Aqueous coating composition

{
  "publication_number": "US8569413B2",
  "country": "US",
  "kind": "B2",
  "title": "Aqueous coating composition",
  "abstract": "An aqueous coating composition having excellent coating adhesion, workability, heat resistance and chemical resistance, and has an object to provide an aqueous coating composition for sealing, which is suitable for members to be screwed in. An aqueous coating composition including: as main components, component (A) an ethylene-vinyl acetate copolymer resin emulsion and component (B) two or more PTFE resin powders having different particle diameters, in which 35 to 80 parts by mass of water is contained on the basis of 100 parts by mass of the total of (A) and (B).",
  "claims": [
    "1. An aqueous coating composition comprising: the following components (A) and (B) as main components, wherein 35 to 80 parts by mass of water is contained based on 100 parts by mass of the total of components (A) and (B): Component (A): an ethylene-vinyl acetate copolymer resin emulsion; Component (B): two or more PTFE resin powders having different particle diameters, wherein the powders have a predetermined particle diameter range, wherein component (B) includes (b-1) a PTFE resin powder having an average particle diameter of 2 to 20 μm and (b-2) a PTFE resin powder having an average particle diameter of 20 to 100 μm, and wherein a mass ratio (b-1):(b-2) of (b-1) and (b-2) in component (B) is 5 to 35: 95 to 65.",
    "2. The aqueous coating composition according to claim 1, wherein a mass ratio (A)/(B) of a solid of component (A) and component (B) is 0.03 to 0.40.",
    "3. The aqueous coating composition according to claim 1, further comprising: (C) 0.0005 to 1.0 parts by mass of sodium polyacrylate on the basis of 100 parts by mass of the total of components (A) and (B).",
    "4. The aqueous coating composition according to claim 1, wherein component (A) has a viscosity of 1000 to 5500 mPa·s.",
    "5. A member of which a surface is coated by the aqueous coating composition according to claim 1.",
    "6. The member according to claim 5, wherein the member is a screwed member."
  ],
  "description_excerpt": "The present invention relates to an aqueous coating agent used in coating metal or plastic, and particularly, relates to an aqueous coating composition having excellent coating adhesion, workability in forming a coating film, and oil resistance of the coating film at a high temperature. More particularly, the present invention relates to an aqueous coating composition for sealing, which is coated in order to seal various oils, gases, and water.\n\nA liquid resin composition has been used for various purposes of a paint, ink, an adhesive, a sealing agent, and a coating agent. The liquid resin composition may be largely classified into a reactive resin composition and a non-reactive resin composition. The reactive resin composition uses a reactive resin such as an epoxy resin, an acryl resin, or a silicone resin as a binder component, and various curing agents, crosslinking agents, reaction initiators, and catalysts are added to solidify and cure the resin at a predetermined timing. Therefore, since various raw components may be combined with each other for the use, the degree of freedom of design was high. Meanwhile, since solidification and curing of the binder component are caused by a chemical reaction, there were some problems in preservation, workability, safety, and an environmental load. The non-reactive resin composition implements its function by using, as a binder component, the non reactive resin which is not solidified and cured by a chemical reaction, and solidifying the resin mainly by solvent vaporization. Accordingly, the preserving property, workability, and safety are generally good.",
  "cpc": [
    "C09D 123/0853",
    "C08L 2205/02",
    "C08L 2205/22",
    "C08L 23/0853",
    "C08L 25/14",
    "C08L 27/18",
    "C08L 33/06",
    "C09D 127/18",
    "C09D 5/02",
    "C09D 7/65",
    "C09D 7/69",
    "F16B 33/004",
    "Y10T 428/31544",
    "Y10T 428/31699"
  ],
  "ipc": [
    "B32B 27/00",
    "C08L 27/00",
    "C08L 27/12",
    "C08L 31/04",
    "C09D 7/65"
  ],
  "assignees": [
    "KANAZAWA HIDENORI",
    "SATOU NAOKI",
    "THREE BOND CO LTD"
  ],
  "inventors": [
    "KANAZAWA HIDENORI",
    "SATOU NAOKI"
  ],
  "filing_date": "2009-10-29",
  "publication_date": "2013-10-29",
  "grant_date": "2013-10-29",
  "priority_date": "2008-10-31",
  "application_number": "US-200913126808-A",
  "family_id": "42128931",
  "citations": [
    "CN1886479A",
    "JP2006104484A",
    "JP2007031559A",
    "JPH02308876A",
    "JPH0341144A",
    "JPH05286086A",
    "JPH07179737A",
    "JPH07179787A",
    "JPS5429866A",
    "US4243565A",
    "US4400487A",
    "US5300366A",
    "WO2005054390A1"
  ]
}