Patent · US Active

Glass fibers

US10899652B2 · kind B2 · utility

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3References
25Claims
0Family size

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Key dates

Filing dateJul 12, 2017
Grant dateJan 26, 2021
Priority date
Expiry dateJul 12, 2037

Classification

  • Technology area (CPC E)Fixed Constructions
  • CPC primaryE04B2001/742
  • WIPO fieldChemical engineering
  • WIPO sectorChemistry

Abstract

Glass fibers have a chemical composition that includes the following constituents, in a weight content that varies within the limits defined below: SiO2 50-70%, Al2O3 0-5%, CaO+MgO 0-7%, Na2O 5-15%, K2O 0-10%, BaO 2-10%, SrO 2-10%, ZnO <2%, and B2O3 5-15%.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.