Patents by Inventor Fosong Wang
Fosong 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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Patent number: 10494477Abstract: This invention provides a production method of a poly(carbonate-ether)polyol, comprising the steps of: performing a reaction between a carboxylic acid and an epoxide to obtain an intermediate, wherein the carboxylic acid has an acidity constant of 0.2 to 4; and performing a polymerization reaction between the intermediate and carbon dioxide under the action of a rare earth doped double metal cyanide of Zn3[Co(CN)6]2 to obtain a poly(carbonate-ether)polyol. In the production method of the poly(carbonate-ether)polyol provided by this invention, a carboxylic acid having a suitable acidity constant is used as an initiator and an epoxide is firstly activated by using the carboxylic acid, and polyethers having different molecular weights generated in situ after activation are used as chain transfer agents to be involved in the polymerization reaction between carbon dioxide and the epoxide under the action of a rare earth doped double metal cyanide Zn3[Co(CN)6]2.Type: GrantFiled: December 10, 2015Date of Patent: December 3, 2019Assignee: Changchun Institute of Applied Chemistry Chinese Academy of SciencesInventors: Shunjie Liu, Yusheng Qin, Xianhong Wang, Lijun Qiao, Fosong Wang
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Publication number: 20180215869Abstract: This invention provides a production method of a poly(carbonate-ether)polyol, comprising the steps of: performing a reaction between a carboxylic acid and an epoxide to obtain an intermediate, wherein the carboxylic acid has an acidity constant of 0.2 to 4; and performing a polymerization reaction between the intermediate and carbon dioxide under the action of a rare earth doped double metal cyanide of Zn3[Co(CN)6]2 to obtain a poly(carbonate-ether)polyol. In the production method of the poly(carbonate-ether)polyol provided by this invention, a carboxylic acid having a suitable acidity constant is used as an initiator and an epoxide is firstly activated by using the carboxylic acid, and polyethers having different molecular weights generated in situ after activation are used as chain transfer agents to be involved in the polymerization reaction between carbon dioxide and the epoxide under the action of a rare earth doped double metal cyanide Zn3[Co(CN)6]2.Type: ApplicationFiled: December 10, 2015Publication date: August 2, 2018Inventors: Shunjie Liu, Yusheng Qin, Xianhong Wang, Lijun Qiao, Fosong Wang
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Patent number: 10005806Abstract: The present invention provides a metalporphyrin complex having structure represented by formula (I), wherein R1, R2, R3, R4, R5, R6, R7, R8, R9 and R10 are independently selected from one of hydrogen, halogen, aliphatic group, substituted heteroaliphatic group, aryl and substituted heteroaryl; n is 1-6; L is quaternary ammonium functional group or quaternary phosphonium functional group; M is a metal element; and X is one of halogen, —NO3, BF4—, —CN, p-methyl benzoate, o-nitrophenol oxygen anion, 2,4-dinitrophenol oxygen anion, 2,4,6-trinitrophenol oxygen anion, 3,5-dichlorophenol oxygen anion and pentafluorophenol oxygen anion. The metalporphyrin complex provided in the present invention has two quaternary ammonium functional groups or two quaternary phosphonium functional groups, and compared with the prior art, the metalporphyrin complex shows higher catalytic activity in catalyzing polymerization reaction of carbon dioxide and an epoxide.Type: GrantFiled: October 16, 2013Date of Patent: June 26, 2018Assignee: Changchun Institute of Applied Chemistry, Chinese Academy of SciencesInventors: Wei Wu, Yusheng Qin, Shuangbin Fu, Xianhong Wang, Fosong Wang
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Publication number: 20160194346Abstract: The present invention provides a metalporphyrin complex having structure represented by formula (I), wherein R1, R2, R3, R4, R5, R6, R7, R8, R9 and R10 are independently selected from one of hydrogen, halogen, aliphatic group, substituted heteroaliphatic group, aryl and substituted heteroaryl; n is 1-6; L is quaternary ammonium functional group or quaternary phosphonium functional group; M is a metal element; and X is one of halogen, —NO3, BF4—, —CN, p-methyl benzoate, o-nitrophenol oxygen anion, 2,4-dinitrophenol oxygen anion, 2,4,6-trinitrophenol oxygen anion, 3,5-dichlorophenol oxygen anion and pentafluorophenol oxygen anion. The metalporphyrin complex provided in the present invention has two quaternary ammonium functional groups or two quaternary phosphonium functional groups, and compared with the prior art, the metalporphyrin complex shows higher catalytic activity in catalyzing polymerization reaction of carbon dioxide and an epoxide.Type: ApplicationFiled: October 16, 2013Publication date: July 7, 2016Inventors: Wei WU, Yusheng QIN, Shuangbin FU, Xianhong WANG, Fosong WANG
