JPH01126244A - Production of water-repellent glass - Google Patents
Production of water-repellent glassInfo
- Publication number
- JPH01126244A JPH01126244A JP62284645A JP28464587A JPH01126244A JP H01126244 A JPH01126244 A JP H01126244A JP 62284645 A JP62284645 A JP 62284645A JP 28464587 A JP28464587 A JP 28464587A JP H01126244 A JPH01126244 A JP H01126244A
- Authority
- JP
- Japan
- Prior art keywords
- glass
- water
- polydimethylsiloxane
- film
- hydrocarbon
- 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
- 239000011521 glass Substances 0.000 title claims abstract description 48
- 239000005871 repellent Substances 0.000 title claims abstract description 18
- 238000004519 manufacturing process Methods 0.000 title claims description 6
- -1 polydimethylsiloxane Polymers 0.000 claims abstract description 22
- 239000004205 dimethyl polysiloxane Substances 0.000 claims abstract description 21
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims abstract description 21
- 238000010438 heat treatment Methods 0.000 claims abstract description 11
- 239000004215 Carbon black (E152) Substances 0.000 claims abstract description 8
- 229930195733 hydrocarbon Natural products 0.000 claims abstract description 8
- 150000002430 hydrocarbons Chemical class 0.000 claims abstract description 8
- 239000007788 liquid Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 30
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 abstract description 9
- 238000007598 dipping method Methods 0.000 abstract description 7
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 abstract description 6
- 238000004132 cross linking Methods 0.000 abstract description 2
- 239000010408 film Substances 0.000 description 24
- 239000011248 coating agent Substances 0.000 description 14
- 238000000576 coating method Methods 0.000 description 14
- 239000000654 additive Substances 0.000 description 11
- 150000001875 compounds Chemical class 0.000 description 7
- 238000005299 abrasion Methods 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 230000002940 repellent Effects 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- DIOQZVSQGTUSAI-UHFFFAOYSA-N decane Chemical compound CCCCCCCCCC DIOQZVSQGTUSAI-UHFFFAOYSA-N 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- BKIMMITUMNQMOS-UHFFFAOYSA-N nonane Chemical compound CCCCCCCCC BKIMMITUMNQMOS-UHFFFAOYSA-N 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000019441 ethanol Nutrition 0.000 description 1
- 239000005357 flat glass Substances 0.000 description 1
- 125000001153 fluoro group Chemical group F* 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- TVMXDCGIABBOFY-UHFFFAOYSA-N octane Chemical compound CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- FAIAAWCVCHQXDN-UHFFFAOYSA-N phosphorus trichloride Chemical compound ClP(Cl)Cl FAIAAWCVCHQXDN-UHFFFAOYSA-N 0.000 description 1
- 150000004756 silanes Chemical class 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
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
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/28—Surface treatment of glass, not in the form of fibres or filaments, by coating with organic material
- C03C17/30—Surface treatment of glass, not in the form of fibres or filaments, by coating with organic material with silicon-containing compounds
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)
- Surface Treatment Of Optical Elements (AREA)
- Surface Treatment Of Glass (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、自動車のフロント用のガラス等のように撥水
性と耐摩耗性が要求される分野で使用されるｔａ水性ガ
ラスの製造方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for manufacturing TA water-based glass used in fields where water repellency and abrasion resistance are required, such as automobile front glass. It is something.
従来、ガラスの撥水性を向上させるためにポリフルオロ
アルキル基含有シラン化合物、ポリジメチルシロキサン
等の化合物をその表面に塗布する試みがなされてきた。Conventionally, attempts have been made to coat the surface of glass with compounds such as polyfluoroalkyl group-containing silane compounds and polydimethylsiloxane in order to improve its water repellency.
