Patents by Inventor Yutaka Minami
Yutaka Minami 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: 7569642Abstract: A higher olefin polymer having a polar group which is produced by subjecting to an incorporation reaction of a polar compound or halogen compound into a higher ?-olefin polymer satisfying the requirements of the following (1) and (2), which is obtained by polymerizing one or more higher ?-olefins having 10 or more carbon atoms or copolymerizing one or more higher ?-olefins having 10 or more carbon atoms with one or more other olefins and a method for producing a higher olefin polymer having a polar group which is obtained by polymerizing one or more higher ?-olefins having 10 or more carbon atoms or copolymerizing one or more higher ?-olefins having 10 or more carbon atoms with one or more other olefins to form a higher ?-olefins polymer satisfying the requirements of the following (1) and (2) and subsequently subjecting to an incorporation reaction of a polar compound or halogen compound into the higher ?-olefin polymer.Type: GrantFiled: September 28, 2004Date of Patent: August 4, 2009Assignee: Idemitsu Kosan Co., Ltd.Inventors: Ryo Aburatani, Masanori Sera, Yutaka Minami
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Patent number: 7544758Abstract: A propylenic polymer according to the present invention or a composition thereof have an excellent melt flowability and contains a less amount of stickiness-causing components, and also has a low modulus and is pliable, and is capable of providing a transparent molded article, thus being useful as a substitute for a pliable vinyl chloride resin. In addition, a molded article made therefrom exhibits an excellent heat seal performance at a low temperature, and is excellent in terms of transparency and rigidity. Specifically, it has an isotactic pentad fraction (mmmm), which indicates a stereoregulariry, of 30 to 80%, a molecular weight distribution (Mw/Mn) of 3.5 or less and an intrinsic viscosity [?] of 0.8 to 5 dl/g.Type: GrantFiled: September 1, 2006Date of Patent: June 9, 2009Assignee: Idemitsu Kosan Co., Ltd.Inventors: Yutaka Minami, Masato Kijima, Takuji Okamoto, Yasushi Seta, Yasuhiro Mogi, Tsuyoshi Ota, Hideo Funabashi, Takashi Kashiwamura, Noriyuki Tani, Masami Kanamaru, Koji Kakigami
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Publication number: 20090082521Abstract: Provided is a water dispersible polyolefin resin composition which is capable of forming a coating film having a smooth solidified surface when applied onto a substrate and which has excellent storage stability. The water dispersible polyolefin resin composition contains (C) a surfactant, (D) a water-soluble polymeric compound and (E) a water-insoluble organic solvent in amounts of 0.01 to 1.00 part by mass, 0.01 to 1.00 part by mass and 2 to 200 parts by mass, respectively, per 100 parts by mass of a combination of 5 to 70% by mass of (A) a poly(1-butene) resin having (i) a mesopentad fraction [mmmm] of 20 to 80 mole % and (ii) a weight average molecular weight (Mw) measured by gel permeation chromatography (GPC) of 10,000 to 1,000,000 or 5 to 70% by mass of (A?) polypropylene resin having (i) a mesopentad fraction [mmmm] of 20 to 60 mole % and (ii) an intrinsic viscosity [?] measured at 135° C. in tetralin of 0.1 to 15 dl/g with 95 to 30% by mass of (B) water.Type: ApplicationFiled: March 22, 2006Publication date: March 26, 2009Applicant: Idemitsu Kosan Co., Ltd.Inventors: Masami Kanamaru, Yutaka Minami
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Publication number: 20090082532Abstract: The present invention provides a modified ?-olefin polymer obtained by reacting (i) an ?-olefin polymer obtained by homopolymerization or copolymerization of one kind or two kinds or more of an ?-olefin having 3 or more carbon atoms and having (1) a mesopentad fraction of 40 to 75 mol % or a stereo-regularity index M4 of 75 mol % or less, (2) a molecular weight distribution converted to polystyrene equivalent of 3.0 or less determined by a GPC method and (3) an intrinsic viscosity [?] (in tetralin, at 135° C.) of 0.01 to 5.0 dL/g, (ii) a radical initiator and (iii) a monomer having a silane group and an ethylenic unsaturated group or silane coupling agent as well as a process for production of a cross-linked product of the modified ?-olefin polymer.Type: ApplicationFiled: June 15, 2006Publication date: March 26, 2009Applicant: IDEMITSU KOSAN CO., LTD.Inventors: Takenori Fujimura, Iwao Akiba, Yutaka Minami, Toyozo Fujioka