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Publication number: 20110311794Abstract: The present invention discloses a biodegradable complex oxygen barrier film and its preparation method and application. The biodegradable complex oxygen barrier film disclosed by the present invention is constituted of at least two support layers and a barrier layer which is deposed between each two support layers. The support layer is selected from at least one of the following substances: polylactic acid, poly(butylene succinate), polycaprolactone, poly(adipate-butylene telephthalate), poly(?-hydroxybutyrate) and poly(?-hydroxybutyrate-valerate); the barrier layer which is deposed between the each two support layers is same or different, the barrier layer is selected from any one of the following: poly(propylene carbonate) and nano montmorillonite modified poly(propylene carbonate).Type: ApplicationFiled: June 19, 2009Publication date: December 22, 2011Inventors: Qinghai Zhou, Xianhong Wang, Fengxiang Gao, Xiaojiang Zhao, Fosong Wang, Songbao Fu, Keyu Chen, Liangliang Wang, Buning Chen, Jianbo Xu, Guozhong Wang
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Patent number: 7579091Abstract: This invention relates to a white electroluminescent polymeric material and preparation thereof. Based on the physical idea that white light emission can be achieved by regulating the relative luminous intensities of blue- and orange-light emitting units located in a single polymer molecule, the present invention provides three types (main chain type, pendant chain type, and terminal group type) of high efficiency and stable white electroluminescent polymeric material systems.Type: GrantFiled: January 26, 2005Date of Patent: August 25, 2009Assignee: Changchun Institute of Applied Chemistry Chinese Academy of ScienceInventors: Lixiang Wang, Guoli Tu, Jianxin Cao, Jun Liu, Dongge Ma, Xia Bin Jing, Fosong Wang
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Publication number: 20070270570Abstract: This invention relates to a white electroluminescent polymeric material and preparation thereof. Based on the physical idea that white light emission can be achieved by regulating the relative luminous intensities of blue- and orange-light emitting units located in a single polymer molecule, the present invention provides three types (main chain type, pendant chain type, and terminal group type) of high efficiency and stable white electroluminescent polymeric material systems.Type: ApplicationFiled: July 17, 2007Publication date: November 22, 2007Applicant: CHANGCHUN INSTITUTE OF APPLIED CHEMISTRY CHINES ACADEMY OF SCIENCEInventors: Lixiang Wang, Guoli Tu, Jianxin Cao, Jun Liu, Dongge Ma, Xiabin Jing, Fosong Wang
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Publication number: 20070117908Abstract: The present invention relates to improvement of the brittleness and cold flowability of a carbon dioxide-propylene oxide copolymer (PPC). The invention provides a blend comprising 50 to 98 parts by weight of a PPC; 2 to 50 parts by weight of a poly(butylenes succinate) (PBS) or poly(butylene succinate/adipate) (PBSA); 1 part by weight of a maleic anhydride, and 0.5 to 3.0 parts by weight of SiO2 and a method for producing the same. Compared with the pure PPC, the elongation rate at break of the blend of the invention increases by 3 to 15 times while the tensile strength maintains at 30 MPa or more. The blend of the PPC and PBSA can keep its dimension stably at 70° C., while the blend of the PPC and PBSA can keep its dimension stably at 55° C. No viscous flow occurs at these temperatures.Type: ApplicationFiled: October 31, 2006Publication date: May 24, 2007Inventors: Qinghai Zhou, Xiaojiang Zhao, Xianhong Wang, Fosong Wang, Tao Xiong, Fengxiang Gao
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Publication number: 20070117936Abstract: The invention relates to a polymeric end-capping reagent for carbon dioxide-epoxide copolymers and a method for producing the same. The polymeric end-capping reagents provided by the invention are maleic anhydride copolymers and maleic anhydride terpolymers. The polymeric end-capping reagent for carbon dioxide-propylene oxide copolymers of the invention is produced by a radical solution copolymerization method, and has a number average molecular weight of Mn=4-6×104, a distribution index of 1.5-3.0. By using the polymeric end-capping reagent provided by the invention, the disadvantages of the small molecular end-capping reagent like volatilization during melting and precipitation on the melt surface during cooling, can be effectively overcome, moreover, the initial thermal decomposition temperatures of the carbon dioxide-propylene oxide copolymers end-capped with the polymeric end-capping reagents increase by about 30° C.Type: ApplicationFiled: October 31, 2006Publication date: May 24, 2007Inventors: Tao Xiong, Xiaojiang Zhao, Xianhong Wang, Fosong Wang, Jiadong Min, Qinghai Zhou, Lijun Qiao