これらの化合物はそれらに含まれているアルキル基やフ
ルオロ基が撥水性発現に寄与するものである。しかし、
これらの化合物は単に溶媒中に溶かし、塗布したのみで
はガラス表面に吸着しているだけで膜の付着強度が弱い
ことと、塗膜自体の強度も弱く耐摩耗性もないため、撥
水性を長期にわたり維持することができず自動車用フロ
ントガラス等には使用できなかった。The alkyl groups and fluoro groups contained in these compounds contribute to water repellency. but,
If these compounds are simply dissolved in a solvent and applied, the adhesion strength of the film is weak because they are simply adsorbed to the glass surface, and the coating film itself is also weak and has no abrasion resistance, so it is difficult to maintain water repellency for a long time. It could not be maintained for long periods of time and could not be used for automobile windshields, etc.
そのため、該化合物からなる塗膜とガラスとの間に結合
力の強い架橋を作って付着力を高めたり、膜の強度を向
上させるために上記化合物含有溶液に硫酸、脂肪族スル
ホン酸、ハロゲン化酢酸またはリンの塩化物等の添加剤
を加えることが提案されている（特開昭５０−２３１４
４２、特開昭６１−６４７８０、特開昭６ｌ−１１８４
１３７）。Therefore, in order to increase the adhesion force by creating a strong crosslink between the coating film made of the compound and the glass, or to improve the strength of the film, it is necessary to add sulfuric acid, aliphatic sulfonic acid, or halogen to the solution containing the above compound. It has been proposed to add additives such as acetic acid or phosphorus chloride (Japanese Patent Laid-Open No. 50-2314
42, JP 61-64780, JP 6l-1184
137).
しかし、添加剤を用いても塗膜とガラスとの間の付着力
および膜の強度が弱く、自動車のフロントガラスのよう
にワイパーによって摩擦されるため使用条件が厳しい場
合に十分に耐久性があるものはなかった。また、ポリジ
メチルシロキサン等の撥水性化合物と添加剤を均一に混
合するのは難しく、さらに、強酸は危険物が多（取り扱
いが厄介であること、添加剤としてフッ化物を用いる場
合は高価であり１、また膜中に異物が混入することとな
り撥水性が低下する等、添加剤を用いたことによる種々
の問題点があった。However, even with the use of additives, the adhesion between the paint film and the glass and the strength of the film are weak, and it is not durable enough to withstand harsh usage conditions because it is rubbed by wipers like the windshield of a car. There was nothing. In addition, it is difficult to uniformly mix water-repellent compounds such as polydimethylsiloxane and additives, and strong acids are often dangerous (they are difficult to handle, and fluoride is expensive when used as an additive). 1. Furthermore, there were various problems due to the use of additives, such as foreign matter being mixed into the film, resulting in a decrease in water repellency.
〔発明の目的］
本発明は上記問題点を解決するため、撥水性を有する物
質としてポリジメチルシロキサンに着目し、添加剤を用
いずに簡易な操作で塗膜のガラスとの付着力と膜の強度
の向上を図り、撥水性と耐摩耗性とを有する膜を存する
無機ガラスの製造方法を提供するものである。[Object of the invention] In order to solve the above problems, the present invention focuses on polydimethylsiloxane as a water-repellent substance, and improves the adhesion of the coating film to glass and the strength of the film through simple operations without using additives. The present invention provides a method for producing an inorganic glass having a film with improved strength, water repellency, and abrasion resistance.
本発明は、ポリジメチルシロキサンと室温で液状の炭化
水素とからなる溶液中に無機ガラスを浸漬し、引き上げ
た後、熱処理することを特徴とする撥水性ガラスの製造
方法に関するものである。The present invention relates to a method for producing water-repellent glass, which is characterized by immersing inorganic glass in a solution consisting of polydimethylsiloxane and a hydrocarbon that is liquid at room temperature, pulling it up, and then heat-treating it.
ポリジメチルシロキサンは化学式が
橋を作り、撥水性を示すメチル基がガラス表面を向いた
状態となり、ガラスの撥水性を向上させるものである。The chemical formula of polydimethylsiloxane forms a bridge, with the water-repellent methyl groups facing the glass surface, improving the water-repellency of the glass.
