• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A propellant comprising liquified hydrocarbon which is propane, butane or isobutane with 2 to 20% of a chlorohydrocarbon which is dichloromethane or 1,1,1-trichloroethane is prepared by passing the liquified hydrocarbon through a coarse filter to separate oily impurities and then through a fine filter to remove odor causing impurities while simultaneously feeding the chlorohydrocarbon into the hydrocarbon. There is also described an apparatus for carrying out the process comprising feeding means, coarse filtering means, fine filtering means, gas sterilization filtering means, additional fine filtering means, a pressure container, pumping means on the outlet side of the pressure container and a pressure line connecting all of these elements of the apparatus.
    公开号:SU1050568A3
    申请号:SU782648210
    申请日:1978-07-28
    公开日:1983-10-23
    发明作者:Виттенхорст Аугустинус
    申请人:Фон Трой Аг (Фирма)；
    IPC主号:
    专利说明:

    This invention relates to propellants for aerosols and methods for making it. Gaseous fluorine and chlorine derivatives of hydrocarbons are known as aerosol propellants with reduced inflammability for aerosols, but their penetration into the ozone range contributes to the absorption of ultraviolet rays. B1.1.Tes1style for aerosols containing propane and / are known or butane as well as dichloromethane and, 1,1-trichloroethane or mixtures thereof. At the same time, the components of the gas igniters are doled to the active substance for the resulting aerosol, and the individual components are alternately filled with an aerosol can. For propane and butane, pre-purification is carried out by Tl I filtration. A disadvantage of the known propellant is its combustibility. The object of the invention is to reduce the flammability of the propellant. The goal is achieved by the fact that the propellant gas for aerosols, propane and / or butane, as well as dichloromethane and / or 1,1,1-trichloroethane or their mixtures, additionally contains additives from the group of carbon dioxide compounds, nitrous oxide - or inert gas in the following ratio of components, May.%; Dichloromethane and / or 1.8-19.9 1,1,1-trichloroet n Additives from the group of compounds of carbon dioxide, nitrous oxide or inert 0.5-10 Propane and / or butane Else In this case, according to the method of producing propellant, To ensure that the components are filtered by mixing them, propane and / or butane liquefied under pressure, of a technical degree of purity is subjected to coarse filtration with separation of oily impurities, then fine filtration to separate substances with foreign odors, while dichloromethane is added in portions / or trichloroethane and mix it with the indicated hydrocarbon, and then the mixture is ornated, filtered, collected and dissolved in it under pressure by compounds from the group. / carbon dioxide, nitrous oxide, inert gas. The addition of such small amounts of the chlorine derivative of the hydrocarbon greatly decreases or completely eliminates the grit; / levodorodov. Example 1. A mixture of good hydrocarbons of composition: 85% by weight of butane and 2% by weight. % carbon dioxide is injected through the feeder into the injection pipe. bp under pressure of 2-10 bar. After passing through the first coarse filter, they are in contact with dichloromethane in the first filter in a quantity of 13% by weight of the total mixture. Hydrocarbons are purified there with simultaneous mixing with dichloromethane. In (the adjacent gas-disinfecting filter continues mixing, cleaning, and these processes are maintained by supplying carbon dioxide. After that, carbon dioxide remains in the vie / je inert but volatile component in a mixture of hydrocarbons and dichdormethane. In the next fine filter, the mixture is continued enrich with dichloromethane and och Search. In the third fine filter, the mixture is brought into contact with additional substances, in particular trapping flames, with which further mixing and purification It is also enriched. A period of at least 2 hours is provided for the passage from the other reservoir of the pressure reservoir. Circulating up to six times, the necessary content of dichloromethane is up to 20% by weight. When the proposed propeller is used for aerosols and a spray jet is directed It was possible to quench the last Reverse action, even with a slight content of alcoholic solvents in the aerosols of the active substance or combination of active substances, on a weak flame. Example 2. The studies were carried out similarly to method 1, only the mixture of liquid hydrocarbons had the following composition; wt.%: butane 85, carbon dioxide I, argon I, and stirring with simultaneous purification is carried out with dichloromethane, taken in an amount of 13 wt.% of the total mixture. 1 L and R 3. The studies were carried out similarly to method 1, only the mixture of liquid hydrocarbons had the following composition: 88% by weight of propane and / or butane, 1% by weight of carbon dioxide, and mixing with simultaneous purification was carried out with dichloromethane and / or 1,1,1-trichlrretan taken in the amount of 11 wt.