Patents by Inventor Mikio Masuda

Mikio Masuda 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).

  • Patent number: 11279789
    Abstract: Provided are a hydrogenated block copolymer capable of giving a resin composition having good moldability and sufficient mechanical strength and excellent in flexibility, kink resistance and transparency and also excellent in pressure sensitive adhesiveness, adhesiveness and weather resistance, and a resin composition containing the hydrogenated block copolymer, as well as a pressure sensitive adhesive, an adhesive, a molded article, a liquid-packaging container, a medical tool, a medical tube, a corner member for weather seal, and a weather seal that are produced using these.
    Type: Grant
    Filed: November 4, 2020
    Date of Patent: March 22, 2022
    Assignee: KURARAY CO., LTD.
    Inventors: Shinya Oshita, Yusuke Nojima, Mikio Masuda
  • Publication number: 20210214486
    Abstract: The present invention relates to a block copolymer including a polymer block (A) containing more than 70 mol % of a structural unit derived from an aromatic vinyl compound, and a polymer block (B) containing 30 mol % or more of a structural unit derived from a conjugated diene compound, the block copolymer further satisfying following conditions. Condition (1): A content of the polymer block (A) in the block copolymer is 1 to 70% by mass. Condition (2): A maximum width of a series of temperature regions where tan ? measured in accordance with JIS K7244-10 (2005), under conditions including a strain amount of 0.1%, a frequency of 1 Hz, a measurement temperature of ?70 to 100° C., and a temperature rise rate of 3° C./min, is 1.0 or more is less than 16° C. Condition (3): A temperature at a peak position of tan ? in the condition (2) is 0° C. to +50° C. Condition (4): A mobility parameter M indicating a mobility of the polymer block (B) is 0.01 to 0.25 sec.
    Type: Application
    Filed: May 30, 2019
    Publication date: July 15, 2021
    Applicant: KURARAY CO., LTD.
    Inventors: Yasushi SENDA, Masahiro KATO, Mikio MASUDA
  • Publication number: 20210122868
    Abstract: Provided are a hydrogenated block copolymer capable of giving a resin composition having good moldability and sufficient mechanical strength and excellent in flexibility, kink resistance and transparency and also excellent in pressure sensitive adhesiveness, adhesiveness and weather resistance, and a resin composition containing the hydrogenated block copolymer, as well as a pressure sensitive adhesive, an adhesive, a molded article, a liquid-packaging container, a medical tool, a medical tube, a corner member for weather seal, and a weather seal that are produced using these.
    Type: Application
    Filed: November 4, 2020
    Publication date: April 29, 2021
    Applicant: KURARAY CO., LTD.
    Inventors: Shinya Oshita, Yusuke Nojima, Mikio Masuda
  • Patent number: 10927211
    Abstract: A block copolymer hydrogenate, which is a hydrogenate of a block copolymer having a polymer block (A) containing a structural unit derived from an aromatic vinyl compound in an amount of more than 70 mol %, and a polymer block (B) containing a structural unit derived from a conjugated diene compound in an amount of 30 mol % or more, and further satisfies the following requirements: Requirement (1): The content of the polymer block (A) in the block copolymer hydrogenate is 1 to 30% by mass. Requirement (2): The conjugated diene compound contains isoprene. Requirement (3): A total content of the 1,2-bond unit and the 3,4-bond unit in the structural units derived from the conjugated diene compound is 60 mol % or more. Requirement (4): The hydrogenation rate of the polymer block (B) is 60 mol % or more. Requirement (5): The block copolymer hydrogenate has a serial temperature range where tan ?, as measured according to JIS K7244-10 (2005) and under the conditions of a strain of 0.
    Type: Grant
    Filed: November 21, 2018
    Date of Patent: February 23, 2021
    Assignee: KURARAY CO., LTD.
    Inventors: Mikio Masuda, Yasushi Senda, Masahiro Kato
  • Publication number: 20200362084
    Abstract: A block copolymer hydrogenate, which is a hydrogenate of a block copolymer having a polymer block (A) containing a structural unit derived from an aromatic vinyl compound in an amount of more than 70 mol %, and a polymer block (B) containing a structural unit derived from a conjugated diene compound in an amount of 30 mol % or more, and further satisfies the following requirements: Requirement (1): The content of the polymer block (A) in the block copolymer hydrogenate is 1 to 30% by mass. Requirement (2): The conjugated diene compound contains isoprene. Requirement (3): A total content of the 1,2-bond unit and the 3,4-bond unit in the structural units derived from the conjugated diene compound is 60 mol % or more. Requirement (4): The hydrogenation rate of the polymer block (B) is 60 mol % or more. Requirement (5): The block copolymer hydrogenate has a serial temperature range where tan ?, as measured according to JIS K7244-10(2005) and under the conditions of a strain of 0.
