Patents by Inventor Yasutoyo Kawashima
Yasutoyo Kawashima 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: 11773266Abstract: Provided is a polymer having a sharp melting peak and allowing easy adjustment of the melting peak temperature. Specifically provided is a polymer having two or more kinds of constitutional units containing an alkyl group having 14 or more and 30 or less carbon atoms, wherein the proportions of the number of the two or more kinds of constitutional units containing an alkyl group having 14 or more and 30 or less carbon atoms are each 20% or more, with respect to 100% of the total number of all constitutional units containing an alkyl group having 14 or more and 30 or less carbon atoms. An enthalpy of fusion of the polymer observed within a temperature range of 10° C. or higher and lower than 60° C. in differential scanning calorimetry is 30 J/g or more.Type: GrantFiled: April 20, 2021Date of Patent: October 3, 2023Assignee: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Koji Ishiwata, Yasutoyo Kawashima, Yoshinobu Nozue
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Publication number: 20210269645Abstract: Provided is a polymer having a sharp melting peak and allowing easy adjustment of the melting peak temperature. Specifically provided is a polymer having two or more kinds of constitutional units containing an alkyl group having 14 or more and 30 or less carbon atoms, wherein the proportions of the number of the two or more kinds of constitutional units containing an alkyl group having 14 or more and 30 or less carbon atoms are each 20% or more, with respect to 100% of the total number of all constitutional units containing an alkyl group having 14 or more and 30 or less carbon atoms. An enthalpy of fusion of the polymer observed within a temperature range of 10° C. or higher and lower than 60° C. in differential scanning calorimetry is 30 J/g or more.Type: ApplicationFiled: April 20, 2021Publication date: September 2, 2021Inventors: Koji ISHIWATA, Yasutoyo KAWASHIMA, Yoshinobu NOZUE
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Patent number: 11098229Abstract: A resin composition contains a polymer whose enthalpy of fusion (?H) observed within a temperature range of 10° C. or higher and lower than 60° C. in differential scanning calorimetry is 30 J/g or more; and a low-molecular-weight compound whose enthalpy of fusion (?H) observed within a temperature range of 0° C. or higher and lower than 100° C. in differential scanning calorimetry is 30 J/g or more and whose molecular weight is 2000 or lower. A content of the low-molecular-weight compound is 3 parts by weight to 1000 parts by weight with respect to 100 parts by weight of the total amount of polymer components contained in the resin composition except the low-molecular-weight compound.Type: GrantFiled: July 27, 2017Date of Patent: August 24, 2021Assignee: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Kohei Ueda, Koji Ishiwata, Yasutoyo Kawashima
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Patent number: 11015060Abstract: Provided is a polymer having a sharp melting peak and allowing easy adjustment of the melting peak temperature. Specifically provided is a polymer having two or more kinds of constitutional units containing an alkyl group having 14 or more and 30 or less carbon atoms, wherein the proportions of the number of the two or more kinds of constitutional units containing an alkyl group having 14 or more and 30 or less carbon atoms are each 20% or more, with respect to 100% of the total number of all constitutional units containing an alkyl group having 14 or more and 30 or less carbon atoms. An enthalpy of fusion of the polymer observed within a temperature range of 10° C. or higher and lower than 60° C. in differential scanning calorimetry is 30 J/g or more.Type: GrantFiled: June 13, 2017Date of Patent: May 25, 2021Assignee: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Koji Ishiwata, Yasutoyo Kawashima, Yoshinobu Nozue
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Patent number: 10717792Abstract: A polymer that is capable of affording a heat storage material superior in humidity permeability and shape retention after phase transition and that is superior in molding processability is provided. The polymer includes constitutional units (A) derived from ethylene, constitutional units (B) represented by a specified formula, and optionally includes constitutional units (C) represented by another specified formula. Where the total number of the units (A), the units (B), and the units (C) is 100%, the number of the units (A) accounts for 70% to 99%, the total number of the units (B) and the units (C) accounts for 1% by weight to 30% by weight. Where the total number of the units (B) and the units (C) is 100%, the number of the units (B) accounts for 1% to 100% and the number of the units (C) accounts for 0% to 99%.Type: GrantFiled: June 14, 2019Date of Patent: July 21, 2020Assignee: Sumitomo Chemical Company, LimitedInventors: Yu Miura, Yasutoyo Kawashima, Kohei Ueda, Yoshinobu Nozue
