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:
Oct. 05, 2010
Filed:
Aug. 15, 2007
Applicant:
Elam A. Leed, Pine, CO (US);
Inventor:
Elam A. Leed, Pine, CO (US);
Assignee:
Johns Manville, Denver, CO (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C03C 13/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
A glass fiber composition comprises about 33-47 weight % SiO; about 18-28 weight % AlO; about 5-15 weight % FeO; greater than or equal to about 2 weight % and less than 10 weight % RO; about 8-30 weight % CaO; and less than 4 weight % MgO; wherein RO represents alkali metal oxides. Preferably, the glass fiber composition has a liquidus temperature of less than 2350° F.; and a viscosity at a liquidus temperature of the glass fiber composition of greater than 500 poise; and fire resistant glass fiber formed from the glass fiber composition has a biodissolution rate of greater than 50 ng/cm/hr.