Patents by Inventor Sihan Wang
Sihan Wang 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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Publication number: 20230392307Abstract: A method of making a loop fastener product features knitting, such as by circular knitting, a pile yarn and one or more ground yarns to form a stretchable knit fabric having loops of the pile yarn extending from a knit ground, with the ground yarns including polymers of differing melt temperatures. The knit fabric is then held in a desired state while the fabric is set by first applying sufficient heat to cause the lower melt temperature resin to flow into interstices of the fabric ground, and then allowing the fabric to cool. The cooled fabric ground is less stretchable in two orthogonal directions after setting than before setting, has a greater air permeability after setting than before setting, and has hook-engageable pile loops extending from bound interstices.Type: ApplicationFiled: August 21, 2023Publication date: December 7, 2023Inventors: Paul R. Erickson, Sihan Wang, Dale E. Turcotte, Okan Ala
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Publication number: 20230389808Abstract: A video data-based system for blood pressure prediction. The video data-based system for blood pressure prediction comprises: a first device and a cloud server, where the first device comprises a first master control module, a first camera, a lighting module, a display screen, and a first communication; the cloud server comprises a second master control module, a validity validation module, a parameter validation module, a data preprocessing module, an artificial intelligence blood pressure prediction module, and a second communication module. The use of the video data-based system for blood pressure prediction provided in the embodiments of the present disclosure obviates the need to wear any specific collecting device for the real-time detection and continuous monitoring of the blood pressure, thus reducing the difficulty of implementing the real-time detection and monitoring of a test subject, and enriching the application scenarios of photoplethysmography in the field of guardianship.Type: ApplicationFiled: April 19, 2021Publication date: December 7, 2023Inventors: Jun Cao, Zejian WU, Sihan WANG, Biying Zhang, Hongdai Sun, Zhe Li, Chengzhong Zhang, Ruilai Li, Kaifeng Zang, Ruiguang LU, Yuelei Wang, Liang Ban, Xiaole Zhao, Xin Qi
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Publication number: 20230371831Abstract: a method for predicting blood pressure by fusing calibrated photoplethysmography (PPG) signal data includes obtaining real-time PPG signal data, calibrated PPG signal data, calibrated diastolic blood pressure data, and systolic blood pressure data; using a CNN+ANN model to calculate the relative blood pressure data, and generating an ANN output tensor, according to the calibrated diastolic blood pressure and systolic blood pressure data, and the ANN output tensor, performing blood pressure data calculation and generating a blood pressure tensor; if the predicted type information is a first type, performing a mean value calculation according to the blood pressure tensor, and generating diastolic blood pressure prediction data and systolic blood pressure prediction data; if the predicted type information is a second type, performing data extraction processing on the blood pressure tensor, and generating a diastolic blood pressure prediction data sequence and a systolic blood pressure prediction data sequence.Type: ApplicationFiled: April 19, 2021Publication date: November 23, 2023Inventors: Jun Cao, Biying Zhang, Sihan Wang, Zejian Wu
