Patents Assigned to MORESCO Corporation
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Publication number: 20240116841Abstract: One aspect of the present invention relates to a dinaphthyl ether compound represented by formula (1): in the formula (1), R1 and R2 are the same or different and each represent a linear or branched hydrocarbon group having 6 to 32 carbon atoms; m and n are each a real number of 0 or more and satisfy 1.0?m+n?3.0.Type: ApplicationFiled: February 9, 2022Publication date: April 11, 2024Applicant: MORESCO CORPORATIONInventors: Tatsuya MAEDA, Mayumi HAYASHI, Kohei YAMASHITA, Masayuki HATA
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Publication number: 20240117265Abstract: One aspect of the present invention relates to a naphthyl phenyl ether compound represented by formula (1): in the formula (1), R1 and R2 are the same or different and each represent a linear or branched hydrocarbon group having 6 to 28 carbon atoms; m and n are each a real number of 0 or more and satisfy 1.0?m+n?3.0.Type: ApplicationFiled: February 9, 2022Publication date: April 11, 2024Applicant: MORESCO CORPORATIONInventors: Tatsuya MAEDA, Mayumi HAYASHI, Kohei YAMASHITA, Masayuki HATA
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Patent number: 11873275Abstract: Provided is a compound which allows realization of a lubricant having high adsorbability and a high covering property with respect to a magnetic disk, particularly a carbon protective film. A perfluoropolyether compound in accordance with an aspect of the present invention has a naphthyl group or a phenoxyphenyl group at any one of terminals thereof.Type: GrantFiled: May 18, 2020Date of Patent: January 16, 2024Assignee: Moresco CorporationInventors: Tsuyoshi Shimizu, Akinori Kimura
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Patent number: 11866550Abstract: Provided are a fluoropolyether compound having high heat resistance and capable of maintaining a surface protection layer even under high temperature, and a lubricant and a magnetic disk that contain the fluoropolyether compound. The fluoropolyether compound includes: three groups whose main chain contains a perfluoropolyether chain; and a trivalent linking group represented by Formula (1) below, the three groups being bound together via the trivalent linking group: where R1 is a saturated hydrocarbon group having 1 to 3 carbon atoms, a perfluoroalkyl group having 1 to 3 carbon atoms, an alkoxy group having 1 to 3 carbon atoms, a hydroxyl group, or an amino group, and A1, A2, and A3 are each independently an aromatic group.Type: GrantFiled: July 13, 2022Date of Patent: January 9, 2024Assignee: Moresco CorporationInventors: Tomoko Honda, Ryosuke Sagata
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Patent number: 11866548Abstract: Provided is a compound with which a lubricant having excellent adhesion to a magnetic disk, particularly to a protective layer can be provided. A perfluoropolyether compound in accordance with one aspect of this invention has a structure in which two perfluoropolyethers are bonded to each other through an aliphatic ether, the aliphatic ether including a carbon atom to which a primary alcohol is bonded.Type: GrantFiled: June 29, 2020Date of Patent: January 9, 2024Assignee: Moresco CorporationInventors: Ryosuke Sagata, Tsuyoshi Shimizu
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Patent number: 11651789Abstract: An object of an aspect of the present invention is to provide: a lubricant excellent in adsorbability on the surface of a magnetic disk and in contamination resistance; and a magnetic disk which uses the lubricant and which is excellent in durability. The lubricant in accordance with an aspect of the present invention contains a fluoropolyether compound having, at a terminal thereof, a hydroxyalkenyl group or a hydroxyalkynyl group.Type: GrantFiled: January 9, 2020Date of Patent: May 16, 2023Assignee: MORESCO CORPORATIONInventors: Akinori Kimura, Tsuyoshi Shimizu
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Patent number: 11571737Abstract: According to an aspect of the present invention, an aqueous composition contains at least one selected from a group consisting of a carboxylic acid compound represented by the following formula (1), a carboxylic anhydride represented by the following formula (2), and a trimellitic anhydride; a basic compound; and water. In the formula (1), “R” represents an alkanediyl group having 2 to 4 carbons, a vinylene group, or a benzene ring, and “a” represents 2 or 3. In the formula (2), “R” represents an alkanediyl group having 2 to 4 carbons, a vinylene group, or a benzene ring.Type: GrantFiled: June 21, 2019Date of Patent: February 7, 2023Assignee: MORESCO CORPORATIONInventors: Takahito Tsujimoto, Hiroaki Tomimatsu, Teruaki Yokoo
