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AssigneeOwens Corning Intellectual Capital, LLC
InventorsDouglas Alan Hofmann, Peter Bernard McGinnis
Estimating the term…
A glass composition including SiO2 in an amount from about 70.6 to about 79.6% by weight, Al2O3 in 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, Li2O in an amount from 0.0 to about 3.0% by weight, and Na2O 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 B2O3 and fluorine. The glass fibers have a specific modulus between about 3.4×107 J/kg and 3.6×107 J/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.
A composition for preparing high strength glass fibers, the composition comprising the following components:
A reinforced composite product comprising:
Dependencies are inferred from the claim text.