Non-aqueous coating compositions formed from silanes and metal alcoholates
OwnerJohn B. Schuttinventor
Life of this patent
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Abstract
A non-aqueous coating composition is obtained by mixing (A) at least one silane, such as phenyltrimethoxysilane, methyltrimethoxysilane; and (B) vinyltriacetoxy silane and/or colloidal aluminum hydroxide and/or at least one metal alcoholate. Optional additives include ethyl orthosilicate, ethyl polysilicate or colloidal silica in a lower alkanol and boric acid, which may be dissolved in a lower alkanol. Hard corrosion resistant coatings, which are substantially transparent, are obtained. These coatings may be applied to metallic or non-metallic surfaces.
Claims48
A non-aqueous coating composition, useful for coating of concrete, metal and non-metallic substrates, formed by admixing
- (A) at least one silane of formula (1)
- R1nSi(OR2)4−n (1)
- wherein R1 represents a lower alkyl group, an aryl group or a functional group containing at least one of vinyl, acrylic, amino, mercapto, or vinyl chloride functional groups;
- R2 represents a lower alkyl group;
- and,
- n is a number of 1 to 2;
- and
- (B) at least one compound selected from the group consisting of
- a. vinyltriacetoxysilane and/or
- b. colloidal aluminum hydroxide and/or
- c. at least one metal alcoholate of formula (2)
- M(OR3)m (2)
- wherein M represents a metal of valence m,
- R3 represents a lower alkyl group, and
- m is a number of 2 to 4.
Dependencies are inferred from the claim text.