JP2003171143A - Glass composition for glass fiber - Google Patents
Glass composition for glass fiberInfo
- Publication number
- JP2003171143A JP2003171143A JP2002286862A JP2002286862A JP2003171143A JP 2003171143 A JP2003171143 A JP 2003171143A JP 2002286862 A JP2002286862 A JP 2002286862A JP 2002286862 A JP2002286862 A JP 2002286862A JP 2003171143 A JP2003171143 A JP 2003171143A
- Authority
- JP
- Japan
- Prior art keywords
- glass
- glass fiber
- content
- composition
- weight
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C3/00—Glass compositions
- C03C3/04—Glass compositions containing silica
- C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
- C03C3/083—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound
- C03C3/085—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound containing an oxide of a divalent metal
- C03C3/087—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound containing an oxide of a divalent metal containing calcium oxide, e.g. common sheet or container glass
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C13/00—Fibre or filament compositions
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Glass Compositions (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ガラス繊維用ガラ
ス組成物及び該ガラス繊維用ガラス組成物からなるガラ
ス繊維に関する。TECHNICAL FIELD The present invention relates to a glass composition for glass fiber and a glass fiber comprising the glass composition for glass fiber.
【０００２】[0002]
【従来の技術】プリント配線板に用いられるガラス繊維
織物は、近年の電子機器の小型化の要求に応えるために
薄物化が進んでいる。したがって、このようなガラス繊
維織物を構成するガラス繊維には高い強度が求められて
いる。2. Description of the Related Art Glass fiber woven fabrics used for printed wiring boards have been made thinner to meet the recent demand for miniaturization of electronic devices. Therefore, high strength is required for the glass fibers constituting such a glass fiber woven fabric.
【０００３】高強度ガラス繊維用のガラス素材として
は、例えば、ＭｇＯ約４〜２５重量％を加えた本質的に
ＳｉＯ2とＡｌ2Ｏ3からなる組成であって、重量基準で
ＳｉＯ2５５〜８５％、Ａｌ2Ｏ3 １０〜３５％およびＭ
ｇＯ ４〜２５％の組成を有するガラス（Ｓガラス）が
知られている（下記特許文献１参照）。As a glass material for high-strength glass fiber, for example, a composition essentially consisting of SiO 2 and Al 2 O 3 with about 4 to 25% by weight of MgO added, and SiO 2 55 to 5 5 on a weight basis. 85%, Al 2 O 3 10-35% and M
Glass (S glass) having a composition of gO 4 to 25% is known (see Patent Document 1 below).
【０００４】そして、上記ガラス組成物以外にも、Ｓｉ
Ｏ2 ６２．０〜６７．０％、Ａｌ2Ｏ3 ２２．０〜２
７．０％、ＭｇＯ ７．０〜１５．０％、Ｂ2Ｏ3 ０．１
〜１．１％及びＣａＯ ０．１〜１．１％からなり、且
つこれらの合計が９９％以上のガラス組成物が公知であ
る（下記特許文献２参照）。In addition to the above glass composition, Si
O 2 62.0~67.0%, Al 2 O 3 22.0~2
7.0%, MgO 7.0-15.0%, B 2 O 3 0.1
˜1.1% and CaO 0.1 to 1.1%, and a total of 99% or more of these glass compositions is known (see Patent Document 2 below).
【０００５】[0005]
【特許文献１】特公昭４８−３０１２５号公報[Patent Document 1] Japanese Patent Publication No. 48-30125
【特許文献２】特開平８−２３１２４０号公報[Patent Document 2] Japanese Patent Laid-Open No. 8-231240
【０００６】[0006]
【発明が解決しようとする課題】しかしながら、特公昭
４８−３０１２５号公報に開示されたＳガラスは、１０
００ポイズ温度から液相温度を差し引いた値である作業
温度範囲が狭く、ガラス繊維の製造が非常に困難である
という問題があった。ここで、１０００ポイズ温度と
は、ガラスの溶融粘度が１０００ポイズとなる温度をい
い、液相温度とは、溶融ガラスの温度を低下させたとき
に最初に結晶の析出が生じる温度をいう。一般的に、ガ
ラス繊維はガラスの溶融粘度を１０００ポイズ付近にし
て紡糸した場合に効率的に製造可能であるため、１００
０ポイズ温度は紡糸の際の指標として用いられる温度で
あり、液相温度は、ガラスの溶融状態の均一性の指標と
なる温度である。However, the S glass disclosed in Japanese Patent Publication No. 48-30125 is only 10
The working temperature range, which is a value obtained by subtracting the liquidus temperature from the 00 poise temperature, is narrow, and there is a problem that it is very difficult to manufacture glass fibers. Here, the 1000 poise temperature refers to a temperature at which the glass has a melt viscosity of 1000 poise, and the liquidus temperature refers to a temperature at which crystals are first precipitated when the temperature of the molten glass is lowered. In general, glass fibers can be efficiently produced when they are spun at a melt viscosity of glass of around 1000 poises, so
The 0 poise temperature is a temperature used as an index during spinning, and the liquidus temperature is a temperature that is an index for the uniformity of the molten state of glass.
【０００７】一方、特開平８−２３１２４０号公報によ
れば、上述した問題を伴わず高強度のガラス繊維を得ら
れるという利点があるものの、紡糸温度が１４５０℃程
度と非常に高いために、紡糸に必要とされるエネルギー
が過大であるという問題があった。On the other hand, according to Japanese Unexamined Patent Publication No. 8-231240, although there is an advantage that a glass fiber having high strength can be obtained without the above-mentioned problems, the spinning temperature is very high at about 1450 ° C. There was a problem that the energy required for was too large.
【０００８】本発明は、かかる従来技術の問題点に鑑み
てなされたものであり、ガラス繊維製造時における紡糸
温度を低く抑えることができ、ガラス繊維製造時の作業
温度範囲を充分に広くすることも可能で、高強度且つ高
弾性率のガラス繊維を作製することが可能な、ガラス繊
維用ガラス組成物、及び、このガラス繊維用ガラス組成
物からなる高強度且つ高弾性率のガラス繊維を提供する
ことを目的とする。The present invention has been made in view of the above-mentioned problems of the prior art, and it is possible to suppress the spinning temperature at the time of glass fiber production to be low and to sufficiently widen the working temperature range at the time of glass fiber production. A glass composition for glass fiber, which is capable of producing a glass fiber having high strength and high elastic modulus, and a glass fiber having high strength and high elastic modulus, which comprises the glass composition for glass fiber The purpose is to do.
