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. 19, 2013
Filed:
Dec. 03, 2009
Tetsuya Uchikawa, Nagoya, JP;
Kenji Yajima, Nagoya, JP;
Hisayoshi Nonaka, Nagoya, JP;
Toshihiro Tomita, Nagoya, JP;
Tetsuya Uchikawa, Nagoya, JP;
Kenji Yajima, Nagoya, JP;
Hisayoshi Nonaka, Nagoya, JP;
Toshihiro Tomita, Nagoya, JP;
NGK Insulators, Ltd., Nagoya, JP;
Abstract
A method is provided for producing a DDR type zeolite membrane, including a membrane formation step of immersing a porous substrate having a DDR type zeolite seed crystal adhered thereon, in a raw material solution containing 1-adamantaneamine, silica (SiO) and water, and conducting a hydrothermal synthesis of DDR type zeolite to form a 1-adamantaneamine-containing DDR type zeolite membrane on the porous substrate to produce a precursor of DDR type zeolite membrane-containing body, and a burning step of heating the precursor at 400° C. or above and at 550° C. or below to burn and remove the 1-adamantaneamine contained in the DDR type zeolite membrane.