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Patent number: 11767619Abstract: A method of making a loop fastener product features knitting, such as by circular knitting, a pile yarn and one or more ground yarns to form a stretchable knit fabric having loops of the pile yarn extending from a knit ground, with the ground yarns including polymers of differing melt temperatures. The knit fabric is then held in a desired state while the fabric is set by first applying sufficient heat to cause the lower melt temperature resin to flow into interstices of the fabric ground, and then allowing the fabric to cool. The cooled fabric ground is less stretchable in two orthogonal directions after setting than before setting, has a greater air permeability after setting than before setting, and has hook-engageable pile loops extending from bound interstices.Type: GrantFiled: September 28, 2017Date of Patent: September 26, 2023Assignee: Velcro IP Holdings LLCInventors: Paul R. Erickson, Sihan Wang, Dale E. Turcotte, Okan Ala
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Patent number: 11352572Abstract: The present invention provides a low viscosity poly-?-olefin lubricating oil and a synthesis method thereof. The method comprises: (1) the ?-olefin raw material is subjected to dehydration treatment so that the water content in the raw material is ?10 ppm; (2) a reaction of the dehydration treated ?-olefin raw material is carried out in the presence of a complex catalyst and gaseous BF3 to obtain a reaction product, wherein the pressure of the gaseous BF3 is 0.01 to 1 MPa; (3) the reaction product obtained in step (2) is sequentially subjected to flash distillation, gas stripping, centrifugation, and washing treatment to obtain an intermediate product; (4) the intermediate product obtained in step (3) is subjected to distillation under reduced pressure to separate the unreacted ?-olefin raw material and ?-olefin dimers, and the remaining heavy fractions are subjected to hydrogenation saturation treatment followed by fractionation and cutting-off.Type: GrantFiled: October 24, 2019Date of Patent: June 7, 2022Assignee: PETROCHINA COMPANY LIMITEDInventors: Hongling Chu, Sihan Wang, Kecun Ma, Xianming Xu, Libo Wang, Guizhi Wang, Yan Jiang, Legang Feng, Yulong Wang, Enhao Sun, Hongliang Huo, Tong Liu, Yali Wang, Xiuhui Wang, Han Gao, Yuanyuan Cao, Fengrong Wang, Weihong Guan, Ruhai Lin, Xuemei Han, Yunguang Han, Fuling Huang, Buwei Yu
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Patent number: 11298693Abstract: The present disclosure provides a method and a catalyst for selective oligomerization of ethylene. The raw material for the catalyst consists of a dehydropyridine annulene-type ligand, a transition metal compound, and an organometallic compound in a molar ratio of 1:0.5-100:0.1-5000. The present disclosure also provides a method for selective oligomerization of ethylene accomplished by using the above-mentioned catalyst. The catalyst for selective oligomerization of ethylene has high catalytic activity, high selectivity for the target products 1-hexene and 1-octene, and low selectivity for 1-butene and 1-C10+.Type: GrantFiled: June 19, 2019Date of Patent: April 12, 2022Assignee: PETROCHINA COMPANY LIMITEDInventors: Buwei Yu, Tao Jiang, Sihan Wang, Hongling Chu, Yan Jiang, Hongliang Huo, Xianming Xu, Libo Wang, Huaiqi Shao, Yali Wang, Yuanyuan Cao, Tong Liu, Kecun Ma, Fuling Huang, Xiuhui Wang, Enhao Sun, Yulong Wang
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Publication number: 20200190409Abstract: The present invention provides a low viscosity poly-?-olefin lubricating oil and a synthesis method thereof. The method comprises: (1) the ?-olefin raw material is subjected to dehydration treatment so that the water content in the raw material is ?10 ppm; (2) a reaction of the dehydration treated ?-olefin raw material is carried out in the presence of a complex catalyst and gaseous BF3 to obtain a reaction product, wherein the pressure of the gaseous BF3 is 0.01 to 1 MPa; (3) the reaction product obtained in step (2) is sequentially subjected to flash distillation, gas stripping, centrifugation, and washing treatment to obtain an intermediate product; (4) the intermediate product obtained in step (3) is subjected to distillation under reduced pressure to separate the unreacted ?-olefin raw material and ?-olefin dimers, and the remaining heavy fractions are subjected to hydrogenation saturation treatment followed by fractionation and cutting-off.Type: ApplicationFiled: October 24, 2019Publication date: June 18, 2020Applicant: PETROCHINA COMPANY LIMITEDInventors: Hongling CHU, Sihan WANG, Kecun MA, Xianming XU, Libo WANG, Guizhi WANG, Yan JIANG, Legang FENG, Yulong WANG, Enhao SUN, Hongliang HUO, Tong LIU, Yali WANG, Xiuhui WANG, Han GAO, Yuanyuan CAO, Fengrong WANG, Weihong GUAN, Ruhai LIN, Xuemei HAN, Yunguang HAN, Fuling HUANG, Buwei YU
