Patents by Inventor Shufen Zhang
Shufen 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: 11964461Abstract: A structurally stable composite structural chromogenic material and a preparation method thereof are provided. The structurally stable composite structural chromogenic material is formed by stacking a transparent thermoplastic polymer and a structural chromogenic material layer by layer and then thermally bonding the peripheral edges of the polymer into a whole, and the upper surface layer and the lower surface layer of the material are both thermoplastic polymers. The molded composite structure has relatively obvious structural color and good mechanical strength.Type: GrantFiled: June 3, 2020Date of Patent: April 23, 2024Assignee: DALIAN UNIVERSITY OF TECHNOLOGYInventors: Bingtao Tang, Fantao Meng, Suli Wu, Shufen Zhang
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Publication number: 20230183407Abstract: A double-inverse opal photonic crystal resin film is formed by embedding nanospheres in pores of polyacrylate inverse opal framework material and then filling the pores of the double-inverse opal photonic crystal resin film with an ethanol solution with hydrophilic acrylamide dissolved therein followed by photopolymerization to form a polyacrylamide network, so as to obtain the double-inverse opal photonic crystal resin film using water as ink. A mass fraction of hydrophilic acrylamide in the ethanol solution is 2 to 8 wt.%. The resin film can induce water to penetrate into the pores of the double-inverse opal photonic crystal resin film, making the nanospheres in the pores of the inverse opal framework distribute from random to order under the action of buoyancy force, thereby eliminating scattering interference and producing brilliant structural colors by regulating refractive index contrast.Type: ApplicationFiled: October 5, 2022Publication date: June 15, 2023Inventors: Shufen ZHANG, Changtong ZHOU, Wenbin NIU, Wei MA, Bingtao TANG, Suli WU
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Publication number: 20230142236Abstract: A structurally stable composite structural chromogenic material and a preparation method thereof are provided. The structurally stable composite structural chromogenic material is formed by stacking a transparent thermoplastic polymer and a structural chromogenic material layer by layer and then thermally bonding the peripheral edges of the polymer into a whole, and the upper surface layer and the lower surface layer of the material are both thermoplastic polymers. The molded composite structure has relatively obvious structural color and good mechanical strength.Type: ApplicationFiled: June 3, 2020Publication date: May 11, 2023Inventors: Bingtao TANG, Fantao MENG, Suli WU, Shufen ZHANG
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Publication number: 20230003993Abstract: A bilayer photonic crystal photoswitch thin-film device having the optical characteristics of both 2D and 3D photonic crystals, and a preparation method thereof are provided. When the bilayer photonic crystal photoswitch thin-film device is rotated periodically, different colors can be observed at a fixed rotation angle, that is, the device has the attribute of changing colors by means of rotation, and can thus realize the opening and closing of an optical path. The bilayer photonic crystal photoswitch thin-film new device has broad application prospects in the fields of photoswitches, optical waveguides, optical prisms, warming signs, anti-counterfeiting and information coding, etc.Type: ApplicationFiled: September 8, 2020Publication date: January 5, 2023Inventors: Shufen ZHANG, Yong QI, Wenbin NIU, Suli WU, Wei MA, Bingtao TANG
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Patent number: 11479701Abstract: The present invention relates to the technical field of new materials, and relates to a thermal conduction enhanced organic composite shape-stabilized phase change material and a preparation method thereof. A thermal conduction enhanced organic composite shape-stabilized phase change material, which is composed of a coordination crosslinked network polymer, an organic solid-liquid phase change material and a thermal conduction enhancer, the mass percent are as follows: coordination crosslinked network polymer 1-50%, organic solid-liquid phase change material 40-98.9%, and thermal conduction enhancer 0.1-10%, the coordination crosslinked network polymer being formed by complexing of polymer compound with metal ions. The invention has simple synthesis process and convenient applications, the material having large enthalpy of phase change, excellent shape stabilizing effect, while the phenomenon of liquid leakage will not occur during operation.Type: GrantFiled: June 7, 2018Date of Patent: October 25, 2022Assignee: DALIAN UNIVERSITY OF TECHNOLOGYInventors: Bingtao Tang, Xiaoqiao Fan, Yuang Zhang, Rongwen Lv, Shufen Zhang
