Thin films of metal phosphates and the method of their formation

Details Thin films of metal phosphates and the method of their formation Thin films of metal phosphates and the method of their formation

1991-09-19

1993-04-13

Robinson, Ellis P.

Stock material or miscellaneous articles

Structurally defined web or sheet

Continuous and nonuniform or irregular surface on layer or...

428141, 428336, 428428, 428432, 428446, 428469, 428697, 428699, 428701, 428704, B32B 3300

Patent

active

052021750

ABSTRACT:
The invention is generally accomplished by mixing non-phosphorous containing metal resinates and phosphorous resinates, forming a coating of the mixture on a substrate and heating the mixture to recover a thin film coating of metal phosphate. The metal resinates and phosphorous resinates are defined as metal-ligand compounds where the ligand is thermally separable. The preferred ligands are carboxylates, alcoholates, and acetylacetonates. The heating decomposes the metal phosphate precursor coating materials to yield a metal phosphate. The phosphorous resinate may comprise an alkyl phosphate, arylphosphate, or a carboxylate substituted alkyl or aryl phosphate. The substituting carboxylic acids may be pure, such as 2-ethylhexanoic acid, mixtures of acids, such as neodecanoic acid, and naturally occurring acids, such as rosin (abietic acid). The metal resinate may be a metal carboxylate, a carboxylate substituted alkoxide, or carboxylate substituted acetylacetonate. Typical metals are the alkali metals, alkaline earths, titanium, zirconium, and aluminum.

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