    Type: Application
    Filed: November 21, 2018
    Publication date: November 19, 2020
    Applicant: KURARAY CO., LTD.
    Inventors: Mikio MASUDA, Yasushi SENDA, Masahiro KATO
  • Patent number: 10767089
    Abstract: The present invention is a thermoplastic polymer composition which contains 10-120 parts by mass of a polar group-containing polypropylene resin (B) per 100 parts by mass of a thermoplastic elastomer (A) that is a block copolymer having a polymer block containing an aromatic vinyl compound unit and a polymer block composed of a conjugated diene unit having 40% by mole or more of 1,2-bonds and 3,4-bonds in total, or a hydrogenated product of the block copolymer (provided that a thermoplastic polymer composition containing 1 part by mass or more of a polyvinyl acetal resin is excluded). This thermoplastic polymer composition is able to be bonded with a ceramic, a metal or a synthetic resin without requiring a primer treatment, and has excellent flexibility, mechanical characteristics, moldability, heat resistance and storage stability.
    Type: Grant
    Filed: April 26, 2017
    Date of Patent: September 8, 2020
    Assignee: KURARAY CO., LTD.
    Inventors: Asako Minamide, Mikio Masuda, Masahiro Suzuki
  • Patent number: 10745598
    Abstract: The present invention is a thermoplastic polymer composition which contains 10-120 parts by mass of a polar group-containing polypropylene resin (B) per 100 parts by mass of a thermoplastic elastomer (A) that is a block copolymer having a polymer block containing an aromatic vinyl compound unit and a polymer block composed of a conjugated diene unit having 40% by mole or more of 1,2-bonds and 3,4-bonds in total, or a hydrogenated product of the block copolymer (provided that a thermoplastic polymer composition containing 1 part by mass or more of a polyvinyl acetal resin is excluded). This thermoplastic polymer composition is able to be bonded with a ceramic, a metal or a synthetic resin without requiring a primer treatment, and has excellent flexibility, mechanical characteristics, moldability, heat resistance and storage stability.
    Type: Grant
    Filed: December 9, 2019
    Date of Patent: August 18, 2020
    Assignee: KURARAY CO., LTD.
    Inventors: Asako Minamide, Mikio Masuda, Masahiro Suzuki
  • Publication number: 20200109323
    Abstract: The present invention is a thermoplastic polymer composition which contains 10-120 parts by mass of a polar group-containing polypropylene resin (B) per 100 parts by mass of a thermoplastic elastomer (A) that is a block copolymer having a polymer block containing an aromatic vinyl compound unit and a polymer block composed of a conjugated diene unit having 40% by mole or more of 1,2-bonds and 3,4-bonds in total, or a hydrogenated product of the block copolymer (provided that a thermoplastic polymer composition containing 1 part by mass or more of a polyvinyl acetal resin is excluded). This thermoplastic polymer composition is able to be bonded with a ceramic, a metal or a synthetic resin without requiring a primer treatment, and has excellent flexibility, mechanical characteristics, moldability, heat resistance and storage stability.
    Type: Application
    Filed: December 9, 2019
    Publication date: April 9, 2020
    Applicant: KURARAY CO., LTD.
    Inventors: Asako MINAMIDE, Mikio MASUDA, Masahiro SUZUKI
  • Publication number: 20180223140
    Abstract: To provide a thermoplastic polymer composition, which can be adhered to a synthetic resin, a ceramic or a metal without performing a primer treatment or the like, is able to be handled as a molded article, exhibits an excellent adhesive property in a broad temperature range from a low temperature to room temperature and flexibility, and has high thermal creep resistance, and a molded article using the thermoplastic polymer composition. A thermoplastic polymer composition, which contains from 10 to 100 parts by weight of a polar group-containing polypropylene-based resin (B) based on 100 parts by weight of a hydrogenated block copolymer (A) in which block copolymer containing a polymer block (S) including an aromatic vinyl compound unit and a polymer block (D) including a conjugated diene compound unit is hydrogenated, in which the hydrogenated block copolymer (A) is a mixture containing a hydrogenated block copolymer (A1) having at least one tan ? local maximum value in a range from ?60 to ?40° C.