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Publication number: 20220113258Abstract: Provided is a test paper kit for rapid graded quantitative detection of aromatic primary amine content in an acidic solution and an application thereof, and belongs to the field of detection. A test paper kit for rapid graded quantitative detection of aromatic primary amine content in an acidic solution, including 9 independent test paper sheets I-IX, wherein the test paper sheets are obtained by soaking filter paper in the following solutions respectively and then drying the filter paper: the test paper sheets I-III are soaked in alcoholic solutions of p-dimethylaminobenzaldehyde with three concentrations respectively; the test paper sheets IV-VI are soaked in alcoholic solutions of p-hydroxybenzaldehyde with three concentrations respectively, and the test paper sheets VII-IX are soaked in alcoholic solutions of p-methoxybenzaldehyde with three concentrations respectively.Type: ApplicationFiled: December 17, 2021Publication date: April 14, 2022Inventors: Shufen ZHANG, Lei LI, Huaixi LIU, Rongwen LV, Bingtao TANG, Wei MA
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Publication number: 20220025238Abstract: A composite material is applicable for photothermal energy conversion and thermal energy storage form-stable phase change. The composite material includes a supporting material and an organic phase-change material. The mass ratio of the supporting material to the organic phase change material is 3:7 to 1:9. The supporting material is lamellar, and the organic phase change material is evenly filled between supporting material layers to form a layered stacked structure. The supporting material is a nanosheet of Ti2C, Ti3C2, Ti3CN, V2C, Nb2C, TiNBC, Nb4C3, TA4C3, (Ti0.5Nb0.5)2C, or (V0.5Cr0.5)3C2. The organic phase-change material is paraffin, fatty acid, fatty acid ester or alcohol compound.Type: ApplicationFiled: June 18, 2019Publication date: January 27, 2022Inventors: Bingtao TANG, Xiaoqiao FAN, Lu LIU, Yuang ZHANG, Shufen ZHANG
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Patent number: 11091661Abstract: A method for preparing a large-area structural chromogenic pattern by ink-jet printing, a structural chromogenic pattern obtained by the method, and an anti-counterfeiting method based on a structural color change. A dispersion liquid containing mono-disperse colloidal microspheres with high index of refraction is printed onto a piece of paper by using an ink-jet printer, and nano-microspheres are arranged and assembled on the paper to obtain a micro-structure having the features of being ordered from a short distance and disordered from a long distance. A pretty structural color can be observed by means of the interaction of the structure with light, thus displaying a pattern, changing the angle of observation, changing the brightness of the structural color, and hiding and displaying the pattern. The method is simple and convenient, is widely applicable, and can achieve the preparation and anti-counterfeiting of a large-area structural color without external stimulation.Type: GrantFiled: March 14, 2018Date of Patent: August 17, 2021Assignee: DALIAN UNIVERSITY OF TECHNOLOGYInventors: Suli Wu, Jie Chang, Baoqi Liu, Shufen Zhang
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Publication number: 20200095489Abstract: The present invention relates to the technical field of new materials, and relates to a thermal conduction enhanced organic composite shape-stabilized phase change material and a preparation method thereof. A thermal conduction enhanced organic composite shape-stabilized phase change material, which is composed of a coordination crosslinked network polymer, an organic solid-liquid phase change material and a thermal conduction enhancer, the mass percent are as follows: coordination crosslinked network polymer 1-50%, organic solid-liquid phase change material 40-98.9%, and thermal conduction enhancer 0.1-10%, the coordination crosslinked network polymer being formed by complexing of polymer compound with metal ions. The invention has simple synthesis process and convenient applications, the material having large enthalpy of phase change, excellent shape stabilizing effect, while the phenomenon of liquid leakage will not occur during operation.Type: ApplicationFiled: June 7, 2018Publication date: March 26, 2020Inventors: Bingtao TANG, Xiaoqiao FAN, Yuang ZHANG, Rongwen LV, Shufen ZHANG
