Coating composition based on fluorinated polymers, to be used as

Details Coating composition based on fluorinated polymers, to be used as Coating composition based on fluorinated polymers, to be used as

1990-04-16

1992-03-10

Schofer, Joseph L.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524414, 524417, 524434, 524436, C08K 332

Patent

active

050950649

ABSTRACT:
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.

REFERENCES:
patent: 2979418 (1961-04-01), Dipner
patent: 3931084 (1976-01-01), Buckley
patent: 3989873 (1976-11-01), Robertson

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