【０００９】本発明はまた、かかるガラス繊維を含むガ
ラス繊維布、このガラス繊維を含むガラス繊維強化樹
脂、及びこのガラス繊維強化樹脂層を備えた積層板を提
供することを目的とする。Another object of the present invention is to provide a glass fiber cloth containing the glass fiber, a glass fiber reinforced resin containing the glass fiber, and a laminate provided with the glass fiber reinforced resin layer.
【００１０】[0010]
【課題を解決するための手段】本発明者らは、上記目的
を達成すべく鋭意研究を重ねた結果、ＳｉＯ2、Ａｌ2Ｏ
3、ＭｇＯ、ＣａＯ及びＴｉＯ2からなる基本組成を有す
るガラス繊維用ガラス組成物であって、これら基本組成
成分の含有量が特定範囲内である組成物を用いることに
より、ガラス繊維製造時における紡糸温度を低く抑える
ことができるのみならず、ガラス繊維製造時の作業温度
範囲を充分に広くすることが可能であり、更にはガラス
繊維の強度及び弾性率を向上させることも可能であるこ
とを見出した。Means for Solving the Problems As a result of intensive studies to achieve the above object, the present inventors have found that SiO 2 , Al 2 O
A glass composition for glass fiber having a basic composition consisting of 3 , MgO, CaO and TiO 2 , in which the content of these basic composition components is within a specific range, spinning at the time of manufacturing glass fiber It was found that not only can the temperature be kept low, but the working temperature range during glass fiber production can be made sufficiently wide, and the strength and elastic modulus of the glass fiber can also be improved. It was
【００１１】更に、かかるガラス繊維を用いることによ
りガラス繊維布が得られ、かかるガラス繊維からガラス
繊維強化樹脂が形成可能であり、かかるガラス繊維強化
樹脂を用いることにより積層板が得られることを見出
し、本発明を完成させた。Further, it has been found that a glass fiber cloth can be obtained by using the glass fiber, a glass fiber reinforced resin can be formed from the glass fiber, and a laminate can be obtained by using the glass fiber reinforced resin. The present invention has been completed.
【００１２】すなわち、本発明のガラス繊維用ガラス組
成物は、ＳｉＯ2、Ａｌ2Ｏ3、ＭｇＯ、ＣａＯ及びＴｉ
Ｏ2からなる基本組成を有するガラス繊維用ガラス組成
物であって、該ガラス繊維用ガラス組成物の全重量を基
準として、ＳｉＯ2の含有量が５５〜６５重量％、Ａｌ2
Ｏ3の含有量が１７〜２３重量％、ＭｇＯの含有量が７
〜１５重量％、ＣａＯの含有量が２〜６重量％、ＴｉＯ
2の含有量が１〜７重量％であり、且つ、ＳｉＯ2、Ａｌ
2Ｏ3、ＭｇＯ、ＣａＯ及びＴｉＯ2の合計含有量が９７
重量％以上であることを特徴とするものである。That is, the glass composition for glass fibers according to the present invention comprises SiO 2 , Al 2 O 3 , MgO, CaO and Ti.
A glass composition for glass fibers having a basic composition of O 2 , wherein the content of SiO 2 is 55 to 65% by weight and Al 2 is based on the total weight of the glass composition for glass fibers.
O 3 content is 17 to 23 wt%, MgO content is 7
~ 15 wt%, CaO content 2-6 wt%, TiO
The content of 2 is 1 to 7% by weight, and SiO 2 , Al
The total content of 2 O 3 , MgO, CaO and TiO 2 is 97.
It is characterized in that it is at least wt%.
【００１３】本発明のガラス繊維用ガラス組成物におい
ては、ＳｉＯ2の含有量とＡｌ2Ｏ3の含有量との合計含
有量が７９〜８２重量％であり、該合計含有量をＣａＯ
の含有量で除した値が１４〜４１であることが好まし
い。また、上記基本組成以外の成分として、ＺｒＯ2、
Ｆｅ2Ｏ3及びＮａ2Ｏからなる群より選ばれる少なくと
も１つの化合物を含有せしめることが可能である。In the glass composition for glass fiber of the present invention, the total content of SiO 2 and Al 2 O 3 is 79 to 82% by weight, and the total content is CaO.
The value divided by the content of is preferably 14 to 41. Further, as a component other than the above basic composition, ZrO 2 ,
It is possible to incorporate at least one compound selected from the group consisting of Fe 2 O 3 and Na 2 O.
【００１４】本発明は、また、上記ガラス繊維用ガラス
組成物からなることを特徴とするガラス繊維、上記ガラ
ス繊維を含むことを特徴とするガラス繊維布、上記ガラ
ス繊維と、熱可塑性樹脂及び熱硬化性樹脂からなる群よ
り選ばれる少なくとも１つの樹脂と、を含むことを特徴
とするガラス繊維強化樹脂、及び、上記ガラス繊維強化
樹脂からなるガラス繊維強化樹脂層と、該ガラス繊維強
化樹脂層上に形成された導体層と、を備えることを特徴
とする積層板を提供するものである。The present invention also relates to a glass fiber characterized by comprising the above glass composition for glass fiber, a glass fiber cloth characterized by containing the above glass fiber, the above glass fiber, a thermoplastic resin, and a thermoplastic resin. At least one resin selected from the group consisting of curable resins, and a glass fiber reinforced resin layer comprising the above glass fiber reinforced resin, and a glass fiber reinforced resin layer on the glass fiber reinforced resin layer And a conductor layer formed on the substrate.
【００１５】[0015]
【発明の実施の形態】上述のように、本発明のガラス繊
維用ガラス組成物は、ＳｉＯ2、Ａｌ2Ｏ3、ＭｇＯ、Ｃ
ａＯ及びＴｉＯ2からなる基本組成を有しており、基本
組成の含有量は以下の範囲内にあることを特徴としてい
る。なお、含有量はガラス繊維用ガラス組成物の全重量
を基準としたものである。
（１）ＳｉＯ2：５５〜６５重量％
（２）Ａｌ2Ｏ3：１７〜２３重量％
（３）ＭｇＯ：７〜１５重量％
（４）ＣａＯ：２〜６重量％
（５）ＴｉＯ2：１〜７重量％
（６）上記（１）〜（５）の合計：９７重量％以上BEST MODE FOR CARRYING OUT THE INVENTION As described above, the glass composition for glass fiber of the present invention comprises SiO 2 , Al 2 O 3 , MgO and C.
