초록 ▼

The coated substrate product finds particular application in eyeglass and sunglass lenses, architectural glass, analytical instrument windows, automotive windshields and laser bar code scanners for use in retail stores and supermarkets. The product has greatly improved wear resistance for severe abr

The coated substrate product finds particular application in eyeglass and sunglass lenses, architectural glass, analytical instrument windows, automotive windshields and laser bar code scanners for use in retail stores and supermarkets. The product has greatly improved wear resistance for severe abrasive environments and comprises a substantially optically transparent substrate, one or more chemically vapor deposited interlayers bonded to the substrate and a chemically vapor deposited outer layer of optically transparent or substantially optically transparent hard and low friction material bonded to the interlayer and away from the substrate.

대표청구항 ▼

A chemical vapor deposition method for producing an abrasion wear resistant coated substrate product comprising: chemically de-greasing the surface of a parent substrate which is substantially optically transparent to light in the visible region of 350 to approximately 750 nanometers and which compr

A chemical vapor deposition method for producing an abrasion wear resistant coated substrate product comprising: chemically de-greasing the surface of a parent substrate which is substantially optically transparent to light in the visible region of 350 to approximately 750 nanometers and which comprises a material selected from the group consisting of an amorphous material, a single crystal, polycrystalline materials, glass, salt materials, ceramic materials and mixtures thereof to remove hydrocarbon contamination; placing said substrate into a chemical vapor deposition reactor vacuum chamber and evacuating the air from said chamber; sputter-etching the surface of said substrate with energetic gas ions to remove traces of residual hydrocarbon and to preferentially reduce the concentration of alkali metal atoms and alkali metal oxides at the substrate surface; chemically vapor depositing onto said substrate a composite layer comprising at least one interlayer which is substantially optically transparent to light in the visible region of 350 to approximately 750 nanometers, has a thickness in the range of about 1 m20 m350 to approximately 750 nanometers and is bonded to said composite layer and away from said substrate; cooling said coated substrate by extinguishing said deposition process and passing an inert gas over said substrate until the temperature of said substrate has reached substantially room temperature during said cool-down step; and recovering a coated substrate product exhibiting greatly improved wear resistance for severe abrasive environments.