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US 2014/0272258 A1Published application
Recycled polystyrene sheet
OwnerMichael J. SMITHinventor
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Abstract
The present invention relates to a recycled polystyrene foamed sheet apparatus for displaying images and a method of making the same.
Claims20
A process of producing a polystyrene sheet formed of recycled polystyrene, said process comprising:
- densifying discarded EPS to produce densified expanded polystyrene,
- converting the densified expanded polystyrene into pellets,
- extruding the pellets into a sheet,
- cutting the sheet to a desired size,
- and affixing an image to at least one surface of the sheet.
2 more elements
A process of producing a polystyrene sheet formed of recycled polystyrene, said process comprising:
- densifying discarded expanded polystyrene to produce densified expanded polystyrene,
- breaking down the densified EPS to form pellets,
- feeding the pellets into an extruder,
- heating the pellets beyond its melting point to form plasticized expanded polystyrene, wherein during said heating a white color master batch is added to the pellets,
- feeding the plasticized EPS through a screen to form secondary pellets,
- feeding the secondary pellets into a sheet extruder with a sheet die to form an expanded thermoplastic sheet.
3 more elements
A polystyrene sheet formed of recycled polystyrene, said polystyrene sheet being affixed with at least one image on a primary surface thereof.
Dependencies are inferred from the claim text.