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:
Jan. 30, 2018
Filed:
Oct. 18, 2011
Douglas Alan Hofmann, Hebron, OH (US);
Peter B. Mcginnis, Gahanna, OH (US);
Douglas Alan Hofmann, Hebron, OH (US);
Peter B. McGinnis, Gahanna, OH (US);
OCV Intellectual Capital, LLC, Toledo, OH (US);
Abstract
A glass composition including SiOin an amount from about 70.0 to about 78.2% by weight, AlOin an amount from about 18.6 to about 26.2% by weight, MgO in an amount from about 3.1 to about 10.7% by weight, CaO in an amount from 0.0 to about 7.6% by weight, LiO in an amount from about 0.1 to about 5.0% by weight, and NaO in an amount from 0.0 to about 0.2% by weight is provided. In exemplary embodiments, the glass composition is free or substantially free of BOand fluorine. The glass fibers have a specific strength between about 1.6×10J/kg and 2.24×10J/kg and a specific modulus between about 3.3×10J/kg and 3.7×10J/kg. Glass fibers formed from the inventive composition possess exceptionally high specific strength and a low density, which make them particularly suitable in applications that require high strength, high stiffness, and low weight, such as in wind blades and aerospace structures.