Glass fibers having non-circular cross sections, and fiber-reinforced resin compact using same
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United States of America Patent
Stats
-
Jan 26, 2016
Grant Date -
Nov 20, 2014
app pub date -
Dec 4, 2012
filing date -
Dec 6, 2011
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Glass fibers having non-circular cross sections, excellent strength and excellent modulus of elasticity, and a fiber-reinforced resin compact using the same are provided. The glass fibers having non-circular cross sections are obtained by spinning the molten glass prepared by melting a glass composition as a raw material for the glass fibers. The glass fibers have a composition in which the content of SiO2 is 57.0 to 63.0% by mass, the content of Al2O3 is 19.0 to 23.0% by mass, the content of MgO is 10.0 to 15.0% by mass and the content of CaO is 5.5 to 11.0% by mass, in relation to the total amount of the glass fibers, and the ratio of the content of MgO to the content of CaO, MgO/CaO falls within a range from 0.8 to 2.0.
First Claim
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International Classification(s)
- 2012 Application Filing Year
- C03C Class
- 612 Applications Filed
- 516 Patents Issued To-Date
- 84.32 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 2 Citation Count
- C03C Class
- 25.77 % this patent is cited more than
- 9 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jul 26, 2027 |
