Back to results
US 10,899,652 B2Granted
Glass fibers
AssigneeSaint-Gobain Isover
InventorsEmmanuel Lecomte, Christopher Ellison
Life of this patent
Estimating the term…
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%.
Claims25
Glass fibers, the chemical composition of which comprises 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%
- B2O3
- 5-15%.
- wherein the chemical composition is free of bismuth oxide and the fibers are adapted for incorporation into paper sheets to be formed into filters or battery separators, wherein the fibers are adapted for incorporation into the paper sheets by placing the fibers in an aqueous suspension on a filter belt, removing liquid from the aqueous suspension by suction, and drying a resulting fibrous sheet.
16 more elements
Glass fibers, the chemical composition of which comprises the following constituents, in a weight content that varies within the limits defined below:
- SiO2
- 50-70%
- Al2O3
- 0-5%
- CaO + MgO
- 2.5%-5%
- Na2O
- 5-15%
- K2O
- 0-10%
- BaO
- 2-10%
- SrO
- 2-10%
- ZnO
- <2%
- B2O3
- 5-15%.
- wherein the chemical composition is free of bismuth oxide the fibers are adapted for incorporation into paper sheets to be formed into filters or battery separators by placing the fibers in an aqueous suspension on a filter belt, removing liquid from the aqueous suspension by suction, and drying a resulting fibrous sheet.
16 more elements
Dependencies are inferred from the claim text.