Patents by Inventor Congying ZHANG
Congying ZHANG 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: 11248085Abstract: The present invention provides an epoxy resin material, a preparation method therefor and an application thereof. The present method for preparing an epoxy resin material comprises: heating a mixture of an epoxy resin main agent and a curing agent that are placed at room temperature to 40-85° C. for reaction and curing. The curing agent contains an adduct of an olefinic nitrile compound and an amine compound. The present method for preparing an epoxy resin material has the characteristics of low mixing viscosity, long operation time, and low amount of heat released during preparation.Type: GrantFiled: September 28, 2017Date of Patent: February 15, 2022Inventors: Meng Zhou, Zhaoxing Liu, Xiucai Du, Xiaoli Sun, Changkun Chu, Congying Zhang, Xin Li, Qingmei Jiang
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Patent number: 11045794Abstract: A supported catalyst used for synthesizing a polyether amine, and a manufacturing method of the catalyst. The catalyst comprises: a porous oxide as a support; Ni, Cu, Pd, and Rh as active components; and one or more of any of Zr, Cr, Mo, Fe, Zn, Sn, Bi, Ce, La, Hf, Sr, Sb, Mg, Be, Re, Ta, Ti, Sc, Ge and related metals as an auxiliary agent. The catalyst can be used in an amination reaction for a large molecular weight polyether polyol, and is particularly active and selective for an amination reaction of a low molecular weight polyether polyol. The catalyst has a simple and economic manufacturing technique and good potential for future applications.Type: GrantFiled: August 24, 2016Date of Patent: June 29, 2021Inventors: Shujie Ren, Congying Zhang, Xin Li, Zhenguo Liu, Xiaolong Wang, Lei Tang, Zhipeng Liu, Zhanyu Gao, Jian Wu, Cong Wang, Yuan Li, Qingmei Jiang, Jinhong Song, Weiqi Hua, Hao Ding
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Publication number: 20210047459Abstract: The present invention provides an epoxy resin material, a preparation method therefor and an application thereof. The present method for preparing an epoxy resin material comprises: heating a mixture of an epoxy resin main agent and a curing agent that are placed at room temperature to 40-85° C. for reaction and curing. The curing agent contains an adduct of an olefinic nitrile compound and an amine compound. The present method for preparing an epoxy resin material has the characteristics of low mixing viscosity, long operation time, and low amount of heat released during preparation.Type: ApplicationFiled: September 28, 2017Publication date: February 18, 2021Applicant: Wanhua Chemical Group Co., Ltd.Inventors: Meng Zhou, Zhaoxing Liu, Xiucai Du, Xiaoli Sun, Changkun Chu, Congying Zhang, Xin Li, Qingmei Jiang
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Patent number: 10814314Abstract: The present invention relates to a catalyst for aminating a polyether polyol and preparation method thereof and a method of preparing a polyetheramine using the catalyst. The catalyst has active components and a carrier. The active components are Ni, Cu, and Pd. The method of preparing the catalyst comprises the following steps: using a metal solution or a metal melt impregnated carrier, obtaining a catalyst precursor; and drying and calcinating the obtained catalyst precursor, so as to obtain a catalyst. By introducing the active component Pd in the catalyst, the present invention clearly improves selectivity of an amination catalyst with respect to a preaminated product, and increases raw material conversion rate.Type: GrantFiled: November 13, 2015Date of Patent: October 27, 2020Assignee: Wanhua Chemical Group Co., Ltd.Inventors: Congying Zhang, Shujie Ren, Xin Li, Zhenguo Liu, Xiaolong Wang, Ningning Wang, Hao Chen, Yuan Li, Xueli Yu, Jinhong Song
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Patent number: 10526370Abstract: A pentapeptide associated with integrin receptor ?v?3, which has a sequence of arginine-tryptophan-arginine-asparagine-methionine. The pentapeptide targets tumor cells highly expressing ?v?3, but not tumor cells lowly expressing ?v?3 and normal cells. Accordingly, the pentapeptide is useful in the diagnosis and treatment of cancers.Type: GrantFiled: October 26, 2015Date of Patent: January 7, 2020Assignee: CHINA PHARMACEUTICAL UNIVERSITYInventors: Yueqing Gu, Congying Zhang, Menglu Zhao, Qian Wang, Caiping Tian, Yuxi Liu
