Extended life fluorescence polyvinyl chloride sheeting
AssigneeReflexite Corporation
InventorEdward D. Phillips
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Abstract
An extended life fluorescent polyvinyl chloride sheeting and a method for forming the sheeting are disclosed. The sheeting includes a polyvinyl chloride film having a fluorescent colorant incorporated therein. A protective polymer layer is attached to the polyvinyl chloride film. A light filtering agent is incorporated into the protective layer, wherein the filter agent blocks the 425 nm and lower wavelengths of the visible spectrum.
Claims20
An extended life fluorescent polyvinyl chloride sheeting, comprising:
- a) a polyvinyl chloride film having a fluorescent colorant and hindered amine light stabilizer incorporated therein;
- b) a protective polymer layer, which is attached to said polyvinyl chloride film;
- and
- c) a light filtering agent, which is incorporated into said protective layer, said filtering agent blocks the 425 nm and lower wavelengths of the visible spectrum.
A method for forming an extended life fluorescent polyvinyl chloride sheeting, comprising the steps of:
- a) providing a polyvinyl chloride film having a fluorescent colorant incorporated therein;
- and
- b) attaching a protective polymer layer to said polyvinyl chloride film, wherein said protective polymer layer includes a light filtering agent that blocks the 425 nm and lower wavelengths of the visible spectrum, thereby forming the extended life fluorescent polyvinyl chloride sheeting.
An extended life fluorescent sheeting, comprising:
- a) a polyvinyl chloride film having a fluorescent colorant and hindered amine light stabilizer incorporated therein;
- b) a protective polymer layer, which is attached to said polyvinyl chloride film wherein said protective polymer layer includes a polymer selected from the group consisting of polyacrylate, polyurethane, polyurethane acrylate, polyvinyl acetate and polyvinylidene chloride;
- and
- c) a light filtering agent, which is incorporated into said protective layer, said filtering agent blocks the 425 nm and lower wavelengths of the visible spectrum.
Dependencies are inferred from the claim text.