Patents by Inventor Po Wen Chung
Po Wen Chung 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: 20200086627Abstract: A vertical duplex rotary screen transfer printing device, comprising a vertical frame and at least one pair of rotary screen transfer printing assemblies horizontally opposite to each other. Each rotary screen transfer printing assembly comprises a rotary screen plate roller and a transfer roller arranged parallel to each other; the rotary screen plate roller transfers a pattern onto the transfer roller serving as a temporary transfer carrier; the transfer roller transfers the pattern onto a fabric passing in a vertical direction between the rotary screen transfer printing assemblies opposite to each other.Type: ApplicationFiled: May 28, 2018Publication date: March 19, 2020Inventor: Po-Wen Chung
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Publication number: 20190264384Abstract: A paperless transfer printing method includes the following steps: (a) printing, by a printing machine, aqueous ink onto a transfer printing temporary carrier in a set pattern, wherein a surface of the transfer printing temporary carrier is made of an elastic polymer material and a surface tension of the aqueous ink is less than the critical surface tension of the transfer printing temporary carrier; (b) drying the to-be-transferred pattern on the transfer printing temporary carrier; (c) wetting the transfer printing temporary carrier by using an aqueous surface tension increasing liquid; and (d) separating the aqueous solution or the aqueous dispersion liquid from the transfer printing temporary carrier at a tight-contact position between the transfer printing temporary carrier and the fabric, so that an aqueous ink dye is transferred onto the fiber of the fabric.Type: ApplicationFiled: February 16, 2017Publication date: August 29, 2019Inventor: Po-Wen Chung
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Publication number: 20190217600Abstract: A transfer dyeing method, includes: 1) coating a pretreating liquid on a front side of a fabric by a first pretreating anilox roller; 2) printing a dyeing ink on a first ink transfer roller or ink transfer ribbon by a first full-master printing plate roller; 3) transferring the dyeing ink to the front of the fabric; 4) drying the fabric and then making a back side of the fabric face to a second pretreating anilox roller; 5) coating the pretreating liquid on the back side of the fabric; 6) printing a dyeing ink that is same as or different from the dyeing ink of step 2) on a second transfer-roller or ink transfer ribbon; 7) transferring the dyeing ink to the back side of the fabric; and 8) drying the fabric, followed by color fixing, water washing and shaping.Type: ApplicationFiled: May 11, 2017Publication date: July 18, 2019Inventor: Po-Wen Chung
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Patent number: 9074102Abstract: The present invention relates to a cold transfer printing paste, a printing colorant and preparation methods thereof. Specifically, the present invention relates to: a cold transfer printing past, which contains polysaccharide, sodium L-pyrrolidonecarboxylate, an etherified starch and water; a printing colorant, which contains the paste of the present invention, an active dye, a defoamer, a flatting agent, a pH stabilizing agent and water; and preparation methods of the paste and the printing colorant. The cold transfer printing paste of the present invention and a printing colorant containing the paste are applicable in a cold transfer printing process, and have stable physical properties, thereby preventing decrease of the viscosity in use.Type: GrantFiled: July 15, 2011Date of Patent: July 7, 2015Assignee: Newtech Textile Technology Development(Shanghai) Co., LtdInventor: Po-Wen Chung
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Publication number: 20140256931Abstract: The present disclosure relates carbonaceous materials and to methods of using such carbonaceous materials for purifying oligomers produced from depolymerized biomass, such as lignocellulosic biomass.Type: ApplicationFiled: October 18, 2012Publication date: September 11, 2014Applicants: BP CORPORATION NORTH AMERICA INC., THE REGENTS OF THE UNIVERSITY OF CALIFORNIAInventors: Po-Wen Chung, Alexandre Charmot, Alexander Katz, Amit A. Gokhal
