Fastener tip coating

Patent metadata

Field	Value
Publication number	US-9725670-B2
Application number	US-201314031813-A
Country	US
Kind code	B2
Filing date	Sep 19, 2013
Priority date	Apr 17, 2009
Publication date	Aug 8, 2017
Grant date	Aug 8, 2017

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.

First claim

What is claimed is:

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.

Assignees

• Illinois Tool Works

Inventors

• Lat Geronimo E
• Shelton Lawrence S
• Birr Daniel P
• Wachowski Arthur C
• Chin Daniel V

Classifications

• C10M161/00 Primary

  Lubricating compositions characterised by the additive being a mixture of a macromolecular compound and a non-macromolecular compound, each of these compounds being essential · CPC title

• F16B33/06

  Surface treatment of parts furnished with screw-thread, e.g. for preventing seizure {or fretting (corrosion preventing means F16B33/008; settable coatings for locking threaded members F16B39/225; deformable coatings for locking threaded members F16B39/34)} · CPC title

• F16B2001/0021

  Mechanical Engineering · mapped topic

• F16B15/0092 Primary

  Coated nails or staples · CPC title

• F16B2200/79

  Friction-reducing coatings · CPC title