, Dongbing Liu, Jie Fu, Jingjing Lai, Tingjie Huang, Shiyuan Xu, Xinyang Li
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Publication number: 20230002432Abstract: An amino-imine metal complex represented by Formula I, its preparation method and an application thereof are provided. The complex is used as a main catalyst in catalysts for olefin polymerization, and can catalyze the polymerization of ethylene at a relatively high temperature to prepare branched polyethylene having high molecular weight.Type: ApplicationFiled: October 30, 2020Publication date: January 5, 2023Inventors: Rong GAO, Jingjing LAI, Zifang GUO, Qingqiang GOU, Junling ZHOU, Xiaofan ZHANG, Dongbing LIU, Jie LIN, Xinyang LI, Junhui ZHANG, Yuanning GU, Yan LI, Jingyan AN, Hui ZHAO
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Publication number: 20220396646Abstract: A method for preparing an olefin-olefinic alcohol copolymer and an olefin-olefinic alcohol copolymer prepared by the method are provided. The catalyst used in the method for preparing the olefin-olefinic alcohol copolymer has a diimine metal complex as shown in Formula I.Type: ApplicationFiled: October 30, 2020Publication date: December 15, 2022Inventors: Rong GAO, Jingjing LAI, Zifang GUO, Qingqiang GOU, Junling ZHOU, Wenbo SONG, Xinyang LI, Xiaofan ZHANG, Jie LIN, Dongbing LIU, Junhui ZHANG, Hongtao WANG, Shijun ZHANG, Yuanning GU, Jingyan AN, Hui ZHAO, Tingjie HUANG, Dong MA, Ruen WANG, Shiyuan XU, Jie FU
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Publication number: 20220282005Abstract: A diimine metal complex represented by Formula I, a preparation method therefor, and application thereof are provided. The complex is used as a main catalyst in catalysts for olefin polymerization, and can achieve catalytic ethylene polymerization at a high temperature to prepare high molecular weight branched polyethylene.Type: ApplicationFiled: October 30, 2020Publication date: September 8, 2022Inventors: Rong GAO, Jingjing LAI, Zifang GUO, Qingqiang GOU, Junling ZHOU, Dongbing LIU, Xiaofan ZHANG, Jie LIN, Xinyang LI, Junhui ZHANG, Yuanning GU, Yan LI, Jingyan AN, Jie FU, Yanhong WAN
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Publication number: 20210380730Abstract: The invention relates to the technical field of heterogeneous catalytic olefin polymerization, and discloses a polyolefin catalyst, its preparation and its us. A method for preparing the polyolefin catalyst comprises: (i) providing a thermally activated mesoporous material, with the thermal activation treatment being performed at a temperature of 300 to 900° C.Type: ApplicationFiled: October 25, 2019Publication date: December 9, 2021Inventors: Yu KANG, Xinping LYU, Dongbing LIU, Zifang GUO, Hongmei LIU, Shiyuan XU
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Publication number: 20200325262Abstract: The present invention provides a copolymer of an olefin and an unsaturated carboxylic acid or an unsaturated carboxylic acid derivative, said copolymer being a spherical and/or spherical-like polymer. The copolymer provided by the invention exhibits a good morphology and has good prospects in industrial use.Type: ApplicationFiled: October 24, 2018Publication date: October 15, 2020Inventors: Rong GAO, Zifang GUO, Junling ZHOU, Dongbing LIU, Jie FU, Jingjing LAI, Tingjie HUANG, Shiyuan XU, Xinyang LI
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Publication number: 20200325315Abstract: The invention provides an olefin-olefinic alcohol copolymer and a preparation method thereof, said copolymer comprising a spherical and/or spherical-like polymer. The copolymer provided by the invention exhibits a good morphology and has good prospects in industrial use.Type: ApplicationFiled: October 24, 2018Publication date: October 15, 2020Inventors: Rong GAO, Zifang GUO, Junling ZHOU, Dongbing LIU, Jie FU, Jingjing LAI, Tingjie HUANG, Shiyuan XU, Xinyang LI
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Patent number: 10174141Abstract: The present invention provides a preparation method of a catalyst component for olefin polymerization, comprising firstly dissolving an anhydrous magnesium halide into a mixed solvent which comprises an oxygen-containing organic titanium compound, an organic epoxy compound, a hydroxy-containing compound, and an inert solvent, and does not comprise a phosphate compound, so as to form a magnesium halide solution; then mixing the magnesium halide solution with a halogen-containing compound to precipitate a solid, so as to obtain the catalyst component, wherein the halogen-containing compound comprises at least one selected from a group consisting of halogen and titanium-containing compounds, halogenated organic hydrocarbon compounds, acyl halide compounds, halogen and phosphorus-containing compounds, halogen and boron-containing compounds, halogenated organic aluminum compounds, and halogen and silicon-containing compounds.Type: GrantFiled: April 29, 2015Date of Patent: January 8, 2019Assignee: China Petroleum & Chemical Corporation Beijing Research Institute of Chemical Industry, China Petroleum & Chemical CorporationInventors: Shibo Wang, Junling Zhou, Dongbing Liu, Lei Zhang, Xinping Lv, Bingquan Mao, Zhenjie Liu, Xin Zhou, Changli Zhang, Baoquan Xing
