Patents Assigned to Chugoku Marine Paints, Ltd.
  • Publication number: 20240018368
    Abstract: Provided is a surface-protective coating composition capable of forming a surface-protective coating film in which the occurrence of cracks is suppressed during the formation of the coating film, while using a polymer having marine biodegradability. Also provided are: a surface-protective coating film formed from the surface-protective coating composition; a substrate with a surface-protective coating film, which is coated with the surface-protective coating film, and a method of producing the same; and a surface protection method using the surface-protective coating film. The surface-protective coating composition according to the present invention contains a polycaprolactone-based polymer (A) and a zinc oxide (B), wherein the polycaprolactone-based polymer (A) has an acid value of 5 mgKOH/g or more and 200 mgKOH/g or less, and a structural unit derived from caprolactone in the polycaprolactone-based polymer (A) has a content of 50% by mass or more and 99.5% by mass or less.
    Type: Application
    Filed: September 22, 2021
    Publication date: January 18, 2024
    Applicant: CHUGOKU MARINE PAINTS, LTD.
    Inventors: Soichiro TANINO, Junnai IKADAI, Yoshihiko IMAI, Akino NABE, Masamitsu OKADA
  • Publication number: 20240002677
    Abstract: An object of the present invention is to provide an antifouling coating composition that can form an antifouling coating film having excellent adhesion to a base (substrate) even in a low-temperature environment, as well as excellent antifouling property. Another object of the present invention is to provide an antifouling coating film, a laminated antifouling coating film, an antifouling tape, a substrate with the antifouling coating film, and a method of producing the same formed from the antifouling coating composition, as well as an antifouling method. The antifouling coating composition of the present invention is an antifouling coating composition containing a photocurable organopolysiloxane (A), a slipping agent (B), and a photopolymerization initiator (C), the content of the photocurable organopolysiloxane (A) in the solid content of the antifouling coating composition being 50% by mass or more and 98% by mass or less.
    Type: Application
    Filed: September 17, 2021
    Publication date: January 4, 2024
    Applicant: CHUGOKU MARINE PAINTS, LTD.
    Inventor: Soichiro TANINO
  • Publication number: 20230383128
    Abstract: An antifouling coating composition contains a silyl ester polymer, at least one rosin compound selected from rosin and rosin derivatives, a poly(vinyl alcohol) resin, and water. A method for producing an antifouling substrate, includes subjecting a substrate to application of or impregnation with the antifouling coating composition to provide an applied body or an impregnated body, and drying the applied body or the impregnated body.
    Type: Application
    Filed: May 27, 2023
    Publication date: November 30, 2023
    Applicant: CHUGOKU MARINE PAINTS, LTD.
    Inventors: SHOTARO HARADA, Junnai IKADAI
  • Publication number: 20230348751
    Abstract: An embodiment of the present invention relates to a coating composition, a coating film, a substrate with a coating film, or a production method therefor. This coating composition includes an epoxy resin (A), a silicone resin (B), aluminum (C), and an amine curing agent (D).
    Type: Application
    Filed: August 23, 2021
    Publication date: November 2, 2023
    Applicant: CHUGOKU MARINE PAINTS, LTD.
    Inventor: Shinsho KODAMA
  • Publication number: 20230340292
    Abstract: A low-VOC coating composition, a coating film, a substrate with a coating film, or a method its production, may include a low-VOC coating composition substantially free of benzyl alcohol. The low-VOC coating composition may include: a bisphenol epoxy compound (A) having an epoxy equivalent of 200 or less; a liquid amine curing agent (B); and a dioxolane derivative (C) of formula (1): wherein R1 and R2 are each independently H, an alkyl group, an alkenyl group, or a phenyl group, and n is 1, 2, 3, 4, or 5.
    Type: Application
    Filed: August 23, 2021
    Publication date: October 26, 2023
    Applicant: CHUGOKU MARINE PAINTS, LTD.
    Inventors: Masamitsu OKADA, Jyunji NIIMOTO
  • Publication number: 20230312904
    Abstract: An object of the present invention is to provide a photocurable resin composition capable of forming a cured film having an excellent smoothness, adhesion, transparency, abrasion resistance, scratch resistance, crack resistance and weather resistance.
    Type: Application
    Filed: July 29, 2021
    Publication date: October 5, 2023
    Applicant: CHUGOKU MARINE PAINTS, LTD.
    Inventors: Kenji MIYAKUBO, Yumiko ATSUJI, Yoshinori KAMEDA
  • Publication number: 20230123769
    Abstract: An antifouling coating composition, an antifouling coating film, a substrate with an antifouling coating film or a method for producing the same, an antifouling method for a substrate, or a method for repairing a substrate with an antifouling coating film. The antifouling coating composition includes a hydrolyzable copolymer (A) containing an organosiloxane block and a metal ester group, and zinc oxide (B). The copolymer (A) contains 5 to 25% by mass of a constituent unit derived from a metal ester group-containing monomer, 5 to 15% by mass of a constituent unit derived from a monomer represented by formula (2), and a constituent unit derived from a monomer represented by formula (3).
    Type: Application
    Filed: March 9, 2021
    Publication date: April 20, 2023
    Applicant: CHUGOKU MARINE PAINTS, LTD.
    Inventors: Soichiro TANINO, Akino NABE, Yoshihiko IMAI
  • Patent number: 11555134
    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: Grant
    Filed: November 12, 2018
    Date of Patent: January 17, 2023
    Assignee: CHUGOKU MARINE PAINTS, LTD.
    Inventors: Hiroaki Murata, Keisuke Nakatani
  • 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