% Of the total amount. The ratio of propane: butane is 1: 3, and the ratio of dichloroethane: trichloroethane is 85:15. When the sprayed jet of aerosol was directed to the Bunsen burner apam when using such a gas-igniter, it was therefore rejected. There was no arcing of the flame; on the contrary, the flame burned noticeably weaker than the prehshy. This result proves reduced flammability. Practically, the propellant itself turned out to be even non-flammable. Relative to the justification of the lower and upper limits are reported as follows. Propane / or butane are crucial, especially for the displacement properties. Basically, through these components, the required vapor pressure is created in aerosols. Since, as a rule, the vapor pressure is not only given by the OD1ShM gas-displacement body, but if necessary with the participation of additives and solvents (additives), the amount of propane / butane should be in the Final, account. choose depending on them. Strictly speaking, the lower and upper limits indicated are not. absolute values, and give the interval taken into account to obtain conventional aerosols. Within this interval, the weight percentage can be determined, which usually has a long pushing effect on aerosols until the can is completely exhausted. This not only ensures minimal vapor pressure, but also makes it possible to work with values less than the maximum allowed. This depends on the internal propane / butane ratio of the mixture in the mixture. For many applications, an internal propane / butane ratio of 35/65 is best suited. It should be mentioned that the propane / butane ratio in the mixture affects the fluidity of the propellant, since the burning characteristics of propane and butane are somewhat different from g)) ha. Of course, this is of secondary importance and in practice it’s not 10 8 that attention should be paid to iia. You can learn more from the test results. . . . 2. Dichloromethane, methylene chloride and / or 1,1,1-trichloroethane serve essentially to reduce the flammability. Due to possible harmful side effects on the environment, in particular on human health (for example, mutagenic properties, damage to the liver, etc.), the Ministry of Health of the Federal Republic of Germany permits no more than 35 wt.% Of these components to be introduced into cosmetics and household aerosols. aerosols, insecticides, etc. Restrictions None. The goal is. opportunities to lower the upper limit in the interests of environmental protection. Therefore, the upper limit is ultimately based on a voluntary restriction for the reasons given. For these components it is also valid that their properties are not the only decisive factor for future aerosols. The proportion of these components should also be selected depending on the degree of flammability of other components of future aerosols, i.e. additives or additives and corresponding ra-. from this point of view should be considered, in particular, the lower pred1Vl. It remains effective in supplements with very low flammability, respectively flammability. Finally, it should be mentioned that Dichloromethane is essentially replaced by 1,1,1-trichloroethane, if this concerns flammability. But if it concerns the dissolving power for additives, then both substances are different from each other. The latter in most cases determines in practice the internal ratio of the components of the mixture. 3. Other components: carbon dioxide, nitric oxide and / or inert gas further improve the performance of these components. For example, they themselves are not combustible and for this reason reduce the combustibility of the carrier gas. In addition, they definitely increase the flow rate, which leads to the rapid suspension of the jet and cim -; - to the life of the concentration values that are not critical. As a result, the proposed. gaz-vystec shtep mohset sode.rzhat ot-
    relatively little dichloromethane (1, trichlrretan). Due to its own extrusion action, a lower content of propane / butane is also sufficient.
    The lower limit must be observed to obtain a certain target action. The upper limit is due to solubility, although C02 has a still greater solubility. But the limit is. Reducing up to 10% by weight may be appropriate for another reason. In particular, a number of additives contain water and are sold in rigid packages (rigid jars). Limiting the content of CQjf to 10 wt.% Means
    limiting possible corrosion hazards.
    Thus, the proposed gas remover has a good displaced action, almost or even not at all flammable, and is also almost incapable of affecting the ozone in an unfavorable way. A further advantage of the propellant is that it is easily miscible with almost all active substances. Or combinations thereof, so that phase separation is no longer observed and good dosage is provided for with a thin {radfluement and spraying.