本発明で撥水性を付与する溶液として用いたポリジメチ
ルシロキサンと炭化水素からなる溶液は、従来用いられ
ていた溶液のように塗膜とガラスとの付着力および塗膜
自体の強度を増す働きをする硫酸、フッ化物等の藷加剤
を用いない。添加剤を用いる代わりに熱処理を施す。熱
処理によって膜とガラスの間の架橋が強化され、付着力
が増大する。また、膜自体の強度も向上し耐摩耗性が増
す。The solution consisting of polydimethylsiloxane and hydrocarbon used as the solution for imparting water repellency in the present invention has the effect of increasing the adhesion between the coating film and glass and the strength of the coating film itself, unlike conventionally used solutions. Do not use additives such as sulfuric acid or fluoride. Apply heat treatment instead of using additives. Heat treatment strengthens the crosslinks between the membrane and glass, increasing adhesion. Furthermore, the strength of the film itself is improved and wear resistance is increased.
したがって、特に撥水性と耐摩耗性が要求される自動車
のフロント用窓ガラス等に適用することが可能となった
。Therefore, it has become possible to apply it to automobile front window glass, etc., which particularly require water repellency and abrasion resistance.
また、添加剤を用いないため、危険物である強酸による
人体への影響、溶液構成物質の均一な混合操作を殆ど考
慮する必要がなく、操作が容易である。また、添加剤が
塗膜中に混入することがないため、添加剤に起因する撥
水性の低下もない。In addition, since no additives are used, there is no need to consider the effects of strong acid, which is a dangerous substance, on the human body and the uniform mixing of the solution constituents, making it easy to operate. Furthermore, since additives are not mixed into the coating film, there is no decrease in water repellency due to additives.
そのため、ポリジメチルシロキサンの撥水性をそのまま
発現することができる。Therefore, the water repellency of polydimethylsiloxane can be expressed as is.
ｔａ水剤として用いるポリジメチルシロキサンの粘度は
５００〜１００００ｃｅｎｔｉ−ｓｔｏｋｅｓ（以下Ｃ
３と表す）が望ましい。該化合物は溶媒である炭化水素
に溶かして用いられる。炭化水素は室温で液状のヘキサ
ン、ヘプタン、オクタン、ノナンまたはデカンを用いる
。該ポリジメチルシロキサンの濃度は３〜２０％が望ま
しい。ガラスへの溶液の塗布条件は上記粘度と濃度との
関係で決まる。粘度、濃度ともに小さい場合は溶液がガ
ラスに吸着しにくく、実用的な厚さになりにくい。逆に
粘度が大きく、濃度が大きいと溶液が粘ってしまい、均
一な厚さに被覆できなくなる。The viscosity of polydimethylsiloxane used as a TA solution is 500 to 10,000 centi-stokes (hereinafter referred to as C
3) is desirable. The compound is used after being dissolved in a hydrocarbon solvent. The hydrocarbon used is hexane, heptane, octane, nonane, or decane, which is liquid at room temperature. The concentration of the polydimethylsiloxane is preferably 3 to 20%. The conditions for applying the solution to the glass are determined by the relationship between the viscosity and concentration described above. If both the viscosity and concentration are low, the solution will be difficult to adsorb to the glass, making it difficult to achieve a practical thickness. On the other hand, if the viscosity is high and the concentration is high, the solution will become sticky and it will not be possible to coat it with a uniform thickness.
ポリジメチルシロキサンの濃度は５〜１０％が最も望ま
しい。The most desirable concentration of polydimethylsiloxane is 5 to 10%.
