Patents by Inventor Jing-Cherng Tsai
Jing-Cherng Tsai 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: 20240076422Abstract: A supported metallocene catalyst includes a carrier and a metallocene component. The carrier includes an inorganic oxide particle and an alkyl aluminoxane material. The inorganic oxide particle includes at least one inorganic oxide compound selected from the group consisting of an oxide of Group 3A and an oxide of Group 4A. The alkyl aluminoxane material includes an alkyl aluminoxane compound and an alkyl aluminum compound that is present in amount ranging from greater than 0.01 wt % to less than 14 wt % base on 100 wt % of the alkyl aluminoxane material. The metallocene component is supported on the carrier, and includes one of a metallocene compound containing a metal from Group 3B, a metallocene compound containing a metal from Group 4B, and a combination thereof. A method for preparing the supported metallocene catalyst and a method for preparing polyolefin using the supported metallocene catalyst are also disclosed.Type: ApplicationFiled: September 1, 2023Publication date: March 7, 2024Inventors: Jing-Cherng TSAI, Jen-Long WU, Wen-Hao KANG, Kuei-Pin LIN, Jing-Yu LEE, Jun-Ye HONG, Zih-Yu SHIH, Cheng-Hung CHIANG, Gang-Wei SHEN, Yu-Chuan SUNG, Chung-Hua WENG, Hsing-Ya CHEN
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Patent number: 11827751Abstract: A nanonetwork with controlled chirality prepared via self-assembly of triblock terpolymers, wherein each of the triblock terpolymers includes a first block, a second block and a third block. The first block is connected to the second block, and the third block is connected to the second block. The first block, the second block and the third block are incompatible. The third block has a homochiral characteristic, and a chirality of the nanonetwork with controlled chirality is determined by the homochiral characteristic.Type: GrantFiled: October 14, 2021Date of Patent: November 28, 2023Assignee: NATIONAL TSING HUA UNIVERSITYInventors: Hsiao-Fang Wang, Po-Ting Chiu, Chih-Ying Yang, Zhi-Hong Xie, Yu-Chueh Hung, Jing-Yu Lee, Jing-Cherng Tsai, Ishan Prasad, Hiroshi Jinnai, Edwin L. Thomas, Rong-Ming Ho
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Publication number: 20220411590Abstract: A nanonetwork with controlled chirality prepared via self-assembly of triblock terpolymers, wherein each of the triblock terpolymers includes a first block, a second block and a third block. The first block is connected to the second block, and the third block is connected to the second block. The first block, the second block and the third block are incompatible. The third block has a homochiral characteristic, and a chirality of the nanonetwork with controlled chirality is determined by the homochiral characteristic.Type: ApplicationFiled: October 14, 2021Publication date: December 29, 2022Inventors: Hsiao-Fang WANG, Po-Ting CHIU, Chih-Ying YANG, Zhi-Hong XIE, Yu-Chueh HUNG, Jing-Yu LEE, Jing-Cherng TSAI, Ishan PRASAD, Hiroshi JINNAI, Edwin L. THOMAS, Rong-Ming HO
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Patent number: 7700694Abstract: A catalyst composition and a method for hydrogenating a polymer having a conjugated diene are provided. The catalyst composition includes (a) a first composition having one of a bis(cyclopendienyl, fluorenyl, indenyl and derivatives thereof) titanium compound and a mixture thereof; (b) a second composition having one selected from the group consisting of a first compound of a formula (II), a second compound of a formula (III) and a mixture thereof: wherein the formula (II) has a chain structure, the formula (III) has a cyclic structure, the R is C1˜C12 alkyl, the X1 and X2 are ones selected from the group consisting of C1˜C12 alkyl, C1˜C12 cycloalkoxy, aryl, C1˜C12 alkyl aryl and carbonyl, and n>1 and m>2; and (c) a third composition having an organic metallic compound.Type: GrantFiled: April 28, 2006Date of Patent: April 20, 2010Assignee: TSRC CorporationInventors: Fu Lin, Chih-Kuang Tsai, Shun-An Liu, Jing-Cherng Tsai
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Publication number: 20070254802Abstract: A catalyst composition and a method for hydrogenating a polymer having a conjugated diene are provided. The method includes a step of hydrogenation of dissolving the polymer in one of an inert organic solvent and an inert organic solvent which includes a portion of ether and amine polar compound to be reacted with a hydrogen in a presence of a hydrogenation catalyst composition so as to selectively hydrogenate an unsaturated double bond in the polymer.Type: ApplicationFiled: April 28, 2006Publication date: November 1, 2007Applicant: TSRC CorporationInventors: Fu Lin, Chih-Kuang Tsai, Shun-An Liu, Jing-Cherng Tsai