It has a basic composition consisting of aO and TiO 2 , and is characterized in that the content of the basic composition is within the following range. The content is based on the total weight of the glass composition for glass fibers. (1) SiO 2: 55~65 wt% (2) Al 2 O 3 : 17~23 wt% (3) MgO: 7~15 wt% (4) CaO: 2~6 wt% (5) TiO 2: 1 to 7% by weight (6) Sum of (1) to (5) above: 97% by weight or more
【００１６】本発明のガラス繊維用ガラス組成物は上記
組成を有することから、ガラス繊維製造時における紡糸
温度を低く抑えることができ、作業温度範囲を充分に広
くすることが可能になる。具体的には、紡糸温度として
１０００ポイズ温度を採用した場合に、紡糸温度を１３
００℃〜１４００℃（典型的には１３３０℃〜１３８０
℃）にすることができ、作業温度範囲を２０℃以上（典
型的には３０℃以上）にすることが可能になる。Since the glass composition for glass fibers of the present invention has the above composition, the spinning temperature during the production of glass fibers can be kept low, and the working temperature range can be sufficiently widened. Specifically, when 1000 poise temperature is adopted as the spinning temperature, the spinning temperature is 13
00 ° C-1400 ° C (typically 1330 ° C-1380 ° C)
C.), which allows the working temperature range to be 20.degree. C. or higher (typically 30.degree. C. or higher).
【００１７】特公昭４８−３０１２５号に開示されたＳ
ガラスの１０００ポイズ温度は約１４７０℃であり、液
相温度は約１４６５℃であるため、１０００ポイズ温度
を採用した場合の紡糸温度は約１４７０℃であり作業温
度範囲は約５℃である。そして、特開平８−２３１２４
０号公報に開示されたガラス組成物においても、紡糸温
度はＳガラスの１４００℃半ば（１４４５℃〜１４６６
℃）であり、作業温度範囲は１０℃前後である。したが
って、本発明のガラス繊維用ガラス組成物は、上記両公
報に開示されたガラス組成物に比較すると、紡糸温度が
圧倒的に低いために、紡糸に必要とされるエネルギーを
充分に低減することができるようになり、作業温度範囲
も充分に広いために、紡糸の安定性を向上させることが
可能になる。S disclosed in Japanese Examined Patent Publication No. 48-30125
Since 1000 poise temperature of glass is about 1470 ° C. and liquidus temperature is about 1465 ° C., spinning temperature when 1000 poise temperature is adopted is about 1470 ° C. and working temperature range is about 5 ° C. And, Japanese Patent Laid-Open No. 8-23124
Also in the glass composition disclosed in Japanese Patent No. 0, the spinning temperature is in the mid 1400 ° C of S glass (1445 ° C to 1466).
C.) and the working temperature range is around 10.degree. Therefore, the glass composition for glass fibers of the present invention has a spinning temperature that is predominantly low as compared with the glass compositions disclosed in the above publications, and therefore the energy required for spinning is sufficiently reduced. Since the working temperature range is sufficiently wide, the spinning stability can be improved.
【００１８】本発明のガラス繊維用ガラス組成物は、ま
た、上記構成を有することから、引張強度及び引張弾性
率の高いガラス繊維を得ることが可能となる。具体的に
は、ガラス繊維モノフィラメントとして、３．５ＧＰａ
以上（典型的には３．５〜４．５ＧＰａ）の引張強度、
８０ＧＰａ以上（典型的には８３〜９０ＧＰａ）の引張
弾性率を発揮するガラス繊維を得ることができる。かか
る引張強度及び引張弾性率は、高強度ガラス繊維用のガ
ラス素材として知られるＳガラス（特公昭４８−３０１
２５号公報）と同等又はそれ以上であるため、薄物のガ
ラス繊維布（ガラス繊維織物等）として用いた場合に曲
がりやしわの発生が防止される。Since the glass composition for glass fibers of the present invention has the above-mentioned constitution, it becomes possible to obtain glass fibers having high tensile strength and tensile elastic modulus. Specifically, as a glass fiber monofilament, 3.5 GPa
The above (typically 3.5 to 4.5 GPa) tensile strength,
A glass fiber exhibiting a tensile elastic modulus of 80 GPa or more (typically 83 to 90 GPa) can be obtained. Such tensile strength and tensile elastic modulus are S glass (Japanese Patent Publication No. 48-301) known as a glass material for high strength glass fibers.
No. 25), it is possible to prevent the occurrence of bending and wrinkles when used as a thin glass fiber cloth (glass fiber woven fabric etc.).
【００１９】本発明のガラス繊維用ガラス組成物は、高
い引張強度及び引張弾性率を発揮するのみならず、誘電
率及び誘電正接、並びに熱膨張係数においても好適な値
を示す。すなわち、誘電率及び誘電正接、並びに熱膨張
係数の数値がいずれも低く、本発明のガラス繊維用ガラ
ス組成物からなるガラス繊維をプリント配線板等の積層
板に適用した場合に、積層板の絶縁性を向上させ誘電率
を低く抑えることが可能になる。具体的には、本発明の
ガラス繊維用ガラス組成物は、１ＭＨｚにおける誘電率
が５〜６（典型的には５．５〜５．８）であり、１ＭＨ
ｚにおける誘電正接が０．００１５程度であり、２００
℃における熱膨張係数は３０×１０-7〜３５×１０-7で
ある。The glass composition for glass fibers of the present invention not only exhibits high tensile strength and tensile elastic modulus, but also exhibits suitable values in dielectric constant, dielectric loss tangent, and thermal expansion coefficient. That is, when the dielectric constant, the dielectric loss tangent, and the coefficient of thermal expansion are both low, when the glass fiber comprising the glass composition for glass fiber of the present invention is applied to a laminated board such as a printed wiring board, insulation of the laminated board It is possible to improve the property and suppress the dielectric constant to a low level. Specifically, the glass composition for glass fibers of the present invention has a dielectric constant of 5 to 6 (typically 5.5 to 5.8) at 1 MHz and a dielectric constant of 1 MH.
The dielectric loss tangent at z is about 0.0015,
The coefficient of thermal expansion at C is 30 × 10 −7 to 35 × 10 −7 .
【００２０】本発明のガラス繊維用ガラス組成物におい
て、ＳｉＯ2、Ａｌ2Ｏ3、ＭｇＯ、ＣａＯ及びＴｉＯ2の
含有量が上記の範囲外である場合は、上述した効果を得
ることができない。In the glass composition for glass fiber of the present invention, if the contents of SiO 2 , Al 2 O 3 , MgO, CaO and TiO 2 are out of the above ranges, the above effects cannot be obtained.
