JPH10102033A - Liquid aluminum soap composition, gelling agent containing the same and gelation using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a liquid aluminum soap composition for gelling agents that can be dispersed in different organic solvents homogeneously in a very short time, and very stably kept for a long time for gelling agents by the use of liquid paraffin and other organic solvents. SOLUTION: This liquid aluminum soap composition comprises (A) liquid paraffin as a main component of (B) an organic solvent mixture which preferably contains, in addition to the liquid paraffin, at least one solvent selected from other hydrocarbon-based solvents, for example, naphthenic 245-185 deg.C fractions, and (C) aluminum 2-ethylhexanoate dissolved into the solvent, preferably in the condition that component C is used in a quantity of 38-40wt.%, and that the mixing ratio of organic solvent used together with component A as a mixture to component A is (1-20 pts.wt.):(99-80 pts.wt.).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an aluminum 2-ethylhexanoate solution containing aluminum 2-ethylhexanoate in a stable and high concentration. In particular, the present invention relates to a liquid aluminum soap composition containing aluminum 2-ethylhexanoate having excellent gelling ability in a stable and high concentration. Further, the present invention relates to a method for gelling various organic liquids including mineral oils using the liquid aluminum soap composition.

[0002]

2. Description of the Related Art Aluminum 2-ethylhexanoate is
It is known that a mineral oil or a general organic solvent, for example, benzene, xylene, etc., has a property of gelling these organic solvents firmly only by adding a small amount of several percent to ten and several percent, For example, mineral spirit 10
When 10 parts by weight is added to 0 parts by weight, a strong gel is formed at room temperature. For benzene, xylene, etc., only 3 to 5 parts by weight of 100 parts by weight is added to room temperature. Since these solvents form a gel, they are used in fields where it is necessary to solidify these organic solvents.

[0003] Aluminum 2-ethylhexanoate is a solid substance that is insoluble in water. In addition, since it acts as a gelling agent for ordinary organic solvent substances as described above, it is difficult to use aluminum 2-ethylhexanoate as a stable and high-concentration solution.
Aluminum ethylhexanoate is generally used in the form of powdered aluminum 2-ethylhexanoate as it is or as a dispersion obtained by dispersing it in an appropriate dispersion medium.

[0004] However, when aluminum 2-ethylhexanoate is used as a coarse particle powder, a part of the dispersed powder is in an undispersed state before it is uniformly dispersed in a mineral oil or an organic solvent to be gelled. Therefore, aluminum 2-ethylhexanoate must be used as a fine powder having a small particle size, because it causes partial gelation in which the other aluminum 2-ethylhexanoate powder is gelled so as to enclose the powder.

[0005] However, aluminum 2-ethylhexanoate itself has a property of being easily charged with static electricity, and the property becomes more remarkable as the powder becomes finer. Therefore, it is necessary to take thorough measures to prevent contamination of the work environment and the operators, which requires a great deal of expense. Further, when aluminum 2-ethylhexanoate is used as the gelling agent, the dispersion liquid is usually stirred and dispersed in advance, except that the amount of aluminum 2-ethylhexanoate used as the solvent in the formulation is sufficient to disperse it. It is necessary to carry out a complicated operation of preparing a solution, adding the solution little by little to the solution to be gelled, and in some cases, adding while heating and stirring and mixing.

[0006]

The present invention can be uniformly dispersed in various organic liquids such as mineral oil in a very short time and can be stably stored for a long period of time. It is an object of the present invention to provide an aluminum 2-ethylhexanoate-containing gelling agent in a proper solution state. In particular, an object of the present invention is to provide a gelling agent consisting of a stable solution containing aluminum 2-ethylhexanoate at a high concentration and a gelling method using the gelling agent.

[0007]

The present invention, which can solve the above-mentioned problems, relates to a liquid aluminum soap composition obtained by dissolving aluminum 2-ethylhexanoate in an organic solvent containing liquid paraffin as a main component. It is.

Further, the present invention provides a liquid aluminum soap composition according to the present invention, wherein a mixed solution of liquid paraffin and another organic solvent, for example, a hydrocarbon solvent such as naphthenes, is used as the organic solvent. It is about things. The present invention also relates to a gelling agent comprising the above liquid aluminum soap composition.

[0009] The present invention also relates to a method for gelling mineral oil, comprising adding and mixing the above liquid aluminum soap composition to mineral oil. Further, the present invention, the above-mentioned liquid aluminum soap composition is added and mixed with mineral oil, animal and vegetable oil or other various organic liquids, and further, amine,
The present invention relates to a method for gelling mineral oil, animal and vegetable oil or other various organic liquids, characterized by adding at least one gelling accelerator selected from alcohols, phenols and higher fatty acids.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION The purity and source of aluminum 2-ethylhexanoate used in the liquid aluminum soap composition of the present invention are not particularly limited, and commercially available ones can be used. Moreover, you may manufacture and use by any method known as a manufacturing method of aluminum soap.