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Publication number: 20220372340Abstract: One aspect of the present invention relates to a method for producing a hot-melt adhesive, comprising: introducing a fluid into a heating kneader while or after kneading a hot-melt adhesive material in a liquid state, at an amount of 0.3 parts by mass or more with respect to 100 parts by mass of the hot-melt adhesive material; and performing vacuuming while heating stirring or dispersing the hot-melt adhesive material and the fluid so as to come into contact with each other.Type: ApplicationFiled: February 14, 2020Publication date: November 24, 2022Applicant: MORESCO CORPORATIONInventors: Mamiko FUJII, Maki SAMITSU, Masashi ISHIOKA, Takashi MATSUMOTO, Eiji KUSUNOKI
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Patent number: 11441093Abstract: An aspect of the present invention relates to a lubricant composition containing at least: (A) 50 to 80 mass % of silicone oil represented by formula (1) below, and having a mass-average molecular weight of 900 to 4000, a ratio (C/Si ratio) of carbon to silicon of 3.03 or higher in the structure, and a viscosity index (VI) of 300 or higher; (B) 10 to 49 mass % of hydrocarbon-based lubricant; and (C) 1 to 10 mass % of antioxidant.Type: GrantFiled: March 1, 2019Date of Patent: September 13, 2022Assignee: MORESCO CORPORATIONInventors: Mao Nakagaki, Shingo Maruyama, Kohei Yamashita
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Patent number: 11421172Abstract: Provided are a lubricant that is highly resistant to contamination and highly thermally stable, a lubricant that is highly durable and highly heat resistant, and a magnetic disk. A fluoropolyether compound contains perfluoropolyether groups, end groups each containing at least one hydroxyl group, and a linking group that is comprised of a C4-C14 hydrocarbon group and that contains at least one hydroxyl group.Type: GrantFiled: January 17, 2018Date of Patent: August 23, 2022Assignee: Moresco CorporationInventors: Tomomi Hatta, Tsuyoshi Shimizu, Aya Inoue, Yasuo Sakane
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Publication number: 20220154049Abstract: One aspect of the present invention is a method for producing an ethylene vinyl acetate hot-melt adhesive, comprising: introducing a liquid including at least one of water and alcohol into a heating kneader while or after kneading a hot-melt adhesive material in a liquid state, at an amount of 0.05 parts by mass or more with respect to 100 parts by mass of the hot-melt adhesive material; and performing vacuuming while heating stirring or dispersing the hot-melt adhesive material and the liquid so as to come into contact with each other.Type: ApplicationFiled: February 14, 2020Publication date: May 19, 2022Applicant: MORESCO CORPORATIONInventors: Mamiko FUJII, Masashi ISHIOKA, Katsuhito FUKUDA
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Patent number: 11261397Abstract: Provided is a lubricant composition for plastic working which lubricant composition is excellent in lubricity and mold releasability. The lubricant composition for plastic working which lubricant composition contains: (a) silica; and (b) an alkali metal salt of an organic acid, a weight ratio of (b) the alkali metal salt of the organic acid to (a) the silica (a weight of (b)/a weight of (a)) being not less than 2, is used.Type: GrantFiled: September 10, 2018Date of Patent: March 1, 2022Assignee: MORESCO CORPORATIONInventor: Kentaro Hamashima
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Patent number: 11219688Abstract: To provide an absorption promotor that is capable of improving the efficiency in absorption of a pharmaceutical drug and that is highly stable, an absorption promotor includes an oxa acid having a structure represented by the formula (1) below, where R1 represents a linear or branched hydrocarbon group having 1 to 40 carbon atoms, one or more but not all carbon atoms of which hydrocarbon group have optionally been substituted by an oxygen atom, a nitrogen atom, or a sulfur atom, the hydrocarbon group being saturated or unsaturated; m represents a real number of 0 to 50; n represents an integer of 1 to 5; and —C(?O)—X represents a functional group capable of chemical reaction.Type: GrantFiled: March 2, 2018Date of Patent: January 11, 2022Assignee: MORESCO CORPORATIONInventors: Mitsuru Sugawara, Yuki Sato, Yoh Takekuma, Shingo Maruyama
