Patents by Inventor Zhaomin Hou
Zhaomin Hou 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: 20230110760Abstract: The object of the invention is to provide a novel olefin-based molded product useful for various applications. An olefin-based molded product comprising a polymer including a structural unit of at least one polar olefin monomer represented by the general formula (I) CH2=CH—R2—Z(R1)n is provided. In the formula, Z is a hetero atom selected from the group consisting of nitrogen, oxygen, phosphorus, sulfur, and selenium; R1 is a substituted or unsubstituted hydrocarbyl group having 1 to 30 carbon atoms; n is an integer of 1 or 2 depending on the atomic species of Z; and R2 is a substituted or unsubstituted hydrocarbylene group having 2 to 20 carbon atoms.Type: ApplicationFiled: November 17, 2022Publication date: April 13, 2023Applicant: RIKENInventors: Haobing WANG, Yang YANG, Masayoshi NISHIURA, Zhaomin HOU
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Patent number: 11603417Abstract: An object of the present invention is to provide a novel method of producing a nonpolar olefin polymer (e.g., a copolymer of a nonpolar olefin and a polar olefin). The present invention provides a method of producing a polar olefin polymer or copolymer, the method including the polymerization step of polymerizing a polar olefin monomer using, as a catalyst, a polymerization catalyst composition containing: 1) a metallocene complex represented by Formula (I), which contains a central metal M that is scandium (Sc) or yttrium (Y), a ligand Cp* containing a cyclopentadienyl derivative and being bound to the central metal, monoanionic ligands Q1 and Q2, and W neutral Lewis bases L wherein W is an integer of 0 to 3; and 2) an ionic compound composed of a non-coordinating anion and a cation.Type: GrantFiled: March 14, 2018Date of Patent: March 14, 2023Assignee: RIKENInventors: Chunxiang Wang, Haobing Wang, Yang Yang, Masayoshi Nishiura, Zhaomin Hou
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Patent number: 11535688Abstract: The object of the invention is to provide a novel olefin-based molded product useful for various applications. An olefin-based molded product comprising a polymer including a structural unit of at least one polar olefin monomer represented by the general formula (I) CH2?CH—R2—Z(R1)n is provided. In the formula, Z is a hetero atom selected from the group consisting of nitrogen, oxygen, phosphorus, sulfur, and selenium; R1 is a substituted or unsubstituted hydrocarbyl group having 1 to 30 carbon atoms; n is an integer of 1 or 2 depending on the atomic species of Z; and R2 is a substituted or unsubstituted hydrocarbylene group having 2 to 20 carbon atoms.Type: GrantFiled: March 14, 2019Date of Patent: December 27, 2022Assignee: RIKENInventors: Haobing Wang, Yang Yang, Masayoshi Nishiura, Zhaomin Hou
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Publication number: 20210047447Abstract: The object of the invention is to provide a novel olefin-based molded product useful for various applications. An olefin-based molded product comprising a polymer including a structural unit of at least one polar olefin monomer represented by the general formula (I) CH2?CH—R2—Z(R1)n is provided. In the formula, Z is a hetero atom selected from the group consisting of nitrogen, oxygen, phosphorus, sulfur, and selenium; R1 is a substituted or unsubstituted hydrocarbyl group having 1 to 30 carbon atoms; n is an integer of 1 or 2 depending on the atomic species of Z; and R2 is a substituted or unsubstituted hydrocarbylene group having 2 to 20 carbon atoms.Type: ApplicationFiled: March 14, 2019Publication date: February 18, 2021Applicant: RIKENInventors: Haobing WANG, Yang YANG, Masayoshi NISHIURA, Zhaomin HOU
