Patents by Inventor Junjie Tao
Junjie Tao 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: 11920017Abstract: A method of a polyurethane foam includes the following steps of: (1) simultaneously pumping a mixed solution prepared from hydrogen peroxide, an organic acid, a catalyst and a stabilizer and a vegetable oil into a first microstructured reactor of a micro-channel modular reaction device for reacting to obtain a reaction solution containing epoxidized vegetable oil; (2) simultaneously pumping the reaction solution containing the epoxidized vegetable oil obtained from the step (1) and a compound of formula III into a second microstructured reactor of the micro-channel modular reaction device for reaction to obtain a vegetable oil polyol; and (3) reacting the vegetable oil polyol prepared from the step (2) with a foam stabilizer, a cyclohexylamine, an isocyanate and a foaming agent cyclopentane for foaming so as to prepare a rigid polyurethane foam.Type: GrantFiled: April 12, 2021Date of Patent: March 5, 2024Assignee: NANJING TECH UNIVERSITYInventors: Kai Guo, Zheng Fang, Chengkou Liu, Ning Zhu, Jingjing Meng, Junjie Tao, Xin Hu, Xin Li, Chuanhong Qiu, Pingkai Ouyang
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Patent number: 11912814Abstract: A preparation method of a flexible polyurethane foam includes the following steps of: (1) subjecting an epoxidized vegetable oil, a benzoylformic acid, a basic catalyst, and an inert solvent to a ring-opening reaction in a first microchannel reactor of a microchannel reaction device to obtain a vegetable oil polyol; (2) subjecting the vegetable oil polyol obtained in the step (1), a propylene oxide and an inert solvent to an addition polymerization reaction in a second microchannel reactor of the microchannel reaction device to obtain a vegetable oil polyol for flexible polyurethane foam; and (3) using the vegetable oil polyol for flexible polyurethane foam obtained in the step (2) as the unique polyol, and subjecting the same and an isocyanate polyol to a foaming reaction to obtain the flexible polyurethane foam.Type: GrantFiled: April 12, 2021Date of Patent: February 27, 2024Assignee: NANJING TECH UNIVERSITYInventors: Kai Guo, Zheng Fang, Junjie Tao, Wei He, Chengkou Liu, Jindian Duan, Xin Li, Ning Zhu, Jiangkai Qiu, Shiyu Guo, Pingkai Ouyang
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Patent number: 11535708Abstract: A method for preparing a polyol comprises the following steps of: (1) dissolving 2,3 -epoxybutane and an acid catalyst in an inert solvent to obtain a solution A; dissolving triethylene glycol in an inert solvent to obtain a solution B; and dissolving epoxy vegetable oil in an inert solvent to obtain a solution C; (2) respectively and simultaneously pumping the solutions A and B into a first micromixer for mixing; (3) pumping the solution C and an effluent of the first microreactor into a second micromixer for mixing while carrying out step (2); and (4) dissolving the vegetable oil polyol in an inert solvent to obtain a solution D; dissolving epoxypropane and an alkaline catalyst in an inert solvent to obtain a solution E; and pumping the solution D and the solution E into a tank reactor for reaction, thereby obtaining the polyol.Type: GrantFiled: August 21, 2020Date of Patent: December 27, 2022Assignee: NANJING TECH UNIVERSITYInventors: Kai Guo, Zheng Fang, Man Yang, Junjie Tao, Ning Zhu, Wei He, Kequan Chen, Pingkai Ouyang
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Publication number: 20210230350Abstract: A preparation method of a flexible polyurethane foam includes the following steps of: (1) subjecting an epoxidized vegetable oil, a benzoylformic acid, a basic catalyst, and an inert solvent to a ring-opening reaction in a first microchannel reactor of a microchannel reaction device to obtain a vegetable oil polyol; (2) subjecting the vegetable oil polyol obtained in the step (1), a propylene oxide and an inert solvent to an addition polymerization reaction in a second microchannel reactor of the microchannel reaction device to obtain a vegetable oil polyol for flexible polyurethane foam; and (3) using the vegetable oil polyol for flexible polyurethane foam obtained in the step (2) as the unique polyol, and subjecting the same and an isocyanate polyol to a foaming reaction to obtain the flexible polyurethane foam.Type: ApplicationFiled: April 12, 2021Publication date: July 29, 2021Inventors: Kai GUO, Zheng FANG, Junjie TAO, Wei He, Chengkou LIU, Jindian DUAN, Xin LI, Ning ZHU, Jiangkai QIU, Shiyu GUO, Pingkai OUYANG
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Publication number: 20210230390Abstract: A method of a polyurethane foam includes the following steps of: (1) simultaneously pumping a mixed solution prepared from hydrogen peroxide, an organic acid, a catalyst and a stabilizer and a vegetable oil into a first microstructured reactor of a micro-channel modular reaction device for reacting to obtain a reaction solution containing epoxidized vegetable oil; (2) simultaneously pumping the reaction solution containing the epoxidized vegetable oil obtained from the step (1) and a compound of formula III into a second microstructured reactor of the micro-channel modular reaction device for reaction to obtain a vegetable oil polyol; and (3) reacting the vegetable oil polyol prepared from the step (2) with a foam stabilizer, a cyclohexylamine, an isocyanate and a foaming agent cyclopentane for foaming so as to prepare a rigid polyurethane foam.Type: ApplicationFiled: April 12, 2021Publication date: July 29, 2021Inventors: Kai GUO, Zheng FANG, Chengkou LIU, Ning ZHU, Jingjing MENG, Junjie TAO, Xin HU, Xin LI, Chuanhong QIU, Pingkai OUYANG
