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:
Jul. 13, 2004
Filed:
Mar. 28, 2001
Eiichirou Yokochi, Tokyo-To, JP;
Hajime Takeuchi, Tokyo-To, JP;
Abstract
A decorative sheet using a paper substrate is provided which, even in the case of the adoption of a construction such that a surface resin layer has been formed by crosslinking through an ionizing radiation irradiation to improve surface properties such as abrasion resistance, does not cause an unfavorable phenomenon such that the workability is lowered due to a deterioration in strength of the paper substrate caused by the ionizing radiation and, consequently, the sheet is broken at the time of lamination. A decorative sheet S comprises, stacked in the following order from the top surface toward the back surface, a surface resin layer formed of a crosslinked product of an ionizing radiation-curable resin, a paper substrate , and a high-modulus resin layer having a tensile strength of not less than 40 MPa as measured according to JIS K 6301. A pattern layer or the like may be additionally provided. The use of a needle-leaved tree pulp as the paper substrate is preferred from the viewpoint of strength. Further, the paper substrate preferably comprises a pulp which has a carboxyl or carbonyl group at a cut end created by the cleavage of a cellulose molecule. The lamination of this decorative sheet onto an adherend substrate with the aid of an adhesive can provide a decorative material such as a decorative plate.