Patents by Inventor Mitsugu Nakae
Mitsugu Nakae 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: 10513580Abstract: Provided is a polycarbonate resin composition, including, with respect to 100 parts by mass of an aromatic polycarbonate resin (A), 0.005 part by mass to 1 part by mass of a phosphorus-based compound (B) having an aryl group, and 0.005 part by mass to 5 parts by mass of a polyether compound (C) having a specific polyoxyalkylene structure, in which: an amount of a compound having a phenol structure produced by decomposition of the phosphorus-based compound (B) 1,500 hours after standing thereof under conditions of 40° C. and a humidity of 90% is 5 mass % or less with respect to the phosphorus-based compound (B); and when a weight of the phosphorus-based compound (B) is measured with a thermogravimetric-differential thermal analysis machine under a nitrogen atmosphere, a temperature at which the weight becomes smaller than the weight before the measurement by 2% is 340° C. or more.Type: GrantFiled: October 15, 2015Date of Patent: December 24, 2019Assignee: IDEMITSU KOSAN CO., LTD.Inventors: Masami Takimoto, Takahiro Torii, Mitsugu Nakae
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Patent number: 10221279Abstract: Provided is a polycarbonate resin molding material, including an aromatic polycarbonate resin (A), in which the polycarbonate resin molding material has: a content of o-hydroxyacetophenone measured by a predetermined method (1) of 1 ppm by mass or less; and a YI value measured by a predetermined method (2) of 1.21 or less.Type: GrantFiled: July 6, 2017Date of Patent: March 5, 2019Assignee: IDEMITSU KOSAN CO., LTD.Inventors: Masami Takimoto, Takahiro Torii, Mitsugu Nakae
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Publication number: 20170298176Abstract: Provided is a polycarbonate resin molding material, including an aromatic polycarbonate resin (A), in which the polycarbonate resin molding material has: a content of o-hydroxyacetophenone measured by a predetermined method (1) of 1 ppm by mass or less; and a YI value measured by a predetermined method (2) of 1.21 or less.Type: ApplicationFiled: July 6, 2017Publication date: October 19, 2017Applicant: IDEMITSU KOSAN CO., LTD.Inventors: Masami TAKIMOTO, Takahiro TORll, Mitsugu NAKAE
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Patent number: 9783674Abstract: Provided is a polycarbonate resin composition, including, with respect to 100 parts by mass of an aromatic polycarbonate resin (A), 0.005 part by mass to 1 part by mass of a phosphorus-based compound (B) having an aryl group, and 0.005 part by mass to 5 parts by mass of a polyether compound (C) having a polyoxyalkylene structure, in which the phosphorus-based compound (B) includes such a compound that an amount of a compound having a phenol structure produced by decomposition of the compound 1,500 hours after standing thereof under conditions of 40° C. and a humidity of 90% is 5 mass % or less with respect to the phosphorus-based compound (B).Type: GrantFiled: November 10, 2014Date of Patent: October 10, 2017Assignee: IDEMITSU KOSAN CO., LTD.Inventors: Masami Takimoto, Mitsugu Nakae
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Publication number: 20170275422Abstract: Provided is a polycarbonate resin composition, including, with respect to 100 parts by mass of an aromatic polycarbonate resin (A), 0.005 part by mass to 1 part by mass of a phosphorus-based compound (B) having an aryl group, and 0.005 part by mass to 5 parts by mass of a polyether compound (C) having a specific polyoxyalkylene structure, in which: an amount of a compound having a phenol structure produced by decomposition of the phosphorus-based compound (B) 1,500 hours after standing thereof under conditions of 40° C. and a humidity of 90% is 5 mass % or less with respect to the phosphorus-based compound (B); and when a weight of the phosphorus-based compound (B) is measured with a thermogravimetric-differential thermal analysis machine under a nitrogen atmosphere, a temperature at which the weight becomes smaller than the weight before the measurement by 2% is 340° C. or more.Type: ApplicationFiled: October 15, 2015Publication date: September 28, 2017Applicant: IDEMITSU KOSAN CO., LTD.Inventors: Masami TAKIMOTO, Takahiro TORII, Mitsugu NAKAE