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Publication number: 20200377656Abstract: The method of the polyurethane polyol comprises (1) dissolving 2,3-epoxybutane and an acid catalyst in an inert solvent to obtain a solution A; dissolving triethylene glycol in an inert solvent to obtain a solution B; and dissolving epoxy vegetable oil in an inert solvent to obtain a solution C; (2) respectively and simultaneously pumping the solutions A and B into a first micromixer for mixing; (3) pumping the solution C and an effluent of the first microreactor into a second micromixer for mixing while carrying out step (2)?; and (4) dissolving the vegetable oil polyol in an inert solvent to obtain a solution D; dissolving epoxypropane and an alkaline catalyst in an inert solvent to obtain a solution E; and pumping the solution D and the solution E into a tank reactor for reaction, thereby obtaining the polyurethane polyol.Type: ApplicationFiled: August 21, 2020Publication date: December 3, 2020Inventors: Kai GUO, Zheng FANG, Man YANG, Junjie TAO, Ning ZHU, Wei HE, Kequan CHEN, Pingkai OUYANG
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Publication number: 20190119496Abstract: A method comprises enabling epoxy vegetable oil to react with a compound of a formula III in a second microstructured reactor to obtain the vegetable oil polyol. Compared with the existing technology, the present invention adopts a novel, environment-friendly ring-opening agent, the obtained polyol is novel in structure, high in hydroxyl value, even in distribution and low in viscosity, and can completely replace traditional petrochemical polyol to be applied to the preparation of polyurethane foam materials.Type: ApplicationFiled: December 14, 2018Publication date: April 25, 2019Inventors: Kai GUO, Zheng FANG, Chengkou LIU, Ning ZHU, Jingjing MENG, Junjie TAO, Xin HU, Xin LI, Chuanhong QIU, Pingkai OUYANG
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Publication number: 20190119493Abstract: A vegetable oil polyol for flexible polyurethane foam, a preparation method and application thereof. The method includes the following steps: (1) subjecting an epoxidized vegetable oil, a benzoylformic acid, a basic catalyst, and an inert solvent to a ring-opening reaction in a first microchannel reactor of a microchannel reaction device to obtain a vegetable oil polyol; and (2) subjecting the vegetable oil polyol obtained in the step (1), a propylene oxide and an inert solvent to an addition polymerization reaction in a second microchannel reactor of the microchannel reaction device to obtain the vegetable oil polyol for flexible polyurethane foam.Type: ApplicationFiled: December 14, 2018Publication date: April 25, 2019Inventors: Kai GUO, Zheng FANG, Junjie TAO, Wei He, Chengkou LIU, Jindian DUAN, Xin LI, Ning ZHU, Jiangkai QIU, Shiyu GUO, Pingkai OUYANG
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Patent number: 10259771Abstract: A preparation method of vegetable oil polyol, which is obtains by carrying out allylic oxidation treatment of vegetable oil, increasing the content of hydroxyl group in the product and then one step reaction between epoxidation and ring-opening. At the same time, the present invention also discloses novel vegetable oil polyol made by the preparation method and the application of the vegetable oil polyol in preparation of polyurethane foam material. Compared with the prior art, the method has the advantages of simple operation, low energy consumption and low side reaction occurrence rate.Type: GrantFiled: January 28, 2016Date of Patent: April 16, 2019Assignee: NANJING TECH UNIVERSITYInventors: Kai Guo, Zheng Fang, Dong Ji, Junjie Tao, Xin Li, Li Wan, Ning Zhu, Kai Zhang, Pingkai Ouyang
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Publication number: 20180222841Abstract: A preparation method of vegetable oil polyol, which is obtains by carrying out allylic oxidation treatment of vegetable oil, increasing the content of hydroxyl group in the product and then one step reaction between epoxidation and ring-opening. At the same time, the present invention also discloses novel vegetable oil polyol made by the preparation method and the application of the vegetable oil polyol in preparation of polyurethane foam material. Compared with the prior art, the method has the advantages of simple operation, low energy consumption and low side reaction occurrence rate.Type: ApplicationFiled: January 28, 2016Publication date: August 9, 2018Inventors: Kai GUO, Zheng FANG, Dong JI, Junjie TAO, Xin LI, Li WAN, Ning ZHU, Kai ZHANG, Pingkai OUYANG
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Patent number: 9646357Abstract: The present disclosure provides example methods and apparatuses of conducting graphic rendering. JavaScript codes of a graphic application are obtained. The JavaScript codes include an API corresponding to a rendering function based on OPENGL. The API has a format complying with a standard of HTML5 Canvas. The JavaScript codes are executed at a parsing engine. When the API of the JavaScript codes is executed, the parsing engine parses the API to obtain a corresponding rendering function based on OPENGL. The rendering function is called to conduct graphic rendering to a rendering target. The present techniques improve a speed of graphic rendering at a mobile device.Type: GrantFiled: October 8, 2013Date of Patent: May 9, 2017Assignee: Alibaba Group Holding LimitedInventors: Hujia Liu, Junjie Tao, Wenxiang Zhu, Mingjian Wang
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Publication number: 20140098118Abstract: The present disclosure provides example methods and apparatuses of conducting graphic rendering. JavaScript codes of a graphic application are obtained. The JavaScript codes include an API corresponding to a rendering function based on OPENGL. The API has a format complying with a standard of HTML 5 Canvas. The JavaScript codes are executed at a parsing engine. When the API of the JavaScript codes is executed, the parsing engine parses the API to obtain a corresponding rendering function based on OPENGL. The rendering function is called to conduct graphic rendering to a rendering target. The present techniques improve a speed of graphic rendering at a mobile device.Type: ApplicationFiled: October 8, 2013Publication date: April 10, 2014Applicant: Alibaba Group Holding LimitedInventors: Hujia Liu, Junjie Tao, Wenxiang Zhu, Mingjian Wang