Glass composition for glass fibers, glass fiber, and glass fiber-reinforced resin molded product
AssigneeNitto Bosekl Co., Ltd.
InventorsYosuke Nukui, Tatsuya Komukai
Life of this patent
Estimating the term…
Abstract
Provided is a glass composition for glass fiber that suppresses variations in fiber diameter of glass fiber including 45.60 to 59.00% by mass of SiO2, 10.00 to 16.00% by mass of Al2O3, 17.00 to 25.00% by mass of CaO, 0.01 to 9.50% by mass of TiO2, 0.03 to 7.00% by mass of P2O5, 0.00 to 9.50% by mass of ZnO, 0.00 to 2.00% by mass of SO3, 0.01 to 11.50% by mass in total of ZnO and SO3, and 0.00 to 2.00% by mass in total of Na2O, K2O, and Li2O, with respect to the total amount. The content SI of SiO2, the content A of Al2O3, the content C of CaO, the content T of TiO2, the content P of P2O5, the content Z of ZnO, and the content SO of SO3 satisfy the following formula (1): 15.0≤(SI/C)2×(A/T)×{P/(SO+Z)}1/4≤690.1 (1).
Claims6
A glass composition for glass fiber comprising:
- SiO2 in a range of 45.60 to 59.00% by mass,
- Al2O3 in a range of 10.00 to 16.00% by mass,
- CaO in a range of 17.00 to 25.00% by mass,
- TiO2 in a range of 0.01 to 9.50% by mass,
- P2O5 in a range of 0.03 to 7.00% by mass,
- ZnO in a range of 0.00 to 9.50% by mass,
- SO3 in a range of 0.00 to 2.00% by mass,
- ZnO and SO3 in a range of 0.01 to 11.50% by mass in total, and
- Na2O, K 2 O, and Li2O in a range of 0.00 to 2.00% by mass in total, with respect to the total amount of the glass composition for glass fiber, wherein
- a content SI of SiO2, a content A of Al2O3, a content C of CaO, a content T of TiO2, a content P of P2O5, a content Z of ZnO, and a content SO of SO3 satisfy following formula (1):
- 15.0≤(SI/C)2×(A/T)×{P/(SO+Z)}1/4≤690.1 (1).
Dependencies are inferred from the claim text.