【００２１】すなわち、ＳｉＯ2の含有量がガラス繊維
用ガラス組成物の全重量を基準として５５重量％未満で
ある場合は、得られるガラス繊維の引張強度及び引張弾
性率が不充分になる。一方、６５重量％を越す場合は、
１０００ポイズ温度が高くなりすぎてガラス繊維の製造
効率が低下する。本発明においては、ＳｉＯ2の含有量
は、ガラス繊維用ガラス組成物の全重量を基準として５
８〜６３重量％であることが好ましく、５９〜６２重量
％であることがより好ましい。That is, when the content of SiO 2 is less than 55% by weight based on the total weight of the glass composition for glass fiber, the tensile strength and tensile elastic modulus of the obtained glass fiber are insufficient. On the other hand, if it exceeds 65% by weight,
1000 Poise temperature becomes too high, and the production efficiency of glass fiber decreases. In the present invention, the content of SiO 2 is 5 based on the total weight of the glass composition for glass fiber.
It is preferably from 8 to 63% by weight, more preferably from 59 to 62% by weight.
【００２２】そして、Ａｌ2Ｏ3の含有量がガラス繊維用
ガラス組成物の全重量を基準として１７重量％未満であ
る場合は、得られるガラス繊維の引張強度及び引張弾性
率が不充分になる。一方、２３重量％を越す場合は、液
相温度が高くなりすぎて紡糸困難となる。本発明におい
ては、Ａｌ2Ｏ3の含有量は、ガラス繊維用ガラス組成物
の全重量を基準として１８〜２２重量％であることが好
ましく、１９〜２２重量％であることがより好ましい。When the content of Al 2 O 3 is less than 17% by weight based on the total weight of the glass composition for glass fiber, the tensile strength and tensile elastic modulus of the obtained glass fiber are insufficient. . On the other hand, when it exceeds 23% by weight, the liquidus temperature becomes too high and spinning becomes difficult. In the present invention, the content of Al 2 O 3 is preferably 18 to 22% by weight, and more preferably 19 to 22% by weight, based on the total weight of the glass composition for glass fibers.
【００２３】また、ＭｇＯの含有量がガラス繊維用ガラ
ス組成物の全重量を基準として７重量％未満である場合
は、１０００ポイズ温度が高くなりすぎてガラス繊維の
製造効率が低下する。一方、１５重量％を越す場合は、
作業温度範囲の確保が困難となる。本発明においては、
ＭｇＯの含有量は、ガラス繊維用ガラス組成物の全重量
を基準として９〜１３重量％であることが好ましく、１
０〜１３重量％であることがより好ましい。When the content of MgO is less than 7% by weight based on the total weight of the glass composition for glass fiber, the 1000 poise temperature becomes too high and the production efficiency of glass fiber decreases. On the other hand, if it exceeds 15% by weight,
It is difficult to secure the working temperature range. In the present invention,
The content of MgO is preferably 9 to 13% by weight based on the total weight of the glass composition for glass fibers, and 1
It is more preferably 0 to 13% by weight.
【００２４】そして、ＣａＯの含有量がガラス繊維用ガ
ラス組成物の全重量を基準として２重量％未満である場
合は、作業温度範囲が狭くなりガラス繊維の安定製造す
ることが困難になる。一方、６重量％を越す場合は、引
張強度が不充分になるとともに、熱膨張係数及び誘電率
の値が上昇する。本発明においては、ＣａＯの含有量
は、ガラス繊維用ガラス組成物の全重量を基準として２
〜５重量％であることが好ましく、３〜５重量％である
ことがより好ましい。When the content of CaO is less than 2% by weight based on the total weight of the glass composition for glass fiber, the working temperature range is narrowed and it becomes difficult to stably manufacture the glass fiber. On the other hand, when it exceeds 6% by weight, the tensile strength becomes insufficient and the values of the thermal expansion coefficient and the dielectric constant increase. In the present invention, the content of CaO is 2 based on the total weight of the glass composition for glass fibers.
It is preferably ˜5% by weight, more preferably 3 to 5% by weight.
【００２５】また、ＴｉＯ2の含有量がガラス繊維用ガ
ラス組成物の全重量を基準として１重量％未満である場
合は、１０００ポイズ温度が高くなりすぎてガラス繊維
の製造効率が低下するとともに、得られるガラス繊維の
引張強度及び引張弾性率が不充分になる。一方、７重量
％を越す場合は、液相温度が高くなりすぎるとともに、
誘電率の値が上昇する。本発明においては、ＴｉＯ2の
含有量は、ガラス繊維用ガラス組成物の全重量を基準と
して２〜６重量％であることが好ましく、２〜５重量％
であることがより好ましい。When the content of TiO 2 is less than 1% by weight based on the total weight of the glass composition for glass fiber, the 1000 poise temperature becomes too high and the production efficiency of glass fiber decreases, and The tensile strength and tensile elastic modulus of the obtained glass fiber are insufficient. On the other hand, if it exceeds 7% by weight, the liquidus temperature becomes too high, and
The value of the dielectric constant increases. In the present invention, the content of TiO 2 is preferably 2 to 6% by weight, and 2 to 5% by weight based on the total weight of the glass composition for glass fibers.
Is more preferable.
【００２６】なお、ＳｉＯ2、Ａｌ2Ｏ3、ＭｇＯ、Ｃａ
Ｏ及びＴｉＯ2の合計含有量が、ガラス繊維用ガラス組
成物の全重量を基準として９７重量％未満であるとき
は、他の不純物成分の含有量が相対的に多くなるため
に、ガラス繊維製造時における紡糸温度の低減及び／又
は作業温度範囲の拡大を図ることができなくなる。本発
明においては、上記合計重量は、ガラス繊維用ガラス組
成物の全重量を基準として９７．５重量％以上であるこ
とが好ましく、９８重量％以上であることがより好まし
い。SiO 2 , Al 2 O 3 , MgO, Ca
When the total content of O and TiO 2 is less than 97% by weight based on the total weight of the glass composition for glass fiber, the content of other impurity components becomes relatively large, and thus the glass fiber production It becomes impossible to reduce the spinning temperature and / or expand the working temperature range. In the present invention, the total weight is preferably 97.5% by weight or more, and more preferably 98% by weight or more, based on the total weight of the glass composition for glass fibers.
【００２７】本発明のガラス繊維用ガラス組成物におい
ては、ＳｉＯ2の含有量（Ｘとする）とＡｌ2Ｏ3の含有
量（Ｙとする）との合計含有量（Ｘ＋Ｙ）が７９〜８２
重量％であり、該合計含有量をＣａＯの含有量（Ｚとす
る）で除した値（（Ｘ＋Ｙ）／Ｚ）が１４〜４１である
ことが好ましい。Ｘ＋Ｙの値が大きい場合はガラス組成
物の粘度が高くなる傾向がある。また、ＣａＯは融剤の
働きを有しているために、Ｚの値が大きい場合はガラス
組成物の溶融を促進する。そこで、Ｘ＋Ｙの値を７９〜
８２重量％と大きくして高弾性率化を図るとともに、高
いＸ＋Ｙの値に起因する溶融粘度の向上を、（Ｘ＋Ｙ）
／Ｚの値が１４〜４１となるような範囲でＣａＯを添加
することにより抑制し、溶融性及び紡糸性を担保するこ
とができるようになる。すなわち、（Ｘ＋Ｙ）／Ｚの値
を上記範囲内とすることで、高い弾性率と優れた溶融性
（紡糸性）を両立することが可能になる。In the glass composition for glass fiber of the present invention, the total content (X + Y) of the content of SiO 2 (denoted as X) and the content of Al 2 O 3 (denoted as Y) is 79 to 82.
