MUMBAI, India, Aug. 22 -- Intellectual Property India has published a patent application (202517073509 A) filed by Owens Corning Intellectual Capital, Llc, Toledo, U.S.A., on Aug. 1, for 'lithium-free high modulus fiberglass composition.'
Inventor(s) include Korwin-Edson, Michelle L.
The application for the patent was published on Aug. 22, under issue no. 34/2025.
According to the abstract released by the Intellectual Property India: "A lithium-free glass composition is disclosed that includes SiO2 in an amount from 50 to 58 % by weight; Al2O3 in an amount from 18 to 22 % by weight; CaO in an amount from 7 to 12 % by weight; MgO in an amount from 11.5 to 15 % by weight; Na2O in an amount from 0.05 to 0.5% by weight; ZrO2 in an amount from 0 to 5 wt.%; and Li2O in an amount less than 0.5% by weight, and the combined amount of SiO2+Al2O3+MgO+CaO is less than or equal to 99.5 % by weight; expressed as percentages by weight based on the weight of the entire composition. The composition satisfies at least one of the following: a ratio C1 (C1 = SiO2/(MgO+CaO)) of 2.3 - 2.7; a ratio C2 (C2= MgO/CaO) of at least 1.3, and a ratio C4 (C4 = Al3+/Mg2+) of at least 1.3. The lithium-free glass composition has a fiberizing temperature no greater than 1,300 C."
The patent application was internationally filed on Jan. 05, 2024, under International application No.PCT/US2024/010427.
Disclaimer: Curated by HT Syndication.
