JPH02135295A - Fluorinated hydrocarbon-based azeotropic mixture - Google Patents
Fluorinated hydrocarbon-based azeotropic mixtureInfo
- Publication number
- JPH02135295A JPH02135295A JP63288793A JP28879388A JPH02135295A JP H02135295 A JPH02135295 A JP H02135295A JP 63288793 A JP63288793 A JP 63288793A JP 28879388 A JP28879388 A JP 28879388A JP H02135295 A JPH02135295 A JP H02135295A
- Authority
- JP
- Japan
- Prior art keywords
- mixture
- cyclopentene
- solvent
- fluorinated hydrocarbon
- fluorocarbons
- 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 18
- 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
- LPIQUOYDBNQMRZ-UHFFFAOYSA-N cyclopentene Chemical compound C1CC=CC1 LPIQUOYDBNQMRZ-UHFFFAOYSA-N 0.000 claims abstract description 22
- RGSFGYAAUTVSQA-UHFFFAOYSA-N pentamethylene Natural products C1CCCC1 RGSFGYAAUTVSQA-UHFFFAOYSA-N 0.000 claims abstract description 11
- AJDIZQLSFPQPEY-UHFFFAOYSA-N 1,1,2-Trichlorotrifluoroethane Chemical compound FC(F)(Cl)C(F)(Cl)Cl AJDIZQLSFPQPEY-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000002904 solvent Substances 0.000 abstract description 12
- 230000004907 flux Effects 0.000 abstract description 6
- 239000003921 oil Substances 0.000 abstract description 5
- 239000003795 chemical substances by application Substances 0.000 abstract description 4
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 abstract description 4
- 239000000976 ink Substances 0.000 abstract description 2
- 230000003287 optical effect Effects 0.000 abstract description 2
- 239000001993 wax Substances 0.000 abstract description 2
- 238000000576 coating method Methods 0.000 abstract 1
- 239000003599 detergent Substances 0.000 abstract 1
- 238000004140 cleaning Methods 0.000 description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- 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
- 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
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-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
- -1 chlorine radicals Chemical class 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 150000002170 ethers Chemical class 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
- 239000004338 Dichlorodifluoromethane Substances 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 238000009835 boiling Methods 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
- 239000003063 flame retardant Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 1
- ZXEKIIBDNHEJCQ-UHFFFAOYSA-N isobutanol Chemical compound CC(C)CO ZXEKIIBDNHEJCQ-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
- 239000010721 machine oil 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
- C11D7/5072—Mixtures of only hydrocarbons
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く、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− トリクロロ−1,2,2−トリ
フルオロエクン(R113)が、発泡剤としてトリクロ
ロモノフルオロメタン(旧l)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。[Prior art] Fluorinated hydrocarbon compounds (hereinafter simply referred to as fluorocarbons) are mostly non-toxic, non-flammable, and chemically stable, and various fluorocarbons with different standard boiling points are available, so they can be used to take advantage of these characteristics. Various types of fluorocarbons are used as solvents, blowing agents, propellants, refrigerants, etc. For example, 1,1,2-trichloro-1,2,2-trifluoroecune (R113) is used as a solvent, trichloromonofluoromethane (formerly 1) is used as a blowing agent, and dichlorodifluoromethane (R12) is used as a propellant or refrigerant. is used.
[発明が解決しようとする課題]
化学的に特に安定なR11,R12,rll13は対流
圏内での寿命が長く、拡j1グして成層圏に達し、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。[Problem to be solved by the invention] R11, R12, and rll13, which are particularly chemically stable, have a long life in the troposphere and expand to reach the stratosphere, where they are decomposed by sunlight and generate chlorine radicals. There is a movement to restrict the use of these conventional fluorocarbons because they are said to cause a chain reaction with ozone and destroy the ozone layer.
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
。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
ンが有している優れた特性をFjlj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。An object 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 adding to the excellent properties of these fluorocarbons.
[課題を解決するための手段〕
本発明は1,1.2−1−リクロロフルオロエタン(R
113)及びシクロペンテン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8113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-lichlorofluoroethane (R
113) and cyclopentene. The mixture of the present invention is nonflammable or flame retardant and has higher cleaning power than conventional 8113 alone as a cleaning solvent, so it is extremely useful as a substitute for R113.
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%及びシクロペ
ンテンが5〜807ff量%、好ましくはR113が8
0〜40重量%及びシクロペンテンが20〜60重量%
であり、さらに好ましくはR113が約50重量%とシ
クロペンテンの約50重量%からなる共沸様混合物であ
る。Furthermore, R113 is suitable for the mixture of the present invention because it has the advantage that there is little change in composition even when recycled, it can be used in the same way as conventional single fluorocarbons, and it does not require major changes to the conventional technology. 95-20% by weight and 5-807ff% of cyclopentene, preferably 8% of R113.
