JPH02135289A - Fluorinated hydrocarbon-based azeotropic mixture - Google Patents
Fluorinated hydrocarbon-based azeotropic mixtureInfo
- Publication number
- JPH02135289A JPH02135289A JP63288787A JP28878788A JPH02135289A JP H02135289 A JPH02135289 A JP H02135289A JP 63288787 A JP63288787 A JP 63288787A JP 28878788 A JP28878788 A JP 28878788A JP H02135289 A JPH02135289 A JP H02135289A
- Authority
- JP
- Japan
- Prior art keywords
- mixture
- dichloroethylene
- ethanol
- azeotropic mixture
- fluorinated 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.)
- Pending
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 21
- 150000002430 hydrocarbons Chemical class 0.000 title claims description 6
- 229930195733 hydrocarbon Natural products 0.000 title claims description 5
- 239000004215 Carbon black (E152) Substances 0.000 title claims description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 20
- KFUSEUYYWQURPO-OWOJBTEDSA-N trans-1,2-dichloroethene Chemical group Cl\C=C\Cl KFUSEUYYWQURPO-OWOJBTEDSA-N 0.000 claims abstract description 7
- AJDIZQLSFPQPEY-UHFFFAOYSA-N 1,1,2-Trichlorotrifluoroethane Chemical compound FC(F)(Cl)C(F)(Cl)Cl AJDIZQLSFPQPEY-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000002904 solvent Substances 0.000 abstract description 10
- 239000003795 chemical substances by application Substances 0.000 abstract description 5
- 230000004907 flux Effects 0.000 abstract description 5
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 abstract description 3
- 239000000976 ink Substances 0.000 abstract description 2
- 239000003921 oil Substances 0.000 abstract description 2
- 230000003287 optical effect Effects 0.000 abstract description 2
- 239000001993 wax Substances 0.000 abstract description 2
- BOSAWIQFTJIYIS-UHFFFAOYSA-N 1,1,1-trichloro-2,2,2-trifluoroethane Chemical compound FC(F)(F)C(Cl)(Cl)Cl BOSAWIQFTJIYIS-UHFFFAOYSA-N 0.000 abstract 1
- WSLDOOZREJYCGB-UHFFFAOYSA-N 1,2-Dichloroethane Chemical group ClCCCl WSLDOOZREJYCGB-UHFFFAOYSA-N 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 239000003599 detergent Substances 0.000 abstract 1
- 238000004140 cleaning Methods 0.000 description 5
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 4
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 3
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 3
- PXBRQCKWGAHEHS-UHFFFAOYSA-N dichlorodifluoromethane Chemical compound FC(F)(Cl)Cl PXBRQCKWGAHEHS-UHFFFAOYSA-N 0.000 description 3
- 239000010721 machine oil Substances 0.000 description 3
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 3
- AFABGHUZZDYHJO-UHFFFAOYSA-N 2-Methylpentane Chemical compound CCCC(C)C AFABGHUZZDYHJO-UHFFFAOYSA-N 0.000 description 2
- QQZOPKMRPOGIEB-UHFFFAOYSA-N 2-Oxohexane Chemical compound CCCCC(C)=O QQZOPKMRPOGIEB-UHFFFAOYSA-N 0.000 description 2
- KDSNLYIMUZNERS-UHFFFAOYSA-N 2-methylpropanamine Chemical compound CC(C)CN KDSNLYIMUZNERS-UHFFFAOYSA-N 0.000 description 2
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- 239000004604 Blowing Agent Substances 0.000 description 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 2
- OFBQJSOFQDEBGM-UHFFFAOYSA-N Pentane Chemical compound CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 2
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 2
- HQABUPZFAYXKJW-UHFFFAOYSA-N butan-1-amine Chemical compound CCCCN HQABUPZFAYXKJW-UHFFFAOYSA-N 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- -1 impentane Chemical compound 0.000 description 2
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 2
- 239000003380 propellant Substances 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 1
- JSZOAYXJRCEYSX-UHFFFAOYSA-N 1-nitropropane Chemical compound CCC[N+]([O-])=O JSZOAYXJRCEYSX-UHFFFAOYSA-N 0.000 description 1
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- XNWFRZJHXBZDAG-UHFFFAOYSA-N 2-METHOXYETHANOL Chemical compound COCCO XNWFRZJHXBZDAG-UHFFFAOYSA-N 0.000 description 1
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 1
- 101100027969 Caenorhabditis elegans old-1 gene Proteins 0.000 description 1
- 239000004338 Dichlorodifluoromethane Substances 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000012459 cleaning agent Substances 0.000 description 1