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Patent number: 11208578Abstract: One aspect of the present invention is a hot melt composition containing a silane coupling agent, a thermoplastic polymer, a softener, and a catalyst, wherein the silane coupling agent is hydrolyzed to a compound having a boiling point of 70 to 180° C.Type: GrantFiled: November 18, 2016Date of Patent: December 28, 2021Assignee: MORESCO CORPORATIONInventors: Hiroshi Kurokawa, Katsuhito Fukuda
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Patent number: 11119023Abstract: An apparatus for evaluating gas barrier properties, a support having a polymer for supporting a sample, a chamber on a permeation side, and a detection unit, the support being joined to the opening of the chamber on a permeation side; in which a polymer film is provided between the support and a sample; a chamber on a supply side is provided, being disposed so as to be closably attachable to the sample and able to go up and down; and an external chamber covers a region interposed between the polymer film and the support; and a method of evaluating gas barrier properties using the same.Type: GrantFiled: February 26, 2018Date of Patent: September 14, 2021Assignees: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY, MORESCO CORPORATIONInventors: Shigeki Hara, Hajime Yoshida, Yoshikazu Takahashi, Yasushi Hosooka, Takahiro Imamura
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Publication number: 20210276075Abstract: According to an aspect of the present invention, an aqueous composition contains at least one selected from a group consisting of a carboxylic acid compound represented by the following formula (1), a carboxylic anhydride represented by the following formula (2), and a trimellitic anhydride; a basic compound; and water. In the formula (1), “R” represents an alkanediyl group having 2 to 4 carbons, a vinylene group, or a benzene ring, and “a” represents 2 or 3. In the formula (2), “R” represents an alkanediyl group having 2 to 4 carbons, a vinylene group, or a benzene ring.Type: ApplicationFiled: June 21, 2019Publication date: September 9, 2021Applicant: MORESCO CORPORATIONInventors: Takahito TSUJIMOTO, Hiroaki TOMIMATSU, Teruaki YOKOO
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Publication number: 20210179959Abstract: An aspect of the present invention relates to a lubricant composition containing at least: (A) 50 to 80 mass % of silicone oil represented by formula (1) below, and having a mass-average molecular weight of 900 to 4000, a ratio (C/Si ratio) of carbon to silicon of 3.03 or higher in the structure, and a viscosity index (VI) of 300 or higher; (B) 10 to 49 mass % of hydrocarbon-based lubricant; and (C) 1 to 10 mass % of antioxidant.Type: ApplicationFiled: March 1, 2019Publication date: June 17, 2021Applicant: Moresco CorporationInventors: Mao NAKAGAKI, Shingo MARUYAMA, Kohei YAMASHITA
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Patent number: 11021430Abstract: Provided herein are various oxa acids having respective molecular weights and hydrophile-lipophile balances both different from each other.Type: GrantFiled: March 1, 2017Date of Patent: June 1, 2021Assignee: Moresco CorporationInventor: Shingo Maruyama
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Publication number: 20210131939Abstract: An apparatus for evaluating gas barrier properties, a support having a polymer for supporting a sample, a chamber on a permeation side, and a detection unit, the support being joined to the opening of the chamber on a permeation side; in which a polymer film is provided between the support and a sample; a chamber on a supply side is provided, being disposed so as to be closely attachable to the sample and able to go up and down; and an external chamber covers a region interposed between the polymer film and the support; and a method of evaluating gas barrier properties using the same.Type: ApplicationFiled: February 26, 2018Publication date: May 6, 2021Applicants: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY, MORESCO CORPORATIONInventors: Shigeki HARA, Hajime YOSHIDA, Yoshikazu TAKAHASHI, Yasushi HOSOOKA, Takahiro IMAMURA
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Patent number: 10975272Abstract: One aspect of the present invention is a hot melt composition including a modified thermoplastic polymer having an alkoxysilyl group in a molecule; a softener; and a catalyst.Type: GrantFiled: November 18, 2016Date of Patent: April 13, 2021Assignee: MORESCO CORPORATIONInventors: Hiroshi Kurokawa, Katsuhito Fukuda