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Publication number: 20200010581Abstract: An object of the present invention is to provide a novel method of producing a nonpolar olefin polymer (e.g., a copolymer of a nonpolar olefin and a polar olefin). The present invention provides a method of producing a polar olefin polymer or copolymer, the method including the polymerization step of polymerizing a polar olefin monomer using, as a catalyst, a polymerization catalyst composition containing: 1) a metallocene complex represented by Formula (I), which contains a central metal M that is scandium (Sc) or yttrium (Y), a ligand Cp* containing a cyclopentadienyl derivative and being bound to the central metal, monoanionic ligands Q1 and Q2, and W neutral Lewis bases L wherein W is an integer of 0 to 3; and 2) an ionic compound composed of a non-coordinating anion and a cation.Type: ApplicationFiled: March 14, 2018Publication date: January 9, 2020Applicant: RIKENInventors: Chunxiang WANG, Haobing WANG, Yang YANG, Masayoshi NISHIURA, Zhaomin HOU
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Publication number: 20180294525Abstract: The present invention is a method for producing a compound (i), including the step of: reacting a compound (ii), a compound (iii), and carbon dioxide together in the presence of a copper catalyst and a lithium-based nucleophilic reagent, the compound (ii) being represented by formula (1): R3?C(R30)=X ??(1), the compound (iii) being represented by formula (2): (Z1)B?B(Z2) ??(2), and the compound (i) being represented by formula (3):Type: ApplicationFiled: April 6, 2018Publication date: October 11, 2018Inventors: Liang ZHANG, Masayoshi NISHIURA, Zhaomin HOU
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Patent number: 9890184Abstract: A novel complex capable of fixing dinitrogen and use thereof are provided. A complex represented by formula (1A) or (1B) or a cationic or anionic complex from the complex: wherein M1 to M4 (M1 to M3 in the case of formula (1A)) are each independently Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, or W, and L1 to L4 (L1 to L3 in the case of formula (1A)) are each independently a ligand selected from among a ligand (Cp) including a substituted or unsubstituted cyclopentadienyl derivative, a diphenylamine ligand, a diphenylphosphine ligand, and a carboimideamide ligand.Type: GrantFiled: November 20, 2013Date of Patent: February 13, 2018Assignee: RIKENInventors: Zhaomin Hou, Takanori Shima, Shaowei Hu, Yoshinori Endo
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Publication number: 20150291635Abstract: A novel complex capable of fixing dinitrogen and use thereof are provided. A complex represented by formula (1A) or (1B) or a cationic or anionic complex from the complex: wherein M1 to M4 (M1 to M3 in the case of formula (1A)) are each independently Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, or W, and L1 to L4 (L1 to L3 in the case of formula (1A)) are each independently a ligand selected from among a ligand (Cp) including a substituted or unsubstituted cyclopentadienyl derivative, a diphenylamine ligand, a diphenylphosphine ligand, and a carboimideamide ligand.Type: ApplicationFiled: November 20, 2013Publication date: October 15, 2015Inventors: Zhaomin Hou, Takanori Shima, Shaowei Hu, Yoshinori Endo
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Patent number: 8808878Abstract: A compound according to the present invention is represented by the general formula (1): as defined herein. This makes it possible to provide (i) a novel compound that exhibits a practically sufficient light-emitting property not only in a case where the novel compound is used as a luminescent dopant, but also in a case where the novel compound is used solely, and (ii) use of the novel compound.Type: GrantFiled: November 27, 2009Date of Patent: August 19, 2014Assignee: RIKENInventors: Zhaomin Hou, Yu Liu
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Publication number: 20140088276Abstract: A multidimensional polymer production method for producing a multidimensional polymer containing a repeating unit derived from a first monomer and a repeating unit derived from a second monomer, the multidimensional polymer production method including the steps of: (a) using a first catalyst and a second catalyst; and (b) carrying out a polymerization reaction in the presence of the first catalyst, the second catalyst, the first monomer, the second monomer, and a chain shuttling agent in an identical reaction system, the first catalyst selectively catalyzing a positionally selective or stereoselective polymerization reaction of the first monomer per se, and the second catalyst selectively catalyzing a positionally selective or stereoselective polymerization reaction of the second monomer per se.Type: ApplicationFiled: May 9, 2012Publication date: March 27, 2014Applicant: RIKENInventors: Zhaomin Hou, Li Pan
