Patents Assigned to Chugoku Marine Paints, Ltd.
  • Patent number: 11390760
    Abstract: The present invention relates to a coating composition, a primer coating film, a layered antifouling coating film, a method of producing a substrate with a primer coating film, and a method of producing a substrate with a layered antifouling coating film. The coating composition includes an epoxy resin (A), an amine curing agent (B), a silane coupling agent (C), water (D), and a pigment (E). In the coating composition, the content of the water (D) is 3.5 to 11 parts by weight with respect to 100 parts by weight of non-volatile content in the coating composition, and a pigment volume concentration of the coating composition is 37 to 47%.
    Type: Grant
    Filed: March 15, 2017
    Date of Patent: July 19, 2022
    Assignee: CHUGOKU MARINE PAINTS, LTD.
    Inventor: Jyunji Niimoto
  • Patent number: 11254823
    Abstract: An object of the present invention is to provide an antifouling coating composition capable of forming an antifouling coating film that retains a high antifouling performance for a prolonged period of time and has an excellent damage resistance. Another object of the present invention is to provide an antifouling coating film formed with the antifouling coating composition, a substrate with an antifouling coating film and a method for producing the same, and an antifouling method using the antifouling coating film. The antifouling coating composition of the present invention contains a hydrolyzable polymer (A) containing a metal ester group, zinc oxide (B), and medetomidine (C), and has a content of the zinc oxide (B) in a solid content of the antifouling composition of 27 to 60% by mass.
    Type: Grant
    Filed: November 15, 2016
    Date of Patent: February 22, 2022
    Assignee: CHUGOKU MARINE PAINTS, LTD.
    Inventors: Jyunji Niimoto, Yusuke Hayashi, Satoshi Masuda, Hideyuki Tanaka
  • Patent number: 11162786
    Abstract: A three-dimensional surface roughness evaluating device wherein a two-dimensional laser displacement meter is disposed so that the width direction of the two-dimensional laser displacement meter coincides with a Y-axis direction, to be able to measure displacement data of coordinates in the Y-axis direction at fixed intervals, the measuring width of the two-dimensional laser displacement meter is at least two or more times mean width of the roughness profile elements RSm of elements of a measurement target, and a calculating device is configured to generate reference surface data of each coordinate by averaging in the Y-axis direction the displacement data acquired at fixed intervals in the X-axis direction by the two-dimensional laser displacement meter, and generate three-dimensional surface roughness data of the measurement target by subtracting the reference surface data of each coordinate from the displacement data of each X-Y plane coordinate.
    Type: Grant
    Filed: July 24, 2017
    Date of Patent: November 2, 2021
    Assignee: CHUGOKU MARINE PAINTS, LTD.
    Inventor: Hirohisa Mieno
  • Publication number: 20210301153
    Abstract: A waterborne antifouling coating material composition according to one embodiment of the present invention includes: synthetic resin (A); at least one component (B) selected from a resin acid and a derivative thereof; flaky pigment (C) having an aspect ratio of 5 to 30; antifouling agent (D); and water (E), wherein a mass ratio (A):(B) between the synthetic resin (A) and the component (B) is 1:0.1 to 1:4.
    Type: Application
    Filed: March 16, 2021
    Publication date: September 30, 2021
    Applicant: CHUGOKU MARINE PAINTS, LTD.
    Inventors: Kiwamu YAMANE, Shotaro HARADA
  • Patent number: 11098205
    Abstract: The present invention is to provide an antifouling coating composition capable of forming an antifouling coating film that exhibits a high antifouling performance even in a marine area having a heavy fouling load by animal species such as barnacles, has excellent slime resistance, and is prevented from cracking. Further, the present invention is also to provide an antifouling coating film, a substrate with an antifouling coating film and a method of producing the substrate, and an antifouling method, each using the composition. The antifouling coating composition of the present invention contains a polyorganosiloxane block-containing hydrolyzable copolymer (A) and medetomidine (B), wherein the polyorganosiloxane block-containing hydrolyzable copolymer (A) contains (i) a constituent unit derived from a hydrolyzable group-containing monomer (a1) and (ii) a constituent unit derived from a polyorganosiloxane block-containing monomer (a2).
    Type: Grant
    Filed: November 9, 2016
    Date of Patent: August 24, 2021
    Assignee: CHUGOKU MARINE PAINTS, LTD.
