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, 2012
Filed:
Oct. 11, 2007
Yoshinori Wakamiya, Kitakyushu, JP;
Hiroyasu Nishida, Kitakyushu, JP;
Yuji Tawarazako, Kitakyushu, JP;
Kazuaki Inoue, Kitakyushu, JP;
Osamu Yoshida, Kitakyushu, JP;
Akira Nakashima, Kitakyushu, JP;
Yoshinori Wakamiya, Kitakyushu, JP;
Hiroyasu Nishida, Kitakyushu, JP;
Yuji Tawarazako, Kitakyushu, JP;
Kazuaki Inoue, Kitakyushu, JP;
Osamu Yoshida, Kitakyushu, JP;
Akira Nakashima, Kitakyushu, JP;
JGC Catalysts and Chemicals Ltd., Kanagawa, JP;
Abstract
The present invention provides a sol of spinous silica-based particles in which silica-based particles having peculiar forms, spinous forms are dispersed in a solvent. The spinous silica-based particles have verrucous projections formed on surfaces of spherical silica-based particles. In the spinous particles, a value of the surface roughness (SA/SASAindicating a specific surface area measured by the BET method or the Sears method and SAindicating a specific surface area converted from an average particle diameter (D) measured by the image analysis method) is in the range from 1.7 to 10. Furthermore the average diameter (D) measured by the image analysis method is in the range from 7 to 150 nm.