    权利要求:
    Claims (2)
    [1]
    1.Gas propellant for aerosols. retentive propane and / or butane, as well as dichloromethane / and / or 1,1,1-trichloroethane or mixtures thereof, characterized in that, in order to reduce combustibility, the propellant additionally contains additives from the group of compounds of carbon dioxide, nitrous oxide or inert gas in the following ratio of components, 'wt.%:
    Dichloromethane and / or
    I, 1,1-trichloroethane 1.8-19.9
    Additives from the group of compounds of carbon dioxide, nitrous oxide or inert gas
    Propane and / or Butane
    0.5-10.0
    Rest
    [2]
    2. A method of producing a propellant for aerosols according to claim> 1, which includes cleaning the components by filtration and mixing them, htq. That is, htq liquefied propane and / or butane is subjected to technical purity coarse filtration with the separation of oily impurities, then filtering to separate substances that are inextricable with odors, at the same time add dichloromethane and / or trichloroethane | and mixed with the specified carbohydrate-g kind, and then the mixture is irrigated, filtered, collected and dissolved in it under pressure from a group of: carbon dioxide, nitrous oxide, inert gas.
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    同族专利:
    公开号 | 公开日
    BE869336A|1978-11-16|
    DE2734490B2|1979-08-30|
    ATA552278A|1981-07-15|
    DD137596A5|1979-09-12|
    GB2002805A|1979-02-28|
    FR2398790B1|1983-07-08|
    IT1111324B|1986-01-13|
    FR2398790A1|1979-02-23|
    CA1120207A|1982-03-23|
    RO76267A|1981-03-30|
    AT366084B|1982-03-10|
    US4233177A|1980-11-11|
    DE2734490A1|1979-02-01|
    GB2002805B|1982-04-21|
    US4354955A|1982-10-19|
    NL7807995A|1979-02-01|
    CH636118A5|1983-05-13|
    JPS5441283A|1979-04-02|
    IT7885588D0|1978-07-28|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3102101A|1961-06-06|1963-08-27|Procter & Gamble|Deodorant compositions and the methods of use|
    US3776873A|1968-07-22|1973-12-04|Minnesota Mining & Mfg|Sprayable compositions|
    DE1964794A1|1969-12-24|1971-07-01|Therachemie Chem Therapeut|Improved hair sprays|
    US3884828A|1970-10-15|1975-05-20|Dow Corning|Propellants and refrigerants based on trifluoropropene|
    US3822145A|1971-11-15|1974-07-02|Colgate Palmolive Co|Fabric softening|
    BE793901A|1972-01-11|1973-07-11|Procter & Gamble|COMPOSITION OF A SUSPENSION AGENT FOR AEROSOL POWDERS AND PROCESS FOR OBTAINING IT|
    DE2524695C2|1974-06-12|1984-05-30|Colgate-Palmolive Co., New York, N.Y.|Powder aerosol deodorant mixtures|
    GB1479706A|1975-02-27|1977-07-13|Wilkinson Sword Ltd|Aerosol foams|
    US4017418A|1975-08-18|1977-04-12|Chemetron Corporation|Process for making colloidal sols of antimony pentoxide in polar organic solvents|
    GB1578331A|1976-02-18|1980-11-05|Unilever Ltd|Aerosol compositions|
    GB1544157A|1976-09-15|1979-04-11|Johnson & Son Inc S C|Aerosol propellant system and compositions including the same|JPS6346115B2|1977-12-08|1988-09-13|Oosaka Eyazooru Kogyo Kk|
    JPS5975745A|1982-10-22|1984-04-28|Matsushita Electric Ind Co Ltd|Incoming response system of automatic exchange|
    US4482465A|1983-03-07|1984-11-13|Phillips Petroleum Company|Hydrocarbon-halocarbon refrigerant blends|
    US5115868A|1989-10-04|1992-05-26|E. I. Du Pont De Nemours And Company|Fire extinguishing composition and process|
    US5040609A|1989-10-04|1991-08-20|E. I. Du Pont De Nemours And Company|Fire extinguishing composition and process|
    US5234613A|1991-09-30|1993-08-10|E.I. Du Pont De Nemours And Company|Substantially constant boiling compositions of difluoromethane and propane|
    US5844317A|1995-12-21|1998-12-01|International Business Machines Corporation|Consolidated chip design for wire bond and flip-chip package technologies|
    US6274062B1|1996-10-07|2001-08-14|James B. Tieken|Halocarbon/hydrocarbon refrigerant blend|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE2734490A|DE2734490B2|1977-07-30|1977-07-30|Propellant with reduced flammability for aerosols, process for its production and device for carrying out the process|
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