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Publication number: 20090023857Abstract: A water dispersible resin composition capable of forming a flat and smooth coating film with a solidified surface upon application to a base material and excellent in storage stability is provided. It is a water dispersible resin composition comprising 0.01 to 5 parts by mass of a surfactant (C) relative to 100 parts by mass of a combination of 5 to 70% by mass of a side-chain crystalline resin (A) with 95 to 30% by mass of water (B) as well as a water dispersible polyolefin-based resin composition comprising a combination of 5 to 80% by mass of a modified side-chain crystalline polyolefin-based resin with 95 to 20% by mass of water, in which for example, a side-chain crystalline olefin-based polymer (G) obtained by polymerization of one kind or more of higher ?-olefins having 10 or more carbon atoms is modified with a radical initiator and an organic acid, organic acid anhydride or organic acid ester.Type: ApplicationFiled: July 4, 2006Publication date: January 22, 2009Applicant: Idemitsu Kosan Co., Ltd.Inventors: Masami Kanamaru, Masanori Sera, Yutaka Minami
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Publication number: 20090018288Abstract: Crosslinked olefin polymers which are reduced in stickiness and improved in rigidity, heat resistance, light resistance, and water resistance while retaining the molding properties such as injection moldability, spinnability, film-forming properties and the physical properties such as toughness (including elongation and break strength) and tackiness; and a process for the production thereof. Crosslinked olefin polymers which are obtained by reacting an ?-olefin polymer produced by polymerization of at least one ?-olefin having 6 or more carbon atoms or polymerization of at least one ?-olefin having 6 or more carbon atoms with at least one other ?-olefin with a crosslinking agent and which satisfy the following requirements: (1) the content of units of ?-olefins having 6 or more carbon atoms is 50 mol % or more, (2) the molecular weight distribution (Mw/Mn) as determined by gel permeation chromatography (GPC) is 7.Type: ApplicationFiled: November 7, 2005Publication date: January 15, 2009Applicant: Idemitsu Kosan Co., Ltd.Inventors: Ryo Aburatani, Yutaka Obata, Tomoaki Takebe, Masanori Sera, Yutaka Minami
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Patent number: 7459503Abstract: The present invention relates to a method for producing a modified propylene-based polymer containing modifying a propylene-based polymer by a radical initiator and an organic acid, a modified propylene-based polymer obtained by the method, and an adhesive composition containing the modified propylene-based polymer. The propylene-based polymer is a propylene homopolymer satisfying the conditions of (a) mmmm=20 to 60 mol %, (b) [rrrr/(1-mmmm)]?0.1, (c) rmrm>2.5 mol %, (d) mmxrr/(mr)2?2.0, and (e) the weight ratio (W25) of components eluted at 25° C. or lower in a temperature programmed chromatography is 20 to 100% by weight, or a propylene copolymer satisfying the condition of (h) the stereoregularity index (P) obtained by 13C-NMR measurement is 55 to 90 mol %. The modified propylene-based polymer of the invention can make a polyolefin, etc. more adhesive, stronger, or flexible, to be useful for a high-adhesive sealant or an polyolefin with increased compatibility to an inorganic filler, etc.Type: GrantFiled: April 11, 2003Date of Patent: December 2, 2008Assignee: Idemitsu Kosan Co., Ltd.Inventors: Masami Kanamaru, Yutaka Minami, Ryo Aburatani, Tomio Tatsumi, Takenori Fujimura
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Patent number: 7442138Abstract: In a ratchet type chain tensioner, having a toothed rack on its plunger and a pawl cooperable with the rack, a recess is provided between the front end of the rack and the protruding end of the plunger. In the initial stages of operation of the tensioner, the pawl can enter the recess while permitting the plunger to protrude and retract freely within a limited range. Thereafter, when the chain controlled by the tensioner becomes elongated, the pawl cooperates with the rack to limit retraction of the plunger.Type: GrantFiled: October 20, 2006Date of Patent: October 28, 2008Assignee: Tsubakimoto Chain Co.Inventors: Yoshio Kurokawa, Shigenobu Sugasawa, Yutaka Minami, Kaori Mori, Timothy Marx