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Publication number: 20190388882Abstract: The present disclosure provides a method and a catalyst for selective oligomerization of ethylene. The raw material for the catalyst consists of a dehydropyridine annulene-type ligand, a transition metal compound, and an organometallic compound in a molar ratio of 1:0.5-100:0.1-5000. The present disclosure also provides a method for selective oligomerization of ethylene accomplished by using the above-mentioned catalyst. The catalyst for selective oligomerization of ethylene has high catalytic activity, high selectivity for the target products 1-hexene and 1-octene, and low selectivity for 1-butene and 1-C10+.Type: ApplicationFiled: June 19, 2019Publication date: December 26, 2019Applicant: PETROCHINA COMPANY LIMITEDInventors: Buwei YU, Tao JIANG, Sihan WANG, Hongling CHU, Yan JIANG, Hongliang HUO, Xianming XU, Libo WANG, Huaiqi SHAO, Yali WANG, Yuanyuan CAO, Tong LIU, Kecun MA, Fuling HUANG, Xiuhui WANG, Enhao SUN, Yulong WANG
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Publication number: 20190093264Abstract: A method of making a loop fastener product features knitting, such as by circular knitting, a pile yarn and one or more ground yarns to form a stretchable knit fabric having loops of the pile yarn extending from a knit ground, with the ground yarns including polymers of differing melt temperatures. The knit fabric is then held in a desired state while the fabric is set by first applying sufficient heat to cause the lower melt temperature resin to flow into interstices of the fabric ground, and then allowing the fabric to cool. The cooled fabric ground is less stretchable in two orthogonal directions after setting than before setting, has a greater air permeability after setting than before setting, and has hook-engageable pile loops extending from bound interstices.Type: ApplicationFiled: September 28, 2017Publication date: March 28, 2019Inventors: Paul R. Erickson, Sihan Wang, Dale E. Turcotte, Okan Ala
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Patent number: 9498451Abstract: Disclosed in the present invention is new use of saturated amine compounds for use in preparing medicines to resist radiation damage and promoting regeneration and repair of radiation-damaged tissues.Type: GrantFiled: January 23, 2014Date of Patent: November 22, 2016Assignee: BEIJING INSTITUTE OF TRANSFUSION MEDICINE, ACADEMY OF MILITARY SCIENCESInventors: Xuetao Pei, Yanhua Li, Sihan Wang, Jing Zhang, Hailei Yao, Wei Shi, Wen Yue
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Patent number: 9421533Abstract: A catalyst for synthesizing 1-hexene from ethylene trimerization and its application are provided. Said catalyst consists of (a) the compound containing P and N, (b) electron donor, (c) Cr compound, (d) carrier and (e) accelerator. The molar ratio of (a), (b), (c), (d) and (e) is 0.5-100:0.5-100:1:0.5-10:50-5000. The catalyst is prepared by mixing the components of (a)-(e) in an ethylene trimerization apparatus in situ and ethylene is introduced into the apparatus continuously. The prepared catalyst can be used to synthesize 1-hexene from ethylene trimerization in the inert solvents. The trimerization is performed at 30-150° C. and 0.5-10.0 MPa for 0.1-4 hours. The catalyst has high catalytic activity and high 1-hexene selectivity. During the process of ethylene trimerization, by-product polyethylene does not stick to the apparatus.Type: GrantFiled: July 22, 2010Date of Patent: August 23, 2016Assignee: PETROCHINA COMPANY LIMITEDInventors: Gang Wang, Sihan Wang, Zhonghua Yang, Jiabo Qu, Baojun Zhang, Qian Chen, Deshun Zhang, Libo Wang, Yali Wang, Buwei Yu, Xiuhui Wang, Fuling Huang, Xuemei Han, Dongmei Niu, Shukun Sun, Wenchao Zhang, Hua Li, Gongchen Yan
