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Method of forming a laminate

  • US 9,981,284 B2
  • Filed: 12/27/2012
  • Issued: 05/29/2018
  • Est. Priority Date: 12/28/2011
  • Status: Active Grant
First Claim
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1. A method of forming a laminate, the method comprising:

  • providing a metal substrate to which a layer of bronze particles is sintered;

    electrostatic spraying the metal substrate with a non-fluorinated thermoplastic powder comprising a ultra-high-molecular-weight polyethylene (UHMWPE), a polyimide (PI), a polyamide (PA), a polyamideimide (PAI), or any combination thereof, and covering the bronze particles with the non-fluorinated thermoplastic powder to form a transition layer; and

    spraying the transition layer with a fluorinated thermoplastic powder to form a compound layer, wherein the transition layer comprises PEEK, and wherein the fluorinated thermoplastic powder comprises polyvinylfluoride (PVF), polychlorotrifluoroethylene (PCTFE), a polyethylenechlorotrifluoroethylene (ECTFE), or any combination thereof.

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