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Patent number: 7186782Abstract: A process for hydrogenation of an unsaturated polymer. The conjugated diene polymer in an inert organic solvent is brought into contact with hydrogen in the presence of a hydrogenation catalyst composition to selectively hydrogenate the unsaturated double bonds in the conjugated diene units of the conjugated diene polymer. The hydrogenation catalyst composition includes: (a) a titanium compound; (b) a compound represented by formula (II) or formula (III): wherein L1 is a Group IVA element, L2 is a Group IVA element, R3 is C1–C12 alkyl or C1–C12 cycloalkyl, R4 is C2–C12 alkyl or C3–C12 cycloalkyl, and X1, X2, and X3 can be the same or different and are C1–C12 alkyl, C1–C12 alkoxy, C1–C12 cycloalkoxy, phenyl, or phenoxy; and (c) a trialkylaluminum compound.Type: GrantFiled: March 23, 2005Date of Patent: March 6, 2007Assignee: TSRC CorporationInventors: Fu Lin, Jing-Cherng Tsai, Chih-Kuang Tsai, Shun-An Liu
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Publication number: 20060041079Abstract: A process for hydrogenation of an unsaturated polymer. The conjugated diene polymer in an inert organic solvent is brought into contact with hydrogen in the presence of a hydrogenation catalyst composition to selectively hydrogenate the unsaturated double bonds in the conjugated diene units of the conjugated diene polymer. The hydrogenation catalyst composition includes: (a) a titanium compound; (b) a compound represented by formula (II) or formula (III): wherein L1 is a Group IVA element, L2 is a Group IVA element, R3 is C1-C12 alkyl or C1-C12 cycloalkyl, R4 is C2-C12 alkyl or C3-C12 cycloalkyl, and X1, X2, and X3 can be the same or different and are C1-C12 alkyl, C1-C12 alkoxy, C1-C12 cycloalkoxy, phenyl, or phenoxy; and (c) a trialkylaluminum compound.Type: ApplicationFiled: March 23, 2005Publication date: February 23, 2006Inventors: Fu Lin, Jing-Cherng Tsai, Chih-Kuang Tsai, Shun-An Liu
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Patent number: 6930157Abstract: A catalyst composition for preparing olefin polymers. The catalyst composition includes a metallocene compound and an activating cocatalyst. In the metallocene compound, two cyclopentadienyl groups are bridged by X (carbon, silicon, germanium or tin) in a ring structure. The bite angle ? formed by the two cyclopentadienyl rings and X is equal to or greater than 100 degrees. The obtained olefin polymer has high cycloolefin conversion and a high glass transition temperature. In addition, the catalyst composition can still maintain relatively high activity at high temperature reaction conditions.Type: GrantFiled: June 12, 2003Date of Patent: August 16, 2005Assignee: Industrial Technology Research InstituteInventors: Jing-Cherng Tsai, Ming-Yuan Wu, Tung-Ying Hsieh, Yuh-Yuan Wei, Chao-Ying Yu
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Patent number: 6875719Abstract: A catalyst composition for preparing olefin polymers. The catalyst composition includes a metallocene compound and an activating cocatalyst. In the metallocene compound, two cyclopentadienyl groups are bridged by X (carbon) in a ring structure and the bridge X forms a three-, four-, or five-member ring structure. The bite angle ? formed by the two cyclopentadienyl rings and X is equal to or greater than 100 degrees. The obtained olefin polymer has high cycloolefin conversion and a high glass transition temperature. In addition, the catalyst composition can still maintain relatively high activity at high temperature reaction conditions. The metallocene compound is represented by formula (I) below.Type: GrantFiled: September 17, 2002Date of Patent: April 5, 2005Assignee: Industrial Technology Research InstituteInventors: Jing-Cherng Tsai, Ming-Yuan Wu, Tung-Ying Hsieh, Yuh-Yuan Wei, Chao-Ying Yu
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Publication number: 20040132908Abstract: A graft copolymer of a syndiotactic styrene contains polar functional grafting arms. Due to the presence of polar grafting arms, the compatibility of the graft copolymer is substantially improved over the original syndiotactic styrene. Moreover, the graft copolymer can serve as a compatibilizer for a polymer blend so as to improve the compatibility of the polymer blend with other polymers, and increase the impact resistance and elongation of the polymer blend, while the physical properties of the original polymers in the polymer blend can still be maintained.Type: ApplicationFiled: January 7, 2003Publication date: July 8, 2004Inventors: Raymond Chien-Chao Tsiang, Jing-Cherng Tsai, Mu-Ya Chi
