Back to results
US 2014/0235424 A1Published application
Low Dielectric Glass And Fiber Glass
AssigneePPG Industries Ohio, Inc.
InventorHong Li
Life of this patent
Estimating the term…
Abstract
Glass compositions are provided that are useful in a variety of applications including, for example, electronics applications, reinforcement applications, and others. Some embodiments of glass compositions can provide desirable dielectric constants, desirable dissipation factors, and/or desirable mechanical properties while also having desirable fiber forming properties.
Claims23
A glass composition suitable for fiber forming, comprising:
- SiO2
- 69-77
- weight percent;
- B2O3
- 4.5-10
- weight percent;
- Al2O3
- 4.5-11
- weight percent;
- MgO
- 4-12.5
- weight percent;
- CaO
- 4.9-10.5
- weight percent;
- Li2O
- 0-4
- weight percent;
- Na2O
- 0-2
- weight percent;
- K2O
- 0-1
- weight percent;
- Fe2O3
- 0-1
- weight percent;
- F2
- 0-2
- weight percent;
- TiO2
- 0-2
- weight percent;
- and
- other constituents
- 0-5
- weight percent total.
34 more elements
A glass composition suitable for fiber forming, comprising:
- SiO2
- 69-77
- weight percent;
- B2O3
- 5-10
- weight percent;
- Al2O3
- 4.5-11
- weight percent;
- MgO
- 5-12.5
- weight percent;
- CaO
- 5-10.5
- weight percent;
- Li2O
- 0-4
- weight percent;
- Na2O
- 0-2
- weight percent;
- K2O
- 0-1
- weight percent;
- Fe2O3
- 0-1
- weight percent;
- F2
- 0-2
- weight percent;
- TiO2
- 0-2
- weight percent;
- and
- other constituents
- 0-5
- weight percent total,
- wherein the MgO+CaO content is less than 16 weight percent.
35 more elements
Dependencies are inferred from the claim text.