    Inventors: Jyunji Niimoto, Soichiro Tanino
  • Publication number: 20210024757
    Abstract: The present invention provides an antifouling coating film that exhibits suppressed elution of an organism repellent in exposure to a dynamic water flow in water and exhibits an antifouling property for a long time and a method of manufacturing the same, a water-contacting structure with an antifouling coating film, and an antifouling tape and a method of manufacturing the same, and relates to an antifouling coating film containing a binder (A) and an organism repellent (B), having a riblet structure on a surface thereof, the organism repellent (B) containing one or more kind selected from the group consisting of copper pyrithione, zinc pyrithione, 4-bromo-2-(4-chlorophenyl)-5-(trifluoromethyl)-1H-pyrrole-3-carbonitrile, and 4,5-dichloro-2-n-octyl-4-isothiazolin-3-one, and a method of manufacturing the same.
    Type: Application
    Filed: March 27, 2019
    Publication date: January 28, 2021
    Applicant: CHUGOKU MARINE PAINTS, LTD.
    Inventor: Soichiro TANINO
  • Patent number: 10858521
    Abstract: An antifouling coating composition contains a silyl ester (co)polymer and medetomidine and is used to prevent the fouling of substrates by aquatic organisms and which can form antifouling coating films exhibiting outstanding antifouling properties over a long period and also has good storage stability. The antifouling coating composition includes a silyl ester (co)polymer (A) and medetomidine (B), the silyl ester (co)polymer (A) including structural units derived from a monomer (a) represented by the general formula (I): R1—CH?C(CH3)—COO—(SiR2R3O)n—SiR4R5R6, and structural units derived from an unsaturated monomer (b) copolymerizable with the monomer (a).
    Type: Grant
    Filed: May 20, 2016
    Date of Patent: December 8, 2020
    Assignee: CHUGOKU MARINE PAINTS, LTD.
    Inventors: Yuki Iwata, Soichiro Tanino, Satoshi Masuda, Hideyuki Tanaka
  • Publication number: 20200317932
    Abstract: The present invention relates to an anticorrosive coating composition, an anticorrosive coating film, a substrate with an anticorrosive coating film, and a method of producing a substrate with an anticorrosive coating film. The anticorrosive coating composition includes an epoxy resin (a), a polyvinyl alkyl ether (co)polymer (b), and an amine curing agent (c).
    Type: Application
    Filed: February 24, 2017
    Publication date: October 8, 2020
    Applicant: CHUGOKU MARINE PAINTS, LTD.
    Inventor: Shinsho KODAMA
  • Publication number: 20200291265
    Abstract: An object of the present invention is to provide a coating composition capable of forming a coating film which can maintain its appearance and gloss over a long period and which has high film hardness and high flexibility and exhibits excellent adhesion with respect to an epoxy resin anticorrosive coating film. An acrylic polysiloxane resin coating composition of the invention includes (A) a silicone resin, (B) a compound having one or more functional groups capable of undergoing Michael addition reaction with an unsaturated double bond in an acryloyloxy group, and having one or more alkoxy groups bonded to silicon, (C) a trifunctional or polyfunctional aliphatic urethane acrylate oligomer having a cyclic structure, and (D) a bifunctional acrylate monomer having no ether structures (except an ether structure in an acryloyloxy group) and no aromatic rings, the mass ratio of the total amount of (A) and (B) to the total amount of any acrylate oligomer(s) and any acrylate monomer(s) being 40:60 to 70:30.
    Type: Application
    Filed: November 12, 2018
    Publication date: September 17, 2020
    Applicant: CHUGOKU MARINE PAINTS, LTD.
    Inventors: Hiroaki MURATA, Keisuke NAKATANI
  • Publication number: 20200056055
    Abstract: The present invention is to provide an antifouling coating composition capable of forming an antifouling coating film that exhibits a high antifouling performance even in a marine area having a heavy fouling load by animal species such as barnacles, has excellent slime resistance, and is prevented from cracking. Further, the present invention is also to provide an antifouling coating film, a substrate with an antifouling coating film and a method of producing the substrate, and an antifouling method, each using the composition. The antifouling coating composition of the present invention contains a polyorganosiloxane block-containing hydrolyzable copolymer (A) and medetomidine (B), wherein the polyorganosiloxane block-containing hydrolyzable copolymer (A) contains (i) a constituent unit derived from a hydrolyzable group-containing monomer (a1) and (ii) a constituent unit derived from a polyorganosiloxane block-containing monomer (a2).
    Type: Application
    Filed: November 9, 2016
    Publication date: February 20, 2020
    Applicant: CHUGOKU MARINE PAINTS, LTD.
