Patents by Inventor Yoshinobu Nozue
Yoshinobu Nozue 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: 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: 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
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Patent number: 8426525Abstract: An ethylene based polymer composition comprising the following component (A) and the following component (B) wherein the content of the component (B) is 0.5 to 20 parts by weight per 100 parts by weight of the component (A): Component (A): an ethylene based polymer satisfying all of the following requirements (a1) to (a3): (a1) the density is 890 to 925 kg/m3, (a2) the melt flow rate (MFR) is 0.1 to 10 g/10 minutes, (a3) the flow activation energy (Ea) is 50 kJ/mol or more, Component (B): an ethylene-?-olefin copolymer satisfying all of the following requirements (b1) to (b3): (b1) the density is 890 to 925 kg/m3, (b2) the intrinsic viscosity [?] measured in a tetralin solution is 4 to 15 dL/g, (b3) the flow activation energy (Ea) is less than 50 kJ/mol.Type: GrantFiled: May 15, 2008Date of Patent: April 23, 2013Assignee: Sumitomo Chemical Company, LimitedInventors: Yoshinobu Nozue, Yasutoyo Kawashima
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Patent number: 8420741Abstract: An ethylene based polymer composition comprising the following component (A) and the following component (B) wherein the content of the component (B) is 0.1 to 20 parts by weight per 100 parts by weight of the component (A): Component (A): an ethylene-?-olefin copolymer satisfying all of the following requirements (a1) to (a3): (a1) the density is 890 to 925 kg/m3, (a2) the melt flow rate (MFR) is 0.1 to 10 g/10 minutes, (a3) the flow activation energy (Ea) is less than 50 kJ/mol, Component (B): an ethylene-?-olefin copolymer satisfying all of the following requirements (b1) to (b3): (b1) the density is 890 to 925 kg/m3, (b2) the intrinsic viscosity [?] measured in a tetralin solution is 4 to 15 dL/g, (b3) the flow activation energy (Ea) is less than 50 kJ/mol.Type: GrantFiled: May 15, 2008Date of Patent: April 16, 2013Assignee: Sumitomo Chemical Company, LimitedInventors: Yoshinobu Nozue, Yasutoyo Kawashima, Katsuhiro Yamada
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Publication number: 20130053465Abstract: The ethylene-?-olefin copolymer contains monomer units derived from ethylene and monomer units derived from an ?-olefin having 3 to 20 carbon atoms for producing a foam. The ethylene-?-olefin copolymer has a melt flow rate of 0.1 to 100 g/10 minutes, a density of 850 to 940 kg/m3, a molecular weight distribution of 2 to 12, a swell ratio of 1.61 or more, and a value of g* as defined by a formula (I) of 0.50 to 0.78.Type: ApplicationFiled: April 19, 2011Publication date: February 28, 2013Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Toshihiko Manami, Yoshinobu Nozue
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Publication number: 20130041119Abstract: A method for producing an olefin polymer, including: polymerizing olefin monomers using the following substance (A1), the following substance (A2), and an activating agent (B): the substance (A1): a complex represented by the following general formula (1-1) or (1-2) the substance (A2): a transition metal compound represented by the following general formula (8) or a ?-oxo-type dimer of a transition metal compound represented by the general formula (8)Type: ApplicationFiled: August 9, 2012Publication date: February 14, 2013Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Naoko OCHI, Yoshinobu NOZUE
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Publication number: 20130005930Abstract: An ethylene-?-olefin copolymer, wherein the ethylene-?-olefin copolymer has a density of 860 to 950 kg/m3 and a melt flow rate of 0.01 to 100 g/10 min, wherein in a molecular weight curve measured by gel permeation chromatography, the molecular weight of the copolymer providing the highest peak exists within the range of 10,000 to 20,000, wherein the height of the peak at a molecular weight of 177,000 is 5 to 30% where the height of the highest peak is 100%, wherein a characteristic relaxation time of the copolymer satisfies a relation represented by formula (1), and wherein the ethylene-?-olefin copolymer exhibits more than one melt peak observed by a differential scanning calorimeter. 40.2×MFR?0.606<?<71.8×MFR?0.Type: ApplicationFiled: March 10, 2011Publication date: January 3, 2013Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Yoshinobu Nozue, Naoko Ochi
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Patent number: 8344037Abstract: A resin composition for cross-linking foam molding having a polymer composition which comprises 100 parts by weight of the following component (A) and 0.5 to 20 parts by weight of the following component (B); a foaming agent; and a cross-linking agent, wherein the component (A) is an ethylene-based polymer satisfying the following conditions (a1) to (a2): (a1) the density is 860 to 935 kg/m3, and (a2) the melt flow rate (MFR) is 0.1 to 10 g/10 minutes, and the component (B) is an ethylene-?-olefin copolymer satisfying the following conditions (b1) to (b3): (b1) the density is 890 to 925 kg/m3, (b2) the intrinsic viscosity [?] determined in a tetralin solution is 4 to 15 dL/g, and (b3) the activation energy of flow (Ea) is less than 50 kJ/mol.Type: GrantFiled: August 27, 2009Date of Patent: January 1, 2013Assignee: Sumitomo Chemical Company, LimitedInventors: Katsuhiro Yamada, Yoshinobu Nozue
