WO2004074397A1 - 不凍液、及びそれに用いうる防錆剤 - Google Patents
不凍液、及びそれに用いうる防錆剤 Download PDFInfo
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- WO2004074397A1 WO2004074397A1 PCT/JP2004/000875 JP2004000875W WO2004074397A1 WO 2004074397 A1 WO2004074397 A1 WO 2004074397A1 JP 2004000875 W JP2004000875 W JP 2004000875W WO 2004074397 A1 WO2004074397 A1 WO 2004074397A1
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- acid
- antifreeze
- weight
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- water
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
- C09K5/20—Antifreeze additives therefor, e.g. for radiator liquids
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/18—Materials not provided for elsewhere for application to surfaces to minimize adherence of ice, mist or water thereto; Thawing or antifreeze materials for application to surfaces
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
- C09K5/08—Materials not undergoing a change of physical state when used
- C09K5/10—Liquid materials
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
- C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
- C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
- C23F11/10—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using organic inhibitors
- C23F11/12—Oxygen-containing compounds
Definitions
- the present invention relates to an antifreeze liquid which is used by being added to a heat medium for heat exchange equipment and a radiator liquid for an internal combustion engine such as an automobile engine and which does not freeze even at a low temperature which can be used for preventing freezing of roads and the like.
- the chemicals added to such a cooling liquid glycols and alcohols, which lower the freezing point to prevent freezing, are mainly used.
- a corrosion inhibitor, a corrosion inhibitor, an oxidation inhibitor, and the like are added to these components to extend their life (see, for example, Japanese Patent Application Laid-Open No. 7-15878). Publication No. 6 (Claims) and Japanese Patent Application Laid-Open No. 2002-97464 (Claims).
- ethylene daricol has been used in large quantities in the past.
- an antifreezing agent mainly composed of sodium chloride or calcium chloride for example, Japanese Patent Application Laid-Open No. 11-61095 (the scope of patent request), Japanese Patent Application Laid-Open No.
- Restricted substances include substances that may fall under harmful air pollutants, such as sulfur-based, chlorine-based additives, boron compounds, nitrites and derivatives thereof, formaldehyde and its derivatives, hydroxylamine, Examples include amines such as diethano / reamine, nitrosamine, and triethanolamine, PCP, PCB, etc., other dioxin-containing substances, heavy metals, and substances such as ethylene dalicol.
- the above-mentioned prior art antifreeze contains the above-mentioned substances. Therefore, development of antifreeze using substances that do not pollute the environment has been awaited.
- anti-freezing agents for preventing road freeze contain-chlorides, so that metal is liable to spread and deteriorates the metal that forms the body, the coating that protects the electrical system, and the tires. In addition, it leads to deterioration of scaling of concrete and asphalt. When dissolved by water, it contaminates the soil around roads and affects the ecology of animals and plants. Due to the above effects, some municipalities have stopped using chloride and some have used acetic acid as a substitute. Acetic acid cannot be used in large quantities because it is more expensive than the above chlorides. For this reason, some local governments prohibit traffic on frozen roads. Therefore, the development of an inexpensive and environmentally friendly deicing agent has been awaited.
- Hot water was used as the snow-melting agent to remove snow on the roof, etc. However, in some cases, it could not be snow-removed due to solidification as the air temperature dropped.
- the inventors of the present invention have made intensive studies to provide an antifreeze solution that can be used for various uses such as a radiator solution, an antifreezing agent, and a snow melting agent, and have arrived at the present invention.
- the antifreeze of the present invention complies with the above-mentioned legal restrictions on the materials used, and is composed of components that do not adversely affect environmental protection, hygiene, and animals and plants. It does not freeze even in the environment. It is environmentally friendly because it does not require complicated treatment when draining. Disclosure of the invention
- the antifreeze of the present invention can be used by adding it to a heat medium for heat exchange equipment or a radiator liquid for an internal combustion engine such as an automobile engine. It can also be used as a deicing agent for roads and the like, and as a snow melting agent.
- the antifreeze of the present invention is characterized in that it contains glycerin and does not use ethylene glycol.
- the antifreeze of the present invention may have a freezing point of ⁇ 20 ° C. or less, and more preferably ⁇ 50 ° C.
- the antifreeze solution of the present invention does not contain ethylene dalicol, has a freezing point of ⁇ 20 ° C. or less, and can mix the following solutions A and B.
- At least one substance selected from the group consisting of triazoles, chelating agents, saturated fatty acids, and unsaturated fatty acids.
- antifreeze of the present invention may contain propylene glycols.
- the dicarboxylic acid can be selected from dodecanoic acid or sebacic acid.