    Inventors: Jyunji NIIMOTO, Soichiro TANINO
  • Publication number: 20190330479
    Abstract: An object of the present invention is to provide an antifouling coating composition capable of forming an antifouling coating film that retains a high antifouling performance for a prolonged period of time and has an excellent damage resistance. Another object of the present invention is to provide an antifouling coating film formed with the antifouling coating composition, a substrate with an antifouling coating film and a method for producing the same, and an antifouling method using the antifouling coating film. The antifouling coating composition of the present invention contains a hydrolyzable polymer (A) containing a metal ester group, zinc oxide (B), and medetomidine (C), and has a content of the zinc oxide (B) in a solid content of the antifouling composition of 27 to 60% by mass.
    Type: Application
    Filed: November 15, 2016
    Publication date: October 31, 2019
    Applicant: CHUGOKU MARINE PAINTS, LTD.
    Inventors: Jyunji NIIMOTO, Yusuke HAYASHI, Satoshi MASUDA, Hideyuki TANAKA
  • Patent number: 10458898
    Abstract: The invention provides a method which predicts a ratio of the increase in frictional resistance of a rough surface in a simple manner, quickly and without variations in predicted results among individuals. The method for predicting the frictional resistance of a rough surface having a variation in roughness wavelength, and being in contact with a fluid flowing at varied velocities includes evaluating the total projected area of all prominent peaks standing out above the viscous sublayer thickness per unit area, and calculating the friction increase ratio FIR (%) or the frictional resistance increase ??.
    Type: Grant
    Filed: January 29, 2016
    Date of Patent: October 29, 2019
    Assignee: CHUGOKU MARINE PAINTS, LTD.
    Inventor: Hirohisa Mieno
  • Publication number: 20190256721
    Abstract: An object of the present invention is to provide an antifouling coating composition capable of forming an antifouling coating film that continuously has a high antifouling performance against aquatic organisms, such as barnacles and slimes, even in the case where the antifouling coating film is exposed to a high-speed water flow for a prolonged period of time. Another object thereof is to provide an antifouling coating film formed with the antifouling coating composition, a substrate with an antifouling coating film and a method for producing the same, and an antifouling method using the antifouling coating film. The antifouling coating composition of the present invention contains a hydrolyzable polymer (A) containing a metal ester group, cuprous oxide (B), a copper pyrithione (C), and medetomidine (D).
    Type: Application
    Filed: November 15, 2016
    Publication date: August 22, 2019
    Applicant: CHUGOKU MARINE PAINTS, LTD.
    Inventors: Soichiro TANINO, Yusuke HAYASHI
  • Publication number: 20190162530
    Abstract: A three-dimensional surface roughness evaluating device wherein a two-dimensional laser displacement meter is disposed so that the width direction of the two-dimensional laser displacement meter coincides with a Y-axis direction, to be able to measure displacement data of coordinates in the Y-axis direction at fixed intervals, the measuring width of the two-dimensional laser displacement meter is at least two or more times mean width of the roughness profile elements RSm of elements of a measurement target, and a calculating device is configured to generate reference surface data of each coordinate by averaging in the Y-axis direction the displacement data acquired at fixed intervals in the X-axis direction by the two-dimensional laser displacement meter, and generate three-dimensional surface roughness data of the measurement target by subtracting the reference surface data of each coordinate from the displacement data of each X-Y plane coordinate.
    Type: Application
    Filed: July 24, 2017
    Publication date: May 30, 2019
    Applicant: CHUGOKU MARINE PAINTS, LTD.
    Inventor: Hirohisa MIENO
  • Patent number: 10273366
    Abstract: An anticorrosive coating composition is provided which is excellent in adhesion to a substrate and in anticorrosiveness, and which provides a coating film whose surfaces hardly have bubbles remaining thereon even when the coating composition is applied by using a brush or a roller. The anticorrosive coating composition includes an epoxy resin (a), a curing agent (b) and a poly-?-olefin (c) that includes a structural unit derived from an ?-olefin having 6 or more carbon atoms.
    Type: Grant
    Filed: August 21, 2014
    Date of Patent: April 30, 2019
    Assignee: CHUGOKU MARINE PAINTS, LTD.