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Publication number: 20130118376Abstract: The present invention relates to a cold transfer printing paste, a printing colorant and preparation methods thereof. Specifically, the present invention relates to: a cold transfer printing past, which contains polysaccharide, sodium L-pyrrolidonecarboxylate, an etherified starch and water; a printing colorant, which contains the paste of the present invention, an active dye, a defoamer, a flatting agent, a pH stabilizing agent and water; and preparation methods of the paste and the printing colorant. The cold transfer printing paste of the present invention and a printing colorant containing the paste are applicable in a cold transfer printing process, and have stable physical properties, thereby preventing decrease of the viscosity in use.Type: ApplicationFiled: July 15, 2011Publication date: May 16, 2013Applicant: Newtech Textile Technology Development (Shanghai) Co., Ltd.Inventor: Po-Wen Chung
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Patent number: 8361623Abstract: The invention provides novel mesoporous particles and methods for the selective sequestration of organic compounds from microorganisms, such as from various genera and species of algae that produce important organic compounds. The organic compounds can be selectively sequestered, for example, in favor of biodiesel impurities such as sterols and chlorophyll, to provide substantially pure free fatty acids. The free fatty acids can then be esterified to provide pure biodiesel.Type: GrantFiled: February 2, 2010Date of Patent: January 29, 2013Assignee: Iowa State University Research Foundation, Inc.Inventors: Victor Shang-Yi Lin, Brian G. Trewyn, Po-Wen Chung, Igor Ivan Slowing
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Patent number: 7989039Abstract: A connecting material for cold transfer printing paper is provided and includes an acrylic coating agent composition as an isolating layer and an acrylic coating agent composition as an ink-receiving layer. Also provided is a method for preparing the connecting material for cold transfer printing paper, a cold transfer printing paper and a method for printing a pattern or letter on a fabric by using the cold transfer printing paper.Type: GrantFiled: June 21, 2007Date of Patent: August 2, 2011Assignee: Shanghai Newtech Fabric Printing Co., Ltd.Inventor: Po Wen Chung
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Patent number: 7968743Abstract: A thiocarbonylthio compound and free radical polymerization employing the same. The thiocarbonylthio compound is represented by formula (I) or (II): wherein Z can be independently perfluoroalkyl, alkyl, haloalkyl, aryl, alkylaryl, haloalkylaryl, arylalkyl, aminoalkyl, alkylamino, alkoxy, alkoxyaryl, alkylsulfonyl, alkylsulfonylaryl, dialkylphosphinyl, or dialkylphosphinothioyl; R1 and R2 can be each independently hydrogen, alkyl, aryl, alkylaryl, arylalkyl, aminoalkyl, alkylamino, alkoxy or alkoxyaryl; R3 is alkyl, aryl, aminoalkyl, alkylamino, alkoxy or alkoxyaryl. Furthermore, R3 can also be alkyl, aryl, alkylaryl, arylalkyl, aminoalkyl, alkylamino, alkoxy, haloalkylaryl, alkylsilyl, alkylthio, alkylthioaryl, or substituent containing CN, CO, COOH, COOCH3 or heterocyclic moieties; and R4 is perfluoroalkyl. The thiocarbonylthio compound can be used as a reversible chain transfer agent in a free radical polymerization to obtain a polymer with a controlled molecular weight and narrow polydispersity.Type: GrantFiled: November 4, 2009Date of Patent: June 28, 2011Assignee: Industrial Technology Research InstituteInventors: Kuo Chen Shih, Po Wen Chung, Mei Hua Wang
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Publication number: 20100196971Abstract: The invention provides novel mesoporous particles and methods for the selective sequestration of organic compounds from microorganisms, such as from various genera and species of algae that produce important organic compounds. The organic compounds can be selectively sequestered, for example, in favor of biodiesel impurities such as sterols and chlorophyll, to provide substantially pure free fatty acids. The free fatty acids can then be esterified to provide pure biodiesel.Type: ApplicationFiled: February 2, 2010Publication date: August 5, 2010Applicant: Iowa State University Research Foundation, Inc.Inventors: Victor Shang-Yi Lin, Brian G. Trewyn, Po-Wen Chung, Igor Ivan Slowing
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Publication number: 20100048844Abstract: A thiocarbonylthio compound and free radical polymerization employing the same. The thiocarbonylthio compound is represented by formula (I) or (II): wherein Z can be independently perfluoroalkyl, alkyl, haloalkyl, aryl, alkylaryl, haloalkylaryl, arylalkyl, aminoalkyl, alkylamino, alkoxy, alkoxyaryl, alkylsulfonyl, alkylsulfonylaryl, dialkylphosphinyl, or dialkylphosphinothioyl; R1 and R2 can be each independently hydrogen, alkyl, aryl, alkylaryl, arylalkyl, aminoalkyl, alkylamino, alkoxy or alkoxyaryl; R3 is alkyl, aryl, aminoalkyl, alkylamino, alkoxy or alkoxyaryl. Furthermore, R can also be alkyl, aryl, alkylaryl, arylalkyl, aminoalkyl, alkylamino, alkoxy, haloalkylaryl, alkylsilyl, alkylthio, alkylthioaryl, or substituent contaning CN, CO, COOH, COOCH3 or heterocyclic moieties; and R4 is perfluoroalkyl. The thiocarbonylthio compound can be used as a reversible chain transfer agent in a free radical polymerization to obtain a polymer with a controlled molecular weight and narrow polydispersity.Type: ApplicationFiled: November 4, 2009Publication date: February 25, 2010Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Kuo Chen Shih, Po Wen Chung, Mei Hua Wang
