JPH07291656A - Insulating glass composition - Google Patents

Insulating glass composition

Info

Publication number
JPH07291656A
JPH07291656A JP11477094A JP11477094A JPH07291656A JP H07291656 A JPH07291656 A JP H07291656A JP 11477094 A JP11477094 A JP 11477094A JP 11477094 A JP11477094 A JP 11477094A JP H07291656 A JPH07291656 A JP H07291656A
Authority
JP
Japan
Prior art keywords
glass composition
glass
thermal expansion
insulating glass
pbo
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
Application number
JP11477094A
Other languages
Japanese (ja)
Other versions
JP3424700B2 (en
Inventor
Kanekazu Fukushima
謙和 福嶋
Masahiko Ouchi
雅彦 應治
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Electric Glass Co Ltd
Original Assignee
Nippon Electric Glass Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nippon Electric Glass Co Ltd filed Critical Nippon Electric Glass Co Ltd
Priority to JP11477094A priority Critical patent/JP3424700B2/en
Publication of JPH07291656A publication Critical patent/JPH07291656A/en
Application granted granted Critical
Publication of JP3424700B2 publication Critical patent/JP3424700B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • C03C3/062—Glass compositions containing silica with less than 40% silica by weight
    • C03C3/064—Glass compositions containing silica with less than 40% silica by weight containing boron
    • C03C3/066—Glass compositions containing silica with less than 40% silica by weight containing boron containing zinc
    • 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
    • C03C8/00—Enamels; Glazes; Fusion seal compositions being frit compositions having non-frit additions
    • C03C8/02—Frit compositions, i.e. in a powdered or comminuted form
    • C03C8/04—Frit compositions, i.e. in a powdered or comminuted form containing zinc

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

PURPOSE:To obtain a colorless and transparent glass composition, capable of reducing the softening point without containing PbO, having a thermal expansion coefficient within a specific range without causing adverse effects due to the PbO by comprising Bi2O3 and an alkaline earth metallic oxide in a ZnO- B2O3-SiO2-based glass. CONSTITUTION:This insulating glass composition is obtained by blending 25.0-45.0wt.% ZnO with 15.0-35.0wt.% Bi2O3, 10.0-30.0-wt.% B2O3, 0.5-8.0wt.% SiO2 and 8.0-24.0wt.% total amount of CaO, SrO and BaO. The resultant glass composition is vitrified at <=600 deg.C baking temperature, colorless and transparent and has 60-90X10<-7>/ deg.C thermal expansion coefficient.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】本発明は、絶縁用ガラス組成物に
関するものである。FIELD OF THE INVENTION The present invention relates to an insulating glass composition.

【０００２】[0002]

【従来の技術】アルミナ基板やソーダ石灰ガラス基板を
用いて作製する各種電子部品や表示装置では、電極や抵
抗体を保護したり、絶縁する必要があり、従来よりこの
ような材料としては、ＰｂＯ−Ｂ2 Ｏ3 −ＳｉＯ2 系ガ
ラスが広く使用されている。2. Description of the Related Art In various electronic parts and display devices manufactured by using an alumina substrate or a soda-lime glass substrate, it is necessary to protect or insulate the electrodes and resistors. Conventionally, PbO has been used as such a material. -B 2 O 3 -SiO 2 based glass are widely used.

【０００３】この種のガラスは、一般に絶縁用ガラスと
呼ばれるが、このガラスには、基板上に形成した電極や
抵抗体などの機能材料に狂いが生じないようにしたり、
特にソーダ石灰ガラス基板を使用した場合に、基板の軟
化変形を防ぐ必要があるため、一般に６００℃以下で焼
成できることが要求される。This type of glass is generally called insulating glass, and it is necessary to prevent functional materials such as electrodes and resistors formed on a substrate from being deformed.
In particular, when a soda-lime glass substrate is used, it is necessary to prevent softening and deformation of the substrate, and therefore it is generally required that the substrate can be fired at 600 ° C or lower.

