Patents by Inventor Tadahiko MIKAMI
Tadahiko MIKAMI 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: 20240124642Abstract: It is provided that a polyester resin and a polyester resin composition that allow reduction of harmful outgas and can form a coating film having excellent characteristics such as curability, retort resistance, and processability. A polyester resin composition comprising polyester resin (A), wherein the polyester resin composition satisfies the following requirements (i) to (iii), (i) the polyester resin (A) has an acid value of 100 eq/ton or more, (ii) the polyester resin composition substantially contains no curing agent, and (iii) the polyester resin (A) includes, as a polyol component constituting the polyester resin (A), a diol (a) having two primary hydroxy groups and having no alicyclic structure, and, furthermore, one or both of a diol (b) having an alicyclic structure, and a diol (c) having one primary hydroxy group and one secondary hydroxy group and having no alicyclic structure.Type: ApplicationFiled: February 3, 2022Publication date: April 18, 2024Applicant: TOYOBO MC CorporationInventors: Hiroyuki MIEDA, Katsuya SHIMENO, Tadahiko MIKAMI
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Publication number: 20240110005Abstract: It is provided that a polyester resin and a polyester resin composition that allow reduction of harmful outgas and can form a coating film having excellent characteristics such as curability, retort resistance, and processability. A polyester resin composition comprising polyester resin (A), wherein the polyester resin composition satisfies the following requirements (i) to (iii), (i) the polyester resin (A) has an acid value of 100 eq/ton or more, (ii) the polyester resin composition substantially contains no curing agent, and (iii) a content of tetrahydrofuran-insoluble matter is 10 mass % or more when the polyester resin composition has been heated at 240° C. for one hour.Type: ApplicationFiled: February 3, 2022Publication date: April 4, 2024Applicant: TOYOBO MC CorporationInventors: Hiroyuki MIEDA, Katsuya SHIMENO, Tadahiko MIKAMI
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Publication number: 20240084127Abstract: It is provided that a polyester resin and a polyester resin composition that allow induction of harmful outgas and can form a coating film having excellent characteristics such as curability, retort resistance, and processability. A polyester resin composition comprising polyester resin (A), wherein the polyester resin composition satisfies the following requirements (i) to (iii), (i) the polyester resin (A) has an acid value of 100 eq/ton or more, (ii) the polyester resin (A) includes, as a polyol component constituting the polyester resin (A), a diol (a) having two primary hydroxy groups and having no alicyclic structure, and, furthermore, one or both of a diol (b) having an alicyclic structure, and a diol (c) having one primary hydroxy group and one secondary hydroxy group and having no alicyclic structure, and (iii) the polyester resin (A) has unsaturated dicarboxylic acid (d) as a polycarboxylic acid component constituting the polyester resin (A).Type: ApplicationFiled: February 3, 2022Publication date: March 14, 2024Applicant: TOYOBO MC CorporationInventors: Hiroyuki MIEDA, Katsuya SHIMENO, Tadahiko MIKAMI
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Patent number: 11732164Abstract: The present invention aims to provide an adhesive composition which exhibits high adhesive property not only to the conventional polyimide and polyester film but also to a metal substrate, can achieve high solder heat resistance and exhibits excellent low-dielectric characteristics. According to the present invention, there is provided an adhesive composition containing an acid-modified polyolefin (a), an oligo-phenylene ether (b) having a number-average molecular weight of 3000 or less, and an epoxy resin (c), wherein the adhesive composition satisfies the following requirement(s) (A) and/or (B): (A) The adhesive composition contains more than 20 parts by mass and 60 parts by mass or less of the epoxy resin (c) to 100 parts by mass of the acid-modified polyolefin (a); (B) The adhesive composition further contains a polycarbodiimide (d).Type: GrantFiled: May 17, 2019Date of Patent: August 22, 2023Assignee: TOYOBO MC CORPORATIONInventors: Ryo Sonoda, Tadahiko Mikami, Tetsuo Kawakusu
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Publication number: 20230095125Abstract: The present inventors conducted intensive studies for solving the problems. As a result, they found a heat-sealable polyester resin which can be used for food application and which exhibits excellent adhesiveness to various containers made of polystylene, polyvinyl chloride, A-PET (amorphous polyethylene terephthalate) , or polypropylene, each having different property. The aim of the present invention is to provide a polyester resin which exhibits excellent adhesiveness to various substrates such as polystylene, polyvinyl chloride, or A-PET. According to the present invention, there is provided a polyester resin containing a polycarboxylic acid component and a polyhydric alcohol component as constitution units, wherein, when the total amount of the polyhydric alcohol component is taken as 100 mol%, the content of diethylene glycol component is 60 mol% or more, and wherein the glass transition temperature of the polyester resin is 20° C. or lower.Type: ApplicationFiled: March 26, 2021Publication date: March 30, 2023Applicant: TOYOBO CO., LTD.Inventors: Yasuhiro SAKAMOTO, Tadahiko MIKAMI, Hiroki OKAJIMA