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Publication number: 20200010703Abstract: A method for preparing a large-area structural chromogenic pattern by ink-jet printing, a structural chromogenic pattern obtained by the method, and an anti-counterfeiting method based on a structural color change. A dispersion liquid containing mono-disperse colloidal microspheres with high index of refraction is is printed onto a piece of paper by using an ink-jet printer, and nano-microspheres are arranged and assembled on the paper to obtain a micro-structure having the features of being ordered from a short distance and disordered from a long distance. A pretty structural color can be observed by means of the interaction of the structure with light, thus displaying a pattern, changing the angle of observation, changing the brightness of the structural color, and hiding and displaying the pattern. The method is simple and convenient, is widely applicable, and can achieve the preparation and anti-counterfeiting of a large-area structural color without external stimulation.Type: ApplicationFiled: March 14, 2018Publication date: January 9, 2020Inventors: Suli WU, Jie CHANG, Baoqi LIU, Shufen ZHANG
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Patent number: 9394445Abstract: Disclosed is a method for continuously preparing a water-soluble azo dye by coupling a nebulizer with a pipeline. According to the method, the nebulizer is coupled with a pipeline with an interception tower plate, atomized and mixed reaction liquid flow flows through the pipeline with the interception tower plate, and mixing and reacting are further enhanced through turbulent mixing on the tower plate, so that instant separation of reaction heat generated in an atomizing contact reaction from a reactant is achieved, and normal-temperature rapid continuous production of the water-soluble azo dye is achieved. Fog drops which are atomized by using the nebulizer have small particle diameter and large specific surface area, so that a diazo salt and a coupling component are sprayed separately, move face to face and can be fully contacted, and mixing and reacting speeds are increased.Type: GrantFiled: November 30, 2012Date of Patent: July 19, 2016Assignee: DALIAN UNIVERSITY OF TECHNOLOGYInventors: Shufen Zhang, Bingtao Tang, Rongwen Lv, Dong Liang
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Patent number: 9193696Abstract: The present invention provides a group of water-soluble sulfur dye having carboxyl groups. For the kind of dye, a sulfur dye is first reduced to a leuco compound by sodium sulfide, and the leuco compound reacts with an active compound containing carboxyl groups to obtain a water-soluble sulfur dye containing the carboxyl group. The water-soluble sulfur dye provided by the present invention is applicable to dying of cotton, wool, silk, and leather. Being both water-soluble and carboxyl group reactive, the product has a simple application process and desirable color fastness, thereby having broad application prospects.Type: GrantFiled: November 30, 2012Date of Patent: November 24, 2015Assignee: Dalian University of TechnologyInventors: Bingtao Tang, Shufen Zhang, Wei Ma
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Patent number: 9040634Abstract: The present invention provides a polycarboxylic acid dye with low polymerization degree, which is formed by using a macromolecule skeleton of polymaleic acid linked to an azo chromophore, an azo-metal complexation chromophore or an anthraquinone chromophore via a bridge group of amide or ester bond. The dye is useful for dyeing and printing leather, protein fiber, cellulose fiber and synthetic fiber.Type: GrantFiled: May 23, 2011Date of Patent: May 26, 2015Assignee: DALIAN UNIVERSITY OF TECHNOLOGYInventors: Shufen Zhang, Bingtao Tang, Wei Ma
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Publication number: 20150073132Abstract: Disclosed is a method for continuously preparing a water-soluble azo dye by coupling a nebulizer with a pipeline. According to the method, the nebulizer is coupled with a pipeline with an interception tower plate, atomized and mixed reaction liquid flow flows through the pipeline with the interception tower plate, and mixing and reacting are further enhanced through turbulent mixing on the tower plate, so that instant separation of reaction heat generated in an atomizing contact reaction from a reactant is achieved, and normal-temperature rapid continuous production of the water-soluble azo dye is achieved. Fog drops which are atomized by using the nebulizer have small particle diameter and large specific surface area, so that a diazo salt and a coupling component are sprayed separately, move face to face and can be fully contacted, and mixing and reacting speeds are increased.Type: ApplicationFiled: November 30, 2012Publication date: March 12, 2015Inventors: Shufen Zhang, Bingtao Tang, Rongwen Lv, Dong Liang
