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:
Sep. 13, 1994
Filed:
Jul. 01, 1992
Yasuo Tamura, Kanagawa, JP;
Ryoji Tanaka, Tokyo, JP;
Takahiko Gohma, Tokyo, JP;
Mitsumasa Horikawa, Aichi, JP;
Koyo Sangyo Co., Ltd., Tokyo, JP;
Abstract
A laminated material comprises a plurality of straight portions of vegetable stalks, each having an epidermis mainly of lignocellulose and a porous core. These vegetable stalks straight portions are impregnated with a thermal hardener solution of high-molecularisable liquid compound, resinified liquid, or mixtures thereof, arranged in parallel to form a layer of a sheet-like material, piling these sheet-like materials and pressing them to make these layers come to contact closely in flat condition. It is possible to make the directions of vegetable stalks in the sheet-like material different from the neighboring layers in order to strengthen a bending strength and other physical strength of the piled multi-layer laminated material, such as a pillar-like laminated material. Such pillar-like material is made by using a pair of pressing female mold and male mold, vegetable stalks being placed in the female mold and hot-pressed. After these vegetable stalks are laminated, the resin compound in the thermal hardener solution is set or harden.