【０００４】そのため従来の絶縁用ガラスでは、ＰｂＯ
が４０〜７５重量％含有され、これによって６００℃以
下の軟化点を達成している。またこの絶縁用ガラスは、
焼成時に失透せず、焼成後の色調が無色透明である。色
調が無色透明であることは、無機顔料を混合して所望の
色調に着色可能となるため、用途によって使い分けがで
きることになる。さらにこの絶縁用ガラスは、基板の反
りやガラスのクラックを防止するため、３０〜３００℃
の温度範囲において６０〜９０×１０-7／℃の熱膨張係
数を有している。Therefore, in the conventional insulating glass, PbO
Is contained in an amount of 40 to 75% by weight, whereby a softening point of 600 ° C. or lower is achieved. In addition, this insulating glass,
It does not devitrify during firing and the color tone after firing is colorless and transparent. When the color tone is colorless and transparent, it is possible to mix the inorganic pigments to give a desired color tone, and thus the color tone can be properly used depending on the application. Further, this insulating glass is 30 to 300 ° C. in order to prevent warpage of the substrate and cracks of the glass.
Has a coefficient of thermal expansion of 60 to 90 × 10 -7 / ° C.

【０００５】[0005]

【発明が解決しようとする課題】しかしながら上記した
絶縁用ガラスは、ＰｂＯを多量に含有することによっ
て、保護層や絶縁層に隣接する機能材料に悪影響を及ぼ
したり、電子部品や表示装置の使用中にＰｂ2+が移動
し、絶縁抵抗値が低下するという問題が発生することが
あった。However, the above-mentioned insulating glass contains a large amount of PbO, so that it adversely affects the functional material adjacent to the protective layer or the insulating layer, or is in use in electronic parts or display devices. There was a problem that Pb 2+ moved to the surface and the insulation resistance value decreased.

【０００６】またこれらの製品を廃棄する場合、ＰｂＯ
によって環境が汚染されないように特別な処理を行う必
要があり、廃棄コストが高くなるという問題もあった。When these products are discarded, PbO is used.
Therefore, it is necessary to perform a special treatment so that the environment is not polluted, and there is also a problem that the disposal cost becomes high.

【０００７】本発明は、上記事情に鑑みなされたもので
あり、焼成温度が６００℃以下で、焼成時に失透し難
く、焼成後の外観が無色透明であり、６０〜９０×１０
-7／℃の熱膨張係数を有し、しかもＰｂＯを含有しない
ため、機能材料に悪影響を及ぼしたり、Ｐｂ2+が移動し
たりすることがなく、廃棄する際にＰｂＯによる環境汚
染が皆無である絶縁用ガラス組成物を提供することを目
的とする。The present invention has been made in view of the above circumstances. The baking temperature is 600 ° C. or lower, devitrification is unlikely to occur during baking, and the appearance after baking is colorless and transparent.
Since it has a coefficient of thermal expansion of -7 / ° C and does not contain PbO, it does not adversely affect the functional material and does not move Pb 2+, and there is no environmental pollution by PbO when it is discarded. It is an object to provide an insulating glass composition.

【０００８】[0008]

【課題を解決するための手段】本発明者等は、種々の実
験を重ねた結果、ＺｎＯ−Ｂ2 Ｏ3 −ＳｉＯ2 系ガラス
に、Ｂｉ2 Ｏ3 とＲＯを所定量含有させることによっ
て、上記目的を達成することが可能であることを見いだ
し、本発明を提案するに至った。Means for Solving the Problems As a result of various experiments, the inventors of the present invention have made ZnO—B 2 O 3 —SiO 2 type glass contain Bi 2 O 3 and RO in a predetermined amount. It has been found that the above object can be achieved, and the present invention has been proposed.

【０００９】すなわち本発明の絶縁用ガラス組成物は、
重量百分率で、ＺｎＯ ２５．０〜４５．０％、Ｂｉ2
Ｏ3 １５．０〜３５．０％、Ｂ2 Ｏ3 １０．０〜３
０．０％、ＳｉＯ2 ０．５〜８．０％、ＣａＯ＋Ｓｒ
Ｏ＋ＢａＯ ８．０〜２４．０％の組成を有することを
特徴とする。That is, the insulating glass composition of the present invention comprises:
By weight percentage, ZnO 25.0-45.0%, Bi 2
O 3 15.0~35.0%, B 2 O 3 10.0~3
0.0%, SiO 2 0.5-8.0%, CaO + Sr
It is characterized by having a composition of O + BaO 8.0 to 24.0%.