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Patent number: 8623976Abstract: The present invention provides a novel catalyst composition comprising a metallocene complex, and a novel producing method for various polymer compounds. Preferably, the invention provides a novel polymer compound, and a producing method thereof. Specifically, the invention provides a polymerization catalyst composition, comprising: (1) a metallocene complex represented by the general formula (I), including: a central metal M which is a group III metal atom or a lanthanoid metal atom; a ligand Cp* bound to the central metal and including a substituted or unsubstituted cyclopentadienyl derivative; monoanionic ligands Q1 and Q2; and w neutral Lewis base L; and (2) an ionic compound composed of a non-ligand anion and a cation: where w represents an integer of 0 to 3.Type: GrantFiled: July 6, 2012Date of Patent: January 7, 2014Assignee: RIKENInventors: Zhaomin Hou, Yunjie Luo, Xiaofang Li, Jens Baldamus
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Patent number: 8563457Abstract: 3,4-isoprene-based polymer having high isotacticity can be produced by polymerizing an isoprene compound using a complex represented by the general formula (A) and a catalyst activator: wherein R1 and R2 independently represent an alkyl group, a cyclohexyl group, an aryl group or an aralkyl group; R3 represents an alkyl group, an alkenyl group, an alkynyl group, an aryl group, an aralkyl group, an aliphatic, aromatic or cyclic amino group, a phosphino group, a boryl group, an alkylthio or arylthio group, or an alkoxy or aryloxy group; M represents a rare earth element selected from Sc, Y, and La to Lu with promethium (Pm) excluded; Q1 and Q2 independently represent a monoanionic ligand; L represents a neutral Lewis base.Type: GrantFiled: October 4, 2010Date of Patent: October 22, 2013Assignee: RikenInventors: Zhaomin Hou, Lixin Zhang
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Patent number: 8461270Abstract: The present invention relates to such a copolymer comprising an olefin and an aromatic vinyl compound that has a syndiotactic structure, high block property and a wide molecular weight distribution. Specifically, it relates to a copolymer comprising an olefin and an aromatic vinyl compound, in which a content of the aromatic vinyl compound is from 1 to 99% by mol; a molecular distribution is 1.Type: GrantFiled: May 29, 2008Date of Patent: June 11, 2013Assignees: Idemitsu Kosan Co., Ltd., RikenInventors: Nobuhide Ishihara, Zhaomin Hou
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Publication number: 20120277387Abstract: The present invention provides a novel catalyst composition comprising a metallocene complex, and a novel producing method for various polymer compounds. Preferably, the invention provides a novel polymer compound, and a producing method thereof. Specifically, the invention provides a polymerization catalyst composition, comprising: (1) a metallocene complex represented by the general formula (I), including: a central metal M which is a group III metal atom or a lanthanoid metal atom; a ligand Cp* bound to the central metal and including a substituted or unsubstituted cyclopentadienyl derivative; monoanionic ligands Q1 and Q2; and w neutral Lewis base L; and (2) an ionic compound composed of a non-ligand anion and a cation: where w represents an integer of 0 to 3.Type: ApplicationFiled: July 6, 2012Publication date: November 1, 2012Inventors: Zhaomin Hou, Yunjie Luo, Xiaofang Li, Jens Baldamus
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Publication number: 20120046158Abstract: The present invention provides a novel catalyst composition comprising a metallocene complex, and a novel producing method for various polymer compounds. Preferably, the invention provides a novel polymer compound, and a producing method thereof. Specifically, the invention provides a polymerization catalyst composition, comprising: (1) a metallocene complex represented by the general formula (I), including: a central metal M which is a group III metal atom or a lanthanoid metal atom; a ligand Cp* bound to the central metal and including a substituted or unsubstituted cyclopentadienyl derivative; monoanionic ligands Q1 and Q2; and w neutral Lewis base L; and (2) an ionic compound composed of a non-ligand anion and a cation: where w represents an integer of 0 to 3.Type: ApplicationFiled: June 23, 2011Publication date: February 23, 2012Inventors: Zhaomin Hou, Yunjie Luo, Xiaofang Li, Jens Baldamus