    Type: Application
    Filed: August 10, 2015
    Publication date: August 9, 2018
    Applicant: KURARAY CO., LTD.
    Inventors: Asako MINAMIDE, Mikio MASUDA, Yosuke JOGO
  • Publication number: 20180030195
    Abstract: Provided are a hydrogenated block copolymer capable of giving a resin composition having good moldability and sufficient mechanical strength and excellent in flexibility, kink resistance and transparency and also excellent in pressure sensitive adhesiveness, adhesiveness and weather resistance, and a resin composition containing the hydrogenated block copolymer, as well as a pressure sensitive adhesive, an adhesive, a molded article, a liquid-packaging container, a medical tool, a medical tube, a corner member for weather seal, and a weather seal that are produced using these.
    Type: Application
    Filed: February 23, 2016
    Publication date: February 1, 2018
    Applicant: KURARAY CO., LTD.
    Inventors: Shinya OSHITA, Yusuke NOJIMA, Mikio MASUDA
  • Publication number: 20170226390
    Abstract: The present invention is a thermoplastic polymer composition which contains 10-120 parts by mass of a polar group-containing polypropylene resin (B) per 100 parts by mass of a thermoplastic elastomer (A) that is a block copolymer having a polymer block containing an aromatic vinyl compound unit and a polymer block composed of a conjugated diene unit having 40% by mole or more of 1,2-bonds and 3,4-bonds in total, or a hydrogenated product of the block copolymer (provided that a thermoplastic polymer composition containing 1 part by mass or more of a polyvinyl acetal resin is excluded). This thermoplastic polymer composition is able to be bonded with a ceramic, a metal or a synthetic resin without requiring a primer treatment, and has excellent flexibility, mechanical characteristics, moldability, heat resistance and storage stability.
    Type: Application
    Filed: April 26, 2017
    Publication date: August 10, 2017
    Applicant: KURARAY CO., LTD.
    Inventors: Asako MINAMIDE, Mikio MASUDA, Masahiro SUZUKI
  • Patent number: 9670354
    Abstract: A thermoplastic polymer composition which is excellent in flexibility, mechanical properties, moldability, and particularly in heat resistance and is capable of adhering to ceramics, metals, and synthetic resins even at low temperature (for example, 190° C. or lower) without the treatment with a primer, and a molded product produced by using the thermoplastic polymer composition are described. The thermoplastic polymer composition includes 100 parts by mass of a thermoplastic elastomer (A), 1 to 100 parts by mass of a polyvinyl acetal resin (B), and 5 to 100 parts by mass of a polar group-containing polypropylene resin (C).
    Type: Grant
    Filed: August 24, 2011
    Date of Patent: June 6, 2017
    Assignee: KURARAY CO., LTD.
    Inventors: Asako Minamide, Mikio Masuda
  • Patent number: 9102849
    Abstract: A thermoplastic polymer composition which is excellent in flexibility, mechanical properties, and moldability and is capable of adhering to ceramics, metals, and synthetic resins even by heat treatment at a low temperature (for example, 190° C. or lower) without the treatment with a primer, and a molded product obtained by using the thermoplastic polymer composition. The thermoplastic polymer composition includes 100 parts by mass of a thermoplastic elastomer (A), 1 to 100 parts by mass of a polyvinyl acetal resin (B), 5 to 100 parts by mass of a polar group-containing olefin-based copolymer (C), and 0.1 to 300 parts by mass of a softener (D). The thermoplastic elastomer (A) is a block copolymer which has a polymer block constituted by aromatic vinyl compound units and a polymer block constituted by conjugated diene units or a hydrogenated product of the block copolymer.
    Type: Grant
    Filed: July 5, 2011
    Date of Patent: August 11, 2015
    Assignee: KURARAY CO., LTD.
    Inventors: Asako Minamide, Mikio Masuda
  • Publication number: 20140349127
    Abstract: The present invention is a thermoplastic polymer composition which contains 10-120 parts by mass of a polar group-containing polypropylene resin (B) per 100 parts by mass of a thermoplastic elastomer (A) that is a block copolymer having a polymer block containing an aromatic vinyl compound unit and a polymer block composed of a conjugated diene unit having 40% by mole or more of 1,2-bonds and 3,4-bonds in total, or a hydrogenated product of the block copolymer (provided that a thermoplastic polymer composition containing 1 part by mass or more of a polyvinyl acetal resin is excluded). This thermoplastic polymer composition is able to be bonded with a ceramic, a metal or a synthetic resin without requiring a primer treatment, and has excellent flexibility, mechanical characteristics, moldability, heat resistance and storage stability.
