Fastener tip coating

{
  "publication_number": "US9725670B2",
  "country": "US",
  "kind": "B2",
  "title": "Fastener tip coating",
  "abstract": "An ease of drive coating for a fastener is formulated from a resin having at least two different friction reducing components, such as silicone and graphite. A fastener and fastener strip include a resin formulation with at last two different friction reducing components.",
  "claims": [
    "1. A method for easing the drive of a fastener into a substrate, comprising: coating the fastener, at least at the tip, with a coating formulated from a resin modified with at least two different friction reducing components, wherein the resin is an acrylic resin, and wherein the coating is a formulation of an amine salt of modified acrylic copolymers present in a concentration of about 0 percent to about 10.0 percent by weight of the coating, an ammonia salt of modified styrene acrylic polymers present in a concentration of about 15.0 percent to about 25.0 percent by weight of the coating, water present in a concentration of about 60.0 percent to about 70.0 percent by weight of the coating, one or more of glycol ethers present in a concentration of about 0 percent to about 10.0 percent by weight of the coating, surfactants present in a concentration of about 0 percent to about 5.0 percent by weight of the coating, a pigment present in a concentration of about 0 percent to about 5.0 percent by weight of the coating, ammonium hydroxide present in a concentration of about 0 percent to about 1.0 percent by weight of the coating and a rust inhibitor present in a concentration of about 0 percent to about 1.0 percent by weight of the coating.",
    "2. The method of claim 1 wherein one of the friction reducing components is silicone.",
    "3. The method of claim 1 wherein one of the friction reducing components is graphite.",
    "4. The method of claim 1 wherein one of the friction reducing components is silicone and the other of the friction reducing components is graphite, and wherein the silicone is present in a concentration of about 0.12 percent to about 2.8 percent by weight of the coating and the graphite is present in a concentration of about 0.5 percent to about 5.0 percent by weight of the coating.",
    "5. A method for easing the drive of a fastener into a substrate, comprising: coating the fastener, at least at the tip, with a coating formulated from a resin modified with at least two different friction reducing components mixed with the resin, the resin being a formulation of an amine salt of modified acrylic copolymers present in a concentration of about 0 percent to about 10.0 percent by weight of the coating, an ammonia salt of modified styrene acrylic polymers present in a concentration of about 15.0 percent to about 25.0 percent by weight of the coating and water present in a concentration of about 60.0 percent to about 70.0 percent by weight of the coating, wherein one of the friction reducing components is silicone."
  ],
  "description_excerpt": "The present invention relates to fastener coatings. More particularly, the present invention relates to chemistry for fastener tip coatings for ease of drive.\n\nPowered drivers are used to drive fasteners in today's construction industries. In the home construction industry, use of engineered lumber, such as laminated veneer lumber (LVL), is on the rise. LVL is a very hard material and as such is a difficult material into which to power drive a fastener, such as a nail. Powered nailers (combustion, cordless, and the like) have to be sufficiently powerful to drive nails into these materials. This is exaggerated by the use of longer nails, which use is on the rise for improved construction quality and in order to meet building code requirements.\n\nCoated fasteners (e.g., nails) are known and these coated nails do in fact provide ease of driving for powered nailers. However, the power required to drive nails is still high and in the case of cordless nailers, tool power is reduced with increased tool temperature which results in incomplete nail drive - that is, the nail remains standing above the surface of the substrate.\n\nAccordingly, there is a need for a tip coating chemistry that further reduces the force needed to drive a fastener, such as a nail, into a substrate. Desirably, such a coating does not adversely effect the holding power of the fastener.\n\nAn ease of drive coating for a fastener is formulated from a resin, such as an acrylic resin, preferably a number of (e.g., two) resins.",
  "cpc": [
    "C10M 161/00",
    "F16B 15/0092",
    "F16B 2001/0021",
    "F16B 2200/79",
    "F16B 33/06"
  ],
  "ipc": [
    "C10M 161/00",
    "F16B 1/00",
    "F16B 15/00",
    "F16B 33/06"
  ],
  "assignees": [
    "Illinois Tool Works Inc"
  ],
  "inventors": [
    "Geronimo E. Lat",
    "Lawrence S. Shelton",
    "Daniel P. Birr",
    "Arthur C. Wachowski",
    "Daniel V. Chin"
  ],
  "filing_date": "2013-09-19",
  "publication_date": "2017-08-08",
  "grant_date": "2017-08-08",
  "priority_date": "2009-04-17",
  "application_number": "US-201314031813-A",
  "family_id": "42981083",
  "cited_by_count": 0,
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