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:
Dec. 15, 2020
Filed:
Oct. 01, 2018
Daiken Corporation, Toyama, JP;
Katsuhito Oshima, Toyama, JP;
Yasushi Sugio, Toyama, JP;
Koji Nagaoka, Toyama, JP;
Kazuki Sakamoto, Toyama, JP;
DAIKEN CORPORATION, Toyama, JP;
Abstract
This method for manufacturing a high-density strand board enables high-density strand boards to be formed by using about the same press pressure as press pressures required to form strand boards with common densities, so that the high-density strand boards can be produced without using special facilities and equipment. A pretreatment process Pis performed on strandsbefore pressing. The pretreatment process Pis comprised of a first treatment process Pand a subsequent second treatment process P. At least one of beating, high-frequency treatment, high-temperature high-pressure treatment, high-water pressure treatment, repeated deaeration and dehydration treatment, and chemical treatment is performed in the first treatment process P, and roll pressing or flat press pressing is performed in the second treatment process P. A strand board B with a density of 750 to 950 kg/mis formed by using a press pressure of 4 N/mmor less.