- the metal hydroxide salt may be one or more selected from sodium hydroxide, calcium hydroxide, and potassium hydroxide.
- the triazoles can be tolyltriazole or benzotriazole.
- the chelating agent can be an ethylenediaminetetraacetic acid complex.
- the saturated fatty acid may be one or more selected from the group consisting of cabronic acid, caprylic acid, decanoic acid, lauric acid, myristic acid, palmitic acid, and stearic acid.
- Unsaturated fatty acids include oleic acid, pacenoic acid, linoleic acid, and linoleic acid. Or one or more selected from the group consisting of arachidonic acid.
- the ratio of each component of the solution B is as follows:
- Chelating agent 0% to 20.0% by weight
- Dicarboxylic acid 0.1% to 10.0% by weight
- Triazoles 0% to 10.0% by weight
- Saturated and / or unsaturated fatty acids 1.0% to 50.0% by weight
- Metal hydroxide aqueous solution 0.10% to 20.0% by weight
- Water 30.0% to 95.0% by weight
- Still another embodiment of the antifreeze of the present invention does not contain ethylene dalicol, has a freezing point of -20 ° C or lower, and may have the following configuration.
- Ethylenediamine tetraacetic acid complex 0.5% to 20.0% by weight
- Dodecanenic acid 0.1% by weight. /.
- Tolyltriazole 0.1% to 10.0% by weight
- Caprylic acid and Z or oleic acid 1.0% to 50.0% by weight
- Metal hydroxide aqueous solution 0.10% by weight %
- To 20.0% by weight water 30.0% to 95.0% by weight.
- forceprillic acid or oleic acid forceprillic acid: 1.0 weight 0 /. ⁇ 25.0 weight 0/0, Orein acid: 1.0 weight 0 /. ⁇ 25. 0 weight 0/0 obtained You.
- the component ratio of the solution B is as follows:
- Echirenjiamin 4 acetic acid complex 1.0% to 10 0 weight 0/0 dodecanedioic acid: 0.5% to 5.0% by weight
- preparative Rinoretori azole 0.5 weight 0 /. ⁇ 5.0 weight 0/0 force prills acid: 2.0% by weight to 20 0% by weight
- Orein acid 2.0 weight 0 /. ⁇ 20.0 wt 0/0 aqueous metal hydroxide solution: 1.0% to 1 5.0% by weight
- the antifreeze may further include dipropylene glycol.
- the antifreeze may further contain a polyvalent phenol.
- the polyhydric phenols may be one or more substances selected from flavonoids, coumarins, phenol propanoides, and tannins.
- the solution containing glycerin (solution A) in the antifreeze of the present invention may be 1% by weight to 99% by weight based on the total amount of the antifreeze.
- the weight ratio of glycerin to propylene dalicol in Solution A may be 99.5: 0.5 to 0.5: 99.5.
- the antifreeze further contains an aqueous solution of water glass, and can be used as a deicing agent.
- the antibacterial agent of the present invention is characterized by containing the following components.
- At least one substance selected from the group consisting of triazoles, chelating agents, saturated fatty acids, and unsaturated fatty acids.
- the dicarboxylic acid can be selected from dodecane diacid and sebacic acid.
- the metal hydroxide salt may be one or more selected from the group consisting of sodium hydroxide, calcium hydroxide, and lithium hydroxide.
- triazoles are tolyltriazole or benzotriazole. possible.
- the chelating agent may be an ethylenediaminetetraacetic acid complex.
- the saturated fatty acid may be one or more selected from the group consisting of cabronic acid, caprylic acid, decanoic acid, lauric acid, myristic acid, palmitic acid, stearic acid.
- the unsaturated fatty acid may be one or more selected from the group consisting of oleic acid, vaccenic acid, linoleic acid, linoleic acid, and arachidonic acid.
- each component ratio is as follows:
- Chelating agent 0 weight 0 /. ⁇ 20.0 weight 0/0
- Dicarboxylic acid 0.1% to 10.0% by weight
- Triazoles 0% to 10.0% by weight
- Saturated and / or unsaturated fatty acids 1.0% to 55.0% by weight
- Metal hydroxide aqueous solution 0.10% to 20.0% by weight
- Water 30.0% to 95.0% by weight
- the component ratio of the solution B is as follows:
- E-min tetraacetic acid complex 0.5% by weight to 20%
- Dodecaneic acid 0 1% by weight to 10
- Toriltori Zonore 0 1% by weight to 10
- Caprylic acid 10% by weight to 250%
- Oleic acid 0 wt% to 25.0 wt%
- Metal hydroxide aqueous solution 0 10 wt% to 20.0 wt%
- Water 30.0 wt% to 95.0 weight ".
