Prefinished deformable metal reflector sheet
AssigneeAlcoa Inc.
InventorsDaniel L. Serafin, Robert E. Bombalski, Jean Ann Skiles, Albert L. Askin, Sallie L. Blake
Life of this patent
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Abstract
A prefinished curved reflector suitable for use in recessed lighting, downlighting, head lamps, and tail lamps is made from metal sheet, preferably an aluminum alloy sheet. An outer surface of the metal sheet is either anodized, laminated, or polymer coated to provide desired appearance and performance. Surprisingly, the metal sheet retains its reflectivity and resistance to corrosion even after deformation into a curved reflector.
Claims13
A process for making a curved reflector suitable for use in recessed lighting, downlighting head lamps, and tail lamps, comprising
- (a) providing a conversion coated metal sheet comprising steel or an aluminum alloy,
- (b) coating said metal sheet with a coating composition consisting essentially of a polymer selected from the group consisting of polyesters, polyolefins, and polyimides;
- particles of a filler selected from the group consisting of titanium dioxide, silica, calcium carbonate, and mixtures thereof;
- and an organic solvent, and
- (c) after steps (a) and (b), shaping the coated metal sheet into a curved reflector having a reflective concave inner side, said curved reflector being suitable for recessed lighting, downlighting, head lamps, and tail lamps.
A process for making a curved reflector suitable for use in recessed lighting, downlighting, head lamps, and tail lamps, comprising
- a) conversion coating an outer surface of a metal sheet comprising steel or an aluminum alloy,
- b) coating the conversion coated metal sheet with a coating composition comprising a polymer, particles of a filler selected from the group consisting of titanium dioxide, silica, calcium carbonate, and mixtures thereof, and an organic solvent, and
- c) after steps (a) and (b), shaping the polymer coated metal sheet into a curved reflector having a reflective inner side, said curved reflector being suitable for recessed lighting, downlighting, head lamps, and tail lamps.
Dependencies are inferred from the claim text.