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Publication number: 20120316310Abstract: The present invention relates to an ethylene-?-olefin copolymer comprising monomer units derived from ethylene and monomer units derived from an ?-olefin having from 3 to 20 carbon atoms, wherein the copolymer has a melt flow rate of 0.01 to 100 g/10 min, a density of 860 to 970 kg/m3, a molecular weight distribution of 5.5 to 12, and an activation energy of flow of 50 to 100 kJ/mol, and when the maximum take-up rate of the copolymer at 150° C. is represented by MTV150 and the maximum take-up rate of the copolymer at 190° C. is represented by MTV190, MTV150 is 40 m/min or more, and the ratio of MTV150 to MTV190 is 1 or less.Type: ApplicationFiled: December 3, 2010Publication date: December 13, 2012Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Jumma Nomura, Kazuo Takaoki, Takeshi Hatakeyama, Yoshinobu Nozue, Yasutoyo Kawashima
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Patent number: 8299194Abstract: An ethylene-?-olefin copolymer comprising monomer units derived from ethylene and monomer units derived from an ?-olefin having 3 to 20 carbon atoms, having a density (d) of 860 to 950 kg/m3, having a melt flow rate (MFR) of 0.05 to 100 g/10 min, having a ratio (Mw/Mn) of the weight average molecular weight (Mw) thereof to the number average molecular weight (Mn) thereof of 2 to 10, having a swell ratio (SR) of less than 1.35, and having a g* of 0.50 to 0.75.Type: GrantFiled: May 27, 2010Date of Patent: October 30, 2012Assignee: Sumitomo Chemical Company, LimitedInventors: Yoshinobu Nozue, Naoko Ochi
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Patent number: 8263709Abstract: A polymer composition, including: a first copolymer, including a first monomer unit derived from a monomer of Formula A: (R1SiO1.5)x(R2SiO1.5)y??Formula A wherein R1 is a polymerizable functional group, R2 is a non-polymerizable group, x is a positive integer, and y is a positive integer, provided that x+y=2n, wherein n is an integer greater than or equal to 3; a second monomer unit copolymerizable with the first monomer unit; and a second polymer having no monomer units derived from a monomer of Formula A; wherein the content of the monomer unit of Formula A is 4 wt % or less, based on the total weight of the polymer components of the polymer composition.Type: GrantFiled: November 16, 2010Date of Patent: September 11, 2012Assignees: University of Massachusetts, Sumitomo Chemical Company, LimitedInventors: E. Bryan Coughlin, Yoshinobu Nozue, Shuichiro Seno
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Publication number: 20120225273Abstract: A polyethylene-based resin film is provided, wherein the film is formed of a resin composition comprising the following component (A), component (B) and component (C): component (A) is an aliphatic polyester; component (B) is an ethylene-a-olefin copolymer having an activation energy of flow (Ea) of from 45 to 100 kJ/mol; and component (C) is a compatibilizer for component (A) and component (B). When the total amount of component (A), component (B) and component (C) contained in the resin composition is 100% by weight, the content of component (A) is from 18 to 40% by weight, the content of component (B) is from 55 to 77% by weight, and the content of component (C) is from 3 to 15% by weight.Type: ApplicationFiled: November 12, 2010Publication date: September 6, 2012Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Jumma Nomura, Yoshinobu Nozue, Akiko Sekino
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Publication number: 20120219783Abstract: A polyethylene-based resin film is provided, wherein the film is formed of a resin composition containing the following component (A), component (B) and component (C): component (A) is an aliphatic polyester; component (B) is an ethylene-?-olefin copolymer having an activation energy of flow (Ea) of from 45 to 100 kJ/mol; and component (C) is a compatibilizer for the component (A) and the component (B).Type: ApplicationFiled: November 12, 2010Publication date: August 30, 2012Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Jumma Nomura, Yoshinobu Nozue, Akiko Sekino