- a t- ethylenediaminetetraacetic acid complex which may contain the following components:
- Still another embodiment of the present invention may include the following components.
- Ethylenediamine tetraacetic acid complex 0.5% to 20.0% by weight
- Dodecane acid 0.1% to 10.0% by weight
- Tolyltriazole 0.1% to 10.0% by weight
- Acrylic acid and / or oleic acid 1.0% to 50.0% by weight
- Metal hydroxide aqueous solution 0.1% to 20.0% by weight
- the antioxidant of the present invention may further contain a polyhydric phenol.
- the polyvalent phenols may be one or more substances selected from the group consisting of flavonoids, coumarins, phenylpropanoides, and tannins.
- polyhydric phenols may be contained at 1 ⁇ 10 16 % by weight to 1% by weight.
- FIG. 1 is a view showing an aspect of spraying on a roof surface when the antifreeze solution of the present invention is used as a snow melting agent.
- the antifreeze of the present invention is basically an antifreeze containing glycerin or a derivative thereof, does not use ethylene glycol, and is composed of components that do not adversely affect the environment, and surpasses conventionally used antifreeze. Has performance.
- the antifreeze of the present invention is a substance that may be classified as a harmful air pollutant designated by the Environmental Management Bureau of the Ministry of the Environment, Japan (Amended Air Pollution Control Law (enforced on April 1, 1997). It does not contain any ethylene glycol listed in Article 2, paragraph 9).
- the antifreeze of the present invention can have a freezing point of ⁇ 20 ° C. or less in the form of a concentrated liquid that is not diluted. Even at temperatures below this, it is a sherbet-like solid and does not solidify. Depending on the example of component adjustment, the coagulation temperature can be lower than -50 ° C.
- the antifreeze of the present invention can also be produced from glycerin or a derivative thereof. For example, it has been demonstrated in the present invention that a mixture consisting of 25% water / 75% glycerin does not freeze to minus 90 ° C.
- the antifreeze of the present invention is obtained by mixing solution A containing glycerin or a derivative thereof and solution B containing a specific component.
- Solution A may contain water-soluble alcohols or derivatives thereof in addition to glycerin.
- Ingredients that can be included in addition to glycerin include, for example, glycerin. May be included.
- alcohol derivatives is a concept including alcohol esters and ethers.
- Glycerin and the like impart a cooling effect to the antifreeze of the present invention, and also impart an appropriate viscosity according to the mode of use. It also has the effect of facilitating the adhesion of the antifreeze to the adherend. Furthermore, glycerin and the like, when used as a mixture with other solvents, for example, an aqueous solution, particularly contributes to lowering the freezing point of antifreeze. Furthermore, they have a pH stabilizing effect.
- the component ratio of glycerin in the solution A is preferably 0.5 to 100% by weight.
- Propylene glycol is preferably used as another component A of dariserin.
- the weight ratio of glycerin to propylene glycol in solution A is preferably 99.5: 0.5 to 0.5: 99.5.
- the ratio of glycerin to the other A component can be set appropriately according to the application.
- the solution B can basically ensure the effect of preventing metal from deteriorating and the effect of further lowering the freezing point.
- Solution B may include the following components. That is, it contains water as a main component, and further contains a dicarboxylic acid and an aqueous metal hydroxide solution. In addition, it is composed of one or more substances selected from the group consisting of triazoles, chelating agents, saturated fatty acids, and unsaturated fatty acids.
- Solution B is a component of the antifreeze solution of the present invention, but can be used alone as an antifreeze.
- dicarboxylic acid dodecanedioic acid, sebacic acid and the like can be preferably used.
- a preferable component ratio in the liquid B may be from 0.1% by weight to 10.0% by weight.
- Metal hydroxides include sodium hydroxide, potassium hydroxide, and calcium hydroxide. Note that chlorine-based metal salts are not used. These are aqueous solutions dissolved in water It is preferable from the viewpoint of handling. This aqueous solution is preferably diluted 3 to 5 times with water. The preferred component ratio of the aqueous metal hydroxide solution in the liquid B can be 0.10% by weight to 20.0% by weight.
- Triazoles are exemplified by tolyltriazole or benzotriazole.
- the preferable component ratio in the solution B is 0% by weight to 10.0% by weight.
- chelating agent examples include ethylenediaminetetraacetic acid, utriloacetic acid, and complexes of these metal salts and ions.
- a preferable component ratio in the solution B may be 0% by weight to 20.0% by weight.