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Publication number: 20110234089Abstract: A compound according to the present invention is represented by the general formula (1). This makes it possible to provide (i) a novel compound that exhibits a practically sufficient light-emitting property not only in a case where the novel compound is used as a luminescent dopant, but also in a case where the novel compound is used solely, and (ii) use of the novel compound.Type: ApplicationFiled: November 27, 2009Publication date: September 29, 2011Inventors: Zhaomin Hou, Yu Liu
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Patent number: 7994267Abstract: The present invention provides a novel catalyst composition comprising a metallocene complex, and a novel producing method for various polymer compounds. Preferably, the invention provides a novel polymer compound, and a producing method thereof. Specifically, the invention provides a polymerization catalyst composition, comprising: (1) a metallocene complex represented by the general formula (I), including: a central metal M which is a group III metal atom or a lanthanoid metal atom; a ligand Cp* bound to the central metal and including a substituted or unsubstituted cyclopentadienyl derivative; monoanionic ligands Q1 and Q2; and w neutral Lewis base L; and (2) an ionic compound composed of a non-ligand anion and a cation: where w represents an integer of 0 to 3.Type: GrantFiled: July 1, 2005Date of Patent: August 9, 2011Assignee: RikenInventors: Zhaomin Hou, Yunjie Luo, Xiaofang Li, Jens Baldamus
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Publication number: 20110172366Abstract: The present invention relates to such a copolymer comprising an olefin and an aromatic vinyl compound that has a syndiotactic structure, high block property and a wide molecular weight distribution. Specifically, it relates to a copolymer comprising an olefin and an aromatic vinyl compound, in which a content of the aromatic vinyl compound is from 1 to 99% by mol; a molecular distribution is 1.Type: ApplicationFiled: May 29, 2008Publication date: July 14, 2011Applicant: IDEMITSU KOSAN CO., LTD.Inventors: Nobuhide Ishihara, Zhaomin Hou
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Patent number: 7956141Abstract: The present invention provides 1) a complex comprising a mono-anionictridentate ligand, represented by the following general formula (I); 2) a polymerization catalyst composition, comprising the complex; and 3) a cis-1,4-isoprene polymer, a cis-1,4-butadiene polymer, a cis-1,4-isoprene-styrene copolymer, a cis-1,4-butadiene-styrene copolymer, a cis-1,4-butadiene-cis-1,4-isoprene copolymer, and a cis-1,4-butadiene-cis-1,4-isoprene-styrene copolymer, each of which has high-cis-1,4 content in a micro structure and a sharp molecular-weight distribution.Type: GrantFiled: January 23, 2006Date of Patent: June 7, 2011Assignee: RikenInventors: Toshiaki Suzuki, Lixin Zhang, Zhaomin Hou
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Publication number: 20110098434Abstract: An isoprene-based polymer cyclized product obtained by cyclization of an isoprene-based polymer containing structural units expressed by the general formula (1) and having a ratio of content of the structural units to all repeating structural units of 60 mol % or more; an alicyclic polymer obtained by hydrogenation of 50% or more of the carbon-carbon double bonds of the isoprene-based polymer; and an optical resin comprising the isoprene-based polymer cyclized product and alicyclic polymer. (in the general formula (1), R1 indicates a C1 to C10 alkyl group).Type: ApplicationFiled: April 17, 2009Publication date: April 28, 2011Applicant: ZEON CORPORATIONInventors: Kei Nishii, Yasuo Tsunogae, Zhaomin Hou