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Patent number: 9248430Abstract: A method for synthesis of 1-decene oligomer is provided, wherein 1-decene is polymerized at 80-120° C., 0.8-1.4 MPa in the presence of aluminum trichloride catalyst supported on gamma-alumina and n-hexane solvent where the volume ratio of 1-decene to n-hexane is 3:8-4:1. The catalyst is treated as follows: impregnating gamma-alumina carrier in 0.5-2.0 M of hydrochloric acid, sulfuric acid, nitric acid or mixtures thereof, then vacuum drying at 80-100° C. and calcining at 400-800° C.; dissolving 5-10 g of anhydrous aluminum trichloride in 100 ml of tetrachloromethane, trichloromethane or dichloromethane solvent; adding the obtained solution into 10-20 g of activated alumina carrier and obtaining the catalyst after vacuum drying. The conversion of 1-decene is 50 wt % or more. The oligomer has a kinematic viscosity at 40° C. of 6.0-25 mm2/s and a viscosity index of 160-262.Type: GrantFiled: July 22, 2010Date of Patent: February 2, 2016Assignees: PETROCHINA COMPANY LIMITED, EAST CHINA UNIVERSITY OF SCIENCEInventors: Fuling Huang, Puke Mi, Sihan Wang, Jinhua Qian, Qian Chen, Sheng Xu, Jianzhong Li, Gang Wang, Baojun Zhang, Min Liu, Guizhi Wang, Xuemei Han, Jiabo Qu, Panfeng Lu, Shukun Sun, Xiuhui Wang, Yuxin Gao, Deshun Zhang, Ling Jiang, Buwei Yu, Libo Wang, Yali Wang, Lingting Fan, Peng Wei, Wei Liu, Guiyue Guo
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Publication number: 20150359758Abstract: Disclosed in the present invention is new use of saturated amine compounds for use in preparing medicines to resist radiation damage and promoting regeneration and repair of radiation-damaged tissues.Type: ApplicationFiled: January 23, 2014Publication date: December 17, 2015Inventors: Xuetao PEI, Yanhua LI, Sihan WANG, Jing ZHANG, Hailei YAO, Wei SHI, Wen YUE
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Publication number: 20130090508Abstract: Disclosed is a method for preparing 1-octene in the presence of a catalyst system for ethylene oligomerization, which includes: premixing a part of ethylene gas as raw material with a solvent, mixing with the components a+b, c and d of the catalyst system, and then sending in a reactor; directly sending the rest of ethylene gas in the reactor; discharging the resultant liquid from the upper part of the reactor into an overflow channel; adding a catalysis stopping agent to the overflow channel; and then separating the resultant liquid. The advantages of the method are high selectivity of 1-octene and high catalytic activity.Type: ApplicationFiled: June 3, 2011Publication date: April 11, 2013Applicant: PETROCHINA COMPANY LIMITEDInventors: Gang Wang, Baojun Zhang, Jianzhong Li, Sihan Wang, Jiabo Qu, Defu He, Guizhi Wang, Qian Chen, Buwei Yu, Deshun Zhang, Libo Wang, Yali Wang, Liwei Liang, Yuxin Gao, Jie Li, Wenchao Zhang, Hua Li, Xiaoyu Gao, Shouhui Zha, Fuling Huang, Jing Wei, Xiuhui Wang, Xiangmin Yu, Jingying Zhao, Xuemei Han, Chunfeng Song, Junfeng Wei, Rui Meng
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Publication number: 20120310025Abstract: A catalyst for synthesizing 1-hexene from ethylene trimerization and its application are provided. Said catalyst consists of (a) the compound containing P and N, (b) electron donor, (c) Cr compound, (d) carrier and (e) accelerator. The molar ratio of (a), (b), (c), (d) and (e) is 0.5-100:0.5-100:1:0.5-10:50-5000. The catalyst is prepared by mixing the components of (a)-(e) in an ethylene trimerization apparatus in situ and ethylene is introduced into the apparatus continuously. The prepared catalyst can be used to synthesize 1-hexene from ethylene trimerization in the inert solvents. The trimerization is performed at 30-150° C. and 0.5-10.0 MPa for 0.1-4 hours. The catalyst has high catalytic activity and high 1-hexene selectivity. During the process of ethylene trimerization, by-product polyethylene does not stick to the apparatus.Type: ApplicationFiled: July 22, 2010Publication date: December 6, 2012Applicant: PETROCHINA COMPANY LIMITEDInventors: Gang Wang, Sihan Wang, Zhonghua Yang, Jiabo Qu, Baojun Zhang, Qian Chen, Deshun Zhang, Libo Wang, Yali Wang, Buwei Yu, Xiuhui Wang, Fuling Huang, Xuemei Han, Dongmei Niu, Shukun Sun, Wenchao Zhang, Hua Li, Gongchen Yan