- Solution B used in the present invention further contains saturated fatty acids and / or unsaturated fatty acids.
- saturated fatty acid include caprylic acid, caproic acid, decanoic acid, lauric acid, myristic acid, palmitic acid, and stearic acid, and at least one of them can be selected.
- unsaturated fatty acid can be selected, for example, from at least one of oleic acid, linoleic acid and linoleic acid.
- These saturated fatty acids and unsaturated fatty acids can be used alone or in combination of two or more.
- the saturated fatty acid caprylic acid and the unsaturated fatty acid oleic acid can be used as components of the antifreeze of the present invention.
- the preferred component ratio of the saturated fatty acid and / or unsaturated fatty acid in the solution B is 0% by weight to 50.0% by weight, and when the saturated fatty acid and the unsaturated fatty acid are used, each is 1.0% by weight / 0 . ⁇ 25.0% by weight.
- Water is contained as a main component, and basically, deionized water, purified water, distilled water, tap water, or mineral spring water can be used.
- the preferable component ratio contained in the solution B may be 30.0% by weight to 95.0% by weight.
- the antifreeze of the present invention may further contain dipropylenedaricol in addition to the above components.
- Dipropylene dalicol is preferable when added to the antifreeze of the present invention, since the pH value is stable even when the antifreeze is used in a high-temperature environment.
- the antifreeze solution of the present invention it can be contained preferably in the range of 0.01% by weight to 10.0% by weight in the solution B which has a protective effect.
- dipropylene glycol can be used as a component of the anti-oxidant of the present invention, and can be used in addition to the above components.
- the antifreeze of the present invention may contain a polyvalent phenol.
- polyvalent phenols are derived from flavonoids, coumarins, phenylpropanoids, and tannins. It can be one or more substances of choice.
- the polyhydric phenols may be contained preferably in the range of 1 ⁇ 10 to 6 % by weight to 1% by weight in Solution B, which has a protective effect.
- Flavonoids include, for example, baicalin, chrysin, myricetin, dihydromyricetin, morin, naringin, taenorsetin, quercitrin, noretin, and wogonin.
- Coumarins include coumarin, esculetin, scopoletin, and scopoletin.
- the propane compounds include caffeic acid, chlorogenic acid, keichic acid, and tamaric acid.
- the tannins include epigallocatechin, gallic acid, and tannin.
- the antifreeze of the present invention may further contain an antifoaming agent depending on the mode of use.
- the method and order of mixing the above components are not particularly limited.
- the B solution components are adjusted, and these are dissolved in water to prepare the B solution used in the present invention. Thereafter, this aqueous solution is mixed with the solution A containing glycerin.
- a part of the solution B may be dissolved in water, the solution may be mixed with the solution A containing glycerin, and then the remaining components of the solution B may be dissolved.
- the other remaining components and the remainder of the solution A containing glycerin and the like may be mixed.
- One embodiment of the present invention may be a liquid mixture containing glycerin as the liquid A and the following components as the liquid B. That is, ethylenediaminetetraacetic acid complex, tolyltriazole, dodecanoic acid, caprylic acid and / or oleic acid, aqueous metal hydroxide solution, dipropylenedaricol, polyhydric phenols, especially chlorogenic acid, and the balance water. .
- the antifreeze of the present invention does not contain substances considered to be bad for the environment, and has an effect of synergistically lowering the coagulation temperature with Solution A. In addition, it has protection and cleaning effects.
- the components of the solution A and the solution B can be selected within the range described above according to the use.
- the weight ratio of solution A and solution B is, for example, when used as an antifreeze for radiator, the ratio between 99: 1 and 1:99 is required in order to obtain both the protection effect and the effect of lowering the freezing point. A range is preferred.
- the ratio of the liquid A and the liquid B in the antifreeze of the present invention can be appropriately selected.
- solution A is a solution containing glycerin
- the components of solution B and their volume ratios are as follows: You can choose. That is,
- Liquid A liquid containing glycerin and propylene glycol
- Liquid B mixed liquid containing the following components
- Antifreeze containing these components is particularly preferable in terms of the anti-freezing effect.
- a ratio of these components for example,
- Liquid A liquid containing glycerin and propylene glycol
- Liquid B mixed liquid containing the following components
- Echirenjiamin 4 acetic acid complex from 0.5 to 20 weight 0/0, preferably from 0.5 to 10 wt%,
- Dodecanedioic acid 0.1 to 10 0 weight 0/0, preferably from 0.5 to 5 0 double tolyltriazole:. 0. 1: 1 0. 0 weight 0/0, preferably, 0.5 ⁇ 5.0% by weight,
- Power prill acid 1.0 to 25 0 weight 0/0, preferably from 2.0 to 20 0 double Orein acid:.. 1.0 to 25 0 weight 0/0, preferably, from 2.0 to 20 0 weight 0
- Metal hydroxide aqueous solution 0.10 to 20.0% by weight, preferably 1.0 to 15.0% by weight,
- Water 30.0 to 95 0 weight 0/0, preferably 30.0 to 90 0 weight 0/0..