ガラスの□溶液中への浸漬は１回あたり５〜１０秒行う
。ガラス表面が溶液に均一に濡れれば充分である。塗膜
の厚さを調整するため浸漬回数は１〜３回行う。ポリジ
メチルシロキサンの粘度と濃度で変わるが一般に粘度が
低い場合は浸漬回数を多く、粘度が高い場合は回数を少
なくする。撥水性膜の塗布は吹付機を用いて撥水用溶液
をガラス表面にスプレーしてもよい。この場合はスプレ
ー量、スプレーガンの移動速さ等を自動的に制御して塗
膜の厚さが均一になるようにする。The glass is dipped into the □ solution for 5 to 10 seconds each time. It is sufficient that the glass surface is uniformly wetted with the solution. In order to adjust the thickness of the coating film, dipping is performed 1 to 3 times. Although it varies depending on the viscosity and concentration of polydimethylsiloxane, in general, if the viscosity is low, the number of dippings is increased, and if the viscosity is high, the number of dippings is decreased. The water-repellent film may be applied by spraying a water-repellent solution onto the glass surface using a sprayer. In this case, the amount of spray, the speed of movement of the spray gun, etc. are automatically controlled to ensure that the thickness of the coating film is uniform.
熱処理は２５０〜３５０ ’Ｃの温度で行う。加熱はガ
ラスを支持するための台やチャックに装着し、オープン
、電気炉中、あるいはドライヤー、赤外線照射によって
、ガラス全体または塗膜部分が所定の温度に均一に加熱
されるように行う。加熱雰囲気は大気中でよいが、Ａｒ
などの不活性ガス雰囲気中でも差し支えない。熱処理温
度が３５０℃より高いと、ポリジメチルシロキサンの構
造が変化し、Ｉ發水性が低下する。２５０℃より低い場
合は塗膜とガラスとの付着力、膜の強度とも十分でない
。また、上記温度に１０〜３０分保持して架橋の強化を
図り、付着力を増大させる。１０分より短いと実用上十
分な付着力が得られない。しかし、３０分以上保持して
も付着力の向上は殆ど認められない。Heat treatment is carried out at a temperature of 250-350'C. Heating is carried out by placing the glass on a stand or chuck for supporting it, and heating the glass in an open or electric furnace, using a dryer, or by infrared irradiation so that the entire glass or coating portion is uniformly heated to a predetermined temperature. The heating atmosphere may be air, but Ar
There is no problem even in an inert gas atmosphere such as. When the heat treatment temperature is higher than 350° C., the structure of polydimethylsiloxane changes and the water resistance decreases. When the temperature is lower than 250°C, both the adhesion between the coating film and the glass and the strength of the film are insufficient. Further, the above temperature is maintained for 10 to 30 minutes to strengthen crosslinking and increase adhesive force. If the time is shorter than 10 minutes, practically sufficient adhesion cannot be obtained. However, almost no improvement in adhesion is observed even after holding for 30 minutes or more.
本溌水処理は自動車用フロントガラスのみならず、撥水
性と同時に耐摩耗性が要求されるあらゆるガラスに適用
できる。This water repellent treatment can be applied not only to automobile windshields, but also to any type of glass that requires both water repellency and abrasion resistance.
実施例１
自動車のフロント用無機ガラスに本発明に係る（ａ水処
理を施し、その撥水性を調べた。まず溶媒であるヘキサ
ンに粘度が１００ＯＣ３のポリジメチルシロキサンを５
％溶かして撥水処理用溶液を作成した。該溶液中に、エ
チルアルコールでその表面を脱脂して清浄化した上記ガ
ラスを浸漬し、１０秒保持後、溶液中より取り出した。Example 1 Inorganic glass for the front of an automobile was subjected to water treatment (a) according to the present invention, and its water repellency was investigated. First, 55% of polydimethylsiloxane with a viscosity of 100OC3 was added to hexane as a solvent.
% to prepare a water repellent treatment solution. The glass, whose surface had been degreased and cleaned with ethyl alcohol, was immersed in the solution, held for 10 seconds, and then taken out from the solution.