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Patent number: 7420023Abstract: The present invention relates to a process for producing a buten-1-based polymer satisfying the following requirements (a), (b) and (c): (a) a crystalline resin having a melting point (Tm-D) of 0 to 100° C., the melting point being defined as a top of a peak observed on a highest-temperature side in a melting endothermic curve obtained by a differential scanning calorimeter (DSC) when a sample is held in a nitrogen atmosphere at ?10° C. for 5 min and then heated at a temperature rise rate of 10° C./min; (b) a stereoregularity index represented by (mmmm)/(mmrr+rmmr) of 20 or less; and (c) a weight-average molecular weight (Mw) of 10,000 to 1,000,000 and a ratio (Mw/Mn) of weight-average molecular weight to number-average molecular weight of 4.0 or less; a modified buten-1-based polymer produced by modifying the buten-1-based polymer with a radical polymerization initiator and an organic acid; and an adhesive composition containing the modified buten-1-based polymer.Type: GrantFiled: February 19, 2003Date of Patent: September 2, 2008Assignee: Idemitsu Kosan Co., Ltd.Inventors: Masami Kanamaru, Yutaka Minami, Ryo Aburatani, Tomio Tatsumi
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Publication number: 20080119605Abstract: The present invention pertains to a master batch composition which contains 10 to 95% by mass of an additive for plastics, 1 to 50% by mass of an olefin polymer having specific physical properties, and 1 to 89% by mass of a polyolefin resin as a carrier, which is useful for producing a polyolefin resin, particularly an injection molded product of a polypropylene resin, which can improve dispersibility of additives in the polyolefin molded product, which permits high density filling of various additives in the master batch composition, and which is free of blocking. The present invention is also directed to a polyolefin resin composition in which the master batch composition is compounded in a polyolefin resin, and to a polyolefin molded product using the resin composition.Type: ApplicationFiled: November 22, 2005Publication date: May 22, 2008Applicant: Idemitsu Kosan Co., Ltd.Inventors: Tomoaki Takebe, Yutaka Minami, Tsutomu Onodera, Motoki Yamada
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Publication number: 20080071048Abstract: A 1-butene polymer satisfying the following (1), (2) and either (3) or (3?): a process for producing the polymer; a resin modifier comprising the polymer; and a hot-melt adhesive containing the polymer. (1) The intrinsic viscosity [?] as measured in tetralin solvent at 135° C. is 0.01 to 0.5 dL/g. (2) The polymer is a crystalline resin having a melting point (Tm-D) of 0 to 100° C., the melting point being defined as the top of the peak observed on the highest-temperature side in a melting endothermic curve obtained with a differential scanning calorimeter (DSC) in a test in which a sample is held in a nitrogen atmosphere at ?10° C. for 5 min and then heated at a rate of 10° C./min. (3) The stereoregularity index {(mmmm)/(mmrr+rmmr)} is 30 or lower. (3?) The mesopentad content (mmmm) determined from a nuclear magnetic resonance (NMR) spectrum is 68 to 73%.Type: ApplicationFiled: September 21, 2007Publication date: March 20, 2008Applicant: Idemitsu Kosan Co., Ltd.Inventors: Yutaka MINAMI, Masami Kanamaru, Toyozo Fujioka, Tomoaki Takebe, Masao Inoue
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Patent number: 7320950Abstract: The propylene polymer of the present invention satisfies (1) a 25° C. hexane soluble content (H25) of 0-80 wt %; and (2) either no melting temperature (Tm) measurable by differential scanning calorimetry (DSC), or a melting temperature (Tm) satisfying, if measurable by DSC, the following relationship: ?H?3×(Tm?120) wherein ?H is a melting endotherm (J/g). The propylene homopolymer of the present invention satisfies (1) a meso pentad fraction (mmmm) of 30-60 mol %; (2) a racemic pentad fraction (rrrr) satisfying the following relationship: [rrrr/(1?mmmm)]?0.1; (3) a fraction (W25) eluted at a temperatures up to 25° C. by temperature-programmed chromatography, of from 20-100 wt %; and, (4) a pentad fraction (rmrm) of more than 2.5 mol %. The propylene copolymer of the present invention satisfies (1) a stereoregularity index (P) of 55-90 mol % as determined by 13C-NMR measurement; and (2) a fraction (W25) eluted at a temperatures up to 25° C. by temperature-programmed chromatography, of from 20-100 wt %.Type: GrantFiled: October 27, 2006Date of Patent: January 22, 2008Assignee: Idemitsu Kosan Co., Ltd,Inventors: Takuji Okamoto, Takashi Kashiwamura, Noriyuki Tani, Yutaka Minami, Masami Kanamaru, Koji Kakigami