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Publication number: 20190201878Abstract: A supported catalyst used for synthesizing a polyether amine, and a manufacturing method of the catalyst. The catalyst comprises: a porous oxide as a support; Ni, Cu, Pd, and Rh as active components; and one or more of any of Zr, Cr, Mo, Fe, Zn, Sn, Bi, Ce, La, Hf, Sr, Sb, Mg, Be, Re, Ta, Ti, Sc, Ge and related metals as an auxiliary agent. The catalyst can be used in an amination reaction for a large molecular weight polyether polyol, and is particularly active and selective for an amination reaction of a low molecular weight polyether polyol. The catalyst has a simple and economic manufacturing technique and good potential for future applications.Type: ApplicationFiled: August 24, 2016Publication date: July 4, 2019Applicant: Wanhua Chemical Group Co., Ltd.Inventors: Shujie Ren, Congying Zhang, Xin Li, Zhenguo Liu, Xiaolong Wang, Lei Tang, Zhipeng Liu, Zhanyu Gao, Jian Wu, Cong Wang, Yuan Li, Qingmei Jiang, Jinhong Song, Weiqi Hua, Hao Ding
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Publication number: 20180318806Abstract: The present invention relates to a catalyst for aminating a polyether polyol and preparation method thereof and a method of preparing a polyetheramine using the catalyst. The catalyst has active components and a carrier. The active components are Ni, Cu, and Pd. The method of preparing the catalyst comprises the following steps: using a metal solution or a metal melt impregnated carrier, obtaining a catalyst precursor; and drying and calcinating the obtained catalyst precursor, so as to obtain a catalyst. By introducing the active component Pd in the catalyst, the present invention clearly improves selectivity of an amination catalyst with respect to a preaminated product, and increases raw material conversion rate.Type: ApplicationFiled: November 13, 2015Publication date: November 8, 2018Applicant: Wanhua Chemical Group Co., Ltd.Inventors: Congying Zhang, Shujie Ren, Xin Li, Zhenguo Liu, Xiaolong Wang, Ningning Wang, Hao Chen, Yuan Li, Xueli Yu, Jinhong Song
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Publication number: 20180141974Abstract: A pentapeptide associated with integrin receptor ?v?3, which has a sequence of arginine-tryptophan-arginine-asparagine-methionine. The pentapeptide targets tumor cells highly expressing ?v?3, but not tumor cells lowly expressing ?v?3 and normal cells. Accordingly, the pentapeptide is useful in the diagnosis and treatment of cancers.Type: ApplicationFiled: October 26, 2015Publication date: May 24, 2018Applicant: CHINA PHARMACEUTICAL UNIVERSITYInventors: Yueqing GU, Congying ZHANG, Menglu ZHAO, Qian WANG, Caiping TIAN, Yuxi LIU
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Patent number: 9926259Abstract: The present invention relates to a catalyst for fixed bed aniline rectification residue recycling and preparation method thereof. Based on the total weight of the catalyst, the catalyst comprises the following components in percentage by weight: 5-40% of an active component, 2-30% of a first cocatalyst component, 10-30% of a second cocatalyst component and the balance of carrier, wherein the active component is NiO; the first cocatalyst component is one or more of Fe, Mo, Cr or Co oxide; and the second cocatalyst component is one or more of La, Zr, Y or Ce oxide. The catalyst is prepared through co-precipitation. The catalyst shows high activity and stability in the waste liquid treatment process, and can still maintain high rectification residue cracking rate after reaction of 200 hours.Type: GrantFiled: September 29, 2017Date of Patent: March 27, 2018Assignee: Wanhua Chemical Group Co., Ltd.Inventors: Hua Mei, Hao Chen, Dewei Yu, Congying Zhang, Hui Wang, Yuan Li, Zhongying Chen, Zilin Ni, Qingmei Jiang, Shanjian Cao, Zaigang Yang, Jun Qu, Jinhong Song, Bingbo Hu