The value ((X + Y) / Z) obtained by dividing the total content by the CaO content (denoted by Z) is preferably 14 to 41. When the value of X + Y is large, the viscosity of the glass composition tends to be high. Further, since CaO has a function as a flux, it accelerates melting of the glass composition when the value of Z is large. Therefore, the value of X + Y is 79-
It is increased to 82% by weight to achieve a high elastic modulus and to improve the melt viscosity due to the high value of X + Y (X + Y).
By adding CaO in such a range that the value of / Z is 14 to 41, it is possible to suppress it and to secure the meltability and spinnability. That is, by setting the value of (X + Y) / Z within the above range, it becomes possible to achieve both high elastic modulus and excellent meltability (spinnability).
【００２８】本発明のガラス繊維用ガラス組成物は、Ｓ
ｉＯ2、Ａｌ2Ｏ3、ＭｇＯ、ＣａＯ及びＴｉＯ2を基本組
成としているが、これら以外の成分（以下「微量成分」と
いう。）を、ガラス繊維用ガラス組成物の全重量を基準
として３重量％未満含有していてもよい。微量成分の化
学種は、上記基本組成と併用することによりガラスを形
成可能なものでなければならならない。かかる成分して
は、Ｆｅ2Ｏ3、Ｎａ 2Ｏ、Ｋ2Ｏ、ＺｒＯ2、ＭｏＯ2、Ｃ
ｒ2Ｏ3等が挙げられ、本発明においては、ＺｒＯ2、Ｆ
ｅ2Ｏ3及びＮａ2Ｏからなる群より選ばれる少なくとも
１つの化合物が好ましい。The glass composition for glass fiber of the present invention comprises S
iO2, Al2O3, MgO, CaO and TiO2The basic set
However, other components (hereinafter referred to as “trace components”)
Say. ) Based on the total weight of the glass composition for glass fiber
May be contained as less than 3% by weight. Trace component conversion
As for the academic type, the glass is shaped by combining with the above basic composition.
It must be feasible. As such ingredients
Is Fe2O3, Na 2O, K2O, ZrO2, MoO2, C
r2O3And the like. In the present invention, ZrO2, F
e2O3And Na2At least selected from the group consisting of O
One compound is preferred.
【００２９】ガラス繊維用ガラス組成物がＺｒＯ2、Ｆ
ｅ2Ｏ3及びＮａ2Ｏからなる群より選ばれる少なくとも
１つの化合物を微量成分として含む場合は、ＺｒＯ2の
含有量はガラス繊維用ガラス組成物の全重量を基準とし
て２重量％以下であることが好ましい。ＺｒＯ2の含有
量が２重量％を越す場合は、液相温度が上昇する傾向に
ある。また、Ｆｅ2Ｏ3の含有量はガラス繊維用ガラス組
成物の全重量を基準として０．５重量％以下であること
が好ましい。Ｆｅ2Ｏ3の含有量が０．５重量％を越す場
合は、好ましくない色を与える場合がある。そして、Ｎ
ａ2Ｏの含有量はガラス繊維用ガラス組成物の全重量を
基準として０．５重量％以下であることが好ましい。Ｎ
ａ2Ｏの含有量が０．５重量％を越す場合は、誘電特性
が悪化する傾向にある。The glass composition for glass fiber is ZrO 2 , F
When at least one compound selected from the group consisting of e 2 O 3 and Na 2 O is contained as a trace component, the content of ZrO 2 is 2% by weight or less based on the total weight of the glass composition for glass fiber. It is preferable. When the content of ZrO 2 exceeds 2% by weight, the liquidus temperature tends to rise. Further, the content of Fe 2 O 3 is preferably 0.5% by weight or less based on the total weight of the glass composition for glass fibers. When the content of Fe 2 O 3 exceeds 0.5% by weight, it may give an unfavorable color. And N
The content of a 2 O is preferably 0.5% by weight or less based on the total weight of the glass composition for glass fibers. N
When the content of a 2 O exceeds 0.5% by weight, the dielectric properties tend to deteriorate.
【００３０】本発明のガラス繊維は、以上説明したガラ
ス繊維用ガラス組成物からなるものである。本発明にお
けるガラス繊維は、ガラス繊維のモノフィラメント、複
数のガラス繊維モノフィラメントからなるガラス繊維ス
トランド、ガラス繊維ストランドに撚りをかけて得られ
るガラス繊維ヤーン、のいずれの態様をとってもよい。
ガラス繊維のモノフィラメントの繊維径は、３〜３０μ
ｍが好適であり、ガラス繊維ストランドは、当該モノフ
ィラメントを例えば５０〜８００本集束することにより
得ることが好ましい。また、ガラス繊維ヤーンは、当該
ガラス繊維ストランドに例えば１３回／２５ｍｍまたは
それ以下の撚りをかけることにより製造することが好ま
しい。なお、本発明のガラス繊維は、紙またはプラスチ
ック製の芯材の周囲に１０〜２００ｋｍ程度巻き付けた
巻糸体として提供されてもよく、あるいは２５ｍｍ程度
に切断したガラス繊維（ガラス繊維チョップドストラン
ド等）として提供されてもよい。なお、本発明のガラス
繊維は、皮膜形成剤（澱粉、ポリビニルアルコール等）
と潤滑剤（油脂等）を主成分とするガラス繊維用集束剤
や、シランカップリング剤等の表面処理剤を有していて
もよい。The glass fiber of the present invention comprises the glass composition for glass fiber described above. The glass fiber in the present invention may take any form of a monofilament of glass fiber, a glass fiber strand composed of a plurality of glass fiber monofilaments, and a glass fiber yarn obtained by twisting the glass fiber strand.
The fiber diameter of the monofilament of glass fiber is 3 to 30 μm.
m is preferable, and the glass fiber strand is preferably obtained by focusing 50 to 800 monofilaments. Further, the glass fiber yarn is preferably produced by twisting the glass fiber strand at, for example, 13 times / 25 mm or less. The glass fiber of the present invention may be provided as a wound body wound around a core material made of paper or plastic for about 10 to 200 km, or a glass fiber cut to about 25 mm (glass fiber chopped strand etc.). May be provided as. The glass fiber of the present invention is a film-forming agent (starch, polyvinyl alcohol, etc.)