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Patent number: 10087264Abstract: A magnesium halide solution is disclosed. The magnesium halide solution comprises a magnesium halide, an oxygen-containing organic titanium compound, a hydroxyl-containing compound, and an organic solvent. The magnesium halide solution further comprises an organic heterocyclic compound. The organic solvent is a hydrocarbon and/or a halogenated hydrocarbon. The organic heterocyclic compound is at least one selected from a group consisting of a sulphur-containing organic heterocyclic compound, a nitrogen-containing organic heterocyclic compound, and an organic epoxy compound. The magnesium halide solution has a good stability, and can be used for preparing a catalyst for olefin polymerization and copolymerization reactions. The raw material of the magnesium halide solution is cheap and easy to be obtained. The preparing method is easy to be performed and is environment-friendly.Type: GrantFiled: April 29, 2015Date of Patent: October 2, 2018Assignees: China Petroleum & Chemical Corporation, Beijing Research Institute of Chemical Industry, China Petroleum & Chemical CorporationInventors: Shibo Wang, Junling Zhou, Dongbing Liu, Lei Zhang, Xinping Lv, Bingquan Mao, Zhenjie Liu, Xin Zhou, Changli Zhang, Baoquan Xing
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Publication number: 20170058060Abstract: A magnesium halide solution is disclosed. The magnesium halide solution comprises a magnesium halide, an oxygen-containing organic titanium compound, a hydroxyl-containing compound, and an organic solvent. The magnesium halide solution further comprises an organic heterocyclic compound. The organic solvent is a hydrocarbon and/or a halogenated hydrocarbon. The organic heterocyclic compound is at least one selected from a group consisting of a sulphur-containing organic heterocyclic compound, a nitrogen-containing organic heterocyclic compound, and an organic epoxy compound. The magnesium halide solution has a good stability, and can be used for preparing a catalyst for olefin polymerization and copolymerization reactions. The raw material of the magnesium halide solution is cheap and easy to be obtained. The preparing method is easy to be performed and is environment-friendly.Type: ApplicationFiled: April 29, 2015Publication date: March 2, 2017Applicants: China Petroleum & Chemical Corporation, Beijing Research Institute of Chemical Industry, China Petroleum & Chemical CorporationInventors: Shibo WANG, Junling ZHOU, Dongbing LIU, Lei ZHANG, Xinping LV, Bingquan MAO, Zhenjie LIU, Xin ZHOU, Changli ZHANG, Baoquan XING
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Publication number: 20170051086Abstract: The present invention provides a preparation method of a catalyst component for olefin polymerization, comprising firstly dissolving an anhydrous magnesium halide into a mixed solvent which comprises an oxygen-containing organic titanium compound, an organic epoxy compound, a hydroxy-containing compound, and an inert solvent, and does not comprise a phosphate compound, so as to form a magnesium halide solution; then mixing the magnesium halide solution with a halogen-containing compound to precipitate a solid, so as to obtain the catalyst component, wherein the halogen-containing compound comprises at least one selected from a group consisting of halogen and titanium-containing compounds, halogenated organic hydrocarbon compounds, acyl halide compounds, halogen and phosphorus-containing compounds, halogen and boron-containing compounds, halogenated organic aluminium compounds, and halogen and silicon-containing compounds.Type: ApplicationFiled: April 29, 2015Publication date: February 23, 2017Applicants: China Petroleum & Chemical Corporation, Beijing Research Institute of Chemical Industry, China Petroleum & Chemical CorporationInventors: Shibo WANG, Junling ZHOU, Dongbing LIU, Lei ZHANG, Xinping LV, Bingquan MAO, Zhenjie LIU, Xin ZHOU, Changli ZHANG, Baoquan Xing
