Patents by Inventor Kuei-Lun Cheng
Kuei-Lun Cheng 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: 9475917Abstract: A rubber composition and a method for manufacturing the same are provided. The rubber composition includes a main chain modified conjugated diene based polymer and a stabilizer. A weight ratio of the main chain modified conjugated diene based polymer to the stabilizer is 100:0.2˜2.Type: GrantFiled: December 24, 2013Date of Patent: October 25, 2016Assignee: CHI MEI CORPORATIONInventors: Kuei-Lun Cheng, Kuan-Lin Hsieh, Chih-Cheng Lee
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Patent number: 9056526Abstract: Provided is a polymerization method of a modified copolymer of conjugated diene and vinyl aromatic hydrocarbon. A multi-functional vinyl benzene-based compound is reacted with an organic alkali metal compound to form a star shaped compound with multiple active sites. A conjugated diene monomer, a vinyl aromatic hydrocarbon monomer, and the star shaped compound with multiple active sites are reacted with each other to form a copolymer of conjugated diene and vinyl aromatic hydrocarbon. The copolymer of conjugated diene and vinyl aromatic hydrocarbon is then reacted with a modifier to form the modified copolymer of conjugated diene and vinyl aromatic hydrocarbon. The modifier is represented by formula 1, wherein R1 is a C2-C4 alkylene group; R2 is a group at least consisting of a C2-C4 alkylene group and a C1-C3 alkoxy group; m is an integer of 5 to 30; and n is an integer of 5 to 35.Type: GrantFiled: August 7, 2013Date of Patent: June 16, 2015Assignee: Chi Mei CorporationInventors: Kuan-Lin Hsieh, Kuei-Lun Cheng, Chih-Cheng Lee
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Patent number: 8907023Abstract: The present invention relates to a polysiloxane compound having a structure represented by formula 1: wherein each of F1, F2, F3 and F4 is individually selected from one of a first group, a second group, a third group and a fourth group, the first group is selected from a C2˜C10 hydrocarbon group having amino group(s), a C2˜C10 hydrocarbon group having epoxy group(s), a C2˜C10 hydrocarbon group having carbonyl group(s) or a C2˜C10 hydrocarbon group having alkoxy group(s), the second group is a C2˜C10 hydrocarbon group having amino group(s), the third group is selected from a C2˜C10 hydrocarbon group having epoxy group(s), a C2˜C10 hydrocarbon group having carbonyl group(s), a C2˜C10 hydrocarbon group having SiCl group(s) or a C2˜C10 hydrocarbon group having alkoxy group(s), the fourth group is selected from a C2˜C10 hydrocarbon group having aryl group(s) or a C2˜C10 hydrocarbon group having alkoxy group(s).Type: GrantFiled: August 7, 2013Date of Patent: December 9, 2014Assignee: Chi Mei CorporationInventors: Kuan-Lin Hsieh, Kuei-Lun Cheng, Chih-Cheng Lee
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Patent number: 8895665Abstract: Provided is a synthesis method of a modified conjugated diene polymer. Conjugated diene monomers are reacted in a reaction system. A modifier is added into the reaction system while the reaction proceeds to a predetermined extent. The modifier has a structure represented by formula (1): wherein R1-R11 each independently represent a C1-C5 alkyl group; 1?m?300; 0?a?65; 0?b?65; 0?c?40; 0<a+b; 0?c/(a+b+c)?0.8; the X and Y are structures respectively represented by formula (2) and formula (3): wherein R12, R16, and R17 each independently represent a C1-C5 alkylene group and R13-R15 each independently represent a C1-C5 alkyl group.Type: GrantFiled: June 25, 2013Date of Patent: November 25, 2014Assignee: Chi Mei CorporationInventors: Chih-Cheng Lee, Kuei-Lun Cheng, Chen-Pao Huang, Kuan-Lin Hsieh
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Patent number: 8871867Abstract: The invention discloses a terminal-modified conjugated diene-vinyl aromatic copolymer and a method for manufacturing the same. The method comprises the following steps. An organic alkali metal initiator is added into a first mixture containing a conjugated diene monomer and a vinyl aromatic hydrocarbon monomer to perform reaction to obtain a conjugated diene-vinyl aromatic copolymer with active terminal. The conjugated diene-vinyl aromatic copolymer with active terminal reacts with polysiloxane to obtain a terminal-modified conjugated diene-vinyl aromatic copolymer. The aforementioned polysiloxane is expressed as chemical formula (I): R1, R2, R3 and R5 independently are alkyl group with 1˜20 carbon atoms. R4 is selected from one of alkyl group, alkoxy group or hydroxyl group with 1˜5 carbon atoms, m is an integer of 2˜50, and n is an integer of 0˜50.Type: GrantFiled: December 15, 2011Date of Patent: October 28, 2014Assignee: Chi Mei CorporationInventors: Kuei-Lun Cheng, Chen-Pao Huang
