479 patents
Utility
Propylene Polymer-based Composite Film, Preparation Method Therefor, and Application Thereof
18 Jan 24
A propylene polymer-based composite film, a preparation method therefor, and an application thereof are provided.
Meng XU, Shijun ZHANG, Dali GAO, Yiqing BAI, Kai XU, Yueming REN, Jianye LIU, Hui QUAN, Mu DONG, Qi ZHANG, Baige CHOU, Yun LYU, Jingbo SHAO
Filed: 20 Oct 21
Utility
Substituted Scleroglucan, Manufacturing Method Therefor and Use Thereof
18 Jan 24
Xiqiang SI, Zhonghua WANG
Filed: 26 Mar 21
Utility
Catalytic conversion process and system for producing gasoline and propylene
16 Jan 24
A catalytic conversion process for producing gasoline and propylene includes the steps of 1) subjecting a feedstock oil to a first catalytic conversion reaction in a first catalytic conversion reaction device to obtain a first reaction product; 2) separating the first reaction product to obtain a propylene fraction, a gasoline fraction and a fraction comprising C4 olefin; 3) carrying out an oligomerization reaction on the fraction comprising C4 olefin in an oligomerization reactor to obtain an oligomerization product comprising C12 olefin, and optionally separating the oligomerization product to obtain a fraction comprising C12 olefin; 4) recycling the C12 olefin-containing oligomerization product or fraction to the first catalytic conversion reaction device, and/or sending the C12 olefin-containing oligomerization product or fraction to a second catalytic conversion reaction device for a second catalytic conversion reaction to obtain a second reaction product comprising propylene.
Xuhui Bai, Yanfen Zuo, Youhao Xu, Yibin Luo, Xingtian Shu, Xieqing Wang, Xin Wang
Filed: 17 Mar 20
Utility
Ethylene Copolymer and Method for Preparation Thereof and Composition and Crosslinked Polymer and Tire
11 Jan 24
An ethylene copolymer and a method for preparing same, and a composition, crosslinked polymer, and tire containing said ethylene copolymer are provided.
Nian GAO, Jianjun CHEN, Hongbo LI, Lin XU, Ning WU, Jianguo HAO
Filed: 27 Nov 20
Utility
Liquid Butadiene-styrene Polymer, Preparation Method for Same and Application of Same, As Well As Composition, Polymer Coating, Adhesive, and Cross-linking Agent
4 Jan 24
A liquid butadiene-styrene polymer, a preparation method for same and an application of same, as well as a composition, a polymer coating, an adhesive and a cross-linking agent containing the same are provided.
Jiancheng LI, Lin XU, Xue WANG, Mingbo SHAO
Filed: 28 Oct 20
Utility
Downhole Blowout Preventer and Blowout Prevention Operation Method
4 Jan 24
A downhole blowout preventer has a blowout preventer tubing string containing a circulation unit, a packer unit and a pressure-building unit connected in sequence from top to bottom.
Lanrong MA, Lei GU, Huibo YIN, Xiaozhi ZHENG, Guangming CHENG, Yuequan HOU
Filed: 16 Aug 21
Utility
Ethylene-vinyl Alcohol Copolymer Composition, and Preparation Method Therefor
28 Dec 23
Described are an ethylene-vinyl alcohol (EVOH) copolymer composition, and a preparation method therefor.
Yuqin DOU, Qingquan WANG, Lamei HU, Lingzhi HE, Yingbin HUANG, Wen WANG, Siquan WAN
Filed: 14 Oct 21
Utility
Metal-organic Framework Material Separation Membrane, Preparation Method Therefor, and Use Thereof
28 Dec 23
A metal-organic framework material separation membrane and a preparation method for the metal-organic framework material separation membrane are provided.
Changjiang WU, Xin WEI, Hesheng LI, Xinmiao ZHANG, Jie SUN, Chenghong WANG, Yujie WANG, Fanning MENG
Filed: 28 Oct 20
Utility
Thermoplastic Composite Material, Preparation Method Therefor and Use Thereof
28 Dec 23
A thermoplastic composite material has an inner layer material and at least one layer of outer layer material.
Dali GAO, Changjin LI, Shijun ZHANG, Kai XU, Peng KANG, Qi ZHANG, Hua YIN, Mingfu LV, Dehui KONG, Qi XIN, Tao CAI, Mu DONG, Jingbo SHAO, Hongwei SHI, Changhui SUN, Yiqing BAI, Yigang TAN, Guang LI, Xiaoyong GAO, Jinqi HE, Meijie LI, Meng XU, Baige CHOU, Yun LV, Yueming REN
Filed: 30 Oct 21
Utility
Continuous Gas Separation System Combining Hydrate-based Process and Reverse Osmosis Process and Disturbance Device
28 Dec 23
A disturbance device has two jet mixers, which are oppositely disposed in the horizontal direction; a mixing chamber, which is connected between the two jet mixers; and mixing pipes, which are connected below the mixing chamber.