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Patent number: 9068025Abstract: The present invention relates to a catalyst component for olefin polymerization, which comprises the reaction product of at least one organo-magnesium compound, at least one titanium-containing compound, at least one hydroxyl group-containing compound, at least one chlorine-containing organo-aluminum, boron, phosphorus or silicon compound, and at least one polybutadiene block copolymer. The catalyst component of the present invention has well-shaped particles, and a narrow particle size distribution; a polymerization reaction of olefins with the catalyst component produces well-shaped polymer particles with a high bulk density (BD) and an excellent comprehensive catalytic performance. The present invention also relates to a preparation method for said catalyst component and the application thereof, particularly in the homopolymerization and copolymerization of olefins such as ethylene, propylene, butene, hexene and octene.Type: GrantFiled: August 19, 2011Date of Patent: June 30, 2015Assignees: China Petroleum & Chemical Corporation, Beijing Research Institute of Chemical Industry, China Petroleum & Chemical CorporationInventors: Shibo Wang, Dongbing Liu, Junling Zhou, Xinping Lü, Lei Zhang, Bingquan Mao, Baoquan Xing, Xin Zhou, Changli Zhang
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Publication number: 20130150540Abstract: The present invention relates to a catalyst component for olefin polymerization, which comprises the reaction product of at least one organo-magnesium compound, at least one titanium-containing compound, at least one hydroxyl group-containing compound, at least one chlorine-containing organo-aluminum, boron, phosphorus or silicon compound, and at least one polybutadiene block copolymer. The catalyst component of the present invention has well-shaped particles, and a narrow particle size distribution; a polymerization reaction of olefins with the catalyst component produces well-shaped polymer particles with a high bulk density (BD) and an excellent comprehensive catalytic performance. The present invention also relates to a preparation method for said catalyst component and the application thereof, particularly in the homopolymerization and copolymerization of olefins such as ethylene, propylene, butene, hexene and octene.Type: ApplicationFiled: August 19, 2011Publication date: June 13, 2013Inventors: Shibo Wang, Dongbing Liu, Junling Zhou, Xinping Lü, Lei Zhang, Bingquan Mao, Baoquan Xing, Xin Zhou, Changli Zhang
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Patent number: 7172988Abstract: A catalyst component for ethylene polymerization, including an inorganic oxide support, and at least one alkyl metal compound, at least one halide, at least one dihydrocarbyl magnesium compound, at least one difunctional compound that reacts with the dihydrocarbyl magnesium compound and at least one titanium compound, wherein the difunctional compound is a mono-, di- or multi-halogenated alcohol or phenol having from 2 to 20 carbon atoms; or a mono-, di- or multi-halogenated acyl halide having from 2 to 20 carbon atoms. Also, a process for preparing the catalyst component and use thereof.Type: GrantFiled: October 15, 2003Date of Patent: February 6, 2007Assignees: China Petroleum & Chemical Corporation, Beijing Research Institute of Chemical IndustryInventors: Kejing Gao, Dongbing Liu, Wei Chen, Guirong Fan, Xinping Lu, Jingyan An, Ying Guan, Jun Zhang, Qinfang Zhao
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Publication number: 20040127349Abstract: The invention provides a catalyst component for ethylene polymerization, comprising an inorganic oxide support, and at least one alkyl metal compound, at least one halide, at least one dihydrocarbyl magnesium compound, at least one difuntional compound that reacts with the dihydrocarbyl magnesium compound and at least one titanium compound. The invention also relates to a process for preparing the catalyst component and use thereof. The catalyst comprising the catalyst component exhibits good hydrogen response and activity balance, and that the amount of static charges carried by the catalyst solid component powders is remarkably reduced will facilitate the industrial-scale operation of polymerization.Type: ApplicationFiled: October 15, 2003Publication date: July 1, 2004Applicants: CHINA PETROLEUM & CHEMICAL CORPORATION, BEIJING RESEARCH INSTITUTE OF CHEMICAL INDUSTRYInventors: Kejing Gao, Dongbing Liu, Wei Chen, Guirong Fan, Xinping Lu, Jingyan An, Ying Guan, Jun Zhang, Qinfang Zhao