Providing organic paint on glass to match automotive body color
AssigneeVisteon Global Technologies, Inc.
InventorPremakaran Tucker Boaz
Life of this patent
Estimating the term…
Abstract
A process for adhering a layer of organic paint to the surface of a glass sheet, and the products produced thereby. The process comprises applying a layer of a water-based silicate paint to the surface of the glass sheet, heating to cure the paint, forming the glass sheet into a shape, sensitizing the water based paint with a layer of silane material, applying a layer of organic paint over the layer of sensitized water-based silicate paint, and curing the organic paint to provide organic paint adhered to the glass surface.
Claims21
A process for adhering a layer of organic paint to the surface of a glass sheet, the process comprising the steps of:
- A) applying, to at least a portion of a surface of a glass sheet a layer, a water-based paint composition, comprising:
- (i) water-soluble sodium silicate forming 20 to 45 weight percent of said composition,
- (ii) water forming 5 to 25 weight percent of said composition;
- (iii) water-soluble base in an amount sufficient to provide said composition with a pH of at least 10.5;
- (iv) finely divided metal oxide powder selected from the group consisting of oxides of copper, iron, nickel, cobalt and mixtures thereof forming 20 to 45 weight percent of said composition and having a particle size, on average, less than 7 microns;
- (v) particles of soda-lime-silica glass forming 3 to 55 weight percent of the composition and having a diameter, on average, less than 20 microns and having a melting point of at least about 1700° F.;
- and at least one material selected from the group consisting of:
- (vi) low-melting glass frit powder melting below 1300° F. forming up to 20 weight percent of said composition and having a particle size, on average, less than 10 microns;
- and
- (vii) zinc oxide forming up to 10 weight percent of said composition.
- B) heating the glass sheet to cure the water based paint;
- C) forming the coated glass sheet into a shape;
- D) applying a coating of sensitizing material comprising silane to the surface of the water based paint on the glass;
- E) applying a layer of an organic paint over the layer of sensitized water-based paint;
- and
- F) curing the layer of organic paint to form a glass sheet with the organic paint bonded thereto.
A glass sheet painted with an organic paint comprising:
- A) a sheet of glass having a surface;
- B) a layer of water-based paint adhered to the surface of the glass sheet the water based paint comprising:
- (i) water-soluble sodium silicate forming 20 to 45 weight percent of said composition,
- (ii) water forming 5 to 25 weight percent of said composition;
- (iii) water-soluble base in an amount sufficient to provide said composition with a pH of at least 10.5;
- (iv) finely divided metal oxide powder selected from the group consisting of oxides of copper, iron, nickel, cobalt and mixtures thereof forming 20 to 45 weight percent of said composition and having a particle size, on average, less than 7 microns;
- (v) particles of soda-lime-silica glass forming 3 to 55 weight percent of the composition and having a diameter, on average, less than 20 microns and having a melting point of at least about 1700° F.;
- and at least one material selected from the group consisting of:
- (vi) low-melting glass frit powder melting below 1300° F. forming up to 20 weight percent of said composition and having a particle size, on average, less than 10 microns;
- vii) zinc oxide forming up to 10 weight percent of said composition;
- C} a layer of sensitizing material comprising silane over the water-based paint;
- and
- (D) a layer of organic paint adhered to the layer of sensitized water-based paint.
Dependencies are inferred from the claim text.