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:
Sep. 15, 2026
Filed:
Oct. 18, 2011
Douglas Alan Hofmann, Hebron, OH (US);
Peter Bernard Mcginnis, Gahanna, OH (US);
Douglas Alan Hofmann, Hebron, OH (US);
Peter Bernard Mcginnis, Gahanna, OH (US);
Owens Corning Intellectual Capital, LLC, Toledo, OH (US);
Abstract
A glass composition including SiOin an amount from about 70.6 to about 79.6% by weight, AlOin an amount from about 10.0 to 18.5% by weight, MgO in an amount from about 10.0 to about 19.0% by weight, CaO in an amount from about 0.1 to about 5.0% by weight, LiO in an amount from 0.0 to about 3.0% by weight, and NaO in an amount from 0.0 to about 3.0% by weight is provided. In exemplary embodiments, the glass composition is free or substantially free of BOand fluorine. The glass fibers have a specific modulus between about 3.4×10J/kg and 3.6×10J/kg. Glass fibers formed from the inventive composition possess an exceptionally high modulus and a low density, which make them particularly suitable in applications that require high strength, high stiffness, and low weight, such as wind blades and aerospace structures.