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Publication number: 20190309109Abstract: A polymer that is capable of affording a heat storage material superior in humidity permeability and shape retention after phase transition and that is superior in molding processability is provided. The polymer includes constitutional units (A) derived from ethylene, constitutional units (B) represented by a specified formula, and optionally includes constitutional units (C) represented by another specified formula. Where the total number of the units (A), the units (B), and the units (C) is 100%, the number of the units (A) accounts for 70% to 99%, the total number of the units (B) and the units (C) accounts for 1% by weight to 30% by weight. Where the total number of the units (B) and the units (C) is 100%, the number of the units (B) accounts for 1% to 100% and the number of the units (C) accounts for 0% to 99%.Type: ApplicationFiled: June 14, 2019Publication date: October 10, 2019Inventors: Yu MIURA, Yasutoyo KAWASHIMA, Kohei UEDA, Yoshinobu NOZUE
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Publication number: 20190270923Abstract: A resin composition contains a polymer whose enthalpy of fusion (?H) observed within a temperature range of 10° C. or higher and lower than 60° C. in differential scanning calorimetry is 30 J/g or more; and a low-molecular-weight compound whose enthalpy of fusion (?H) observed within a temperature range of 0° C. or higher and lower than 100° C. in differential scanning calorimetry is 30 J/g or more and whose molecular weight is 2000 or lower. A content of the low-molecular-weight compound is 3 parts by weight to 1000 parts by weight with respect to 100 parts by weight of the total amount of polymer components contained in the resin composition except the low-molecular-weight compound.Type: ApplicationFiled: July 27, 2017Publication date: September 5, 2019Inventors: Kohei UEDA, Koji ISHIWATA, Yasutoyo KAWASHIMA
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Patent number: 10370467Abstract: A polymer that is capable of affording a heat storage material superior in humidity permeability and shape retention after phase transition and that is superior in molding processability is provided. The polymer includes constitutional units (A) derived from ethylene, constitutional units (B) represented by a specified formula, and optionally includes constitutional units (C) represented by another specified formula. Where the total number of the units (A), the units (B), and the units (C) is 100%, the number of the units (A) accounts for 70% to 99%, the total number of the units (B) and the units (C) accounts for 1% by weight to 30% by weight. Where the total number of the units (B) and the units (C) is 100%, the number of the units (B) accounts for 1% to 100% and the number of the units (C) accounts for 0% to 99%.Type: GrantFiled: December 10, 2015Date of Patent: August 6, 2019Assignee: Sumitomo Chemical Company, LimitedInventors: Yu Miura, Yasutoyo Kawashima, Kohei Ueda, Yoshinobu Nozue
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Publication number: 20190144676Abstract: Provided is a polymer having a sharp melting peak and allowing easy adjustment of the melting peak temperature. Specifically provided is a polymer having two or more kinds of constitutional units containing an alkyl group having 14 or more and 30 or less carbon atoms, wherein the proportions of the number of the two or more kinds of constitutional units containing an alkyl group having 14 or more and 30 or less carbon atoms are each 20% or more, with respect to 100% of the total number of all constitutional units containing an alkyl group having 14 or more and 30 or less carbon atoms. An enthalpy of fusion of the polymer observed within a temperature range of 10° C. or higher and lower than 60° C. in differential scanning calorimetry is 30 J/g or more.Type: ApplicationFiled: June 13, 2017Publication date: May 16, 2019Inventors: Koji ISHIWATA, Yasutoyo KAWASHIMA, Yoshinobu NOZUE
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Patent number: 9919300Abstract: Disclosed is transition metal complex that serves as a catalytic component with which 1-hexene can be produced efficiently with excellent selectivity, even under high temperature conditions, by means of an ethylene trimerization reaction. Said transition metal complex is represented by the following general formula (1), wherein M1 represents a Group 4 transition metal atom, and R1 through R11 and X1 through X3 each independently represent a hydrogen atom, a halogen atom, or a specific organic group.Type: GrantFiled: October 21, 2016Date of Patent: March 20, 2018Assignee: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Yasutoyo Kawashima, Takahiro Hino, Taichi Senda, Masaya Tanimoto