- dipropylene glycol when dipropylene glycol is contained, it is preferably contained in an amount of about 0.01% to 10.0% by weight. Further, when chlorogenic acid is contained, the content is preferably 1 ⁇ 10 16 % by weight to: 1% by weight.
- the antifreeze solution of the present invention also includes an embodiment in which the solution A contains propylene glycol in addition to glycerin.
- the weight ratio of glycerin to propylene glycol can be 99.5: 0.5 to 0.5: 99.5.
- the antifreeze solution of the present invention having the above-mentioned component ratio has been demonstrated to have a favorable effect because the effect of lowering the freezing point by glycerin and the like, the effect of preventing the component B solution and the effect of further lowering the freezing point are synergistic.
- the antifreeze of the present invention preferably has a hydrogen ion concentration in the range of pH 7.0 to pH 13.0, preferably pH 7.0 to pH 12.0.
- the pH is adjusted by selecting the compounding ratio of the constituent components according to the usage mode, and the corrosion of various metals, for example, the surface of various metals such as copper, aluminum, iron, steel, or alloys thereof, is prevented. Can be prevented.
- a solution obtained by diluting an antifreeze having the above composition 15 times with distilled water has a pH of 9.0 to 9.5. Does not occur.
- the solution A is glycerin and the solution B is adjusted by the adjustment example 1, and the solution A is 75% and the solution B is 25%, a freezing point of minus 107.8 ° C. Has been measured and a remarkable antifreeze effect has been demonstrated.
- the antifreeze of the present invention has a cleaning effect in addition to a protective effect.
- a cleaning effect in addition to a protective effect.
- it when used as an antifreeze that circulates in the radiator, engine, and pipes of automobiles, it does not damage metal radiators, engines, pipes, and surrounding equipment. Therefore, it can be used not only in automobiles but also in the aviation and space fields, such as as a cooling medium for engine cooling systems for aircraft flying in the troposphere and stratosphere where the temperature is below zero. it can.
- sediment even when used for a long period of time, sediment hardly forms, and an excellent antifreeze effect and a protection effect are maintained. Therefore, there is no complexity in periodically changing the liquid.
- latent heat storage can be applied to latent heat storage, and can be used as a heating medium for floor heating, ice storage, and the like.
- the antifreeze of the present invention does not use raw materials requiring special waste liquid treatment, after use, the waste liquid has no adverse effect on the environment and can be drained by ordinary treatment.
- the above-prepared antifreeze can be used as an antifreezing agent.
- a deicing agent When used as a deicing agent, it can be sprayed on asphalt, concrete, tiles, and other paved surfaces of roads and parking lots to prevent freezing.When used as a deicing agent, adheres to scattered roads.
- a thickener is not particularly limited as long as the thickening effect can be added even at a low temperature, and examples thereof include bentonite, aluminosilicate, and non-ionic cellulose derivative hydroxyxethyl cellulose.
- a mixed solution obtained by mixing these as an aqueous solution with the antifreeze of the present invention can be suitably used as an antifreezing agent.
- As the aqueous solution of water glass for example, water glass diluted 2 to 10 times with water is used.
- the volume ratio between the antifreeze solution and the aqueous solution of water glass adjusted as described above is preferably 1: 2 to 2: 1.
- This adjusted liquid is used as a stock solution, a suitable coagulation range is selected according to the temperature, the dilution is adjusted as appropriate with water, and the liquid is sprayed on the surface of a road or a parking lot. Note that, even when a stock solution was used as the antifreezing agent, the same evaluation as water was obtained in a slip test using a traveling vehicle.
- the antifreeze used for the antifreeze prepared above When the antifreeze used for the antifreeze prepared above is sprayed on a frozen road surface, the water on the frozen road surface thaws.
- the above liquid has a particularly large thawing effect when used in warm water of about 30 ° C to 40 ° C.
- the antifreeze of the present invention has a low freezing point, so it has a great snow melting effect, and is used as a snow melting agent. It can be preferably used.
- the antifreeze of the present invention can maintain a freezing point much lower than 0 ° C. even when the concentration of the solution A is low. Therefore, the snow melting effect can be maintained for a long time.
