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:
Nov. 10, 2009
Filed:
Jul. 23, 2002
Applicants:
Yoshiharu Konya, Annaka, JP;
Koichiro Watanabe, Annaka, JP;
Susumu Ueno, Annaka, JP;
Inventors:
Assignee:
Shin-Etsu Chemical Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01B 33/12 (2006.01); C01F 7/02 (2006.01); C01G 25/02 (2006.01); C01G 23/04 (2006.01); C01G 19/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
By using a halogen-free siloxane and an organometallic compound containing at least one metal other than silicon as feed stocks, and simultaneously atomizing and burning them in a flame, spherical particles of silica-containing compound oxide are prepared which are substantially halogen-free, consist of 0.5-99% by weight of metal oxides and the balance of silica, and have a particle size of 10 nm to 3 μm. The particles are useful as a filler in epoxy resin base semiconductor sealants, a refractive index modifier or the like.