ガラス表面には極めて薄い膜が均一に吸着していた。該
浸漬操作を連続して３回繰り返した。その後、このガラ
スを３００℃に保持したシリコニット電気炉中に装入し
、２０分間保持した。この塩水処理したガラスを試料阻
１とした。An extremely thin film was uniformly adsorbed on the glass surface. The dipping operation was repeated three times in succession. Thereafter, this glass was placed in a siliconite electric furnace maintained at 300° C. and maintained for 20 minutes. This salt water treated glass was designated as Sample 1.
また、比較例として、熱処理温度を２００℃と４００℃
にした以外は実施例１と同一条件で試料Ｎα２および３
を作製した。In addition, as a comparative example, the heat treatment temperature was set to 200°C and 400°C.
Samples Nα2 and 3 were prepared under the same conditions as in Example 1 except that
was created.
これら実施例および比較例について熱処理後の塗膜表面
を５００ｇ荷重でワックスを塗布した布によって拭きこ
すりを１００．５００および１０００回行った場合の水
の接触角の変化を図に示した０本発明に係る撥水処理ガ
ラスは１ｏｏｏ回拭きこすりを行っても撥水性の低下が
殆ど見られない、これに対し、２００℃で熱処理したも
のは塗膜とガラスとの間の付着力が弱いため、また４０
０℃のものは塗膜自体が変質し、強度が低下するため拭
きこすり回数の増加とともに撥水性が低下した。For these Examples and Comparative Examples, the change in the contact angle of water when the surface of the heat-treated coating film was wiped and rubbed 100,500 and 1000 times with a cloth coated with wax under a load of 500g is shown in the figure. The water-repellent treated glass shows almost no decrease in water repellency even after being wiped and rubbed 100 times.On the other hand, the glass that has been heat-treated at 200°C has weak adhesion between the coating film and the glass. 40 again
At 0°C, the coating film itself deteriorated and its strength decreased, so that as the number of times of wiping and rubbing increased, the water repellency decreased.
実施例２
溶媒であるヘプタンに粘度が５０００Ｃ３のポリジメチ
ルシロキサンを３％、５％、１０％または１５％添加し
、撥水処理用溶液を作成し、他の条件は実施例１と同一
の条件で自動車のフロント用無機ガラスに塩水処理を行
い試料Ｎα４〜７を作製した。Example 2 A water repellent solution was prepared by adding 3%, 5%, 10% or 15% of polydimethylsiloxane with a viscosity of 5000C3 to heptane as a solvent, and the other conditions were the same as in Example 1. Samples Nα4 to Nα7 were prepared by subjecting inorganic glass for the front of an automobile to salt water treatment.
また、比較例としポリジメチルシロキサンの濃度を２％
、２５％とし他の条件は試料Ｎｏ、 ４〜７と同一とし
、撥水処理を行い試料Ｎｏ、８ （ポリジメチルシロキ
サンの濃度２％）、９（ポリジメチルシロキサンの濃度
２５％）を作製した。これら実施例、比較例の試料につ
いて撥水用溶液中に浸漬後取り出し、空気中で乾燥した
後のガラス表面の状態を調べた。本発明に係るＮα４〜
７の試料の場合はガラス表面は十分な撥水性を示した。In addition, as a comparative example, the concentration of polydimethylsiloxane was 2%.
, 25%, and other conditions were the same as Samples Nos. 4 to 7, and water repellent treatment was performed to prepare Samples Nos. 8 (polydimethylsiloxane concentration: 2%) and 9 (polydimethylsiloxane concentration: 25%). . The samples of these Examples and Comparative Examples were immersed in a water-repellent solution, taken out, and dried in air to examine the state of the glass surface. Nα4 according to the present invention
In the case of sample No. 7, the glass surface showed sufficient water repellency.