- the antifreeze of the present invention has a feature that the freezing point is lowered when the ratio of the solution A containing glycerin is large.
- An antifreeze containing 70%, preferably 75%, and especially 80% of solution A has a unique feature having a freezing point of minus 100 ° C or less. Therefore, when such an antifreeze solution containing a large amount of the solution A is sprayed as a snow melting agent, a snow melting effect can be obtained in a short time, and an excellent snow melting effect can be maintained for a long time even when diluted with molten water.
- the antifreeze of the present invention can also reduce snow accumulation on the roof by spraying it as a snow-melting agent on the roof of a house during snowfall.
- FIGS. 1 (a), (b) and (c) allow the present invention to be used.
- Antifreeze can be sprayed on the roof.
- 2 is a tank for storing the antifreeze of the present invention
- 4 is a pressure pump for pumping the antifreeze up to the roof
- 6 is a spray pump for spraying the antifreeze of the present invention on the roof.
- Perforated pipe Perforated pipe.
- the holes 10 of the perforated pipe 6 are installed on both sides of the roof.
- 12 is a fixture for attaching a perforated pipe to the roof.
- the arrows indicate the flow direction of the antifreeze.
- Solution B which can be used in the above antifreeze, is included as an essential component that plays a role in preventing the antifreeze of the present invention.
- the components of the protective agent of the present invention may be the same as those of the above-mentioned liquid B component.
- the above liquid B can be used alone as a protective agent.
- the water-proofing agent of the present invention contains water, a dicarboxylic acid, and an aqueous solution of a metal hydroxide as essential components, and further comprises a triazole, a chelating agent, a saturated fatty acid, and an unsaturated fatty acid. It may contain one or more substances of choice.
- dicarboxylic acids triazoles, saturated fatty acids, chelating agents, unsaturated fatty acids, and metal hydroxides, those similar to those exemplified in the above antifreeze solution can be used.
- component ratios exemplified for the antifreeze of the present invention can be used for these component ratios.
- antioxidant of the present invention As an embodiment of the antioxidant of the present invention,
- the protective agent of the present invention having such a composition does not contain substances considered to be bad for the environment and has a protective effect and a cleaning effect.
- Ethylenediamine tetraacetic acid complex 0.5% to 20.0% by weight, preferably 1.0% to 10.0% by weight
- Dodecane diacid 0.1% to 10.0% by weight, preferably 0.5% to 5.0% by weight,
- Tolyltriazole 0.1 weight 0 /. ⁇ 10.0 wt 0/0, preferably from 0.5% to 5. 0 wt%,
- Caprylic acid 1.0% to 25.0% by weight, preferably 2.0% to 20.0% by weight,
- Orein acid 1.0% to 25 0 weight 0/0, preferably from 2.0% to 20.0% by weight,
- Metal hydroxide aqueous solution 0.01% to 20.0% by weight, preferably 1.0% to 15.0% by weight
- Water 30.0% to 95.0% by weight, preferably 30.0% to 90.0% by weight. 0% by weight is preferred.
- Another embodiment of the antioxidant of the present invention may further include dipropylenedaricol.
- dipropylene glycol When dipropylene glycol is added as a component to the anti-oxidant of the present invention, the pH value is stable, for example, even when used in a high-temperature environment in the metalworking step, and is thus preferable.
- Dipropylene glycol may preferably be contained in the protective agent of the present invention in an amount of 0.01% by weight to 10.0% by weight.
- the protective agent of the present invention may further contain a polyhydric phenol.
- the polyvalent phenols may be one or more substances selected from flavonoids, coumarins, phenylpropanoids, and tannins.
- the polyhydric phenols may be preferably contained in the components of the protective agent of the present invention at 1 ⁇ 10 16 % by weight to 1% by weight.
- Flavonoids include, for example, baicalin, chrysin, myricetin, dihydromyricetin, morin, naringin, taercetin, quenoresitrin, noretin, and gongonin.
- Coumarins include coumarin, esculetin, scopoletin, and scopoletin.
- Phenylpropanoids include caffeic acid, chlorogenic acid, cinnamic acid and coumaric acid, and tannins include epigallocatechin, gallic acid, tannin and the like.
- the above-described heat-insulating agent of the present invention is also used for storage of metal working liquids or metal parts used in the processing steps of various metals such as copper, aluminum, iron, steel or alloys thereof, cooling liquids for radiators, and the like. Can be done.