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Patent number: 7309747Abstract: A 1-butene polymer satisfying the following (1), (2) and either (3) or (3?): a process for producing the polymer; a resin modifier comprising the polymer; and a hot-melt adhesive containing the polymer. (1) The intrinsic viscosity [?] as measured in tetralin solvent at 135° C. is 0.01 to 0.5 dL/g. (2) The polymer is a crystalline resin having a melting point (Tm-D) of 0 to 100° C., the melting point being defined as the top of the peak observed on the highest-temperature side in a melting endothermic curve obtained with a differential scanning calorimeter (DSC) in a test in which a sample is held in a nitrogen atmosphere at ?10° C. for 5 min and then heated at a rate of 10° C./min. (3) The stereoregularity index {(mmmm)/(mmrr+rmmr)} is 30 or lower. (3?) The mesopentad content (mmmm) determined from a nuclear magnetic resonance (NMR) spectrum is 68 to 73%.Type: GrantFiled: February 19, 2003Date of Patent: December 18, 2007Assignee: Idemitsu Kosan Co., Ltd.Inventors: Yutaka Minami, Masami Kanamaru, Toyozo Fujioka, Tomoaki Takebe, Masao Inoue
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Patent number: 7250211Abstract: Heat-sealing polypropylene films having specific characteristics, and being well-balanced between a tensile modulus and a heat seal temperature, less tacky, and excellent in processability, transparency and impact resistance, as well as being excellent in resistance to whitening due to peeling, softness and impact resistance. A multilayered heat-sealing polyolefin resin laminate having at least one outermost layer produced from the above heat-sealing propylene polymers exhibits excellent low-temperature heat sealability and sufficient interlaminar strength without the use of an adhesive. The heat-sealing propylene polymers are produced by polymerizing propylene or polymerizing propylene with ethylene and/or C4-C20 ?-olefin in the presence of a polymerization catalyst containing a transition metal compound represented by the following formula (I): wherein A1, A2, E1, E2, M, X, Y, q and r are as defined in the specification.Type: GrantFiled: October 24, 2000Date of Patent: July 31, 2007Assignee: Idemitsu Kosan Co., Ltd.Inventors: Yutaka Minami, Masami Kanamaru, Hideo Funabashi, Yasushi Seta, Masahiko Endoh
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Publication number: 20070142144Abstract: In a ratchet type chain tensioner, having a toothed rack on its plunger and a pawl cooperable with the rack, a recess is provided between the front end of the rack and the protruding end of the plunger. In the initial stages of operation of the tensioner, the pawl can enter the recess while permitting the plunger to protrude and retract freely within a limited range. Therafter, when the chain controlled by the tensioner becomes elongated, the pawl cooperates with the rack to limit retraction of the plunger.Type: ApplicationFiled: October 20, 2006Publication date: June 21, 2007Applicant: Tsubakimoto Chain Co.Inventors: Yoshio Kurokawa, Shigenobu Sugasawa, Yutaka Minami, Kaori Mori, Timothy Marx
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Patent number: 7214755Abstract: A crystalline higher ?-olefin polymer which is obtained from a C10 or more ?-olefin and satisfies either (1) the melting point (Tm) as measured with a differential scanning calorimeter (DSC) is 20 to 100° C. or (2) in an examination of spin-lattice relaxation time (T1) by solid NMR analysis, a single T1 is observed at the temperatures not lower than the melting point; and a process for producing the ?-olefin polymer with a specific metallocene catalyst. The crystalline higher ?-olefin polymer is excellent in low-temperature characteristics, rigidity, heat resistance, compatibility with lubricating oils, mixability with inorganic fillers, and secondary processability.Type: GrantFiled: February 19, 2003Date of Patent: May 8, 2007Assignee: Idemitsu Kosan Co., Ltd.Inventors: Yutaka Minami, Masami Kanamaru, Masanori Sera, Tatsuya Egawa, Takenori Fujimura