0-40% by weight and 20-60% by weight of cyclopentene
More preferably, it is an azeotrope-like mixture consisting of about 50% by weight of R113 and about 50% by weight of cyclopentene.
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In
、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、エタノール、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。Other components may be further added to the mixture of the present invention depending on the intended use. For example, in applications as a solvent, hydrocarbons such as pentane, impentane, hexane, isohexane, heptane, isohebbutane, etc.
, nitroalkanes such as nitromethane, nitroethane, nitropropane, diethylamine, triethylamine,
Amines such as isopropylamine, butylamine, isobutylamine, alcohols such as methanol, ethanol, n-propyl alcohol, i-propyl alcohol, n-butanol, i-butanol, methyl cellosolve, tetrahydrofuran, 1,4-dioxane One or more selected from ethers such as ethers, ketones such as acetone, methyl butyl ketone, methyl butyl ketone, esters such as ethyl acetate, propyl acetate, butyl acetate, etc. can be added and mixed.
本発明の共沸様混合物は、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H’A各種物品、特に工C
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 heat transfer, dry cleaning, etc., like conventional fluorocarbons, and is particularly suitable when used as a solvent because it has a higher dissolving power than conventional R113. Specific uses of solvents include removers for flux, grease, oil, wax, ink, etc.
Paint solvents, extractants, stain removers, glass, ceramics, plastics, rubber, gold H'A various articles, especially industrial C
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1
本発明の混合物(R−113/シクロペンテン=50.
0150.0重量%)を用いてフラックスの洗浄試験を
行なった。Example 1 Mixture of the present invention (R-113/cyclopentene=50.
A flux cleaning test was conducted using 0150.0% by weight).
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6
第1表
0:良好に除去できる ○:はぼ良好△:微量残存
×:かなり残存実施例2
本発明の混合物(R−113/シクロペンテン=50、
0150.0重量%)を用いて(幾械油の洗浄試験を行
なった。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. The degree of flux removal is shown in Table 16 Table 1 0: Good removal ○: Good △: Trace amount remaining
×: Significant residual Example 2 Mixture of the present invention (R-113/cyclopentene = 50,
A cleaning test for mechanical oil was conducted using (0150.0% by weight).
5OS−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。比較例として旧13につい
ても同様の試験を行なった。1幾械油の除去の度合いを
第2表に示す。5OS-304 test piece (25mm x 30mm
X 2 mm thick) was immersed in machine oil and then immersed in the mixture of the present invention for 5 minutes. As a comparative example, a similar test was conducted on the old No. 13. Table 2 shows the degree of removal of mechanical oil.
第2表
0:良好に除去できる ○:はぼ良好△:微量残存
X:かなり残存[発明の効果]
本発明のフッ素化炭化水素系共沸様混合物は、従来のフ
ロンが有している優れた特性を満足しながら該フロンの
使用量低減ができるとともに、リサイクルさせても組成
変動の少ないことから、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等の利点があ
る。又、溶剤としてよく使われているR113単体より
もフラックスや油等の溶解除去性に優れるためR113
に替わる洗浄溶剤として好適である。Table 2 0: Can be removed well ○: Good △: Trace amount remains
X: Significant residual [Effect of the invention] The fluorinated hydrocarbon azeotrope-like mixture of the present invention can reduce the amount of fluorocarbon used while satisfying the excellent properties of conventional fluorocarbons, and can also be recycled. It has the advantage that it can be used in the same way as conventional single fluorocarbons, and does not require major changes in conventional technology, since there is little compositional variation even when using chlorofluorocarbons. In addition, R113 has better ability to dissolve and remove flux and oil than R113 alone, which is often used as a solvent.
It is suitable as an alternative cleaning solvent.
Claims (1)
クロペンテン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%及びシクロペンテン5〜80重量%からなる
請求項1記載の混合物。[Claims] A fluorinated hydrocarbon azeotrope-like mixture consisting of 1,1,1,2-trichlorotrifluoroethane and cyclopentene. 2,1,1,2-trichlorotrifluoroethane 95~
20% by weight of cyclopentene and 5-80% by weight of cyclopentene.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP63288793A JPH02135295A (en) | 1988-11-17 | 1988-11-17 | Fluorinated hydrocarbon-based azeotropic mixture |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP63288793A JPH02135295A (en) | 1988-11-17 | 1988-11-17 | Fluorinated hydrocarbon-based azeotropic mixture |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH02135295A true JPH02135295A (en) | 1990-05-24 |
Family
ID=17734800
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP63288793A Pending JPH02135295A (en) | 1988-11-17 | 1988-11-17 | Fluorinated hydrocarbon-based azeotropic mixture |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH02135295A (en) |
-
1988
- 1988-11-17 JP JP63288793A patent/JPH02135295A/en active Pending
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