- EDTA ⁇ Na salt (trade name: Krewat, manufactured by Teikoku Chemical Industry Co., Ltd.) 50 g, dodecane diacid 14.5 g, tolyltriazole (trade name: TT1-1330 Johoku Chemical Co., Ltd.) 12.5 g, 130 g of caprylic acid, 125 g of oleic acid, 450 g of water, aqueous sodium hydroxide solution (33% dilution, pH 1 to 13) 150 g, polyalkylene glycol (product) Prepare and mix 68 g of name Dishome LE-120R). This is B-1 solution.
- a (glycerin 100% by weight) solution The weight ratio of solution B—1 prepared in Preparation Example 1 above was 5:95, 10:90, 15:85, 20:80, 25:75, 30:70, Mixing was carried out at 50:50 and 75:25 to obtain Example 1, 1-1, 1-2, 1-3, 114, 1-1 5, 1-6, 117, 1-8.
- the liquid thus adjusted was measured with a differential scanning calorimeter (manufactured by Seiko Instruments, scanning speed: 5 ° C / min) to obtain a solidification point.
- Table 1 shows the mixing ratios of Solution A and Solution B and the solidification temperature.
- the antifreeze stock solution (1) prepared in Preparation Example 2 was diluted with purified water, and the coagulation temperature of the solution was measured.
- the antifreeze stock solution (1) and the weight ratio of water adjusted in Adjustment Example 2 were mixed at a ratio of 100: 0, 50:50, 30:70, 20:80, and Examples 2-1, 2, 2 and 2 were prepared. — 3, 2 — 4.
- the coagulation temperature of each of the prepared liquids was measured.
- Table 2 shows the mixing ratio, pH, and solidification temperature. [Table 2]
- the antifreeze stock solution (1) prepared in Preparation Example 2 was diluted with distilled water to 5%, 10%, 15%, 15%, 20%, 25%, and 30%, respectively.
- Using a freezer (Hoshizaki HPFDOMFT 3) the state after standing at 15 ° C for 6 hours was observed. The results are shown in Table 3 by visual observation of each solution.
- the antifreeze liquid of the present invention prepared by adjusting each metal piece of iron, iron, copper alloy, aluminum 4000, aluminum 500, aluminum 600, and aluminum 700 It was immersed in a solution (pH 9.0-9.5) diluted with water at 50 ° C. for 48 hours. ⁇ No iron or iron was generated. Copper alloy and aluminum pieces did not discolor.
- the antifreeze stock solution (2) of Preparation Example 3 was diluted with 30% by weight and 70% by weight of distilled water.
- the metal pieces of aluminum 7000, aluminum alloy for engine, copper, brass, iron, and lead solder are immersed in this solution, and heated at 60.0 ° C (Toyo Seisakusho Co., Ltd .: CI— 410) and left for 420 hours.
- Table 4 shows the results. Those that have changed are described, and those that do not change are marked as ⁇ .
- Table 4 shows the results of immersing each metal piece of aluminum No. 7000, copper, brass, and iron in a commercially available antifreeze (manufactured by Nisseki Mitsubishi Corp .: coolant replenisher green) under the same conditions as in Example 5. .
- Antifreeze according to the present invention aluminum 7 000 No., copper, for brass, whereas commercial non Koeki is discolored, no change was observed. ⁇ No change was observed for iron in comparison with commercially available antifreeze.
- the diluted antifreeze solution (2) prepared in the above Preparation Example 3 and distilled water were diluted at a weight ratio of 50:50 and 30:70 by weight. Further, glycerin 90 wt% beta liquid 10 weight 0/0 in mixed liquid of distilled water in a weight ratio of 50: liquid was adjusted at 50 ratio. Examples 6-1, 1, 6-2, 6-3, respectively.
- Table 5 shows the mixing ratio, dilution ratio, and visual observation of each sample.
- EDTA Na salt (trade name: Crewat, manufactured by Teikoku Chemical Industries Co., Ltd.) 30 g , dodecanoic acid 10 "tolyltriazole (trade name: TT-130, manufactured by Johoku Chemical Co., Ltd.) 7 g, force prillic acid
- Ropi render Recall 9 5 wt%, and glycerin 1 weight 0 / o, it was prepared in Preparation Example 4 B- 2 solution 4 wt 0/0.
- Example F 21.0360 hours ⁇ ⁇ .0 o ⁇ ⁇
- the Corolla (manufactured by Toyota Motor Corporation) was driven at a stable speed of 50 km / h and suddenly braked. The distance between the position where the brake was applied and the position where the brake was stopped was measured (weather: sunny, temperature: 25 ° C).
- the road surface is asphalt pavement. Diluents of various dilution rates of the antifreeze stock solution (4) of the present invention prepared in Preparation Example 6 were sprayed on the road surface. A test was conducted with a vehicle running on an asphalt road under the following conditions.