And a glass fiber sizing agent containing a lubricant (oil or the like) as a main component, or a surface treatment agent such as a silane coupling agent.
【００３１】ガラス繊維の製造方法としては、再溶融
法、直接溶融法等の公知の方法が採用可能であり、これ
らの公知の方法によれば、通常、溶融させたガラス組成
物を数百〜数千個の白金ノズルから高速で引きだすこと
によりガラス組成物を繊維化する。As a method for producing the glass fiber, known methods such as a remelting method and a direct melting method can be adopted. According to these known methods, a molten glass composition is usually used in a range of several hundreds. The glass composition is made into a fiber by drawing it at high speed from thousands of platinum nozzles.
【００３２】本発明のガラス繊維布は、上記のガラス繊
維を含むものであり、ガラス繊維編組物とガラス繊維不
織布とに大別することができる。ここで、ガラス繊維編
組物とは、ガラス繊維を編む、組む等して、互いに絡み
合うように集合させたものをいい、ガラス繊維織物、ガ
ラス繊維編物、ガラス繊維組布等の態様が含まれる。な
お、本発明のガラス繊維布は、皮膜形成剤（澱粉、ポリ
ビニルアルコール等）と潤滑剤（油脂等）を主成分とす
るガラス繊維用集束剤や、シランカップリング剤等の表
面処理剤を有していてもよい。The glass fiber cloth of the present invention contains the above glass fibers and can be roughly classified into a glass fiber braid and a glass fiber nonwoven fabric. Here, the glass fiber braid refers to a material in which glass fibers are knitted, braided, or the like so as to be entwined with each other, and includes embodiments such as a glass fiber woven fabric, a glass fiber braid, and a glass fiber braided fabric. The glass fiber cloth of the present invention has a glass fiber sizing agent containing a film forming agent (starch, polyvinyl alcohol, etc.) and a lubricant (oil, etc.) as main components, and a surface treatment agent such as a silane coupling agent. You may have.
【００３３】本発明のガラス繊維強化樹脂は、上記のガ
ラス繊維と、熱可塑性樹脂及び熱硬化性樹脂からなる群
より選ばれる少なくとも１つの樹脂とを含むものであ
る。なお、本発明のガラス繊維強化樹脂におけるガラス
繊維には、上記本発明のガラス繊維布も含まれる。本発
明のガラス繊維強化樹脂における熱可塑性樹脂として
は、ポリアミド（ナイロン）、ポリアセタール、ポリカ
ーボネート、ポリ塩化ビニル、ＡＢＳ、ポリサルフォ
ン、ポリエチレン、ポリプロピレン、ポリスチレン、
（メタ）アクリル樹脂、フッ素樹脂、飽和ポリエステル
樹脂等が例示でき、熱硬化性樹脂としては、不飽和ポリ
エステル樹脂、エポキシ樹脂、メラミン樹脂等が例示で
きる。なお、ガラス繊維強化樹脂が熱硬化性樹脂を含む
場合は、本発明のガラス繊維強化樹脂は、当該熱硬化性
樹脂が完全硬化したものであっても、半硬化の状態のプ
リプレグであってもよい。そして、本発明のガラス繊維
強化樹脂には、必要に応じて、低収縮剤、難燃剤、難燃
助剤、可塑剤、酸化防止剤、紫外線吸収剤、着色剤、顔
料、充填剤等の添加剤を含有させてもよい。The glass fiber reinforced resin of the present invention contains the above glass fiber and at least one resin selected from the group consisting of thermoplastic resins and thermosetting resins. The glass fiber in the glass fiber reinforced resin of the present invention includes the glass fiber cloth of the present invention. As the thermoplastic resin in the glass fiber reinforced resin of the present invention, polyamide (nylon), polyacetal, polycarbonate, polyvinyl chloride, ABS, polysulfone, polyethylene, polypropylene, polystyrene,
Examples of the (meth) acrylic resin, fluororesin, saturated polyester resin and the like, and examples of the thermosetting resin include unsaturated polyester resin, epoxy resin and melamine resin. When the glass fiber reinforced resin contains a thermosetting resin, the glass fiber reinforced resin of the present invention may be a completely cured thermosetting resin or a semi-cured prepreg. Good. And, to the glass fiber reinforced resin of the present invention, if necessary, a low shrinkage agent, a flame retardant, a flame retardant aid, a plasticizer, an antioxidant, an ultraviolet absorber, a colorant, a pigment, a filler, etc. are added. An agent may be included.
【００３４】ガラス繊維と熱可塑性樹脂とを含むガラス
繊維強化樹脂の製造方法としては、スタンパブルシート
成形法等の公知の方法が採用でき、ガラス繊維と熱硬化
性樹脂とを含むガラス繊維強化樹脂の製造方法として
は、ハンドレイアップ法、スプレーアップ法、レジント
ランスファー法、シートモールディングコンパウンド
（ＳＭＣ）を用いたプレス成形等の公知の方法が採用で
きる。As a method for producing a glass fiber reinforced resin containing glass fibers and a thermoplastic resin, a known method such as a stampable sheet molding method can be adopted, and a glass fiber reinforced resin containing glass fibers and a thermosetting resin. As a manufacturing method of the above, known methods such as a hand lay-up method, a spray-up method, a resin transfer method, and press molding using a sheet molding compound (SMC) can be adopted.
【００３５】本発明の積層板は、上記ガラス繊維強化樹
脂からなるガラス繊維強化樹脂層と、該ガラス繊維強化
樹脂層上に形成された導体層とを備えるものである。本
発明の積層板に用いられるガラス繊維強化樹脂として
は、本発明のガラス繊維と熱硬化性樹脂とを含むもので
あることが好ましく、熱硬化性樹脂はエポキシ樹脂の硬
化物であることが好ましい。また、上記導体層として
は、銅、銀、金等からなる導体層が挙げられる。本発明
の積層板は絶縁性に優れ誘電率も低いために、プリント
配線板として用いることが可能である。The laminated board of the present invention comprises a glass fiber reinforced resin layer made of the above glass fiber reinforced resin and a conductor layer formed on the glass fiber reinforced resin layer. The glass fiber reinforced resin used in the laminate of the present invention preferably contains the glass fiber of the present invention and a thermosetting resin, and the thermosetting resin is preferably a cured product of an epoxy resin. The conductor layer may be a conductor layer made of copper, silver, gold or the like. Since the laminated board of the present invention has excellent insulating properties and a low dielectric constant, it can be used as a printed wiring board.