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Publication number: 20180065916Abstract: The present invention relates to a catalyst for fixed bed aniline rectification residue recycling and preparation method thereof. Based on the total weight of the catalyst, the catalyst comprises the following components in percentage by weight: 5-40% of an active component, 2-30% of a first cocatalyst component, 10-30% of a second cocatalyst component and the balance of carrier, wherein the active component is NiO; the first cocatalyst component is one or more of Fe, Mo, Cr or Co oxide; and the second cocatalyst component is one or more of La, Zr, Y or Ce oxide. The catalyst is prepared through co-precipitation. The catalyst shows high activity and stability in the waste liquid treatment process, and can still maintain high rectification residue cracking rate after reaction of 200 hours.Type: ApplicationFiled: September 29, 2017Publication date: March 8, 2018Inventors: Hua Mei, Hao Chen, Dewei Yu, Congying Zhang, Hui Wang, Yuan Li, Zhongying Chen, Zilin Ni, Qingmei Jiang, Shanjian Cao, Zaigang Yang, Jun Qu, Jinhong Song, Bingbo Hu
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Patent number: 9580380Abstract: Disclosed is a method for preparing diamino-dicyclohexyl methane (H12MDA) by hydrogenation of diamino-diphenyl methane (MDA). In the process, 4,4?-MDA used as the starting material is firstly hydrogenated to prepare 4,4?-H12MDA. When the activity of the catalyst is reduced, the feed is switched from 4,4?-MDA to the mixture of 2,4?-MDA and 4,4?-MDA, and then when the conversion is stabilized, the feed is switched to 4,4?-MDA again. The deactivated catalyst is activated on line by switching the feed to the mixture of 2,4?-MDA and 4,4?-MDA. 4,4?-H12MDA having the trans-trans isomer content of 16˜24 wt % is produced, and the mixture of 2,4?-H12MDA and 4,4?-H12MDA is also produced, wherein the content of 2,4?-H12MDA in the mixture is 4˜15 wt %.Type: GrantFiled: November 22, 2013Date of Patent: February 28, 2017Assignee: Wanhua Chemical Group Co., Ltd.Inventors: Xin Li, Hao Chen, Congying Zhang, Shan Gao, Zhenguo Liu, Weijia Wang, Lei Tang, Zhipeng Liu, Yuan Li, Qingmei Jiang, Jinhong Song, Weiqi Hua, Hao Ding
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Publication number: 20160207876Abstract: The present invention relates to a catalyst for fixed bed aniline rectification residue recycling and preparation method thereof. Based on the total weight of the catalyst, the catalyst comprises the following components in percentage by weight: 5-40% of an active component, 2-30% of a first cocatalyst component, 10-30% of a second cocatalyst component and the balance of carrier, wherein the active component is NiO; the first cocatalyst component is one or more of Fe, Mo, Cr or Co oxide; and the second cocatalyst component is one or more of La, Zr, Y or Ce oxide. The catalyst is prepared through co-precipitation. The catalyst shows high activity and stability in the waste liquid treatment process, and can still maintain high rectification residue cracking rate after reaction of 200 hours.Type: ApplicationFiled: March 7, 2014Publication date: July 21, 2016Inventors: Hua Mei, Hao CHEN, Dewei YU, Congying ZHANG, Hui WANG, Yuan LI, Zhongying CHEN, Zilin NI, Qingmei JIANG, Shanjian CAO, Zaigang YANG, Jun QU, Jinhong SONG, Bingbo HU
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Publication number: 20160068472Abstract: Disclosed is a method for preparing diamino-dicyclohexyl methane (H12MDA) by hydrogenation of diamino-diphenyl methane (MDA). In the process, 4,4?-MDA used as the starting material is firstly hydrogenated to prepare 4,4?-H12MDA. When the activity of the catalyst is reduced, the feed is switched from 4,4?-MDA to the mixture of 2,4?-MDA and 4,4?-MDA, and then when the conversion is stabilized, the feed is switched to 4,4?-MDA again. The deactivated catalyst is activated on line by switching the feed to the mixture of 2,4?-MDA and 4,4?-MDA. 4,4?-H12MDA having the trans-trans isomer content of 16˜24 wt % is produced, and the mixture of 2,4?-H12MDA and 4,4?-H12MDA is also produced, wherein the content of 2,4?-H12MDA in the mixture is 4˜15 wt %.Type: ApplicationFiled: November 22, 2013Publication date: March 10, 2016Applicants: WANHUA CHEMICAL (NINGBO) CO., LTD., WANHUA CHEMICAL GROUP CO., LTD.Inventors: Xin LI, Hao CHEN, Congying ZHANG, Shan GAO, Zhenguo LIU, Weijia WANG, Lei TANG, Zhipeng LIU, Yuan LI, Qingmei JIANG, Jinhong SONG, Weiqi HUA, Hao DING