【００１０】[0010]

【作用】本発明の絶縁用ガラス組成物の限定理由は、次
のとおりである。The reason for limiting the insulating glass composition of the present invention is as follows.

【００１１】ＺｎＯは、熱膨張係数を下げると共に、軟
化点を下げる成分である。その含有量が、２５．０％よ
り少ないと、軟化点が６００℃を超えてしまい、４５．
０％より多いと、焼成時にガラスが失透しやすくなる。ZnO is a component that lowers the coefficient of thermal expansion and lowers the softening point. If the content is less than 25.0%, the softening point will exceed 600 ° C., and 45.
If it is more than 0%, the glass tends to devitrify during firing.

【００１２】Ｂｉ2 Ｏ3 も軟化点を下げる成分である。
その含有量が、１５．０％より少ないと、軟化点が６０
０℃を超えてしまい、３５．０％より多いと、ガラスが
黒褐色に着色するため用途が制限されてしまう。Bi 2 O 3 is also a component that lowers the softening point.
When the content is less than 15.0%, the softening point is 60.
If the temperature exceeds 0 ° C and is higher than 35.0%, the glass is colored blackish brown, which limits the use.

【００１３】Ｂ2 Ｏ3 は、ガラス化範囲を広げる成分で
ある。その含有量が、１０．０％より少ないと、ガラス
化が困難となり、３０．０％より多くなると、却ってガ
ラスが分相し易くなるため好ましくない。B 2 O 3 is a component that expands the vitrification range. If the content is less than 10.0%, vitrification is difficult, and if it is more than 30.0%, the glass tends to undergo phase separation, which is not preferable.

【００１４】ＳｉＯ2 は、ガラスの骨格成分である。そ
の含有量が、０．５％より少ないと、ガラス化が困難と
なり、８．０％より多くなると、軟化点が６００℃を超
えてしまう。SiO 2 is a skeleton component of glass. If the content is less than 0.5%, vitrification becomes difficult, and if it exceeds 8.0%, the softening point exceeds 600 ° C.

【００１５】ＣａＯ、ＳｒＯ、ＢａＯは、いずれも熱膨
張係数を高める成分である。これらの合量が、８．０％
より少ないと、熱膨張係数が６０×１０-7／℃以下とな
り、アルミナ基板やソーダ石灰ガラス基板に適合しなく
なる。一方、２４．０％より多くなると、焼成時にガラ
スが失透しやすくなる。CaO, SrO and BaO are all components that increase the coefficient of thermal expansion. The total amount of these is 8.0%
If it is less, the coefficient of thermal expansion will be 60 × 10 −7 / ° C. or less, and it will not be compatible with alumina substrates and soda-lime glass substrates. On the other hand, if it is more than 24.0%, the glass tends to devitrify during firing.

【００１６】尚、本発明においては、焼成後のガラスの
強度改善や色調、外観の調節のため、アルミナ、ジルコ
ニア、ジルコンなどのセラミックフィラーを５０重量％
まで添加することが可能である。In the present invention, 50% by weight of a ceramic filler such as alumina, zirconia or zircon is used in order to improve the strength of the glass after firing and adjust the color tone and appearance.
It is possible to add up to.

【００１７】[0017]

【実施例】以下、本発明の絶縁用ガラス組成物を実施例
に基づいて詳細に説明する。EXAMPLES Hereinafter, the insulating glass composition of the present invention will be described in detail based on examples.

【００１８】表１は、本発明の実施例（試料Ｎｏ．１〜
６）と、比較例（試料Ｎｏ．７〜１０）を示すものであ
る。Table 1 shows examples of the present invention (Sample Nos. 1 to 1).
6) and Comparative Examples (Sample Nos. 7 to 10).

【００１９】[0019]

【表１】 [Table 1]

【００２０】表１の各試料は、次のようにして調製し
た。Each sample in Table 1 was prepared as follows.