- 235000019404 dichlorodifluoromethane Nutrition 0.000 description 1
- HPNMFZURTQLUMO-UHFFFAOYSA-N diethylamine Chemical compound CCNCC HPNMFZURTQLUMO-UHFFFAOYSA-N 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000005108 dry cleaning Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 1
- JJWLVOIRVHMVIS-UHFFFAOYSA-N isopropylamine Chemical compound CC(C)N JJWLVOIRVHMVIS-UHFFFAOYSA-N 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- YKYONYBAUNKHLG-UHFFFAOYSA-N n-Propyl acetate Natural products CCCOC(C)=O YKYONYBAUNKHLG-UHFFFAOYSA-N 0.000 description 1
- 125000004971 nitroalkyl group Chemical group 0.000 description 1
- MCSAJNNLRCFZED-UHFFFAOYSA-N nitroethane Chemical compound CC[N+]([O-])=O MCSAJNNLRCFZED-UHFFFAOYSA-N 0.000 description 1
- LYGJENNIWJXYER-UHFFFAOYSA-N nitromethane Chemical compound C[N+]([O-])=O LYGJENNIWJXYER-UHFFFAOYSA-N 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229940090181 propyl acetate Drugs 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000013020 steam cleaning Methods 0.000 description 1
- 239000005437 stratosphere Substances 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- CYRMSUTZVYGINF-UHFFFAOYSA-N trichlorofluoromethane Chemical compound FC(Cl)(Cl)Cl CYRMSUTZVYGINF-UHFFFAOYSA-N 0.000 description 1
- 229940029284 trichlorofluoromethane Drugs 0.000 description 1
- 239000005436 troposphere Substances 0.000 description 1
- 238000004506 ultrasonic cleaning Methods 0.000 description 1
- NQPDZGIKBAWPEJ-UHFFFAOYSA-N valeric acid Chemical compound CCCCC(O)=O NQPDZGIKBAWPEJ-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
- C11D7/50—Solvents
- C11D7/5036—Azeotropic mixtures containing halogenated solvents
- C11D7/5068—Mixtures of halogenated and non-halogenated solvents
- C11D7/5077—Mixtures of only oxygen-containing solvents
- C11D7/5081—Mixtures of only oxygen-containing solvents the oxygen-containing solvents being alcohols only
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Detergent Compositions (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、代替フロンとして使用できるとともに溶剤等
として優れた特性を有する新規なフッ素化炭化水素系共
沸様混合物に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a novel fluorinated hydrocarbon azeotrope-like mixture that can be used as a CFC substitute and has excellent properties as a solvent and the like.
［従来の技術］
フッ素化炭化水素系化合物（以下単にフロンという）は
、毒性が少なく不燃で化学的に安定なものが多（、標準
沸点の異なる各種フロンが入手できることから、これら
の特性を生かして溶剤、発泡剤、プロペラントあるいは
冷媒等として種々のフロンが使われている。例えば、溶
剤として１，１．２− ）−リクロロー１．２．２−１
−リフルオロエタン（Ｒ１１３）が、発泡剤としてトリ
クロロモノフルオロメタン（Ｒ１１）が、プロペラント
や冷媒としてジクロロジフルオロメタン（Ｒ１２）が使
われている。[Conventional technology] Fluorinated hydrocarbon compounds (hereinafter simply referred to as fluorocarbons) are mostly non-toxic, non-flammable, and chemically stable. Various fluorocarbons are used as solvents, blowing agents, propellants, refrigerants, etc.For example, 1,1.2-)-Rechlorofluorocarbons are used as solvents.
-Lifluoroethane (R113), trichloromonofluoromethane (R11) as a blowing agent, and dichlorodifluoromethane (R12) as a propellant or refrigerant.
［発明が解決しようとする課題］
化学的に特に安定な旧１．Ｒ１２，Ｒ１１３は対流圏内
での寿命が長く、拡散して成層圏に達し、ここで太陽光
線により分解して発生する塩素ラジカルがオゾンと連鎖
反応を起こし、オゾン層を破壊するとのことから、これ
ら従来のフロンの使用を規制する動きがある。このため
、これらの従来のフロンに替わり、オゾン層を破壊しに
くい代替フロンの探索が活発に行なわれている。[Problem to be solved by the invention] Chemically particularly stable old 1. R12 and R113 have a long life in the troposphere and diffuse into the stratosphere, where they are decomposed by sunlight and generate chlorine radicals that cause a chain reaction with ozone and destroy the ozone layer. There is a movement to regulate the use of fluorocarbons. For this reason, the search for alternative fluorocarbons that are less likely to deplete the ozone layer is being actively conducted in place of these conventional fluorocarbons.
本発明は、従来のフロンの使用量を低減し、且つ該フロ
ンが有している（！れた特性を満足しながら代替フロン
として使用できる新規なフロン混合物を提供することを
目的とするものである。The purpose of the present invention is to provide a new fluorocarbon mixture that can be used as a fluorocarbon substitute while reducing the amount of conventional fluorocarbons used and satisfying the characteristics that these fluorocarbons have. be.