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Publication number: 20030216249Abstract: A catalyst composition for preparing olefin polymers. The catalyst composition includes a metallocene compound and an activating cocatalyst. In the metallocene compound, two cyclopentadienyl groups are bridged by X (carbon, silicon, germanium or tin) in a ring structure. The bite angle &thgr; formed by the two cyclopentadienyl rings and X is equal to or greater than 100 degrees. The obtained olefin polymer has high cycloolefin conversion and a high glass transition temperature. In addition, the catalyst composition can still maintain relatively high activity at high temperature reaction conditions.Type: ApplicationFiled: June 12, 2003Publication date: November 20, 2003Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Jing-Cherng Tsai, Ming-Yuan Wu, Tung-Ying Hsieh, Yuh-Yuan Wei, Chao-Ying Yu
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Publication number: 20030212221Abstract: A catalyst composition for preparing olefin polymers. The catalyst composition includes a metallocene compound and an activating cocatalyst. In the metallocene compound, two cyclopentadienyl groups are bridged by X (carbon, silicon, germanium or tin) in a ring structure. The bite angle 0 formed by the two cyclopentadienyl rings and X is equal to or greater than 100 degrees. The obtained olefin polymer has high cycloolefin conversion and a high glass transition temperature. In addition, the catalyst composition can still maintain relatively high activity at high temperature reaction conditions.Type: ApplicationFiled: June 12, 2003Publication date: November 13, 2003Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Jing-Cherng Tsai, Ming-Yuan Wu, Tung-Ying Hsieh, Yuh-Yuan Wei, Chao-Ying Yu
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Publication number: 20030139284Abstract: A catalyst composition for preparing olefin polymers. The catalyst composition includes a metallocene compound and an activating cocatalyst. In the metallocene compound, two cyclopentadienyl groups are bridged by X (carbon, silicon, germanium or tin) in a ring structure. The bite angle &thgr; formed by the two cyclopentadienyl rings and X is equal to or greater than 100 degrees. The obtained olefin polymer has high cycloolefin conversion and a high glass transition temperature. In addition, the catalyst composition can still maintain relatively high activity at high temperature reaction conditions.Type: ApplicationFiled: September 17, 2002Publication date: July 24, 2003Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Jing-Cherng Tsai, Ming-Yuan Wu, Tung-Ying Hsieh, Yuh-Yuan Wei, Chao-Ying Yu
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Publication number: 20020147104Abstract: A catalyst composition for preparing olefin polymers. The catalyst composition includes a metallocene compound and an activating cocatalyst. In the metallocene compound, two cyclopentadienyl groups are bridged by X (carbon, silicon, germanium or tin) in a ring structure. The bite angle &thgr; formed by the two cyclopentadienyl rings and X is equal to or greater than 100 degrees. The obtained olefin polymer has high cycloolefin conversion and a high glass transition temperature. In addition, the catalyst composition can still maintain relatively high activity at high temperature reaction conditions.Type: ApplicationFiled: January 28, 2002Publication date: October 10, 2002Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Jing-Cherng Tsai, Ming-Yuan Wu, Tung-Ying Hsieh, Yuh-Yuan Wei
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Patent number: 6437051Abstract: The present invention provides a graft copolymer of a syndiotactic styrene/para-alkylstyrene copolymer, having the formula of wherein R1 and R2 are independently selected from the group consisting of hydrogen, alkyl, and primary and secondary haloalkyl; X is a functional group selected from a group containing halogen, oxygen, sulfur, silicon, nitrogen, carbon, phosphorus, and mixtures thereof; Y is an atactic polymer moiety; a ranges from 10 to 30000; b ranges from 0 to 30000; c ranges from 0 to 30000; and d ranges from 1 to 30000. The compatibility of the graft copolymer of syndiotactic styrene/para-alkylstyrene copolymer of the present invention with other polymers is improved over a syndiotactic styrene polymer. Also, the graft copolymer of the present invention can serve as a compatibilizer for a polymer blend.Type: GrantFiled: December 29, 2000Date of Patent: August 20, 2002Assignee: Industrial Technology Research InstituteInventors: Chi-Lan Li, Jing-Cherng Tsai, Joung-Yei Chen, Wee-Pin Chao, Bor-Ping Wang, In-Mau Chen, Huai-Mei Chou