- Example 8-1 Road surface running without antifreeze
- Example 8-2 Road running on which a three-fold diluted antifreeze solution of the present invention was sprayed,
- Example 8-3 Road running with a 5-fold dilution applied
- Example 8-4 Road surface running with a 10-fold dilution
- Example 8-5 Road surface running with tap water
- Example 8-6 Running on a road surface sprayed with a three-fold diluted antifreeze solution of the present invention, using a vehicle in which sand is adhered to tires on one surface,
- Table 7 shows that the state where the antifreeze of the present invention was sprayed was the same as the state where tap water was sprayed regardless of the dilution rate of the antifreeze. In other words, there is no change from the slip condition against road surface wetting due to normal natural water.
- EDTA ⁇ Na salt (trade name: Krewat, manufactured by Teikoku Chemical Industry Co., Ltd.) 20 g, dode tannic acid 14 g, tolyltriazole (trade name: TT-1 130, manufactured by Johoku Chemical Co., Ltd.) 10 g, 75 g of caprylic acid, 75 g of oleic acid, 130 g of aqueous potassium hydroxide solution (diluted 33%, pH 11 to 13) 130 g, 40 g of dipropylenedaricol, aqueous chlorogenic acid ( Chlorogenic acid (manufactured by Wako Pharmaceutical Co., Ltd.) 10 g of water and 626 g of water are prepared and mixed by diluting lg into 4 liters of distilled water. Use this as B-3 solution.
- Krewat manufactured by Teikoku Chemical Industry Co., Ltd.
- tolyltriazole (trade name: TT-1 130, manufactured by Johoku Chemical Co., Ltd.) 10 g, 75 g
- the antifreeze according to the present invention is an antifreeze of a new component.
- the antifreeze does not use harmful substances specified by the Environment Agency, such as ethylene glycol, and contains water as a main component.
- the specified components it is possible for the stock solution to be liquid without freezing even under conditions at normal pressure of less than 120 ° C and even less than _50 ° C.
- it can be diluted with water according to the required application of antifreeze effect and anti-dust effect, it is excellent in workability and environmental friendliness, and wastewater does not contain substances that adversely affect the environment. Processing is simple.
- the antifreeze of the present invention can be used as cooling water for a radiator attached to an engine, especially in a cold region, and ice cooling for cooling floors and buildings that can reduce the burden of electric energy. It can also be used for mechanisms, and can also be used for applications that use any antifreeze, such as refrigeration agents for food and medicine. Further, by adding a certain amount of water glass and spraying a suitably diluted liquid on the road surface, it is possible to prevent the water on the road surface from freezing.
- It can be used as a cooling medium for cooling systems for engines of automobiles, aircraft, etc., as a heating medium for floor heating, ice regenerators, etc., and for all uses such as prevention of freezing on roads.
- it has a protective effect and a cleaning effect. After use, the effluent can be drained by normal treatment without adversely affecting the environment.
- the anti-freezing agent of the present invention can be used as an essential component of the antifreeze solution of the present invention, and can also be used alone as a metal working solution or a metal preservation solution, and has an excellent anti-freezing effect. .
- the antifouling agent of the present invention is excellent in workability and environmental properties, and the waste liquid does not contain any substance which has an adverse effect on the environment.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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US10/543,845 US7141102B2 (en) | 2003-01-29 | 2004-01-29 | Antifreeze solution and rust inhibitor added thereto |
JP2005502670A JPWO2004074397A1 (ja) | 2003-01-29 | 2004-01-29 | 不凍液、及びそれに用いうる防錆剤 |
Applications Claiming Priority (4)
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JP2003020092 | 2003-01-29 | ||
JP2003-020092 | 2003-01-29 | ||
JP2003-133470 | 2003-05-12 | ||
JP2003133470 | 2003-05-12 |
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WO2004074397A1 true WO2004074397A1 (ja) | 2004-09-02 |
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PCT/JP2004/000875 WO2004074397A1 (ja) | 2003-01-29 | 2004-01-29 | 不凍液、及びそれに用いうる防錆剤 |
Country Status (4)
Country | Link |
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US (1) | US7141102B2 (ja) |
JP (1) | JPWO2004074397A1 (ja) |
KR (1) | KR20060030011A (ja) |
WO (1) | WO2004074397A1 (ja) |
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Also Published As
Publication number | Publication date |
---|---|
JPWO2004074397A1 (ja) | 2006-06-01 |
KR20060030011A (ko) | 2006-04-07 |
US7141102B2 (en) | 2006-11-28 |
US20060038159A1 (en) | 2006-02-23 |
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