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:
Feb. 15, 2005
Filed:
Feb. 27, 1997
Fumikazu Machino, Osaka, JP;
Tsuyoshi Higo, Osaka, JP;
Toshinobu Kataoka, Osaka, JP;
Ryoichi Onoue, Osaka, JP;
Toshio Date, Osaka, JP;
Tominori Sato, Osaka, JP;
Fumikazu Machino, Osaka, JP;
Tsuyoshi Higo, Osaka, JP;
Toshinobu Kataoka, Osaka, JP;
Ryoichi Onoue, Osaka, JP;
Toshio Date, Osaka, JP;
Tominori Sato, Osaka, JP;
Osaka Gas Co., Ltd., Osaka, JP;
Abstract
An object of the present invention is, by utilizing carbon fibers as its constituent material, to provide a thermal-acoustic insulation material having excellent properties in durability, compression resilience, lightness, fireproofness, and non-galvanic corrosiveness. The material of the present invention comprises a wool-like carbon fiber aggregate composed of carbon fibers having an average fiber diameter of 0.5 μm to 5 μm and an average fiber length of 1 mm to 15 mm and the contact points of the fibers are bonded together by a thermosetting resin. The galvanic current of the material is 10 μA or lower in a galvanic cell comprising an electrode composed of the thermal-acoustic insulation material, the other electrode composed of an aluminum plate, and an electrolytic solution composed of 0.45 wt. % sodium chloride aqueous solution.