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Patent number: 7632959Abstract: A thiocarbonylthio compound and free radical polymerization employing the same. The thiocarbonylthio compound is represented by formula (I) or (II): wherein Z can be independently perfluoroalkyl, alkyl, haloalkyl, aryl, alkylaryl, haloalkylaryl, arylalkyl, aminoalkyl, alkylamino, alkoxy, alkoxyaryl, alkylsulfonyl, alkylsulfonylaryl, dialkylphosphinyl, or dialkylphosphinothioyl; R1 and R2 can be each independently hydrogen, alkyl, aryl, alkylaryl, arylalkyl, aminoalkyl, alkylamino, alkoxy or alkoxyaryl; R3 is alkyl, aryl, aminoalkyl, alkylamino, alkoxy or alkoxyaryl. Furthermore, R can also be alkyl, aryl, alkylaryl, arylalkyl, aminoalkyl, alkylamino, alkoxy, haloalkylaryl, alkylsilyl, alkylthio, alkylthioaryl, or substituent contaning CN, CO, COOH, COOCH3 or heterocyclic moieties; and R4 is perfluoroalkyl. The thiocarbonylthio compound can be used as a reversible chain transfer agent in a free radical polymerization to obtain a polymer with a controlled molecular weight and narrow polydispersity.Type: GrantFiled: May 24, 2005Date of Patent: December 15, 2009Assignee: Industrial Technology Research InstituteInventors: Kuo Chen Shih, Po Wen Chung, Mei Hua Wang
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Publication number: 20080280758Abstract: A connecting material for cold transfer printing paper is provided and includes an acrylic coating agent composition as an isolating layer and an acrylic coating agent composition as an ink-receiving layer. Also provided is a method for preparing the connecting material for cold transfer printing paper, a cold transfer printing paper and a method for printing a pattern or letter on a fabric by using the cold transfer printing paper.Type: ApplicationFiled: June 21, 2007Publication date: November 13, 2008Applicants: SHANGHAI NEWTECH FABRIC PRINTING CO., LTD., Shanghai Difang Textile Technological Flocking Co., Ltd.Inventor: Po Wen Chung
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Publication number: 20080168915Abstract: Apparatus for cold transfer printing by means of rollers, comprising: a pair of rollers consisting of a main roller and a pressure roller, the center lines thereof being parallel with each other, the pressure roller being in close contact with the circumferential surface of the main roller, the main roller being connected with the transmission mechanism of a cold transfer printing machine, a spindle of the main roller being fixedly coupled with a frame of the machine through bearings, bearing supports and positioning and adjusting means disposed on the two ends of the spindle, and a spindle of the pressure roller being provided with bearings on the two ends thereof and connected with pressing means, with the pressure direction being directed toward the center of the main roller; and at least one auxiliary roller, situated on the side of a line joining centers of the main and pressure rollers and being in close contact with the circumferential surface of the main roller, a spindle of the auxiliary roller beingType: ApplicationFiled: May 15, 2007Publication date: July 17, 2008Applicant: SHANGHAI NEWTECH FABRIC PRINTING CO., LTD.Inventor: Po-Wen Chung
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Publication number: 20080097451Abstract: A surgical tool assembly for Total Knee Arthroplasty (TKA) including a femoral intra-medullary (IM) rod, a femoral intra-medullary (IM) alignment guide, a distal femoral alignment guide, and a distal femoral cutting guide. After the femoral IM alignment guide is selected to fit the valgus angle and utilized with the femoral IM rod with respect to the distal femur, the distal femoral alignment guide is integrated to the complex. Then, the distal femoral cutting guide is slid to the distal femoral alignment guide in the orientation from distal to proximal through the sliding concave integrated with the sliding track.Type: ApplicationFiled: September 20, 2006Publication date: April 24, 2008Applicants: United Orthopedic Corporation, Ing-Ho ChenInventors: Ing-Ho Chen, Po-Wen Chung, Shou-Heng Pao