    Type: Application
    Filed: December 14, 2012
    Publication date: November 27, 2014
    Applicant: KURARAY CO., LTD.
    Inventors: Asako Minamide, Mikio Masuda, Masahiro Suzuki
  • Publication number: 20130196164
    Abstract: A thermoplastic polymer composition which is excellent in flexibility, mechanical properties, and moldability and is capable of adhering to ceramics, metals, and synthetic resins even by heat treatment at a low temperature (for example, 190° C. or lower) without the treatment with a primer, and a molded product obtained by using the thermoplastic polymer composition. The thermoplastic polymer composition includes 100 parts by mass of a thermoplastic elastomer (A), 1 to 100 parts by mass of a polyvinyl acetal resin (B), 5 to 100 parts by mass of a polar group-containing olefin-based copolymer (C), and 0.1 to 300 parts by mass of a softener (D). The thermoplastic elastomer (A) is a block copolymer which has a polymer block constituted by aromatic vinyl compound units and a polymer block constituted by conjugated diene units or a hydrogenated product of the block copolymer.
    Type: Application
    Filed: July 5, 2011
    Publication date: August 1, 2013
    Applicant: Kuraray Co., Ltd.
    Inventors: Asako Minamide, Mikio Masuda
  • Publication number: 20130157069
    Abstract: A thermoplastic polymer composition which is excellent in flexibility, mechanical properties, moldability, and particularly in heat resistance and is capable of adhering to ceramics, metals, and synthetic resins even at low temperature (for example, 190° C. or lower) without the treatment with a primer, and a molded product produced by using the thermoplastic polymer composition are described. The thermoplastic polymer composition includes 100 parts by mass of a thermoplastic elastomer (A), 1 to 100 parts by mass of a polyvinyl acetal resin (B), and 5 to 100 parts by mass of a polar group-containing polypropylene resin (C).
    Type: Application
    Filed: August 24, 2011
    Publication date: June 20, 2013
    Applicant: Kuraray Co., Ltd.
    Inventors: Asako Minamide, Mikio Masuda
  • Publication number: 20130122289
    Abstract: A thermoplastic polymer composition which is excellent in flexibility, mechanical properties, and moldability, capable of adhering to ceramics, metals, and synthetic resins without a treatment with a primer, and exhibits a high adhesion strength even when exposed to a high temperature environment, and a molded product obtained by using the thermoplastic polymer composition. The thermoplastic polymer composition includes 100 parts by mass of a thermoplastic elastomer (A), 1 to 100 parts by mass of a polyvinyl acetal resin (B), and 0.1 to 300 parts by mass a softener (C). The thermoplastic elastomer (A) is a block copolymer including a polymer block constituted by aromatic vinyl compound units and a polymer block constituted by conjugated diene units or a hydrogenated product of the block copolymer. The polyvinyl acetal resin (B) has a glass transition temperature of 80 to 130° C.
    Type: Application
    Filed: July 20, 2011
    Publication date: May 16, 2013
    Applicant: KURARAY CO., LTD.
    Inventors: Asako Minamide, Mikio Masuda
  • Publication number: 20090247688
    Abstract: A thermoplastic elastomer composition comprising from 35 to 50 parts by mass of a hydrogenated block copolymer (a) having a weight-average molecular weight of from 70000 to 120000, from 30 to 50 parts by mass of a rubber softener (b) and from 5 to 25 parts by mass of a polystyrene-based resin (c) having a weight-average molecular weight of from 100000 to 400000 [provided that the total of (a), (b) and (c) is 100 parts by mass], wherein the hydrogenated block copolymer (a) is prepared by hydrogenating a block copolymer having at least two polymer blocks A mainly comprising a vinyl aromatic compound unit and at least one polymer block B mainly comprising a conjugated diene unit, and has a vinyl aromatic compound unit content of from 35 to 45% by mass, and at least 50% of the carbon-carbon double bonds derived from the conjugated diene in the polymer block B are hydrogenated.
    Type: Application
    Filed: March 16, 2007
    Publication date: October 1, 2009
    Applicant: KURARAY CO., LTD.
    Inventors: Yosuke Jogo, Mikio Masuda, Noboru Higashida, Shinichi Torigoe, Kazuki Tokuchi, Nobuhiro Moriguchi