Method of treating metals using amino silanes and multi-silyl-functional silanes in admixture
AssigneeBrent International PLC
InventorsKevin Brown, Erwin Barry Bines, Jun Song, Nie Tang
Life of this patent
Estimating the term…
Abstract
The invention relates to a method of improving corrosion resistance of a metal. The method comprises applying a solution containing one or more amino silanes in admixture with one or more multi-silyl-functional silanes to a metal substrate in order to form a long term corrosion resistant coating. The method is particularly suitable for use on cold-rolled steel, zinc, iron, aluminium and aluminium alloy surfaces.
Claims32
A method of improving corrosion resistance of a metal substrate, comprising of the steps of:
- (a) providing a metal substrate, the said metal substrate chosen from the group consisting of:
- steel;
- steel coated with a metal chosen from the group consisting of:
- zinc, zinc alloy, aluminum and aluminum alloy;
- iron;
- zinc and zinc alloys;
- aluminum;
- and
- aluminum alloy;
- and
- (b) applying a long-term coating on the metal substrate by contacting the metal substrate with a solution containing one or more hydrolyzed or partially hydrolyzed amino silanes, one or more hydrolyzed or partially hydrolyzed multi-silyl-functional silanes and a solvent, the amino silanes and multi-silyl-functional silanes being present in a ratio of between 2:1 to 1:8, and substantially removing the solvent.
A method of improving corrosion resistance of a metal substrate, comprising the steps of:
- (a) providing a metal substrate, the said metal substrate chosen from the group consisting of:
- steel;
- steel coated with a metal chosen from the group consisting of:
- zinc, zinc alloy, aluminum and aluminum alloy;
- iron;
- zinc and zinc alloys;
- aluminum;
- and
- aluminum alloy;
- and
- (b) applying a solution to the metal substrate containing one or more hydrolyzed or partially hydrolyzed amino silanes, one or more hydrolyzed or partially hydrolyzed multi-silyl-functional silanes and a solvent wherein the amino silanes and multi-silyl-functional silanes are present in a ratio of between 2:1 to 1:8.
Dependencies are inferred from the claim text.