Back to results
US 5,476,692 AGranted
Method of strengthening glass
AssigneeBritish Technology Group Limited
InventorsBryan Ellis, Xiao M. Chen, Angela B. Seddon
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeBritish Technology Group Limited
InventorsBryan Ellis, Xiao M. Chen, Angela B. Seddon
Estimating the term…
A method of strengthening glass using a mixture of a silane and a resin, the mixture being applied to the glass surface as an aqueous emulsion which is then cured. The silane is a reaction product of a silane coupling agent, which contains an epoxy group, with an unsaturated carboxylic acid, and the resin is a resin having at least two polymerisable unsaturated groups in the molecule. Preferably the silane and the resin have unsaturated reactive groups of matched reactivity. Advantageously the mixture contains about 20 parts of the silane per hundred parts of the resin. In another embodiment a silane coupling agent is dissolved in a polymerisable resin, the mixture of silane and resin is emulsified in water, the emulsion being applied as a coating, which is then cured.
A method of strengthening glass by applying to a surface of the glass a coating of a mixture of a silane and a resin containing at least two polymerisable unsaturated groups in the molecule, the resin being a reaction product of an epoxy resin with an unsaturated carboxylic acid, and then curing the coating, wherein the silane is a reaction product of a silane coupling agent, which contains an epoxy group, with an at least stoichiometric quantity of an unsaturated carboxylic acid reacting with said epoxy group, wherein the silane has an unsaturated reactive group with a reactivity similar to the reactivity of the polymerisable groups of the resin, and the mixture of the silane and the resin is applied to the surface of the glass as an aqueous emulsion;
A method of strengthening a glass container by applying to an outer surface of the glass container an aqueous emulsion coating comprising a mixture of an acrylic-modified epoxy resin containing at least two polymerisable unsaturated groups in the molecule and a silane which is a reaction product of an epoxytrialkoxyl silane with an unsaturated carboxylic acid, the silane being present in an amount from 5 to 40 parts per hundred of the resin, and curing the coating.
Dependencies are inferred from the claim text.