［課題を解決するための手段］
本発明は１，１．２−１−ジクロロフルオロエタン（Ｒ
１１３）及びｔｒａｎｓ−１、２−ジクロロエチレンと
エタノールの２成分共沸混合物からなるフッ素化炭化水
素系共沸様混合物に関するものである。本発明の混合物
は不燃又は難燃性であるとともに、特に洗浄溶剤として
従来のＲ１１３単体よりも洗浄力が高いため、Ｒ１１３
の代替として極めて有用なものである。[Means for solving the problems] The present invention provides 1,1,2-1-dichlorofluoroethane (R
113) and a fluorinated hydrocarbon azeotrope-like mixture consisting of a binary azeotrope of trans-1,2-dichloroethylene and ethanol. The mixture of the present invention is nonflammable or flame retardant, and has higher cleaning power than conventional R113 alone as a cleaning solvent.
It is extremely useful as a substitute for
更にリサイクルしても組成の変動が少ないこと、又従来
の単一フロンと同じ使い方ができ、従来技術の大幅な変
更を要しないこと等の利点があることから、本発明の混
合物とし゛てはＲ１１３が９５〜２０重量％及びｔｒａ
ｎｓ−１，２−ジクロロエチレンとエタノールの２成分
共沸混合物が５〜８０重量％、好ましくはＲ１１３が８
０〜４０重量％及びｔｒａｎｓ−１，２−ジクロロエチ
レンとエタノールの２成分共沸混合物が２０〜６０重量
％であり、さらに好ましくはＲ１１３が約５０重量％と
ｔｒａｎｓ−１，２−ジクロロエチレンとエタノールの
２成分共沸混合物の約５０重量％からなる共沸様混合物
である。本発明の混合物には、用途に応じてその他の成
分をさらに添加混合することができる。例えば、溶剤と
しての用途においては、ペンタン、インペンタン、ヘキ
サン、イソヘキサン、ヘプタン、イソへブタン等の炭化
水素類、ニトロメタン、ニトロエタン、ニトロプロパン
等のニトロアルカン類、ジエチルアミン、トリエチルア
ミン、イソプロピルアミン、ブチルアミン、イソブチル
アミン等のアミン類、メタノール、ｎ −プロピルアル
コール、ｉ−プロピルアルコール、ｎ−ブタノール、ｉ
−ブタノール、等のアルコール類、メチルセロソルブ、
テトラヒドロフラン、１．４−ジオキサン等のエーテル
類、アセトン、メチルブチルケトン、メチルブチルケト
ン等のケトン類、酢酸エチル、酢酸プロピル、酢酸ブチ
ル等のエステル類等から選ばれる１種又は２種以上を添
加混合することができる。Furthermore, R113 is selected as the mixture of the present invention because it has the advantage that there is little change in composition even when recycled, and it can be used in the same way as conventional single fluorocarbons and does not require major changes in conventional technology. is 95-20% by weight and tra
The binary azeotrope of ns-1,2-dichloroethylene and ethanol is 5 to 80% by weight, preferably R113 is 8
0 to 40% by weight and a binary azeotrope of trans-1,2-dichloroethylene and ethanol is 20 to 60% by weight, more preferably about 50% by weight of R113 and trans-1,2-dichloroethylene and ethanol. It is an azeotrope-like mixture consisting of about 50% by weight of the binary azeotrope. Other components may be further added to the mixture of the present invention depending on the intended use. For example, when used as a solvent, hydrocarbons such as pentane, impentane, hexane, isohexane, heptane, and isohebutane, nitroalkanes such as nitromethane, nitroethane, and nitropropane, diethylamine, triethylamine, isopropylamine, butylamine, Amines such as isobutylamine, methanol, n-propyl alcohol, i-propyl alcohol, n-butanol, i
-Alcohols such as butanol, methyl cellosolve,
Adding one or more types selected from ethers such as tetrahydrofuran and 1,4-dioxane, ketones such as acetone, methyl butyl ketone, and methyl butyl ketone, and esters such as ethyl acetate, propyl acetate, butyl acetate, etc. Can be mixed.