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Patent number: 9909002Abstract: There are provided a resin composition capable of affording a cross-linked foam excellent in heat storage performance, a cross-linked product of the resin composition, and a method for producing the cross-linked product. Specifically, there is provided a resin composition containing an olefin polymer comprising a main chain containing monomer units derived from ethylene and branch chains having 5 or more carbon atoms, the number of the branch chains being within the range of 20 chains to 40 chains per 1000 carbon atoms constituting the olefin polymer, and having a melting peak temperature measured with DSC of within the range of 10° C. to 50° C., a crystallization peak temperature measured with DSC of within the range of 0° C. to 40° C., and a melt enthalpy measured with DSC of 50 J/g or more, and an olefin polymer having a melting peak temperature measured with DSC of within the range of 50° C. to 180° C.Type: GrantFiled: April 8, 2015Date of Patent: March 6, 2018Assignee: Sumitomo Chemical Company, LimitedInventors: Yasutoyo Kawashima, Yoshinobu Nozue
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Publication number: 20180030175Abstract: A polymer that is capable of affording a heat storage material superior in humidity permeability and shape retention after phase transition and that is superior in molding processability is provided. The polymer includes constitutional units (A) derived from ethylene, constitutional units (B) represented by a specified formula, and optionally includes constitutional units (C) represented by another specified formula. Where the total number of the units (A), the units (B), and the units (C) is 100%, the number of the units (A) accounts for 70% to 99%, the total number of the units (B) and the units (C) accounts for 1% by weight to 30% by weight. Where the total number of the units (B) and the units (C) is 100%, the number of the units (B) accounts for 1% to 100% and the number of the units (C) accounts for 0% to 99%.Type: ApplicationFiled: December 10, 2015Publication date: February 1, 2018Inventors: Yu MIURA, Yasutoyo KAWASHIMA, Kohei UEDA, Yoshinobu NOZUE
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Publication number: 20170121516Abstract: There are provided a resin composition capable of affording a cross-linked foam excellent in heat storage performance, a cross-linked product of the resin composition, and a method for producing the cross-linked product. Specifically, there is provided a resin composition containing an olefin polymer comprising a main chain containing monomer units derived from ethylene and branch chains having 5 or more carbon atoms, the number of the branch chains being within the range of 20 chains to 40 chains per 1000 carbon atoms constituting the olefin polymer, and having a melting peak temperature measured with DSC of within the range of 10° C. to 50° C., a crystallization peak temperature measured with DSC of within the range of 0° C. to 40° C., and a melt enthalpy measured with DSC of 50 J/g or more, and an olefin polymer having a melting peak temperature measured with DSC of within the range of 50° C. to 180° C.Type: ApplicationFiled: April 8, 2015Publication date: May 4, 2017Applicant: Sumitomo Chemical Company, LimitedInventors: Yasutoyo KAWASHIMA, Yoshinobu NOZUE
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Publication number: 20170036200Abstract: Disclosed is transition metal complex that serves as a catalytic component with which 1-hexene can be produced efficiently with excellent selectivity, even under high temperature conditions, by means of an ethylene trimerization reaction. Said transition metal complex is represented by the following general formula (1), wherein M1 represents a Group 4 transition metal atom, and R1 through R11 and X1 through X3 each independently represent a hydrogen atom, a halogen atom, or a specific organic group.Type: ApplicationFiled: October 21, 2016Publication date: February 9, 2017Inventors: Yasutoyo KAWASHIMA, Takahiro HINO, Taichi SENDA, Masaya TANIMOTO