【００２１】まず表１に示したガラス組成となるように
各種酸化物、炭酸塩等を調合し、白金ルツボに入れ、１
３００℃で２時間溶融した後、溶融ガラスをステンレス
製の金型に流しだし成形した。First, various oxides, carbonates, etc. were prepared so that the glass compositions shown in Table 1 were obtained, and they were put in a platinum crucible, and 1
After melting at 300 ° C. for 2 hours, the molten glass was cast into a stainless steel mold and molded.

【００２２】表から明らかなように、実施例のＮｏ．１
〜６の各試料は、いずれも３０〜３００℃の温度範囲に
おいて、６１〜８８×１０-7／℃の熱膨張係数を有し、
軟化点が６００℃以下であり、焼成後に失透を生じるこ
とがなく、しかも焼成後の外観は、無色透明であり、無
機顔料によって所望の色調に着色することが可能である
ことがわかった。As can be seen from the table, No. 1
Each of the samples of No. 6 to 6 has a coefficient of thermal expansion of 61 to 88 × 10 −7 / ° C. in the temperature range of 30 to 300 ° C.
It was found that the softening point was 600 ° C. or lower, devitrification did not occur after firing, the appearance after firing was colorless and transparent, and it was possible to color the inorganic pigment in a desired color tone.

【００２３】それに対し、比較例であるＮｏ．７の試料
は、ＺｎＯが多すぎるため、焼成時に失透し、外観が白
濁した。またＮｏ．８の試料は、Ｂｉ2 Ｏ3 が多すぎる
ため、黒褐色に着色した。さらにＮｏ．９の試料は、Ｂ
2 Ｏ3 が少なすぎるため、ガラス化しなかった。またＮ
ｏ．１０の試料は、ＳｉＯ2 が多すぎるため、軟化点が
６００℃以上であった。On the other hand, in Comparative Example No. The sample of No. 7 contained too much ZnO, so that it devitrified during firing and became cloudy in appearance. In addition, No. Sample No. 8 was colored blackish brown because Bi 2 O 3 was too much. Furthermore, No. Sample 9 is B
It did not vitrify because the amount of 2 O 3 was too small. Also N
o. Sample No. 10 had a softening point of 600 ° C. or higher because it contained too much SiO 2 .

【００２４】尚、表中の熱膨張係数は、成形したガラス
体を、直径４ｍｍ、長さ４０ｍｍの円柱状に研磨加工
し、押し棒式熱膨張係数装置を用いて測定した。The coefficient of thermal expansion in the table was measured by using a push rod type thermal expansion coefficient device after polishing a molded glass body into a cylindrical shape having a diameter of 4 mm and a length of 40 mm.

【００２５】また軟化点は、ガラス体をアルミナ乳鉢で
粉砕した後、目開き４５μｍの篩で分級することによっ
て得られた粉末ガラスを使用し、示差熱分析計を用いて
測定したものであり、第二吸熱ピークの値を示した。The softening point is measured by a differential thermal analyzer using powdered glass obtained by pulverizing a glass body in an alumina mortar and then classifying it with a sieve having an opening of 45 μm. The value of the second endothermic peak is shown.

【００２６】焼成時の失透と焼成後の着色は、以下のよ
うに調べた。まず上記の粉末ガラスをエチルセルロース
の５％ターピネオール溶液に練り込むことによってペー
ストを得た。次いでこのペーストをソーダ石灰ガラス基
板の上にスクリーン印刷法で塗布した後、電気炉中に入
れ、６００℃で１０分間焼成した。この焼成物の外観を
目視で観察し、失透の有無と色調を判定した。The devitrification during firing and the coloring after firing were examined as follows. First, the above powder glass was kneaded into a 5% terpineol solution of ethyl cellulose to obtain a paste. Next, this paste was applied on a soda-lime glass substrate by a screen printing method, then placed in an electric furnace and baked at 600 ° C. for 10 minutes. The appearance of this fired product was visually observed to determine the presence or absence of devitrification and the color tone.