本発明の共沸様混合物は１、従来のフロンと同様、熱媒
体、ドライクリーニング等の各種用途に使用でき、特に
溶剤として用いた場合、従来のＲ１１３に比べ溶解力が
高いため好適である。溶剤の具体的な用途としては、フ
ラックス、グリース、油、ワックス、インキ等の除去剤
、塗料用溶剤、抽出剤、シミ抜き剤、ガラス、セラミッ
クス、プラスチック、ゴム、金属製各種物品、特にＩＣ
部品、電気機器、精密機械、光学レンズ等の洗浄剤や水
切り剤等を挙げることができる。洗浄方法としては、手
拭き、浸漬、スプレー、揺動、超音波洗浄、蒸気洗浄等
を採用すればよい。The azeotrope-like mixture of the present invention can be used in various applications such as heating medium and dry cleaning, just like conventional fluorocarbons, and is particularly suitable when used as a solvent because it has higher dissolving power than conventional R113. Specific uses of solvents include removal agents for flux, grease, oil, wax, ink, etc., paint solvents, extractants, stain removers, glass, ceramics, plastics, rubber, various metal articles, especially ICs.
Examples include cleaning agents and draining agents for parts, electrical equipment, precision machinery, optical lenses, etc. As the cleaning method, hand wiping, dipping, spraying, shaking, ultrasonic cleaning, steam cleaning, etc. may be employed.
［実施例］
実施例１
本発明の混合物（Ｒ−１１３／ ｔｒａｎｓ−１，２−
ジクロロエチレン／エタノール＝ ５０．０／４７．０
／３．０重量％）を用いてフラックスの洗浄試験を行な
った。[Example] Example 1 Mixture of the present invention (R-113/ trans-1,2-
Dichloroethylene/ethanol = 50.0/47.0
/3.0% by weight) was used to conduct a flux cleaning test.
プリント基板全面にフラックスを塗布し、２００℃の電
気炉で２分間焼成後、本発明の前記混合物に１分間浸漬
した。比較例としてＲ１１３についても同様の試験を行
なった。フラックスの除去の度合いを第１表に示す。Flux was applied to the entire surface of the printed circuit board, baked in an electric furnace at 200° C. for 2 minutes, and then immersed in the mixture of the present invention for 1 minute. A similar test was also conducted for R113 as a comparative example. Table 1 shows the degree of flux removal.
第１表
０：良好に除去できる ○：はぼ良好△：微量残存
Ｘ：かなり残存実施例２
本発明の混合物（Ｒ−１１３／ ｔｒａｎｓ−１，２−
ジクロロエチレン／エタノール＝ ５０．０／４７．０
／３．０重口％）を用いて機械油の洗浄試験を行なった
。Table 1 0: Can be removed well ○: Good △: Trace amount remains
X: Significant residual Example 2 Mixture of the present invention (R-113/ trans-1,2-
Dichloroethylene/ethanol = 50.0/47.0
/3.0% by weight) was used to conduct a machine oil cleaning test.
５Ｏ３−３０４のテストピース（２５ｍｍＸ ３０ｍｍ
Ｘ ２ ｍｍ厚）を機械油中に浸漬した後、本発明の前
記混合物に５分間浸漬した。比較例としてＲ１１３につ
いても同様の試験を行なった。機械油の除去の度合いを
第２表に示す。5O3-304 test piece (25mmX 30mm
X 2 mm thick) was immersed in machine oil and then immersed in the mixture of the present invention for 5 minutes. A similar test was also conducted for R113 as a comparative example. Table 2 shows the degree of machine oil removal.
第２表
０：良好に除去できる Ｏ：はぼ良好△：微量残存
Ｘ：かなり残存［発明の効果］Table 2 0: Can be removed well O: Good △: Trace amount remains
X: Significantly remaining [effect of invention]
Claims (1)
ｒａｎｓ−１，２−ジクロロエチレンとエタノールの２
成分共沸混合物とからなるフッ素化炭化水素系共沸様混
合物。 ２、１，１，２−トリクロロトリフルオロエタン９５〜
２０重量％及びｔｒａｎｓ−１，２−ジクロロエチレン
とエタノールの２成分共沸混合物５〜８０重量％からな
る請求項１記載の混合物。[Claims] 1,1,1,2-trichlorotrifluoroethane and t
rans-1,2-dichloroethylene and ethanol 2
A fluorinated hydrocarbon azeotrope-like mixture consisting of a component azeotrope. 2,1,1,2-trichlorotrifluoroethane 95~
2. A mixture according to claim 1, comprising 20% by weight and 5 to 80% by weight of a binary azeotrope of trans-1,2-dichloroethylene and ethanol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63288787A JPH02135289A (en) | 1988-11-17 | 1988-11-17 | Fluorinated hydrocarbon-based azeotropic mixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63288787A JPH02135289A (en) | 1988-11-17 | 1988-11-17 | Fluorinated hydrocarbon-based azeotropic mixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02135289A true JPH02135289A (en) | 1990-05-24 |
Family
ID=17734717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63288787A Pending JPH02135289A (en) | 1988-11-17 | 1988-11-17 | Fluorinated hydrocarbon-based azeotropic mixture |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02135289A (en) |
-
1988
- 1988-11-17 JP JP63288787A patent/JPH02135289A/en active Pending
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