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Publication number: 20150105237Abstract: Disclosed is a catalytic component for trimerization containing a transition metal complex with which 1-hexene can be produced efficiently with excellent selectivity, even under high temperature conditions, by means of an ethylene trimerization reaction. Also disclosed is a trimerization catalyst that is obtained by bringing an olefin copolymerization catalyst and an activating co-catalytic component into contact with one another. Said transition metal complex is represented by the following general formula (1), wherein M1 represents a Group 4 transition metal atom, and R1 through R11 and X1 through X3 each independently represent a hydrogen atom, a halogen atom, or a specific organic group.Type: ApplicationFiled: December 18, 2014Publication date: April 16, 2015Inventors: Yasutoyo KAWASHIMA, Takahiro HINO, Taichi SENDA, Masaya TANIMOTO
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Publication number: 20150105572Abstract: Disclosed is transition metal complex that serves as a catalytic component with which 1-hexene can be produced efficiently with excellent selectivity, even under high temperature conditions, by means of an ethylene trimerization reaction. Said transition metal complex is represented by the following general formula (1), wherein M1 represents a Group 4 transition metal atom, and R1 through R11 and X1 through X3 each independently represent a hydrogen atom, a halogen atom, or a specific organic group.Type: ApplicationFiled: December 18, 2014Publication date: April 16, 2015Inventors: Yasutoyo KAWASHIMA, Takahiro HINO, Taichi SENDA, Masaya TANIMOTO
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Patent number: 8871885Abstract: An ethylene-?-olefin copolymer wherein the copolymer has a monomer unit based on ethylene and a monomer unit based on an ?-olefin having 3 to 20 carbon atoms, the density (d) is 860 to 950 kg/m3, the melt flow rate (MFR) is 1 to 100 g/10 min, the ratio (Mw/Mn) of the weight average molecular weight (Mw) to the number average molecular weight (Mn) is 4 to 30, the ratio (Mz/Mw) of the Z average molecular weight (Mz) to the weight average molecular weight (Mw) is 2 to 5, the swell ratio (SR) is 1.8 or more, and the characteristic relaxation time (?) obtained by linear viscoelasticity measurement is 0.01 to 10 seconds.Type: GrantFiled: November 27, 2008Date of Patent: October 28, 2014Assignee: Sumitomo Chemical Company, LimitedInventors: Yoshinobu Nozue, Naoko Ochi, Yasutoyo Kawashima
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Patent number: 8501891Abstract: An ethylene-?-olefin copolymer wherein the copolymer has a monomer unit based on ethylene and a monomer unit based on an ?-olefin having 3 to 20 carbon atoms, the density (d) is 860 to 950 kg/m3, the melt flow rate (MFR) is 1 to 100 g/10 min, the flow activation energy (Ea) is 60 kJ/mol or more, the ratio (Mw/Mn) of the weight average molecular weight (Mw) to the number average molecular weight (Mn) is 5.5 to 30, the ratio (Mz/Mw) of the Z average molecular weight (Mz) to the weight average molecular weight (Mw) is 2 to 5, and the swell ratio (SR) is 1.55 or more and less than 1.8.Type: GrantFiled: November 27, 2008Date of Patent: August 6, 2013Assignee: Sumitomo Chemical Company, LimitedInventors: Yoshinobu Nozue, Yasutoyo Kawashima, Naoko Ochi
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Patent number: 8470947Abstract: Disclosed is an ethylenic polymer having a long characteristic relaxation time. The ethylenic polymer satisfies the following requirements: (a) the ethylenic polymer is a non-crosslinked ethylenic polymer; (b) the number of long-chain branches (LCB) per 1000 carbon atoms is 0.1-1.5 inclusive; (c) the intrinsic viscosity [?] is 1.0-3.0 dl/g inclusive; and (d) the ratio (G?/G?) of the storage modulus (G?) to the loss modulus (G?), determined by dynamic viscoelasticity measurement at 190° C. and at an angular frequency of 0.1 rad/sec is 0.8 or more and 4.0 or less.Type: GrantFiled: September 30, 2010Date of Patent: June 25, 2013Assignee: Sumitomo Chemical Company, LimitedInventors: Yasutoyo Kawashima, Takahiro Hino, Taichi Senda
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Patent number: 8436101Abstract: The purpose of the invention is to provide an ethylene-?-olefin copolymer, which has a high melt tension but a small neck-in, and a molded object produced by extrusion molding of the copolymer. An ethylene-?-olefin copolymer having a monomer unit based on ethylene and a monomer unit based on an ?-olefin having 3 to 20 carbon atoms, which has a melt flow rate (MFR) of 0.1 to 100 g/10 min, a density (d) of 850 to 940 kg/m3, a ratio (Mw/Mn) of weight average molecular weight (Mw) to number average molecular weight (Mn) of 2 to 12, and a value g* defined by the following formula (I) of 0.50 to 0.75: g*=[?]/([?]GPC×gSCB*)??(I).Type: GrantFiled: November 10, 2009Date of Patent: May 7, 2013Assignee: Sumitomo Chemical Company, LimitedInventors: Yoshinobu Nozue, Yasutoyo Kawashima, Naoko Ochi, Takuya Ogane