【００２７】[0027]

【発明の効果】以上のように本発明の絶縁用ガラス組成
物は、焼成温度が６００℃以下で、焼成時に失透し難
く、外観が無色透明であり、６０〜９０×１０-7／℃の
熱膨張係数を有している。またＰｂＯを含有しないた
め、機能材料に悪影響を及ぼしたり、Ｐｂ2+が移動した
りすることがなく、廃棄する際にＰｂＯによる環境汚染
が皆無であり、特にプラズマディスプレイパネルや蛍光
表示装置の絶縁材料として好適である。As described above, the insulating glass composition of the present invention has a baking temperature of 600 ° C. or less, is hard to devitrify during baking, and has a colorless and transparent appearance, and is 60 to 90 × 10 −7 / ° C. It has a coefficient of thermal expansion of. In addition, since it does not contain PbO, it does not adversely affect the functional material and does not move Pb 2+ , and there is no environmental pollution due to PbO at the time of disposal, especially for the insulation of plasma display panels and fluorescent display devices. It is suitable as a material.

Claims (1)

【特許請求の範囲】[Claims] 【請求項１】 重量百分率で、ＺｎＯ ２５．０〜４
５．０％、Ｂｉ2 Ｏ3１５．０〜３５．０％、Ｂ2 Ｏ3
１０．０〜３０．０％、ＳｉＯ2 ０．５〜８．０
％、ＣａＯ＋ＳｒＯ＋ＢａＯ ８．０〜２４．０％の組
成を有することを特徴とする絶縁用ガラス組成物。1. ZnO 25.0-4 by weight percentage.
5.0%, Bi 2 O 3 15.0 to 35.0%, B 2 O 3
10.0~30.0%, SiO 2 0.5~8.0
%, CaO + SrO + BaO 8.0 to 24.0%.
JP11477094A 1994-04-27 1994-04-27 Glass composition for insulation Expired - Lifetime JP3424700B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11477094A JP3424700B2 (en) 1994-04-27 1994-04-27 Glass composition for insulation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11477094A JP3424700B2 (en) 1994-04-27 1994-04-27 Glass composition for insulation

Publications (2)

Publication Number Publication Date
JPH07291656A true JPH07291656A (en) 1995-11-07
JP3424700B2 JP3424700B2 (en) 2003-07-07

Family

ID=14646259

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11477094A Expired - Lifetime JP3424700B2 (en) 1994-04-27 1994-04-27 Glass composition for insulation

Country Status (1)

Country Link
JP (1) JP3424700B2 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000073228A1 (en) * 1999-05-28 2000-12-07 Baruch Nachmansohn Glass compositions
EP1122220A1 (en) 2000-01-18 2001-08-08 Central Glass Company, Limited Low-melting glass for covering substrate
JP2006182589A (en) * 2004-12-27 2006-07-13 Nihon Yamamura Glass Co Ltd Bismuth-based lead-free glass composition
KR100663413B1 (en) * 2005-04-07 2007-01-02 삼화전자공업 주식회사 A composite brightness insulator film for Flat Panel Display and the same composite method
US7298085B2 (en) 2003-08-04 2007-11-20 Lg Electronics Inc. Composition of glass for plasma display panel and fabrication method thereof
JP2008150269A (en) * 2006-12-20 2008-07-03 Central Glass Co Ltd Insulating protective coating material
JP2008303077A (en) * 2007-06-05 2008-12-18 Central Glass Co Ltd Insulating protective coating material

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000073228A1 (en) * 1999-05-28 2000-12-07 Baruch Nachmansohn Glass compositions
EP1122220A1 (en) 2000-01-18 2001-08-08 Central Glass Company, Limited Low-melting glass for covering substrate
US6475605B2 (en) 2000-01-18 2002-11-05 Central Glass Company, Limited Low-melting glass for covering substrate
US7298085B2 (en) 2003-08-04 2007-11-20 Lg Electronics Inc. Composition of glass for plasma display panel and fabrication method thereof
JP2006182589A (en) * 2004-12-27 2006-07-13 Nihon Yamamura Glass Co Ltd Bismuth-based lead-free glass composition
KR100663413B1 (en) * 2005-04-07 2007-01-02 삼화전자공업 주식회사 A composite brightness insulator film for Flat Panel Display and the same composite method
JP2008150269A (en) * 2006-12-20 2008-07-03 Central Glass Co Ltd Insulating protective coating material
JP2008303077A (en) * 2007-06-05 2008-12-18 Central Glass Co Ltd Insulating protective coating material

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