Ausimont S.p.a.

Alberto Fonte

Angelo Tentorio

Mario Visca

Daria Lenti

A composition suitable to form coating films on metal substrates, in particular acting as a primer, comprising an aqueous dispersion of a tetrafluoroethylene polymer and/or copolymer, containing phosphate ions and other anions of mineral acids and furthermore Mg and/or Mn in the form of divalent cations, the phosphate anion amount being such that, expressed as phosphorus/dry polymer weight ratio, it ranges from 0.005 to 0.15, and the amount of Mg ions and/or Mn ions being such that the Mg+Mn/P ratio expressed in atoms ranges from 0.1 to 2.

Coating composition based on fluorinated polymers, to be used as a primer

Composition on the basis of fluorinated polymers in aqueous dispersion, having a basic pH, containing alkoxysylanes and magnesium and/or aluminum as cations complexed with amino- or hydroxy-carboxy acids, acting as bonding agents, suitable to constitute a highly-adhesive layer, on metal surfaces, in particular as a primer.

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Pavia, Italy

Alberto Fonte