【００３６】[0036]
【実施例】以下、本発明の好適な実施例についてさらに
詳細に説明するが、本発明はこれらの実施例に限定され
るものではない。EXAMPLES Hereinafter, preferred examples of the present invention will be described in more detail, but the present invention is not limited to these examples.
【００３７】（実施例１〜６）表１に示す組成となるよ
うにガラス原料を調合し、それを白金ルツボに入れ、電
気炉中で１５５０℃において８時間攪拌しつつ溶融させ
た。次いで、溶融ガラスをカーボン板上に流し出し、実
施例１〜６のガラス繊維用ガラス組成物（ガラスカレッ
ト）を作製した。そして、徐冷して得られたガラスカレ
ットを用い、以下の方法にしたがって、１０００ポイズ
温度、液相温度、作業温度範囲、引張強度、引張弾性
率、熱膨張係数、誘電率及び誘電正接を測定した。かか
る特性の測定結果を組成と共に表１に示す。(Examples 1 to 6) Glass raw materials were prepared so as to have the compositions shown in Table 1, which were placed in a platinum crucible and melted in an electric furnace while stirring at 1550 ° C for 8 hours. Next, the molten glass was poured onto a carbon plate to prepare glass compositions for glass fiber (glass cullet) of Examples 1 to 6. Then, using the glass cullet obtained by slow cooling, 1000 poise temperature, liquidus temperature, working temperature range, tensile strength, tensile elastic modulus, thermal expansion coefficient, dielectric constant and dielectric loss tangent were measured according to the following methods. did. The measurement results of such properties are shown in Table 1 together with the composition.
【００３８】［１０００ポイズ温度］ガラスカレットを
溶融し、高温回転粘度計（芝浦システム株式会社製）で
１０００ポイズを示す温度（℃）を測定した。[1000 Poise Temperature] The glass cullet was melted and the temperature (° C.) showing 1000 poise was measured with a high temperature rotational viscometer (Shibaura System Co., Ltd.).
【００３９】［液相温度］ガラスカレットの一部を２９
７〜５００μｍの粉末にして白金ボートに入れた。この
白金ボートを様々な温度に設定された電気炉内（設定温
度は１２５０〜１５００℃の範囲内）に入れて１４時間
保持した後、冷却し、失透の発現の有無を顕微鏡で観察
して、失透が発現が見られた電気炉の設定温度を液相温
度とした。[Liquid phase temperature] 29 parts of the glass cullet
It was made into a powder of 7 to 500 μm and put in a platinum boat. This platinum boat was placed in an electric furnace set to various temperatures (set temperature was within a range of 1250 to 1500 ° C) and kept for 14 hours, then cooled, and the presence or absence of devitrification was observed with a microscope. The liquidus temperature was the set temperature of the electric furnace where devitrification was observed.
【００４０】［作業温度範囲］上記のようにして得られ
た１０００ポイズ温度から液相温度を差し引いた値を作
業温度範囲（℃）とした。[Working temperature range] The working temperature range (° C) was defined as the value obtained by subtracting the liquidus temperature from the 1000 poise temperature obtained as described above.
【００４１】［引張強度及び引張弾性率］１ホールの白
金製ブッシング用いて、温度１３２０〜１４２０℃、紡
糸速度１１００ｍ／分の条件でモノフィラメントのガラ
ス繊維を得た。得られたモノフィラメントを２５ｃｍの
長さに切り、引張強度測定用試料とした。この試料をモ
ノフィラメントの長さ方向に沿って、２．５ｃｍ×１ｃ
ｍの開口４個を有する板紙上に取り付け、この板紙の端
部を切り取り、レーザー外径測定器で試料の直径を測定
した。モノフィラメントを板紙の各開口間で接着し、開
口部毎に切り取り、２．５ｃｍのモノフィラメントにつ
いて、テンシロンＵＴＭを用いて引張強度（ＧＰａ）及
び引張弾性率（ＧＰａ）を測定し、６０本測定の中央値
をモノフィラメントの引張強度及び引張弾性率とした。[Tensile Strength and Tensile Elastic Modulus] Using a 1-hole platinum bushing, monofilament glass fibers were obtained at a temperature of 1320 to 1420 ° C. and a spinning speed of 1100 m / min. The obtained monofilament was cut into a length of 25 cm and used as a sample for measuring tensile strength. This sample is 2.5 cm x 1 c along the length of the monofilament.
It was mounted on a paperboard having 4 openings of m, the end of this paperboard was cut off, and the diameter of the sample was measured with a laser outer diameter measuring instrument. The monofilament is adhered between the openings of the paperboard, cut out for each opening, and the tensile strength (GPa) and tensile elastic modulus (GPa) of the 2.5cm monofilament are measured using Tensilon UTM, and the center of 60 measurements is performed. The values were taken as the tensile strength and tensile elastic modulus of the monofilament.
【００４２】［熱膨張係数］徐冷したガラスカレットを
１４ｍｍ×８ｍｍ×５ｍｍに研磨したものを試料とし、
サーモメカニカルアナライザー（Thermo Mechanical An
alyzer、真空理工株式会社製、ＴＭ−７０００型）を用
いて熱膨張係数を測定した。[Thermal expansion coefficient] A slowly cooled glass cullet polished to 14 mm x 8 mm x 5 mm was used as a sample.
Thermo Mechanical Analyzer
The thermal expansion coefficient was measured using an alyzer, manufactured by Vacuum Riko Co., Ltd., TM-7000 type).
【００４３】［誘電率及び誘電正接］徐冷したガラスカ
レットを直径４５ｍｍ、厚さ２ｍｍに両面光学研磨した
ものを試料とし、ＬＣＲメーター（横河・ヒューレット
・パッカード株式会社製、ＨＰ４２８４Ａ）を用いて、
室温における周波数１ＭＨｚでの誘電率及び誘電正接を
測定した。[Dielectric constant and dielectric loss tangent] A gradually cooled glass cullet having a diameter of 45 mm and a thickness of 2 mm, which was optically polished on both sides, was used as a sample and an LCR meter (HP4284A manufactured by Yokogawa-Hewlett-Packard Co., Ltd.) was used. ,
The dielectric constant and dielectric loss tangent at a frequency of 1 MHz at room temperature were measured.
