The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 11, 2004
Filed:
Oct. 02, 2002
Je-suk Woo, Bucheon, KR;
Chang-guen Lee, Incheon, KR;
Hyeong-keor Yoo, Bucheon, KR;
Sung-il Kim, Bucheon, KR;
Woojin Corporation, Bucheon, KR;
Abstract
Disclosed is a floor-covering material, in which a phenol composite resin comprising phenol resin of resorcinol-formaline and polyurethane resin is incorporated with paper and dried, to form a prepreg, which is then thermally compressed to the upper side of a PVC base or a waterproof plywood layer, yielding a transparent protective layer and a shaping layer. In the flooring material, the transparent layer and the shaping layer are made of phenol composite resin, and thus low in heat- and moisture-distortion, with no curling. Further, since a surface layer of the floor-covering material is hardly distorted by heat, a balance layer for the suppression of such distortion is not additionally required.