比較例ではＮｏ、 ８は全く撥水性を示さず膜が殆ど形
成されていないことが確かめられた。また、Ｎｏ、９は
溶液の粘性が高いため膜厚さが不均一となり、その表面
を肉眼で観察すると乱反射を呈していた。In the comparative example, it was confirmed that No. 8 did not show any water repellency and almost no film was formed. Further, in No. 9, the film thickness was non-uniform due to the high viscosity of the solution, and when the surface was observed with the naked eye, diffused reflection was observed.
漱４〜７の試料について熱処理後の塗膜表面を５００ｇ
の荷重でワックスを塗布した布によっ、て拭きこすりを
１０００回行った場合の水の接触角を表に示すが、いず
れも９０度以上の優れた撥水性を示した。500g of the coating surface after heat treatment for samples of Sou 4 to 7
The contact angle of water when wiped and rubbed 1000 times with a cloth coated with wax under a load of 1000 is shown in the table, and all showed excellent water repellency of 90 degrees or more.
表table
図は摩擦回数に伴う水の接触角の変化を示したものであ
る。The figure shows the change in water contact angle with the number of frictions.
Claims (3)
とからなる溶液中に無機ガラスを浸漬し、引き上げた後
、熱処理することを特徴とする撥水性ガラスの製造方法
。(1) A method for producing water-repellent glass, which comprises immersing inorganic glass in a solution consisting of polydimethylsiloxane and a hydrocarbon that is liquid at room temperature, pulling it up, and then heat-treating it.
〜３０分間加熱する特許請求の範囲第（１）項記載の撥
水性ガラスの製造方法。(2) Heat treatment at a temperature in the range of 250-350℃ for 10
A method for producing water-repellent glass according to claim (1), wherein the water-repellent glass is heated for 30 minutes.
％である特許請求の範囲第（１）項記載の撥水性ガラス
の製造方法。(3) Polydimethylsiloxane has a concentration of 5 to 10
% of the water-repellent glass according to claim (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62284645A JPH0776116B2 (en) | 1987-11-11 | 1987-11-11 | Method for producing water-repellent glass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62284645A JPH0776116B2 (en) | 1987-11-11 | 1987-11-11 | Method for producing water-repellent glass |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01126244A true JPH01126244A (en) | 1989-05-18 |
| JPH0776116B2 JPH0776116B2 (en) | 1995-08-16 |
Family
ID=17681149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62284645A Expired - Lifetime JPH0776116B2 (en) | 1987-11-11 | 1987-11-11 | Method for producing water-repellent glass |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0776116B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5266358A (en) * | 1991-06-05 | 1993-11-30 | Nissan Motor Company, Ltd. | Method of forming water-repellent metal oxide film coated on glass substrate |
| US6337135B1 (en) | 1997-04-30 | 2002-01-08 | Daikin Industries, Ltd. | Fluoropolymer, process for preparing the same, and use thereof |
| US8658888B2 (en) | 2007-12-12 | 2014-02-25 | Empire Technology Development Llc | Solar energy utilization device and method for manufacturing the same |
| US9447284B2 (en) | 2007-05-01 | 2016-09-20 | Empire Technology Development Llc | Water repellent glass plates |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49128920A (en) * | 1973-04-12 | 1974-12-10 |
-
1987
- 1987-11-11 JP JP62284645A patent/JPH0776116B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49128920A (en) * | 1973-04-12 | 1974-12-10 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5266358A (en) * | 1991-06-05 | 1993-11-30 | Nissan Motor Company, Ltd. | Method of forming water-repellent metal oxide film coated on glass substrate |
| US6337135B1 (en) | 1997-04-30 | 2002-01-08 | Daikin Industries, Ltd. | Fluoropolymer, process for preparing the same, and use thereof |
| US9447284B2 (en) | 2007-05-01 | 2016-09-20 | Empire Technology Development Llc | Water repellent glass plates |
| US8658888B2 (en) | 2007-12-12 | 2014-02-25 | Empire Technology Development Llc | Solar energy utilization device and method for manufacturing the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0776116B2 (en) | 1995-08-16 |
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