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Patent number: 9732185Abstract: Provided is a polycarbonate resin molding material, including an aromatic polycarbonate resin (A), in which the polycarbonate resin molding material has: a content of o-hydroxyacetophenone measured by a predetermined method (1) of 1 ppm by mass or less; and a YI value measured by a predetermined method (2) of 1.21 or less.Type: GrantFiled: November 10, 2014Date of Patent: August 15, 2017Assignee: IDEMITSU KOSAN CO., LTD.Inventors: Masami Takimoto, Takahiro Torii, Mitsugu Nakae
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Patent number: 9670316Abstract: Provided is an aromatic polycarbonate resin molded body, which is obtained by molding a resin molding material containing an aromatic polycarbonate resin (A), in which: the molded body has a thin-walled portion having a thickness of 0.5 mm or less; the molded body has an o-hydroxyacetophenone content of 1 ppm by mass or less and a nitrogen atom content of 15 ppm or less; and the molded body is free of an absorption maximum in a wavelength range of from 500 nm to 600 nm.Type: GrantFiled: November 10, 2014Date of Patent: June 6, 2017Assignee: IDEMITSU KOSAN CO., LTD.Inventors: Masami Takimoto, Takahiro Torii, Mitsugu Nakae
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Publication number: 20160297924Abstract: Provided is a polycarbonate resin molding material, including an aromatic polycarbonate resin (A), in which the polycarbonate resin molding material has: a content of o-hydroxyacetophenone measured by a predetermined method (1) of 1 ppm by mass or less; and a YI value measured by a predetermined method (2) of 1.21 or less.Type: ApplicationFiled: November 10, 2014Publication date: October 13, 2016Applicant: IDEMITSU KOSAN CO., LTD.Inventors: Masami TAKIMOTO, Takahiro TORII, Mitsugu NAKAE
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Publication number: 20160280909Abstract: Provided is a polycarbonate resin composition, including, with respect to 100 parts by mass of an aromatic polycarbonate resin (A), 0.005 part by mass to 1 part by mass of a phosphorus-based compound (B) having an aryl group, and 0.005 part by mass to 5 parts by mass of a polyether compound (C) having a polyoxyalkylene structure, in which the phosphorus-based compound (B) includes such a compound that an amount of a compound having a phenol structure produced by decomposition of the compound 1,500 hours after standing thereof under conditions of 40° C. and a humidity of 90% is 5 mass % or less with respect to the phosphorus-based compound (B).Type: ApplicationFiled: November 10, 2014Publication date: September 29, 2016Applicant: IDEMITSU KOSAN CO., LTD.Inventors: Masami TAKIMOTO, Mitsugu NAKAE
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Publication number: 20160272758Abstract: Provided is an aromatic polycarbonate resin molded body, which is obtained by molding a resin molding material containing an aromatic polycarbonate resin (A), in which: the molded body has a thin-walled portion having a thickness of 0.5 mm or less; the molded body has an o-hydroxyacetophenone content of 1 ppm by mass or less and a nitrogen atom content of 15 ppm or less; and the molded body is free of an absorption maximum in a wavelength range of from 500 nm to 600 nm.Type: ApplicationFiled: November 10, 2014Publication date: September 22, 2016Applicant: IDEMITSU KOSAN CO., LTD.Inventors: Masami TAKIMOTO, Takahiro TORII, Mitsugu NAKAE
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Patent number: 7922803Abstract: A transparent cured film including organic fine particles having an ultraviolet absorbing group and an average particle diameter of 1 to 200 nm, the particles being dispersed in a matrix having an Si—O bond, and having a transmittance of visible light of 80% or more and a haze value of 10% or less. The coating composition can be produced, for example, from a coating composition containing (1) an alkoxysilane compound or polyalkoxysilane compound; (2) an aminosilane compound; (3) an epoxysilane compound; (4) a polymer ultraviolet absorber; (5) a curing catalyst; and (6) a solvent.Type: GrantFiled: May 22, 2009Date of Patent: April 12, 2011Assignee: Idemitsu Kosan Co., Ltd.Inventors: Kazuhiko Ito, Mitsugu Nakae
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Patent number: 7905950Abstract: A transparent cured film including organic fine particles having an ultraviolet absorbing group and an average particle diameter of 1 to 200 nm, the particles being dispersed in a matrix having an Si—O bond, and having a transmittance of visible light of 80% or more and a haze value of 10% or less. The coating composition can be produced, for example, from a coating composition containing (1) an alkoxysilane compound or polyalkoxysilane compound; (2) an aminosilane compound; (3) an epoxysilane compound; (4) a polymer ultraviolet absorber; (5) a curing catalyst; and (6) a solvent.Type: GrantFiled: August 25, 2005Date of Patent: March 15, 2011Assignee: Idemitsu Kosan Co., Ltd.Inventors: Kazuhiko Ito, Mitsugu Nakae
