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US 2008/0305310 A1Published application
Luminescent laminate acrylic sheet and method
OwnerEric S. Hausserman, Brad Rickleinventors
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Abstract
A luminescent laminate acrylic sheet and a method of making the sheet are disclosed. The sheet includes a luminescent layer bonded to at least one other acrylic layer, wherein the luminescent layer provides illumination to the sheet in low or no light environments. The method of producing the sheet includes extruding the various layers and then bonding the layers together under a compressive force and an elevated temperature in a flat lamination press.
Claims20
A luminescent laminate sheet comprising:
- an extruded substrate layer formed from an acrylic resin extruded as a sheet;
- and
- an extruded luminescent layer formed from an acrylic resin including an acrylic base resin and a luminescent compound, the luminescent layer bonded to the substrate layer to provide a luminescent laminate sheet.
A luminescent laminate sheet comprising:
- a substrate layer formed from an acrylic resin including an acrylic base resin and at least one of a heat stabilized colorant, processing aid, and impact modifier extruded as a sheet having a thickness between about 0.0025 and 0.0075 inches;
- and
- a luminescent layer formed from an acrylic resin including a strontium oxide aluminate and an acrylic base resin extruded as a sheet having a thickness between about 0.010 and 0.020 inches, a ratio of the strontium oxide aluminate to the acrylic base resin being about one to four, the luminescent layer bonded to the substrate layer to provide a luminescent laminate sheet.
A method for producing a luminescent laminate sheet comprising the steps of:
- extruding a plurality of sheets from an acrylic resin, at least one sheet including a luminescent compound with the acrylic resin;
- and
- compressing the sheets with about 1300 psi at a temperature between about 260 to 270 degrees Fahrenheit to create a laminate thereof.
Dependencies are inferred from the claim text.