Patent ID: 8710126

Claim:
A method of reducing at least one of corrosion of a metal part and deposition of a flame retardant on a surface of a metal part, said method comprising: shaping a thermoplastic matrix comprising at least one phosphinic acid salt of formula (I): in which: R 1 and R 2 , which may be identical or different, are each a linear or branched alkyl radical having from 1 to 6 carbon atoms, and/or an aryl radical; M is a calcium, magnesium, aluminum and/or zinc ion; and Z is 2 or 3, by a plastic conversion or forming technique selected from the group consisting of extrusion, molding and injection, thereby obtaining a thermoplastic shaped part in a solid state; and placing said thermoplastic part in a solid state in contact with, or within approximately 1 cm of said metal part in a solid state.