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Publication number: 20050214568Abstract: This invention relates to a white electroluminescent polymeric material and preparation thereof. Based on the physical idea that white light emission can be achieved by regulating the relative luminous intensities of blue- and orange-light emitting units located in a single polymer molecule, the present invention provides three types (main chain type, pendant chain type, and terminal group type) of high efficiency and stable white electroluminescent polymeric material systems.Type: ApplicationFiled: January 26, 2005Publication date: September 29, 2005Inventors: Lixiang Wang, Guoli Tu, Jianxin Cao, Jun Liu, Dongge Ma, Xia Jing, Fosong Wang
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Patent number: 6815529Abstract: This invention relates to a catalyst for producing aliphatic polycarbonate, which is composed of a rare-earth coordination compound; an alkyl metal compound; a polyol; and a carbonate. The catalytic efficiency of the catalyst of the present invention is more than 8×104 g polymer/mol RE(RE is rare earth metal). The number average molecular weight of the polymer is higher than 30,000. The degree of carbon dioxide fixation is more than 42 wt % and the content of alternative sequence structure exceeds 97%.Type: GrantFiled: August 29, 2001Date of Patent: November 9, 2004Assignee: Changchun Institute of Applied Chemistry Chinese Academy of SciencesInventors: Xiaojiang Zhao, Xianhong Wang, Fosong Wang
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Patent number: 6599577Abstract: The present invention provides a method of preparation for a degradable, water and oil resistant protective membrane. In the said method, carbon dioxide copolymer is dissolved in a low toxic or non-toxic solvent to form a solution of 3-6 wt % concentration. After standing and filtration to remove metal oxide, the solution is used to coat the surface of the fabricated starch, paper pulp, or straw tableware by spraying or dipping. The residual solvent is removed by drying process and a degradable, water and oil resistant and transparent protective membrane is obtained. The thickness of the protective membrane is in the range of 10-20 micrometer. Metal ion content is lower than 1 ppm. No leakage and deformation of the tableware are observed after the tableware is immerged in water or edible oil for 4 hours at 80° C. The decoloration test by cold edible oil and ethanol is negative. Fungus test gives grade V.Type: GrantFiled: February 8, 2002Date of Patent: July 29, 2003Assignee: Changchun Institute of Applied Chemistry-Chinese Academy of SciencesInventors: Xiaojiang Zhao, Xianhong Wang, Fosong Wang
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Publication number: 20030018162Abstract: The present invention provides a method of preparation for a degradable, water and oil resistant protective membrane. In the said method, carbon dioxide copolymer is dissolved in a low toxic or non-toxic solvent to form a solution of 3-6 wt % concentration. After standing and filtration to remove metal oxide, the solution is used to coat the surface of the fabricated starch, paper pulp, or straw tableware by spraying or dipping. The residual solvent is removed by drying process and a degradable, water and oil resistant and transparent protective membrane is obtained. The thickness of the protective membrane is in the range of 10-20 micrometer. Metal ion content is lower than 1 ppm. No leakage and deformation of the tableware are observed after the tableware is immerged in water or edible oil for 4 hours at 80° C. The decoloration test by cold edible oil and ethanol is negative. Fungus test gives grade V.Type: ApplicationFiled: February 8, 2002Publication date: January 23, 2003Applicant: Changchun Institute of Applied Chemistry-Chinese Academy of SciencesInventors: Xiaojiang Zhao, Xianhong Wang, Fosong Wang
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Publication number: 20020082363Abstract: This invention relates to a catalyst for producing aliphatic polycarbonate, which is composed of a rare-earth coordination compound; an alkyl metal compound; a polyol; and a carbonate. The catalytic efficiency of the catalyst of the present invention is more than 8×104 g polymer/mol RE(RE is rare earth metal). The number average molecular weight of the polymer is higher than 30,000. The degree of carbon dioxide fixation is more than 42 wt % and the content of alternative sequence structure exceeds 97%.Type: ApplicationFiled: August 29, 2001Publication date: June 27, 2002Inventors: Xiaojiang Zhao, Xianhong Wang, Fosong Wang