Curing Coatings on Glass Containers
AssigneeOwens-Brockway Glass Container Inc.
InventorsMichael P. Remington, JR., Terence K. G. Howse
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Abstract
A method of applying a coating to a glass container, which includes the steps of coating an exterior surface of the glass container with a thermally-curable coating material containing electrically-conductive nanoparticles, and exposing the coated container to radio frequency radiation such that absorption of the radio frequency radiation by the nanoparticles internally heats and cures the thermally-curable coating material on the exterior surface of the glass container to result in a cured coating on the glass container.
Claims33
A method of applying a coating to a glass container, which includes the steps of:
- (a) coating an exterior surface of the glass container with a thermally-curable coating material containing electrically-conductive nanoparticles, and
- (b) exposing the coated container to radio frequency radiation such that absorption of said radio frequency radiation by said nanoparticles internally heats and cures said thermally-curable coating material on the exterior surface of the glass container to result in a cured coating on the glass container.
A method of applying a coating to a glass container, which includes the steps of:
- (a) coating an exterior surface of the glass container with a thermally-curable coating material composed of at least one of the members selected from the group consisting of:
- silane, siloxane, silicone, urethane, acrylate, and epoxy, and with non-magnetic electrically-conductive nanoparticles of 1 to 100 nanometers along their largest dimension and composed of at least one of the members selected from the group consisting of:
- copper, gold, silver, platinum, aluminum, zinc oxide (undoped, and/or doped with fluorine, aluminum, gallium, and/or indium), zinc stannate (ZnSnO3 or Zn2SnO4), tin dioxide (undoped, and/or doped with fluorine, antimony, phosphorus, and/or boron), and indium tin oxide, and
- (b) exposing the coated container to radio frequency radiation of less than one gigahertz such that absorption of said radio frequency radiation by said nanoparticles internally heats and cures said thermally-curable coating material on the exterior surface of the glass container to result in a cured coating on the glass container.
A method of applying a coating to a glass container, which includes the steps of:
- (a) coating an exterior surface of the glass container with:
- a thermally-curable coating material to impart one or more desirable properties to the glass container including at least one of strength, color, or ultraviolet protection properties, and
- electrically-conductive nanoparticles for use as susceptors to absorb radio frequency radiation and internally transfer heat to said thermally-curable coating material, and also for use in at least one of supplementing said thermally-curable coating material in imparting the one or more desirable properties to the glass container or complementing said thermally-curable coating material to impart one or more additional desirable properties to the glass container, and
- (b) exposing the coated container to radio frequency radiation such that absorption of said radio frequency radiation by said nanoparticles internally heats and cures said thermally-curable coating material on the exterior surface of the glass container to result in a cured coating on the glass container.
A product comprising:
- a glass container including an exterior surface;
- and
- a coating cured on the exterior surface of said glass container, and including:
- electrically-conductive nanoparticles radiated by radio frequency radiation;
- and
- a thermally-curable coating material cured by heat generated by said radiated electrically-conductive nanoparticles.
Dependencies are inferred from the claim text.