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:
Mar. 04, 2014
Filed:
Nov. 19, 2004
Takahiro Tomita, Chita, JP;
Shinji Kawasaki, Nagoya, JP;
Takahiro Tomita, Chita, JP;
Shinji Kawasaki, Nagoya, JP;
NGK Insulators, Ltd., Nagoya, JP;
Abstract
There are provided a honeycomb structure and a method of manufacturing the structure, capable of preventing or reducing generation of COor harmful gas during firing to thereby prevent or inhibit pollution and global warming, and capable of obtaining a honeycomb structure having few defects such as cracks and maintaining high strength and low thermal expansion. In a method of manufacturing a honeycomb structure, in which a forming material containing a cordierite forming material and an organic binder is kneaded and formed to prepare a honeycomb-shaped formed article (honeycomb formed article), and the prepared honeycomb formed article is fired to obtain a honeycomb-shaped structure (honeycomb structure) mainly composed of cordierite: the forming material containing a layered clay mineral whose layer charge (X) is 0.2<X≦2 in addition to the cordierite forming material and the organic binder is used; a total amount of at least one element selected from a group consisting of sodium, potassium, and calcium contained in the layered clay mineral is set to 0.5% by mass or less in terms of oxide with respect to a total with the cordierite forming material; and a content ratio of the organic binder is set to 5 parts by mass or less with respect to 100 parts by mass in total of the cordierite forming material and the layered clay mineral.