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. 21, 1984
Filed:
Oct. 21, 1982
Hiroshi Narukawa, Kurashiki, JP;
Rentaro Tada, Kurashiki, JP;
Yasuhira Takeuchi, Kurashiki, JP;
Osamu Ohara, Kurashiki, JP;
Kuraray Co., Ltd., Kurashiki, JP;
Abstract
A sheet-like material having excellent fire resistance and bending workability comprises 80 to 97% by weight of a non-flammable fibrous substance, and 3 to 20% by weight of a binder consisting essentially of a thermoplastic resin. The fibrous substance is orientated at an angle of 3.degree. to 80.degree.. The material has an intermediate layer containing at least 2% by weight of the binder and at least 25% of the average quantity of the binder in the material. A heat insulating material comprising such sheet-like materials is also disclosed. The sheet-like material, and the heat insulating material are manufactured by a wet sheet forming process in which a slurry containing the fibrous substance and the binder is fed to a carrier net or sheet at an angle of 5.degree. to 60.degree. thereto, whereby the fibers are orientated. Alternatively, the slurry is fed to the carrier net or sheet at an angle of 20.degree. to 45.degree., while a fluid is blown into the slurry to create turbulence therein.