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Publication number: 20150065707Abstract: The present invention provides a group of water-soluble sulfur dye having carboxyl groups. For the kind of dye, a sulfur dye is first reduced to a leuco compound by sodium sulfide, and the leuco compound reacts with an active compound containing carboxyl groups to obtain a water-soluble sulfur dye containing the carboxyl group. The water-soluble sulfur dye provided by the present invention is applicable to dying of cotton, wool, silk, and leather. Being both water-soluble and carboxyl group reactive, the product has a simple application process and desirable color fastness, thereby having broad application prospects.Type: ApplicationFiled: November 30, 2012Publication date: March 5, 2015Applicant: DALIAN UNIVERSITY OF TECHNOLOGYInventors: Bingtao Tang, Shufen Zhang, Wei Ma
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Publication number: 20130289218Abstract: The present invention provides a polycarboxylic acid dye with low polymerization degree, which is formed by using a macromolecule skeleton of polymaleic acid linked to an azo chromophore, an azo-metal complexation chromophore or an anthraquinone chromophore via a bridge group of amide or ester bond. The dye is useful for dyeing and printing leather, protein fiber, cellulose fiber and synthetic fiber.Type: ApplicationFiled: May 23, 2011Publication date: October 31, 2013Applicant: Dalian University of TechnologyInventors: Shufen Zhang, Bingtao Tang, Wei Ma
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Patent number: 7504046Abstract: The invention provides a kind of polymer grafted long afterglow phosphor which composed of alkali earth aluminate phosphor grafted by polymer through coordination bond and a method for producing the same. The method for producing a polymer grafted phosphor comprise two steps: the alkali earth aluminate activated by rare earth ions is coordinated with difunctional ligand to form a coordinated long afterglow phosphor; The coordinated long afterglow phosphor was dispersed in organic solvent at 40˜130° C., the ligand was initiated by initiator and could copolymerize with other polymerizable monomer to form the polymer grafted long afterglow phosphor. The formed phosphors have good water resistance and luminescent properties. They can be widely used in fields of luminescent coatings, paints and plastics.Type: GrantFiled: August 22, 2006Date of Patent: March 17, 2009Assignee: Dalian University of TechnologyInventors: Shufen Zhang, Suli Wu, Jinzong Yang
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Publication number: 20070221886Abstract: The invention provides a kind of polymer grafted long afterglow phosphor which composed of alkali earth aluminate phosphor grafted by polymer through coordination bond and a method for producing the same. The method for producing a polymer grafted phosphor comprise two steps: the alkali earth aluminate activated by rare earth ions is coordinated with difunctional ligand to form a coordinated long afterglow phosphor; The coordinated long afterglow phosphor was dispersed in organic solvent at 40˜130° C., the ligand was initiated by initiator and could copolymerize with other polymerizable monomer to form the polymer grafted long afterglow phosphor. The formed phosphors have good water resistance and luminescent properties. They can be widely used in fields of luminescent coatings, paints and plastics.Type: ApplicationFiled: August 22, 2006Publication date: September 27, 2007Applicant: Dalian University of TechnologyInventors: Shufen Zhang, Suli Wu, Jinzong Yang
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Patent number: 6689870Abstract: Protein macromolecular dyes, A(B)b are disclosed, wherein A are protein macromolecules including natural protein macromolecules and modified natural protein macromolecules such as casein, gelatin and fur-protein; B are dyes including azo dyes, azo metal complex dyes and anthraquinone dyes which can react with the amino groups of the natural and modified protein macromolecules; b are integers between 1˜2500. The protein macromolecular dyes have excellent properties of crosslinking ability, better dyeing fastness, fixation ration than conventional dyes and the function of normal macromolecules such as compatibility, abilities of filling and forming membranes. They may be used in dyeing protein materials such as leather, wool and silk.Type: GrantFiled: July 16, 1998Date of Patent: February 10, 2004Assignees: China Petro-Chemical Corporation, Dalian University of TechnologyInventors: Jinzong Yang, Shufen Zhang