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Publication number: 20230078293Abstract: The present invention aims to provide an adhesive composition excellent in storage stability, adhesiveness, blocking resistance, and water resistance. A crystalline polyester resin containing a polycarboxylic acid component and a polyhydric alcohol component as copolymerization components, wherein 30 to 70 mol % of terephthalic acid and 10 to 60 mol % of 1,4-cyclohexanedicarboxylic acid are contained as the polycarboxylic acid component, and 50 mol % or more of 1,4-butanediol is contained as the polyhydric alcohol component, wherein the acid value of the crystalline polyester resin is 100 to 600 eq/t, wherein the glass transition temperature of the crystalline polyester resin is ?30 to 30° C., and wherein the melting point of the crystalline polyester resin is 70 to 160° C.Type: ApplicationFiled: February 16, 2021Publication date: March 16, 2023Applicant: TOYOBO CO., LTD.Inventors: Tadahiko MIKAMI, Yasuhiro SAKAMOTO
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Patent number: 11459492Abstract: The present invention aims to provide an adhesive composition having excellent adhesive property and excellent anti-fogging property by way of simple and easy means such as co-extrusion with a substrate film, extrusion coating, solvent coating, etc. According to the present invention, there is provided an adhesive composition, characterized in that it contains a polyester resin (A) and an anti-fogging agent (C), and satisfies the following requirement (1): (1) Glass transition temperature of the polyester resin (A) is from ?30 to 30° C.Type: GrantFiled: January 17, 2018Date of Patent: October 4, 2022Assignee: TOYOBO CO., LTD.Inventors: Tadahiko Mikami, Masahito Tanigawa
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Patent number: 11312880Abstract: The present invention aims to provide a copolymerized polyester which is effective as a binder ingredient for aqueous paint, and a copolymerized polyester aqueous dispersion.Type: GrantFiled: April 10, 2019Date of Patent: April 26, 2022Assignee: TOYOBO CO., LTD.Inventors: Yuji Iwashita, Tadahiko Mikami
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Publication number: 20210371581Abstract: The present invention aims to provide a copolymerized polyester and a resin composition which are excellent in storage stability, water-resistant adhesion, processability, weathering resistance and leveling property. According to the present invention, there is provided a copolymerized polyester containing a polyvalent carboxylic acid component and a polyhydric alcohol component as copolymerization components, wherein, when a content of the polyvalent carboxylic acid component is taken as 100% by mole, a content of an alicyclic polyvalent carboxylic acid component is 50% by mole or more, and wherein the copolymerized polyester has an acid value of 170 to 1000 equivalents/106 g.Type: ApplicationFiled: December 18, 2019Publication date: December 2, 2021Applicant: TOYOBO CO., LTD.Inventors: Koichi SAKAMOTO, Tadahiko MIKAMI, Yuji IWASHITA, Katsuya SHIMENO
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Publication number: 20210002523Abstract: The present invention aims to provide an adhesive composition which exhibits high adhesive property not only to the conventional polyimide and polyester film but also to a metal substrate, can achieve high solder heat resistance and exhibits excellent low-dielectric characteristics. According to the present invention, there is provided an adhesive composition containing an acid-modified polyolefin (a), an oligo-phenylene ether (b) having a number-average molecular weight of 3000 or less, and an epoxy resin (c), wherein the adhesive composition satisfies the following requirement(s) (A) and/or (B): (A) The adhesive composition contains more than 20 parts by mass and 60 parts by mass or less of the epoxy resin (c) to 100 parts by mass of the acid-modified polyolefin (a); (B) The adhesive composition further contains a polycarbodiimide (d).Type: ApplicationFiled: May 17, 2019Publication date: January 7, 2021Applicant: TOYOBO CO., LTD.Inventors: Ryo SONODA, Tadahiko MIKAMI, Tetsuo KAWAKUSU
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Publication number: 20200317954Abstract: The present invention aims to provide a copolymerized polyester which is effective as a binder ingredient for aqueous paint, and a copolymerized polyester aqueous dispersion.Type: ApplicationFiled: April 10, 2019Publication date: October 8, 2020Applicant: TOYOBO CO., LTD.Inventors: Yuji IWASHITA, Tadahiko MIKAMI
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Publication number: 20200063006Abstract: The present invention aims to provide an adhesive composition having excellent adhesive property and excellent anti-fogging property by way of simple and easy means such as co-extrusion with a substrate film, extrusion coating, solvent coating, etc. According to the present invention, there is provided an adhesive composition, characterized in that it contains a polyester resin (A) and an anti-fogging agent (C), and satisfies the following requirement (1): (1) Glass transition temperature of the polyester resin (A) is from ?30 to 30° C.Type: ApplicationFiled: January 17, 2018Publication date: February 27, 2020Applicant: TOYOBO CO., LTD.Inventors: Tadahiko MIKAMI, Masahito TANIGAWA