Mirror
AssigneeGlaverbel
InventorsMuriel Tournay, Georges Pilloy
Life of this patent
Estimating the term…
Abstract
Mirror having an epoxy paint layer covering a silver layer have at least one of the following properties: (a) a scratch resistance determined by the Clemen test showing scratches of less than 10 μm when applying a weight of 1500 g; (b) a hardness determined by the Persoz pendulum of at least 250 s; (c) a commercially acceptable resistance to at least one glue selected from the group consisting of oxime, alcoxy, MS polymer and rubber. The mirrors have good resistance to handling.
Claims33
1-2. (canceled)
A mirror which comprises:
- a glass substrate;
- a silver coating layer on a surface of the glass substrate;
- and
- an exposed paint layer overlaying the silver coating layer, this paint layer being an epoxy paint layer;
- the mirror having at least one of the following properties:
- (a) a scratch resistance determined by the Clemen test showing scratches of less than 10 μm when applying a weight of 1500 g;
- (b) a hardness determined by the Persoz pendulum of at least 250 s;
- (c) a commercially acceptable resistance to at least one glue selected from the group consisting of an oxime, an alcoxy, a MS polymer and a rubber glue.
A mirror with no copper layer which consists essentially of, in the order recited:
- a substrate in the form of a flat, soda lime glass sheet having a surface,
- palladium and tin provided at said surface of the glass sheet,
- a silver coating layer on said surface of the glass sheet,
- tin present at the surface of the silver coating layer,
- a single, exposed paint layer covering the silver coating layer, this paint layer being an epoxy paint layer;
- the mirror having all of the following properties:
- (a) a scratch resistance determined by the Clemen test showing scratches of less than 10 μm when applying a weight of 1500 g;
- (b) a hardness determined by the Persoz pendulum of at least 250 s;
- (c) a commercially acceptable resistance to at least three glues selected from the group consisting of an oxime, an alcoxy, a MS polymer and a rubber glue;
- (d) an average edge corrosion of less that 200μ when subjected to a 120 hour CASS test.
A process for manufacturing a mirror with no copper layer which comprises the following steps:
- providing a glass substrate;
- sensitising the glass substrate by contacting it with a solution comprising ions of tin;
- activating the glass substrate by contacting it with a solution comprising ions of at least one material selected from the group consisting of bismuth, chromium, gold, indium, nickel, palladium, platinum, rhodium, ruthenium, titanium, vanadium, tin and zinc;
- contacting the glass substrate with a silvering solution so as to form a silver coating;
- and
- applying at least one epoxy paint layer over the silvered substrate.
A mirror with no copper layer which comprises:
- a glass substrate;
- at least one of
- (i) palladium provided at a surface of the glass substrate;
- (ii) at least one material selected from the group consisting of bismuth, chromium, gold, indium, nickel, platinum, rhodium, ruthenium, titanium, vanadium and zinc provided at a surface of the glass substrate;
- a silver coating layer on said surface of the glass substrate;
- and
- an exposed paint layer overlaying the silver coating layer, this paint layer being an epoxy paint layer;
- the mirror having at least one of the following properties:
- (a) a scratch resistance determined by the Clemen test showing scratches of less than 10 μm when applying a weight of 1500 g;
- (b) a hardness determined by the Persoz pendulum of at least 250 s;
- (c) a commercially acceptable resistance to at least one glue selected from the group consisting of an oxime, an alcoxy, a MS polymer and a rubber glue.
Dependencies are inferred from the claim text.