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Publication number: 20120232321Abstract: A method for synthesis of 1-decene oligomer is provided, wherein 1-decene is polymerized at 80-120° C., 0.8-1.4 MPa in the presence of aluminum trichloride catalyst supported on gamma-alumina and n-hexane solvent where the volume ratio of 1-decene to n-hexane is 3:8-4:1. The catalyst is treated as follows: impregnating gamma-alumina carrier in 0.5-2.0 mol of hydrochloric acid, sulfuric acid, nitric acid or mixtures thereof, then vacuum drying at 80-100° C. and calcining at 400-800° C.; dissolving 5-10 g of anhydrous aluminum trichloride in 100 ml of tetrachloromethane, trichloromethane or dichloromethane solvent; adding the obtained solution into 10-20 g of activated alumina carrier and obtaining the catalyst after vacuum drying. The conversion rate of 1-decene is 50 wt % or more. The oligomer has a kinematic viscosity at 40° C. of 6.0-25 mm2/s and a viscosity index of 160-262.Type: ApplicationFiled: July 22, 2010Publication date: September 13, 2012Applicant: PETROCHINA COMPANY LIMITEDInventors: Fuling Huang, Puke Mi, Sihan Wang, Jinhua Qian, Qian Chen, Sheng Xu, Jianzhong Li, Gang Wang, Baojun Zhang, Min Liu, Guizhi Wang, Xuemei Han, Jiabo Qu, Panfeng Lu, Shukun Sun, Xiuhui Wang, Yuxin Gao, Deshun Zhang, Ling Jiang, Buwei Yu, Libo Wang, Yali Wang, Lingting Fan, Peng Wei, Wei Liu, Guiyue Guo
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Patent number: 7786336Abstract: The present invention relates to a catalyst composition for ethylene oligomerization and the use thereof. Such catalyst composition includes chromium compound, ligand containing P and N, activator and accelerator; wherein the chromium compound is selected from the group consisting of acetyl acetone chromium, THF-chromium chloride and Cr(2-ethylhecanoate)3; general formula of the ligand containing P and N is shown as: in which R1, R2, R3 and R4 are phenyl, benzyl, or naphthyl. R5 is isopropyl, butyl, cyclopropyl, cyclopentyl, cyclohexyl or fluorenyl; the activatior is methyl aluminoxane, ethyl aluminoxane, propyl aluminoxane and/or butyl aluminoxane; the accelerator is selected from the group consisting of 1,1,2,2,-tetrachloroethane, 1,1,2,2-tetrabromoethane, 1,1,2,2-tetrafluoroethane, and compounds having a formula of X1R6X2, in which X1 and X2 are F, Cl, Br, I or alkoxyl, R6 is alkylene or arylene group; the molar ratio of chromium compound, ligand containing P and N, activator and accelerator is 1:0.Type: GrantFiled: March 9, 2007Date of Patent: August 31, 2010Assignee: Petrochina Company LimitedInventors: Baojun Zhang, Tao Jiang, Jianzhong Li, Lihua Xing, Yingnan Ning, Shukun Sun, Dongting Kuang, Yongcheng Sun, Yunguang Han, Qian Chen, Hongxia Chen, Deshun Zhang, Yulong Li, Yongjun Zhang, Huimin Yuan, Sihan Wang, Guizhi Wang, Jingyuan Zhang
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Publication number: 20070232481Abstract: The present invention relates to a catalyst composition for ethylene oligomerization and the use thereof. Such catalyst composition includes chromium compound, ligand containing P and N, activator and accelerator; wherein the chromium compound is selected from the group consisting of acetyl acetone chromium, THF-chromium chloride and/or Cr(2-ethylhecanoate)3; general formula of the ligand containing P and N is shown as: in which R1, R2, R3 and R4 are phenyl, benzyl, or naphthyl. R5 is isopropyl, butyl, cyclopropyl, cyclopentyl, cyclohexyl or fluorenyl; the activatior is methyl aluminoxane, ethyl aluminoxane, propyl aluminoxane and/or butyl aluminoxane; general formula of the accelerator is X1R6X2, in which X1 and X2 are F, Cl, Br, I or alkoxyl, R6 is alkyl or aryl; the molar ratio of a, b, c and d is 1:0.5˜10:50˜3000:0.5˜10.Type: ApplicationFiled: March 9, 2007Publication date: October 4, 2007Inventors: Baojun Zhang, Tao Jiang, Jianzhong Li, Lihua Xing, Yingnan Ning, Shukun Sun, Dongting Kuang, Yongcheng Sun, Yunguang Han, Qian Chen, Hongxia Chen, Deshun Zhang, Yulong Li, Yongjun Zhang, Huimin Yuan, Sihan Wang, Guizhi Wang, Jingyuan Zhang