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Publication number: 20120123006Abstract: Disclosed is a resin composition for crosslinking/foam molding which comprises a resin ingredient, a blowing agent, and a crosslinking agent, wherein the resin ingredient is an ethylene/?-olefin copolymer that comprises monomer units based on ethylene and monomer units based on an ?-olefin having 3 to 20 carbon atoms and satisfies all of the following: (1) to have a density of 860-950 kg/m3, (2) to have a melt flow rate (MFR) of 0.01-10 g/10 min, (3) to have a ratio of weight-average molecular weight (Mw) to number-average molecular weight (Mn), Mw/Mn, of 5.5-30, (4) to have a ratio of Z-average molecular weight (Mz) to weight-average molecular weight (Mw), Mz/Mw, of 2-4, and (5) to have a melt tension (MT) of 8 cN or higher.Type: ApplicationFiled: May 25, 2010Publication date: May 17, 2012Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Katsuhiro Yamada, Yoshinobu Nozue
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Publication number: 20120065352Abstract: An ethylene-?-olefin copolymer comprising monomer units derived from ethylene and monomer units derived from an ?-olefin having 3 to 20 carbon atoms, having a density (d) of 860 to 950 kg/m3, having a melt flow rate (MFR) of 0.05 to 100 g/10 min, having a ratio (Mw/Mn) of the weight average molecular weight (Mw) thereof to the number average molecular weight (Mn) thereof of 2 to 10, having a swell ratio (SR) of less than 1.35, and having a g* of 0.50 to 0.75.Type: ApplicationFiled: May 27, 2010Publication date: March 15, 2012Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Yoshinobu Nozue, Naoko Ochi
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Publication number: 20120065351Abstract: An ethylene-?-olefin copolymer comprising monomer units derived from ethylene and monomer units derived from an ?-olefin having 3 to 20 carbon atoms, having a density (d) of 850 to 970 kg/m3, having a melt flow rate (MFR) of 0.01 to 100 g/10 min, having a bimodal molecular weight distribution, and having a ratio (Mw/Mn) of the weight average molecular weight (Mw) thereof to the number average molecular weight (Mn) thereof of 31 to 70, wherein the number (NLCB) of branches having 5 or more carbon atoms measured by 13C-NMR is from 0.7 to 1.0 per 1000 carbon atoms. This copolymer is superior in a balance between a melt tension, an extrusion load at extruding, and a mechanical strength.Type: ApplicationFiled: May 27, 2010Publication date: March 15, 2012Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Yoshinobu Nozue, Naoko Ochi
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Publication number: 20120065346Abstract: An ethylene-?-olefin copolymer comprising monomer units derived from ethylene and monomer units derived from an ?-olefin having 3 to 20 carbon atoms, having a density (d) of 860 to 950 kg/m3, having a melt flow rate (MFR) of 0.01 to 100 g/10 min, having a bimodal molecular weight distribution, and having a single melting peak measured by a differential scanning calorimeter (DSC).Type: ApplicationFiled: May 27, 2010Publication date: March 15, 2012Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Yoshinobu Nozue, Naoko Ochi
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Patent number: 8076418Abstract: An ethylene based polymer composition comprising the following component (A), the following component (B) and the following component (C) wherein the content of the component (A) is 120 to 1700 parts by weight per 100 parts by weight of the component (B) and the content of the component (C) is 3 to 20 parts by weight per 100 parts by weight of the component (B): Component (A): an ethylene-?-olefin copolymer satisfying all of the following requirements (a1) to (a3): (a1) the density is 890 to 925 kg/m3, (a2) the melt flow rate (MFR) is 0.1 to 30 g/10 minutes, (a3) the flow activation energy (Ea) is less than 50 kJ/mol, Component (B): an ethylene based polymer satisfying all of the following requirements (b1) to (b3): (b1) the density is 890 to 925 kg/m3, (b2) the melt flow rate (MFR) is 0.Type: GrantFiled: May 15, 2008Date of Patent: December 13, 2011Assignee: Sumitomo Chemical Company, LimitedInventors: Yoshinobu Nozue, Yasutoyo Kawashima
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Patent number: 8039554Abstract: An ethylene-?-olefin copolymer having monomer units derived from ethylene and monomer units derived from an ?-olefin of 3 to 20 carbon atoms, a melt flow rate (MFR) of 0.01 to 4 g/10 minutes, a density of 890 to 970 kg/m3, an activation energy of flow of 50 kJ/mol or more and a molecular weight distribution measured by gel permeation chromatography of 3 or more, wherein a characteristic relaxation time (?) determined by a melt viscoelasticity measurement or an external haze ratio (EHR) satisfies a relationship of the following formula (1) or (2), respectively: 3×MFR?0.75+1.1>?>1.3×MFR?0.5+1.4??(1) EHR??15×log MFR+0.Type: GrantFiled: September 28, 2006Date of Patent: October 18, 2011Assignee: Sumitomo Chemical Company, LimitedInventors: Yuki Iseki, Katsuhiro Yamada, Yasutoyo Kawashima, Yoshinobu Nozue
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Publication number: 20110218308Abstract: 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: ApplicationFiled: November 10, 2009Publication date: September 8, 2011Inventors: Yoshinobu Nozue, Yasutoyo Kawashima, Naoko Ochi, Takuya Ogane