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Publication number: 20090233076Abstract: A transparent cured film including organic fine particles having an ultraviolet absorbing group and an average particle diameter of 1 to 200 nm, the particles being dispersed in a matrix having an Si—O bond, and having a transmittance of visible light of 80% or more and a haze value of 10% or less. The coating composition can be produced, for example, from a coating composition containing (1) an alkoxysilane compound or polyalkoxysilane compound; (2) an aminosilane compound; (3) an epoxysilane compound; (4) a polymer ultraviolet absorber; (5) a curing catalyst; and (6) a solvent.Type: ApplicationFiled: May 22, 2009Publication date: September 17, 2009Applicant: Idemitsu Kosan Co., Ltd.Inventors: Kazuhiko ITO, Mitsugu NAKAE
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Publication number: 20090011256Abstract: A cured film including: organic ultraviolet-absorbing particles having an average particle diameter of 1 to 200 nm; and inorganic ultraviolet-absorbing particles and/or colloidal silica having an average particle diameter of 1 to 200 nm; the particles being dispersed in a matrix having an Si—O bond.Type: ApplicationFiled: February 16, 2007Publication date: January 8, 2009Applicant: Idemitsu Kosan Co., Ltd.Inventors: Kazuhiko Ito, Mitsugu Nakae, Masahiro Sekiguchi
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Patent number: 5942594Abstract: A polycarbonate exhibiting excellent fluidity and moisture resistance and a process for efficiently producing the polycarbonate are provided.The polycarbonate has a main chain comprising a repeating unit represented by general formula (I): ##STR1## wherein R.sup.1 and R.sup.2 each represents hydrogen atom or an alkyl group having 1 to 7 carbon atoms; contains 100 ppm by weight or less of a unit of a phenyl salicylate structure expressed by formula (II): ##STR2## in the main chain; and has a viscosity-average molecular weight of 10,000 or more. The polycarbonate is produced in accordance with a process comprising transesterification in the presence of a catalyst comprising a combination of an organic basic compound containing nitrogen and a quaternary phosphonium salt.Type: GrantFiled: March 19, 1998Date of Patent: August 24, 1999Assignee: Idemitsu Kosan Co., Ltd.Inventors: Mitsugu Nakae, Yasuhiro Ishikawa, Sadayuki Sato
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Patent number: 5470939Abstract: A polycarbonate copolymer having a desirable heat resistance and impact resistance, which comprises a carbonate structural unit of the formula (I): ##STR1## wherein A is alkylidene, alkylene, arylene, arylalkylene, --O--, --S--, --SO.sub.2 -- or a single bond, and a carbonate structural unit of formula (II): ##STR2## wherein X.sup.1 and Y.sup.1 are hydrogen, halogen or an organic group and m and n are 1 to 4, wherein the proportion of the carbonate structural unit of the formula (II) being 2 to 15 mole % based on the amount of the carbonate structural unit of the formulas (I) and (II), and the viscosity average molecular weight of the copolymer being 15,000 to 40,000.Type: GrantFiled: October 13, 1994Date of Patent: November 28, 1995Assignee: Idemitsu Petrochemical Co., Ltd.Inventor: Mitsugu Nakae
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Patent number: 5391693Abstract: A polycarbonate copolymer having a desirable heat resistance and impact resistance, and a process for producing the copolymer. The polycarbonate copolymer comprises a carbonate structural unit of the formula (I): ##STR1## wherein A is alkylidene, alkylene, arylene, arylalkylene, --O--, --S--, --SO.sub.2 -- or a single bond, and a carbonate structural unit of formula (II): ##STR2## wherein X.sup.1 and Y.sup.1 are hydrogen, halogen or an organic group and m and n are 1 to 4, wherein the proportion of the carbonate structural unit of the formula (II) being 2 to 15 mole % based on the amount of the carbonate structural unit of the formulas (I) and (II), and the viscosity average molecular weight of the copolymer being 15,000 to 40,000.Type: GrantFiled: October 1, 1993Date of Patent: February 21, 1995Assignee: Idemitsu Petrochemical Co., Ltd.Inventor: Mitsugu Nakae