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:
Apr. 12, 2011
Filed:
Apr. 01, 2008
Yoshitaka Hamada, Joetsu, JP;
Masaru Sasago, Osaka, JP;
Hideo Nakagawa, Shiga, JP;
Yasunori Morinaga, Osaka, JP;
Yoshitaka Hamada, Joetsu, JP;
Masaru Sasago, Osaka, JP;
Hideo Nakagawa, Shiga, JP;
Yasunori Morinaga, Osaka, JP;
Shin-Etsu Chemical Co., Ltd., Tokyo, JP;
Panasonic Corporation, Osaka, JP;
Abstract
The invention provides a preparation process of organic-group-modified zeolite fine particles excellent in stability of particle size and to be used for electronic materials or the like. The preparation process comprises a first step of obtaining a liquid containing zeolite seed crystals having a particle size of 80 nm or less which are formed in the presence of a structure directing agent, a second step of adding an organic-group-containing hydrolyzable silane compound to the liquid obtained by the first step, and a third step of maturing the liquid of the second step at temperature higher than that of the first step. A dispersion liquid of zeolite fine particles obtained by the process.