Qian XUE, Zunzhao LI, Xiaolin WANG, Mingrui LIU, Wei ZHAO, Shihan LI, Xiaozhe SUN, Wei WANG
Filed: 19 Oct 21
Utility
Solid Component for Preparing Olefin Polymerization Catalyst, and Preparation Method Therefor and Application Thereof
28 Dec 23
Weili LI, Xianzhi XIA, Junling ZHOU, Yuexiang LIU, Yongtai LING, Tao LIU, Jin ZHAO, Futang GAO, Chunhong REN, Yang TAN, Long CHEN
Filed: 26 Oct 21
Utility
Process for Refining Glycolide and Glycolide Obtained Therefrom
28 Dec 23
A process for refining glycolide includes a step of extracting impurities from a crude glycolide with solvent A, and then a step of recrystallizing with solvent B.
Wentao XIONG, Rui WANG, Fen ZHOU, Jingen XIONG
Filed: 26 Oct 21
Utility
Catalyst Including Molecular Sieve Having Topological Pore Structure, Preparation Method Therefor and Use Thereof
21 Dec 23
A catalyst contains a metal oxide, and a molecular sieve, in a crystal form, having a topological pore structure.
Chang LIU, Yangdong WANG, Zaiku XIE, Su LIU, Haibo ZHOU, Junjie SU, Wenqian JIAO, Lin ZHANG
Filed: 19 Oct 21
Utility
M-xylene Adsorbent and Preparation Method Therefor
21 Dec 23
A m-xylene adsorbent contains 94 to 99.9 wt % of a Y molecular sieve and 0.1 to 6 wt % of a matrix.
Ningning GAO, Huiguo WANG, Yusi LIU, Hongchao WANG, Yanqiang YANG, Xiaofei QIAO, Dehua WANG, Jianfeng MA, Jin ZHONG, Junkui GAO, Pengfei TUO
Filed: 13 Oct 21
Utility
Carrier for Olefin Polymerization Catalyst and Application Thereof, Catalyst for Olefin Polymerization and Application Thereof, and Olefin Polymerization Method
21 Dec 23
Yongtai LING, Junling ZHOU, Xianzhi XIA, Yuexiang LIU, Weili LI, Tao LIU, Chunhong REN, Jin ZHAO, Futang GAO, Long CHEN, Yang TAN
Filed: 3 Sep 21
Utility
Method and System for Processing Gasoline Fractions
21 Dec 23
A method for processing a gasoline fraction includes the steps of: a) reacting the gasoline fraction in an aromatization unit, and separating the resulting reaction product to obtain a C4− component, a C5 component, a C6-C7 component, a C8 component and a C9+ component; b) reacting the resulting C6-C7 component and the C9+ component in a cracking and aromatics conversion unit, and separating the resulting reaction product to obtain a C4− component, a C5 component, a C6-C7 component, a C8 component and a C9+ component; and c) recycling at least a part of at least one of the C6-C7 component and the C9+ component from step b) to the cracking and aromatics conversion unit of step b) for further reaction.
Jingqiu LI, Dejin KONG, Xuguang LI, Zongshuang WANG, Huaying LI, Weiyi TONG
Filed: 22 Oct 21
Utility
Interconnect for downhole instruments
19 Dec 23
An interconnector for connecting downhole instruments includes a male connector assembly and a female connector assembly.
Sheng Zhan, Sam Seldon
Filed: 16 May 22
Utility
Process for producing p-xylene and ethylbenzene from C
19 Dec 23
A process for producing para-xylene and ethylbenzene from C8 aromatics containing ethylbenzene includes the steps of sending C8 aromatics containing ethylbenzene to an ethylbenzene liquid-phase adsorption separation device, wherein a suction liquid containing ethylbenzene and a suction residual liquid are obtained after the adsorption separation, and the desorbents in the suction liquid and the suction residual liquid are removed to obtain ethylbenzene and a suction residual oil; sending the suction residual oil to a para-xylene adsorption separation device, and unadsorbed components are discharged as a raffinate from the adsorbent bed; the adsorbent bed is rinsed with a desorbent to desorb the para-xylene therein and obtain an extract; the desorbents in the extract and the raffinate are respectively removed to obtain para-xylene and a raffinate oil; sending the raffinate oil to a xylene isomerization device to carry out xylene isomerization, and the isomerization product is fractionated.
Yanqiang Yang, Dehua Wang, Huiguo Wang, Jianfeng Ma, Hongchao Wang, Ben Li, Yusi Liu, Xiaofei Qiao, Ningning Gao
Filed: 28 Sep 20
Utility
Silicon-aluminum Molecular Sieve Catalyst, and Preparation and Application Thereof
14 Dec 23
An aluminosilicate molecular sieve catalyst, its preparation and application thereof are provided.
Weimin YANG, Darui WANG, Hongmin SUN, Wei LIU, Mingyao HUAN, Mingwei XUE, Junlin HE
Filed: 25 Oct 21
Utility
Catalyst system for olefin polymerization and use thereof
12 Dec 23
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
Filed: 24 Jul 20