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Publication number: 20070088124Abstract: The present invention relates to a thermoplastic resin composition, which contains 0.1 to 99.9% by mass of a thermoplastic resin (1) and 0.1 to 99.9% by mass of a higher ?-olefin polymer (3) containing 50 mol % or more of an ?-olefin having 10 or more carbon atoms, or contains 0.1 to 99.9% by mass of a thermoplastic resin (1), more than 0% to not more than 99.8% by mass of an elastomer (2), and 0.1 to 99.9% by mass of a higher ?-olefin polymer (3) containing 50 mol % or more of an ?-olefin having 10 or more carbon atoms, and a molded article, a sheet, and a film produced from the composition. The composition has excellent mechanical properties including high elastic modulus and impact resistant strength, without impairing heat resistance and mold workability.Type: ApplicationFiled: April 15, 2003Publication date: April 19, 2007Inventors: Masanori Sera, Yutaka Minami, Masami Kanamaru
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Publication number: 20070079825Abstract: The present invention relates to a heat storage material composition comprising 20 to 100% by weight of a heat storage material, 80 to 0% by weight of crystalline polyolefin (B) and 50 to 0% by weight of an elastomer (C), and the heat storage material described above contains a side chain-crystalline polymer (A), wherein the heat storage material described above comprises preferably a higher ?-olefin polymer (a) containing 50 mole % or more of higher ?-olefin having 10 or more carbon atoms and a petroleum wax (b) in which a melting point (Tm) is higher by 10° C. or more than that of the polymer (a). Provided is a heat storage material composition which has less bleeding and stickiness and is excellent in stability at high temperature and which can meet a change in temperature such as a difference in room temperature when applied to a material for floor heating and can avoid a heating state deviated to high temperature or low temperature.Type: ApplicationFiled: October 27, 2004Publication date: April 12, 2007Applicant: Idemitsu Kosan Co., Ltd.Inventors: Masanori Sera, Yutaka Minami, Takenori Fujimura
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Patent number: 7199202Abstract: A propylenic polymer according to the present invention or a composition thereof have an excellent melt flowability and contains a less amount of stickiness-causing components, and also has a low modulus and is pliable, and is capable of providing a transparent molded article, thus being useful as a substitute for a pliable vinyl chloride resin. In addition, a molded article made therefrom exhibits an excellent heat seal performance at a low temperature, and is excellent in terms of transparency and rigidity. Specifically, it has an isotactic pentad fraction (mmmm), which indicates a stereoregulariry, of 30 to 80%, a molecular weight distribution (Mw/Mn) of 3.5 or less and an intrinsic viscosity [?] of 0.8 to 5 dl/g.Type: GrantFiled: May 28, 2004Date of Patent: April 3, 2007Assignee: Idemitsu Kosan Co. Ltd.Inventors: Yutaka Minami, Masato Kijima, Takuji Okamoto, Yasushi Seta, Yasuhiro Mogi, Tsuyoshi Ota, Hideo Funabashi, Takashi Kashiwamura, Noriyuki Tani, Masami Kanamaru, Koji Kakigami
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Publication number: 20070073021Abstract: A higher olefin polymer having a polar group which is produced by subjecting to an incorporation reaction of a polar compound or halogen compound into a higher ?-olefin polymer satisfying the requirements of the following (1) and (2), which is obtained by polymerizing one or more higher ?-olefins having 10 or more carbon atoms or copolymerizing one or more higher ?-olefins having 10 or more carbon atoms with one or more other olefins and a method for producing a higher olefin polymer having a polar group which is obtained by polymerizing one or more higher ?-olefins having 10 or more carbon atoms or copolymerizing one or more higher ?-olefins having 10 or more carbon atoms with one or more other olefins to form a higher ?-olefins polymer satisfying the requirements of the following (1) and (2) and subsequently subjecting to an incorporation reaction of a polar compound or halogen compound into the higher ?-olefin polymer.Type: ApplicationFiled: September 28, 2004Publication date: March 29, 2007Inventors: Ryo Aburatani, Masanori Sera, Yutaka Minami