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Publication number: 20020019494Abstract: The present invention provides a graft copolymer of a syndiotactic styrene/para-alkylstyrene copolymer, having the formula of 1Type: ApplicationFiled: December 29, 2000Publication date: February 14, 2002Inventors: Chi-Lan Li, Jing-Cherng Tsai, Joung-Yei Chen, Wee-Pin Chao, Bor-Ping Wang, In-Mau Chen, Huai-Mei Chou
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Patent number: 6313230Abstract: A process for hydrogenation of conjugated diene polymers comprises hydrogenating said polymer in the presence of hydrogen and a hydrogenation catalyst composition comprising: (a) at least one titanium compound represented by the following formula (a): wherein R1 and R2, which may be the same or different, represent a halogen atom, an alkyl group, an aryl group, an arakyl group, a cycloalkyl group, an aryloxy group, an alkoxy group or a carbonyl group, and Cp* represents a cyclopentadienyl group or a derivative having the formula of C5R5, and R5, which may be the same or different, represents a hydrogen atom, an alkyl group an aralkyl group and an aryl group; and (b) at least one silyl hydride.Type: GrantFiled: September 21, 1999Date of Patent: November 6, 2001Assignees: Industrial Technology Research Institute, Chi Mei CorporationInventors: Jing-Cherng Tsai, Wen-Sheng Chang, Yu-Shan Chao, Chih-Nan Chu, Chen-Pao Huang, Hung-Yang Hsiao
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Patent number: 6288254Abstract: The present invention provides a novel bimetallic metallocene with a high catalytic activity for preparing olefin polymers having a narrow MWD.Type: GrantFiled: June 17, 1999Date of Patent: September 11, 2001Assignee: Industrial Technology Research InstituteInventors: Yi-Chun Chen, Kuang-Kai Liu, Jing-Cherng Tsai, Bor-Ping Wang, Hsiao-Fang Li, Shu-Hua Chan
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Patent number: 6228790Abstract: A novel dinuclear metallocene complex is disclosed, which is represented by the following formula (I): wherein M1 and M2 are the same or different and are independently selected from the group consisting of Group IIIB, Group IVB and Group VB transition metals; each X is the same or different and is indepedently an anionic ligand with −1 valence, which is selected from the group consisting H, C1-20 hydrocarbyl, halogen, C1-20 alkoxy, C1-20 aryloxy, NH2, NHR11, NR11R12, —(C═O)NH2, —(C═O)NHR13, and —(C═O)NR13R14, wherein R11, R12, R13 and R14 are C1-20 alkyl; i is an integer from 1 to 3; j is an integer from 1 to 3, R1, R2, R3, R4, R5, R6, R7, and R8 are the same or different and are independently H, a C1-20 linear, branched or cyclic hydrocarbyl group, or a C2-4 cyclic hydrocarbylene group which forms a C4-6 fused ring system; Y1 and Y2 are the same or different and each is an electron-donating group independently selected from a Group 15 or Group 16 elemType: GrantFiled: June 29, 1998Date of Patent: May 8, 2001Assignees: Industrial Technology Research Institute, Chinese Petroleum Corp., Taiwan Synthetic Rubber CorporationInventors: Ching Ting, Sung-Song Hua, Jing-Cherng Tsai, Bor-Ping Wang
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Patent number: 6211106Abstract: A catalyst composition for preparing high-syndiotacticity polystyrene polymers which comprises: (a) a titanium complex represented by the following formula of TiR′1R′2R′3R′4 or TiR′1R′2R′3, wherein R′1, R′2, R′3, and R′4 are, independently, an alkyl group, an aryl group, an alkoxy group, an aryloxy group, an amino group, a hydrogen atom, or a halogen atom; (b) a cyclopentadienyl complex represented by the following formula: wherein R1-R13 are, independently, alkyl group, aryl group, silyl group, halogen atom, or hydrogen atom; Ra and Rb are, independently, alkyl group, aryl group, alkoxy, aryloxy group, cyclopentadienyl group, hydrogen atom, or halogen atom; and Xa is a Group IIA element and Xb is a Group IIIA element.Type: GrantFiled: June 18, 1998Date of Patent: April 3, 2001Assignee: Industrial Technology Research InstituteInventors: Jing-Cherng Tsai, Yi-Chun Chen, Sheng Te Yang, Meei-Hwa Wang, Shian-Jy Wang