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:
Jul. 15, 2008
Filed:
Oct. 15, 2004
Richard K. Brow, Rolla, MO (US);
Signo Tadeu Dos Reis, Rolla, MO (US);
Glen Benson, Oakland, CA (US);
Richard K. Brow, Rolla, MO (US);
Signo Tadeu Dos Reis, Rolla, MO (US);
Glen Benson, Oakland, CA (US);
Other;
Abstract
A glass composition for use as a sealant or otherwise bonded to a fuel cell component, including from about 40 mol % to about 60 mol % RO; from about 2 mol % to about 10 mol % MO; and from about 35 mol % to about 45 mol % SiO. R is selected from the group including strontium, calcium, magnesium and zinc and combinations thereof. M is selected from the group including aluminum, boron, lanthanum, iron and combinations thereof. The glass includes at least about 5 mol % ZnO. Upon heat treatment, the glass at least partially crystallizes with the formation of at least one alkaline earth-zinc pyrosilicate crystalline phases.