【００４４】[0044]
【表１】 [Table 1]
【００４５】（比較例１〜４）表２に示す組成となるよ
うにガラス原料を調合し、実施例１〜６と同様にして比
較例１〜４のガラス繊維用ガラス組成物（ガラスカレッ
ト）を作製した。また、実施例１〜６と同様にして、比
較例１〜４の１０００ポイズ温度、液相温度、作業温度
範囲、引張強度、引張弾性率、熱膨張係数、誘電率及び
誘電正接を測定した。かかる特性の測定結果を組成と共
に表２に示す。なお、比較例１は、特公昭４８−３０１
２５号公報における実施例１に相当する組成である。(Comparative Examples 1 to 4) Glass raw materials were prepared so as to have the compositions shown in Table 2, and the glass compositions for glass fibers (glass cullet) of Comparative Examples 1 to 4 were prepared in the same manner as in Examples 1 to 6. Was produced. Also, in the same manner as in Examples 1 to 6, the 1000 poise temperature, liquidus temperature, working temperature range, tensile strength, tensile elastic modulus, thermal expansion coefficient, dielectric constant and dielectric loss tangent of Comparative Examples 1 to 4 were measured. The measurement results of such properties are shown in Table 2 together with the composition. In addition, Comparative Example 1 is Japanese Patent Publication No. 48-301.
It has a composition corresponding to Example 1 in Japanese Patent Laid-Open No. 25.
【００４６】[0046]
【表２】 [Table 2]
【００４７】[0047]
【発明の効果】以上説明したように、本発明によれば、
ガラス繊維製造時における紡糸温度を低く抑えることが
でき、ガラス繊維製造時の作業温度範囲を充分に広くす
ることも可能で、高強度且つ高弾性率のガラス繊維を作
製することが可能な、ガラス繊維用ガラス組成物を提供
することが可能になる。また、かかるガラス繊維用ガラ
ス組成物からなる高強度且つ高弾性率のガラス繊維、こ
のガラス繊維を含むガラス繊維編組物、このガラス繊維
を含むガラス繊維強化樹脂、及びこのガラス繊維強化樹
脂層を備えた積層板を提供することが可能になる。As described above, according to the present invention,
A glass capable of suppressing the spinning temperature during the production of glass fibers to a low level, sufficiently widening the working temperature range during the production of glass fibers, and capable of producing glass fibers of high strength and high elastic modulus. It becomes possible to provide a glass composition for fibers. Further, a glass fiber having a high strength and a high elastic modulus, which comprises the glass composition for a glass fiber, a glass fiber braid containing the glass fiber, a glass fiber reinforced resin containing the glass fiber, and a glass fiber reinforced resin layer It becomes possible to provide a laminated board having the same structure.
───────────────────────────────────────────────────── フロントページの続き Ｆターム(参考） 4G062 AA05 BB01 DA06 DB04 DC01 DD01 DE01 DF01 EA01 EB01 EB02 EC01 ED03 ED04 EE03 EF01 EG01 FA01 FB03 FC01 FC02 FC03 FD01 FE01 FF01 FG01 FH01 FJ01 FK01 FL01 GA01 GA10 GB01 GC01 GD01 GE01 HH01 HH03 HH05 HH07 HH09 HH11 HH12 HH13 HH15 HH17 HH20 JJ01 JJ03 JJ05 JJ07 JJ10 KK01 KK03 KK05 KK07 KK10 MM01 MM27 NN33 ─────────────────────────────────────────────────── ─── Continued front page F-term (reference) 4G062 AA05 BB01 DA06 DB04 DC01 DD01 DE01 DF01 EA01 EB01 EB02 EC01 ED03 ED04 EE03 EF01 EG01 FA01 FB03 FC01 FC02 FC03 FD01 FE01 FF01 FG01 FH01 FJ01 FK01 FL01 GA01 GA10 GB01 GC01 GD01 GE01 HH01 HH03 HH05 HH07 HH09 HH11 HH12 HH13 HH15 HH17 HH20 JJ01 JJ03 JJ05 JJ07 JJ10 KK01 KK03 KK05 KK07 KK10 MM01 MM27 NN33
Claims (4)
びＴｉＯ2からなる基本組成を有するガラス繊維用ガラ
ス組成物であって、 該ガラス繊維用ガラス組成物の全重量を基準として、 ＳｉＯ2の含有量が５５〜６５重量％、Ａｌ2Ｏ3の含有
量が１７〜２３重量％、ＭｇＯの含有量が７〜１５重量
％、ＣａＯの含有量が２〜６重量％、ＴｉＯ2の含有量
が１〜７重量％であり、且つ、ＳｉＯ2、Ａｌ2Ｏ3、Ｍ
ｇＯ、ＣａＯ及びＴｉＯ2の合計含有量が９７重量％以
上であることを特徴とするガラス繊維用ガラス組成物。1. A glass composition for glass fibers having a basic composition of SiO 2 , Al 2 O 3 , MgO, CaO and TiO 2 , wherein SiO 2 is based on the total weight of the glass composition for glass fibers. The content of 2 is 55 to 65% by weight, the content of Al 2 O 3 is 17 to 23% by weight, the content of MgO is 7 to 15% by weight, the content of CaO is 2 to 6% by weight, and the content of TiO 2 is content is 1-7 wt%, and, SiO 2, Al 2 O 3 , M
A glass composition for glass fiber, wherein the total content of gO, CaO and TiO 2 is 97% by weight or more.
の合計含有量が７９〜８２重量％であり、該合計含有量
をＣａＯの含有量で除した値が１４〜４１であることを
特徴とする請求項１記載のガラス繊維用ガラス組成物。 2. The total content of SiO 2 content and Al 2 O 3 content is 79 to 82 wt%, and the value obtained by dividing the total content by the content of CaO is 14 to 41. The glass composition for glass fiber according to claim 1, wherein
2、Ｆｅ2Ｏ3及びＮａ2Ｏからなる群より選ばれる少なく
とも１つの化合物を含有することを特徴とする請求項１
又は２記載のガラス繊維用ガラス組成物。3. ZrO as a component other than the basic composition
2. At least one compound selected from the group consisting of 2 , Fe 2 O 3 and Na 2 O is contained.
Alternatively, the glass composition for glass fiber according to item 2.
ラス繊維用ガラス組成物からなることを特徴とするガラ
ス繊維。4. A glass fiber comprising the glass composition for glass fiber according to any one of claims 1 to 3.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002286862A JP4244605B2 (en) | 2001-09-28 | 2002-09-30 | Glass composition for glass fiber |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001-303466 | 2001-09-28 | ||
| JP2001303466 | 2001-09-28 | ||
| JP2002286862A JP4244605B2 (en) | 2001-09-28 | 2002-09-30 | Glass composition for glass fiber |
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| Publication Number | Publication Date |
|---|---|
| JP2003171143A true JP2003171143A (en) | 2003-06-17 |
| JP4244605B2 JP4244605B2 (en) | 2009-03-25 |
Family
ID=26623421
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