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US 6,887,555 B2Granted
Floor covering based on perforated PVC sheet
AssigneesWoojin Inc., Je-suk Woo
InventorsJe-Suk Woo, Hyeong-Keor Yoo
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Abstract
Disclosed is a floor covering, in which a surface material such as wood, Korean paper, textile fabric, and thermosetting resin sheet is attached to a surface of a perforated high density PVC sheet. Shrinkage or expansion differences between the surface material and the PVC sheet are removed because multiple holes of the perforated high density PVC sheet offset shrinkage or expansion of the PVC sheet, thereby cracks or curling of the floor covering are prevented and the floor covering can have a smooth appearance.
Claims2
A floor covering based on a perforated polyvinyl chloride sheet, comprising:
- an integrated sheet body prepared by laminating and fusing 2 to 20 perforated high density polyvinyl chloride sheets, each sheet having a plurality of holes;
- a glass fiber sheet attached to either the upper or lower side of the integrated sheet body;
- and a wood thin film, having a UV coated layer, attached to the uppermost side of the integrated sheet body.
Dependencies are inferred from the claim text.