The amount of aluminum 2-ethylhexanoate used in the liquid aluminum soap composition is not particularly limited as long as it can be dissolved in liquid paraffin or a mixed solvent of liquid paraffin and another solvent. When the solvent is liquid paraffin alone, it is possible to maintain a stable state of the liquid composition even with the use amount of usually 38 to 40% by weight. However, when other solvents are used in combination, usually 3
It is used in an amount of about 0 to 32% by weight.

The liquid paraffin used in the liquid aluminum soap composition of the present invention is a highly purified dewaxed oil having a low viscosity, and is usually used in cosmetics, pharmaceuticals, food processing, lubricants for synthetic resins, fiber oils and the like. Any colorless, tasteless, or odorless lubricant used as a lubricant for precision machinery can be used. It is preferable that the liquid paraffin itself is used alone as a solvent. However, other solvents can be used in combination as long as the properties of liquid paraffin are not impaired.

[0013] As a solvent for the liquid aluminum soap composition of the present invention, an organic solvent that can be used by mixing with liquid paraffin is as follows: when aluminum 2-ethylhexanoate is dissolved as a mixed solvent with liquid paraffin, It does not undergo phase separation (syneresis) with liquid paraffin. Examples of organic solvents that can be used include, for example, 245 to
Naphthene fraction at 185 ° C (Nippon Oil Co., Ltd.), first boiling point 25
Examples thereof include petroleum fractions such as naphthenes (manufactured by Nippon Oil Co., Ltd.) and synthetic isoparaffinic hydrocarbons (manufactured by Exxon) having a fraction of 5 ° C., 50% 267 ° C. and a dry point of 282 ° C.

The mixing ratio of the organic solvents used in the liquid paraffin to the liquid paraffin is 1 to 20 parts by weight to 99 parts by weight.
It is in the range of ~ 80 parts by weight. As described above, since these organic solvents used in combination with liquid paraffin are not essential, there is no hindrance in their use in small amounts. However, if the amount used exceeds 20% by weight of the total solvent, the liquid composition in which aluminum 2-ethylhexanoate is dissolved tends to separate into layers, which is not preferable.

[0015] Examples of the gelling accelerator which can be used in the above-mentioned gelling method of the present invention include gelling accelerators comprising amines, alcohols, phenols and higher fatty acids. By using these accelerators, the gelation time can be arbitrarily controlled. Ethanol and oleic acid are particularly preferred gelling accelerators.

Examples of the organic liquid which can be gelled with the liquid aluminum soap composition of the present invention include ordinary mineral oils such as hydrocarbons and terpenes contained in citrus fruits. Animal and vegetable oils can also be used as a liquid capable of gelling. In this case, it is preferable to use a suitable gelling accelerator such as oleic acid. As a liquid to be gelled, use odorless mineral oil or the like to form a liquid mixture with citrus fruits, for example, with aromatic limonene, etc. Perfumes can be manufactured. Perfume components such as these citrus oils generally evaporate more when a heating step is added, and therefore, when heating is required for a gelling step for producing a solid perfume,
It is necessary to add in anticipation of the transpiration.
In the case of the gelling agent of the present invention, since gelation can be achieved at room temperature, there is an advantage that loss of expensive perfume components is not involved.

Further, the gelling agent of the present invention can be easily added to a gelling organic liquid in a container having a narrow mouth into which powder cannot be charged, and can be added to a gelling organic liquid. It can also be used for applications in which a predetermined portion is sealed or sealed by gelling after adding and filling the portion to be sealed or sealed. For use in such applications, the gelling agent of the present invention is mixed and filled into the liquid to be gelled, and then gelled by adding a gelling accelerator such as oleic acid or ethanol at an appropriate time. This is also an effective method.

[0018]

EXAMPLES Hereinafter, the present invention will be described more specifically based on examples, but the present invention is not limited to these examples. Example 1 In order to clarify the suitability of liquid paraffin as a solvent for aluminum 2-ethylhexanoate, the addition of aluminum 2-ethylhexanoate was continued while stirring at room temperature in the following various solvents. Stop adding at this point and add 2
-The amount of aluminum ethylhexanoate dispersed and dissolved was measured, and the state at that time was observed. The results are shown in Table 1. In addition, the weight% of aluminum 2-ethylhexanoate
Indicates the addition ratio in the entire composition.

[0019]

[Table 1] The results in Table 1 show that liquid paraffin as a solvent for aluminum 2-ethylhexanoate gives a stable homogeneous solution over a long period of time.