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Publication number: 20140187720Abstract: Provided is a polymerization method of a modified copolymer of conjugated diene and vinyl aromatic hydrocarbon. A multi-functional vinyl benzene-based compound is reacted with an organic alkali metal compound to form a star shaped compound with multiple active sites. A conjugated diene monomer, a vinyl aromatic hydrocarbon monomer, and the star shaped compound with multiple active sites are reacted with each other to form a copolymer of conjugated diene and vinyl aromatic hydrocarbon. The copolymer of conjugated diene and vinyl aromatic hydrocarbon is then reacted with a modifier to form the modified copolymer of conjugated diene and vinyl aromatic hydrocarbon. The modifier is represented by formula 1, wherein R1 is a C2-C4 alkylene group; R2 is a group at least consisting of a C2-C4 alkylene group and a C1-C3 alkoxy group; m is an integer of 5 to 30; and n is an integer of 5 to 35.Type: ApplicationFiled: August 7, 2013Publication date: July 3, 2014Applicant: Chi Mei CorporationInventors: Kuan-Lin Hsieh, Kuei-Lun Cheng, Chih-Cheng Lee
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Publication number: 20140187723Abstract: The present invention relates to a polysiloxane compound having a structure represented by formula 1: wherein each of F1, F2, F3 and F4 is individually selected from one of a first group, a second group, a third group and a fourth group, the first group is selected from a C2˜C10 hydrocarbon group having amino group(s), a C2˜C10 hydrocarbon group having epoxy group(s), a C2˜C10 hydrocarbon group having carbonyl group(s) or a C2˜C10 hydrocarbon group having alkoxy group(s), the second group is a C2˜C10 hydrocarbon group having amino group(s), the third group is selected from a C2˜C10 hydrocarbon group having epoxy group(s), a C2˜C10 hydrocarbon group having carbonyl group(s), a C2˜C10 hydrocarbon group having SiCl group(s) or a C2˜C10 hydrocarbon group having alkoxy group(s), the fourth group is selected from a C2˜C10 hydrocarbon group having aryl group(s) or a C2˜C10 hydrocarbon group having alkoxy group(s).Type: ApplicationFiled: August 7, 2013Publication date: July 3, 2014Applicant: Chi Mei CorporationInventors: Kuan-Lin Hsieh, Kuei-Lun Cheng, Chih-Cheng Lee
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Publication number: 20140187696Abstract: A rubber composition and a method for manufacturing the same are provided. The rubber composition includes a main chain modified conjugated diene based polymer and a stabilizer. A weight ratio of the main chain modified conjugated diene based polymer to the stabilizer is 100:0.2˜2.Type: ApplicationFiled: December 24, 2013Publication date: July 3, 2014Applicant: Chi Mei CorporationInventors: Kuei-Lun Cheng, Kuan-Lin Hsieh, Chih-Cheng Lee
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Publication number: 20140179860Abstract: Provided is a synthesis method of a modified conjugated diene polymer. Conjugated diene monomers are reacted in a reaction system. A modifier is added into the reaction system while the reaction proceeds to a predetermined extent. The modifier has a structure represented by formula (1): wherein R1-R11 each independently represent a C1-C5 alkyl group; 1?m?300; 0?a?65; 0?b?65; 0?c?40; 0<a+b; 0?c/(a+b+c)?0.8; the X and Y are structures respectively represented by formula (2) and formula (3): wherein R12, R16, and R17 each independently represent a C1-C5 alkylene group and R13-R15 each independently represent a C1-C5 alkyl group.Type: ApplicationFiled: June 25, 2013Publication date: June 26, 2014Inventors: Chih-Cheng Lee, Kuei-Lun Cheng, Chen-Pao Huang, Kuan-Lin Hsieh
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Patent number: 8722810Abstract: A modified conjugated diene copolymer and a preparing method for the same are provided. The method comprising a polymerization step for polymerizing conjugated diene monomers to form a conjugated diene polymer; and a modifying step for reacting the conjugated diene polymer with a modifier to form a modified conjugated diene polymer. The modifier includes a polythiol ester compound, a polythiol alkane compound or a combination thereof, the polythiol ester compound has a chemical formula (I): Ra-(O—C(?O)Rb-SH)x??(I). The polythiol alkane compound has a chemical formula (II): HS—(CH2)m—(Rd)nCH2SH??(II).Type: GrantFiled: December 5, 2012Date of Patent: May 13, 2014Assignee: Chi Mei CorporationInventors: Kuei-Lun Cheng, Chih-Cheng Lee, Kuan-Lin Hsieh