    Inventors: Takahiro Nishiguchi, Tomohisa Sumida, Shingo Wakisaka
  • Publication number: 20190085177
    Abstract: The present invention relates to a coating composition, a primer coating film, a layered antifouling coating film, a method of producing a substrate with a primer coating film, and a method of producing a substrate with a layered antifouling coating film. The coating composition includes an epoxy resin (A), an amine curing agent (B), a silane coupling agent (C), water (D), and a pigment (E). In the coating composition, the content of the water (D) is 3.5 to 11 parts by weight with respect to 100 parts by weight of non-volatile content in the coating composition, and a pigment volume concentration of the coating composition is 37 to 47%.
    Type: Application
    Filed: March 15, 2017
    Publication date: March 21, 2019
    Applicant: CHUGOKU MARINE PAINTS, LTD.
    Inventor: Jyunji NIIMOTO
  • Patent number: 10221332
    Abstract: Provided is a two-component-type primer having good adhesive property with a base material, particularly a nonferrous metal, and excellent curability, without containing any chromium compound. The two-component-type primer comprises an epoxy resin, an MXDA (meta-xylenediamine) Mannich modified curing agent, a gypsum (excluding crystal gypsum), and a pigment (excluding gypsum), wherein the volume concentration of a gypsum and a pigment in a dry coating film formed with the primer is 40 to 50%.
    Type: Grant
    Filed: January 31, 2014
    Date of Patent: March 5, 2019
    Assignee: CHUGOKU MARINE PAINTS, LTD.
    Inventor: Jyunji Niimoto
  • Patent number: 10145781
    Abstract: A method of estimating a frictional resistance of a ship bottom coating film, the method including measuring any one of Rz (maximum height roughness), Rc (mean height of roughness profile elements), Ra (arithmetic mean roughness), Rq (root mean square roughness) and RZJIS (ten-point mean roughness) as a roughness height R in a mean length RSm of roughness profile elements in the range of 2,000 to 10,000 ?m according to JIS B 0601:2001 (ISO4287:1997) on a coating film formed by applying a ship bottom coating paint on a substrate and calculating a frictional resistance increase rate FIR (%) from a mirror surface by the following formula (1), wherein coefficient C is a constant depending on the kind of the roughness height R and a frictional resistance testing method, and is previously determined in such a manner that plural ship bottom coating films each having different roughness are subjected to a roughness measurement and a frictional resistance test in a definite evaluation length, and then the coefficient
    Type: Grant
    Filed: March 4, 2013
    Date of Patent: December 4, 2018
    Assignee: CHUGOKU MARINE PAINTS, LTD.
    Inventor: Hirohisa Mieno
  • Patent number: 9976040
    Abstract: Provided is a silyl polymer-based antifouling coating composition that is capable of forming a coating film in which cracking is inhibited from occurring for a long period from the early stage of immersion in seawater and fresh water and enables to maintain excellent coating film consumption for a long term. The antifouling coating composition includes: a copolymer (A) containing a structural unit (a-1) derived from styrene or the like, a structural unit (a-2) derived from glycidyl (meth)acrylate, and optionally a structural unit (a-3) derived from another ethylenically unsaturated monomer; a polymer (B) containing a structural unit (b-1) derived from a monomer represented by the following Formula (b1): wherein X is a hydrogen atom or a carboxyl group; R1 is a hydrogen atom or a methyl group; R2 to R6, which may be the same as or different from each other, are C1-C6 straight or branched chain alkyl; and n is an integer of 0 or 1 or more; and an antifoulant.
    Type: Grant
    Filed: April 22, 2014
    Date of Patent: May 22, 2018
    Assignee: CHUGOKU MARINE PAINTS, LTD.
    Inventors: Kenji Yamamoto, Junnai Ikadai, Hideyuki Tanaka
  • Patent number: 9969892
    Abstract: The present invention relates to an antifouling coating composition, an antifouling coating film, a substrate with an antifouling coating film and a production process for the substrate. The antifouling coating composition includes a hydrolyzable polymer (A) having a structural unit represented by the following formula (1) and having a weight-average molecular weight of 1000 to 5000 and an antifouling agent (B) including (b1) 4-bromo-2-(4-chlorophenyl)-5-(trifluoromethyl)-1H-pyrrole-3-carbonitrile, and has a volatile organic compound (VOC) content of not more than 400 g/L. [In the formula (1), M represents zinc or copper, and R1 independently represents a hydrogen atom or a methyl group.
    Type: Grant
    Filed: May 21, 2014
    Date of Patent: May 15, 2018
    Assignee: CHUGOKU MARINE PAINTS, LTD.
    Inventors: Satoshi Masuda, Yusuke Hayashi