COATING COMPOSITION BASED ON FLUORINATED POLYMERS, TO BE USED AS A PRIMER
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 cat...
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Main Authors | , , |
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Format | Patent |
Language | English French |
Published |
27.07.1993
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Edition | 5 |
Subjects | |
Online Access | Get full text |
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Summary: | 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. |
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Bibliography: | Application Number: CA19870546951 |