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Patent number: 8674030Abstract: A modified conjugated diene polymer and a manufacturing method for the same are provided. The modified conjugated diene polymer is manufactured by the method including, forming a conjugated diene polymer by a polymerization step and making it react with a first modifier and then react with a second modifier. The modified conjugated diene polymer has over 97% of cis-1,4 structure. A PDI of the modified conjugated diene polymer is bigger than 1.8 and smaller than 2.5. The first modifier has a chemical formula of X—R1-Si(R2)3. The second modifier has a chemical formula of R3-Si(R4)3.Type: GrantFiled: November 6, 2012Date of Patent: March 18, 2014Assignee: Chi Mei CorporationInventors: Chih-Cheng Lee, Kuei-Lun Cheng
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Patent number: 8367775Abstract: A modified conjugated diene-vinyl aromatic copolymer and a method for manufacturing the same are provided. The modified conjugated diene-vinyl aromatic copolymer is formed by modifying a conjugated diene-vinyl aromatic copolymer by reacting with a first modifier in a solvent and then reacting with a second modifier. The solvent includes an organic alkali metal initiator.Type: GrantFiled: December 29, 2011Date of Patent: February 5, 2013Assignee: Chi Mei CorporationInventors: Kuei-Lun Cheng, Chen-Pao Huang
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Patent number: 8362152Abstract: A modified conjugated diene-vinyl aromatic copolymer and a method for manufacturing the same are provided. The modified conjugated diene-vinyl aromatic copolymer is formed by modifying a conjugated diene-vinyl aromatic copolymer by reacting with a first modifier in a solvent and then reacting with a second modifier. The solvent contains an organic alkali metal initiator. The first modifier is expressed as chemical formula (I): The second modifier is expressed as chemical formula (II): R1 is selected from one of hydrogen, methyl group or ethyl group. R2 is selected from hydrogen. R3 is selected from one of hydrogen, methyl group or ethyl group. X is selected from one of epoxypropoxy group, isocyanate group or 2-(3,4-epoxycyclohexyl) group. R4 is selected from one of alkyl groups with 2˜3 carbon atoms.Type: GrantFiled: December 29, 2011Date of Patent: January 29, 2013Assignee: Chi Mei CorporationInventors: Chen-Pao Huang, Kuei-Lun Cheng
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Publication number: 20120172527Abstract: A modified conjugated diene-vinyl aromatic copolymer and a method for manufacturing the same are provided. The modified conjugated diene-vinyl aromatic copolymer is formed by modifying a conjugated diene-vinyl aromatic copolymer by reacting with a first modifier in a solvent and then reacting with a second modifier. The solvent contains an organic alkali metal initiator. The first modifier is expressed as chemical formula (I): The second modifier is expressed as chemical formula (II): R1 is selected from one of hydrogen, methyl group or ethyl group. R2 is selected from hydrogen. R3 is selected from one of hydrogen, methyl group or ethyl group. X is selected from one of epoxypropoxy group, isocyanate group or 2-(3,4-epoxycyclohexyl) group. R4 is selected from one of alkyl groups with 2˜3 carbon atoms.Type: ApplicationFiled: December 29, 2011Publication date: July 5, 2012Applicant: CHI MEI CORPORATIONInventors: Chen-Pao Huang, Kuei-Lun Cheng
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Publication number: 20120172526Abstract: A modified conjugated diene-vinyl aromatic copolymer and a method for manufacturing the same are provided. The modified conjugated diene-vinyl aromatic copolymer is formed by modifying a conjugated diene-vinyl aromatic copolymer by reacting with a first modifier in a solvent and then reacting with a second modifier. The solvent includes an organic alkali metal initiator.Type: ApplicationFiled: December 29, 2011Publication date: July 5, 2012Applicant: CHI MEI CORPORATIONInventors: Kuei-Lun Cheng, Chen-Pao Huang
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Publication number: 20120172528Abstract: The invention discloses a terminal-modified conjugated diene-vinyl aromatic copolymer and a method for manufacturing the same. The method comprises the following steps. An organic alkali metal initiator is added into a first mixture containing a conjugated diene monomer and a vinyl aromatic hydrocarbon monomer to perform reaction to obtain a conjugated diene-vinyl aromatic copolymer with active terminal. The conjugated diene-vinyl aromatic copolymer with active terminal reacts with polysiloxane to obtain a terminal-modified conjugated diene-vinyl aromatic copolymer. The aforementioned polysiloxane is expressed as chemical formula (I): R1, R2, R3 and R5 independently are alkyl group with 1˜20 carbon atoms. R4 is selected from one of alkyl group, alkoxy group or hydroxyl group with 1˜5 carbon atoms, m is an integer of 2˜50, and n is an integer of 0˜50.Type: ApplicationFiled: December 15, 2011Publication date: July 5, 2012Applicant: Chi Mei CorporationInventors: Kuei-Lun Cheng, Chen-Pao Huang