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:
Jun. 03, 2003
Filed:
Apr. 19, 2001
Applicant:
Inventors:
Suhas Bhandarkar, Glen Gardner, NJ (US);
Yoram De Hazan, Oley, PA (US);
John Burnette MacChesney, Lebanon, NJ (US);
Thomas Edward Stockert, Millburn, NJ (US);
Assignee:
Fitel USA Corp., Norcross, GA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03B 3/7016 ;
U.S. Cl.
CPC ...
C03B 3/7016 ;
Abstract
The use of silica powders having large particle sizes in making sol-gel silica bodies has been found to have important advantages. Among these are higher gel strength, higher silica loading, more rapid aging and drying of the gel, a reduction in the amount of organic additives leading to reduced process time required for organic burn-off, and easier removal of contaminant particles due to their larger size. It was also discovered that spherical particle morphology contributes to the improved properties.