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US 6,586,502 B2Granted
Inorganic/organic compositions
AssigneeDow Global Technologies LLC
InventorsPenny Jo Wallace, Yi-Hung Chiao, Donald L. Schmidt, Tao Sun, Marc Stephen Hirsch, Nicholas P. Sheridan
Life of this patent
Estimating the term…
Abstract
Compositions comprising inorganic particles or inorganic-organic particles, a non-hydrogen Lewis Acid, and an epoxy group-containing silicon compound, articles coated with the cured composition to provide scratch and abrasion resistance.
Claims66
An aqueous solution of a coatable composition for preparing a hard coating comprising:
- (a) water;
- (b) at least one dispersion of particles in a dispersion medium, said particles selected from the group consisting of inorganic particles and inorganic-organic composite particles, said particles having a size of from about 1 nanometer to about 100 nanometers;
- (c) at least one inorganic non-hydrogen Lewis Acid different from the particles of component (b);
- and
- (d) at least one epoxy group-containing silicon compound;
- said dispersion of particles being present in said composition such that said composition contains from about 1 to about 50 weight percent of said particles in the total weight of said composition;
- said non-hydrogen Lewis Acid being present in said composition such that said composition contains from about 0.1 to about 30 weight percent of said non-hydrogen Lewis Acid in the total weight of said composition;
- and
- said epoxy group-containing silicon compound being present in said composition such that said composition contains from about 1 to about 50 weight percent of said epoxy group-containing silicon in the total weight of said composition.
6 more elements
A coated article coated with a hard coating produced by the steps of
- (i) mixing
- (a) water;
- (b) at least one dispersion of particles in a dispersion medium, said particles selected from the group consisting of inorganic particles and inorganic-organic composite particles, said particles having a size of from about 1 nanometer to about 100 nanometers;
- (c) at least one inorganic non-hydrogen Lewis Acid different from the particles of component (b);
- and
- (d) at least one epoxy group-containing silicon compound to form a composition mixture;
- said dispersion being present in said composition such that said composition contains from about 1 to about 50 weight percent of said particles in the total weight of said composition;
- said non-hydrogen Lewis Acid being present in said composition such that said composition contains from about 0.1 to about 30 weight percent of the total weight of said non-hydrogen Lewis Acid in said composition;
- and said epoxy group-containing silicon compound being present in said composition such that said composition contains from about 1 to about 50 weight percent of said epoxy group-containing silicon the total weight of said composition;
- (ii) applying said composition mixture to at least one surface of a substrate to be coated;
- and
- (iii) curing said composition mixture to form an abrasion resistant coating on said substrate.
9 more elements
A cured composition produced by the process which comprises the steps of
- (i) mixing together
- (a) water;
- (b) at least one dispersion of particles in a dispersion medium, said particles selected from the group consisting of inorganic particles and inorganic-organic composite particles, mixture, said particles having a size of from about 1 nanometer to about 100 nanometers;
- (c) at least one inorganic non-hydrogen Lewis different from the particles of component (b);
- and
- (d) at least one epoxy group-containing silicon compound, to form a composition mixture;
- said dispersion substantially uniformly distributed in the composition mixture and
- (ii) curing said composition mixture to form an abrasion resistant cured composition.
5 more elements
Dependencies are inferred from the claim text.