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11.发明公开
公开(公告)号：EP4043415A1
公开(公告)日：2022-08-17
申请号：EP20929923.9
申请日：2020-12-24
IPC分类号： C03C13/02
摘要： To provide a glass composition for glass fiber having a low dielectric loss tangent, suppressing the occurrence of phase separation, having a reduced viscosity at high temperatures, and reducing the occurrence of striae. The glass composition for glass fiber includes 52.0 to 57.5% by mass of SiO 2 , 19.5 to 25.5% by mass of B 2 O 3 , 8.0 to 13.0% by mass of Al 2 O 3 , 0 to 2.0% by mass of MgO, 0 to 6.0% by mass of CaO, 0.5 to 6.5% by mass of SrO, and 0.1 to 3.0% by mass of TiO 2 , the ratio of Al 2 O 3 to B 2 O 3 is 0.35 to 0.54, and the content SI of SiO 2 , the content B of B 2 O 3 , the content M of MgO, the content C of CaO, the content SR of SrO, and the content T of TiO 2 satisfy the following formula (1): 6.90 ≤ 100 × (B/SI) 2 × {SR/(C+SR)} 2/3 × {T/(M+T)} 1/2 ≤ 12.30 (1).
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公开(公告)号：EP2581350B1
公开(公告)日：2017-01-11
申请号：EP11792319.3
申请日：2011-05-30
CPC分类号： C03C13/006 , C03C3/087 , C03C10/0045 , C03C13/00 , C03C13/06 , C03C2213/00
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13.发明公开
公开(公告)号：EP4410750A1
公开(公告)日：2024-08-07
申请号：EP22929932.6
申请日：2022-10-31
发明人： ITO, Jun , KURITA, Tadashi , NAKAMURA, Koichi , NONAKA, Takashi , HIRAYAMA, Norio , UNUMA, Hidero
摘要： To provide a glass composition for glass fiber that can obtain glass fiber which includes biosolubility, which can achieve long fiber formation, and which can include a low dielectric tangent. The glass composition for glass fiber of the present invention includes SiO2 in the range of 36.0% by mass or more and less than 48.0% by mass, B2O3 in the range of 18.0% by mass or more and 32.0% by mass or less, Al2O3 in the range of 12.0% by mass or more and 24.0% by mass or less, P2O5 in the range of 2.5% by mass or more and 8.9% by mass or less, and CaO and MgO in the range of 5.0% by mass or more and 13.0% by mass or less in total, with respect to the total amount.
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14.发明公开
公开(公告)号：EP4299540A1
公开(公告)日：2024-01-03
申请号：EP22759379.5
申请日：2022-02-09
IPC分类号： C03C13/02
摘要： Provided is a glass composition for glass fiber that enables glass fiber having excellent water resistance and excellent dielectric characteristics in a high-frequency region to be obtained therefrom and has a lowered 1000 poise temperature. The glass composition for glass fiber includes 50.00 to 61.00% by mass of SiO 2 , 16.00 to 27.00% by mass of B 2 O 3 , 7.00 to 14.00% by mass of Al 2 O 3 , 0.20 to 4.00% by mass of P 2 O 5 , 0.50 to 5.00% by mass of TiO 2 , 0.10 to 5.00% by mass of CaO, 0 to 4.00% by mass of MgO, and 0 to 2.00% by mass of F 2 and Cl 2 in total, with respect to the total amount of the glass composition for glass fiber, and the content S of SiO 2 , the content A of Al 2 O 3 , the content P of P 2 O 5 , the content T of TiO 2 , the content C of CaO, and the content M of MgO satisfy the following formula (1): 3.65 ≤ S / A 2 × P × T 1 / 2 / C + M 3 ≤ 8.25
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公开(公告)号：EP3339264A1
公开(公告)日：2018-06-27
申请号：EP15902216.9
申请日：2015-08-21
IPC分类号： C03C13/00
CPC分类号： C03C13/00 , C03B37/075 , C03B2203/02 , C03C3/087 , C03C3/091
摘要： Provided is a method for producing glass fiber, capable of stably performing the spinning of glass fibers without mixing of red crystals in glass fibers. When glass fibers are formed by discharging, from a nozzle tip, a molten glass obtained by melting glass raw materials mixed so as to give a glass composition including, when melted, in relation to the total amount thereof, SiO 2 in a range from 57.0 to 62.0% by mass, Al 2 O 3 in a range from 15.0 to 20.0% by mass, MgO in a range from 7.5 to 12.0% by mass, and CaO in a range from 9.0 to 16.5% by mass, and having a total content of SiO 2 , Al 2 O 3 , MgO and CaO of 98.0% by mass or more, the glass composition includes B 2 O 3 , Li 2 O, or B 2 O 3 and Li 2 O as an additive or additives capable of suppressing the generation of red crystals.
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16.发明公开GLASS FIBERS HAVING NON-CIRCULAR CROSS SECTIONS, AND FIBER-REINFORCED RESIN COMPACT USING SAME 有权对于NOT CIRCLE圆形横截面和纤维增强树脂压制身体，使玻璃纤维
公开(公告)号：EP2789591A1
公开(公告)日：2014-10-15
申请号：EP12855120.7
申请日：2012-12-04
发明人： NONAKA, Takashi , AIZAWA, Tsunefumi
IPC分类号： C03C13/00 , B29C45/00 , B29K105/12
CPC分类号： C03C13/006 , B29C45/0005 , C03C3/087 , C03C13/00 , C03C14/008 , C03C25/1095 , C08K7/14 , Y10T428/2973 , Y10T428/2976
摘要： 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 SiO 2 is 57.0 to 63.0% by mass, the content of Al 2 O 3 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.
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17.发明公开LONG-FIBER-REINFORCED THERMOPLASTIC RESIN PREFORM AND FIBER-REINFORCED RESIN COMPACT USING SAME 有权长纤维增强热塑性预型体和纤维增强树脂压榨体，使得
公开(公告)号：EP2789442A1
公开(公告)日：2014-10-15
申请号：EP12854881.5
申请日：2012-12-04
发明人： NONAKA, Takashi , AIHARA, Hiroyasu
CPC分类号： C08J5/043 , B29B9/14 , B29B11/02 , C03C3/087 , C03C13/00 , C03C25/16 , C03C25/328 , C08J2300/22 , C08K3/40
摘要： Provided is a long-fiber-reinforced thermoplastic resin preform including glass fibers excellent in strength and modulus of elasticity and easily produced and a long-fiber-reinforced resin compact excellent in strength and modulus of elasticity. The long-fiber-reinforced thermoplastic resin preform is produced by cutting to a predetermined length glass fiber bundles impregnated with a thermoplastic resin and holding the thermoplastic resin around the glass fiber bundles, and includes the glass fiber bundles as long fiber bundles. The glass fiber bundles are formed by bundling glass fibers. The glass fibers have a composition wherein the content of SiO 2 is 57.0 to 63.0% by mass, the content of Al 2 O 3 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, and the ratio MgO/CaO is 0.8 to 2.0.
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