Example 2 In order to clarify the appropriate amount of other solvents that can be used by adding to liquid paraffin, various solvents described in Table 2 were mixed with liquid paraffin in the respective amounts. The solution was continuously stirred, and the state of each solution was observed. The results are shown in Tables 2 to 5. The amount of the solvent to be mixed is represented by a percentage by weight of the total solvent used. The amount of aluminum 2-ethylhexanoate used in all cases is 30% by weight in the total composition.

[0021]

[Table 2]

[0022]

[Table 3]

[0023]

[Table 4]

[0024]

[Table 5]

The results in Tables 2 to 5 show that liquid paraffin alone dissolves aluminum 2-ethylhexanoate to form a stable homogeneous solution over a long period of time. In this case, it is shown that a stable solution state can be maintained for a certain period of time if the use is up to about 5 to 20% by weight.

Example 3 A liquid paraffin solution containing 33% by weight of aluminum 2-ethylhexanoate was prepared, stirred for 1 hour while heating to a temperature of about 80 ° C., and then left at room temperature for 24 hours to obtain a solution. Was observed.
The solution is a smooth, fluid, homogeneous solution with a viscosity of 2
It was 3,400 cps at 0 ° C. This solution is 2,16
Even after 0 hour, no layer separation was observed, and a uniform solution state was maintained.

Example 4 A liquid paraffin solution containing 38% by weight of aluminum 2-ethylhexanoate was prepared and dissolved while stirring at a temperature of about 80 ° C.
The solution was allowed to stand at room temperature for 24 hours to observe the state of the solution. The solution was a smooth, fluid, homogeneous solution having a viscosity of 5,400 cps at 20 ° C. This solution did not undergo layer separation even after 2,160 hours had elapsed, and a uniform solution state was maintained. From the results of Examples 3 and 4, it can be seen that a solution containing up to about 38% by weight of aluminum 2-ethylhexanoate can be prepared with liquid paraffin alone.

Example 5 The following gelling test was carried out using the gelling agent composition of the present invention. 9 parts by weight of the gelled composition prepared in Example 3 was added to 100 parts by weight of benzene,
Gently agitated to obtain a homogeneous solution. This benzene solution has a viscosity of 56,000 cps after standing at room temperature for 24 hours.
Met. When a part of the benzene solution was heated to 40 to 50 ° C., the viscosity became 100,000 cps or more at 20 ° C. Separately, 100 parts by weight of the above benzene solution was added, 0.43 g of ethanol was added as an accelerator at room temperature, and the mixture was allowed to stand at room temperature for 24 hours. As a result, the viscosity of the solution became 100,000 cps at 20 ° C.

Example 6 9 parts by weight of the gelled composition prepared in Example 3 was added to 100 parts by weight of mineral spirit and stirred gently to obtain a homogeneous solution. When a part of the mineral spirit solution is heated to 50 to 75 ° C., the viscosity becomes 2
It became 100,000 or more at 0 ° C. Separately, 100 parts by weight of the above mineral spirit solution was taken, 1.0 g of ethanol was added as an accelerator at room temperature, and the mixture was allowed to stand at room temperature for another 24 hours. As a result, the viscosity of the solution was 2,600 cps at 20 ° C.
Met.

Example 7: 48 parts by weight of limonene and an aliphatic saturated hydrocarbon oil (initial boiling point: 156 ° C., 50%;
(61 ° C., dry point: 175 ° C., Exxon) 9 parts by weight of the gelled composition of Example 3 was added to 58 parts by weight of the mixed solution, mixed and stirred, and heated to 60 to 70 ° C., at 20 ° C. 100,
A transparent hard gel having a viscosity of 000 cps or more and usable as a solid fragrance was obtained.

Example 8: 48 parts by weight of limonene and an aliphatic saturated hydrocarbon oil (initial boiling point: 156 ° C., 50%;
(61 ° C., dry point: 175 ° C., Exxon Co.) 21 parts by weight of the gelled composition of Example 3 were added to 58 parts by weight of the mixture, mixed and stirred, and 0.6 part by weight of ethanol was added. After stirring and mixing, a clear gel was formed after 2 hours 30 minutes. The viscosity at 20 ° C. was 100,000 cps or more.

Example 9 7 parts by weight of the gelled composition prepared in Example 4 were added to 100 parts by weight of benzene, and a homogeneous solution was obtained immediately after gently stirring. This benzene solution had a viscosity of 56,000 after standing at room temperature for 24 hours.
cps. A part of the above benzene solution was added to 40 to 50
When heated to 20 ° C, the viscosity is 100,000 cps at 20 ° C
That's all. Separately, 100 parts by weight of the above benzene solution was added, 0.43 g of ethanol was added as an accelerator at room temperature, and the mixture was allowed to stand at room temperature for 24 hours. As a result, the viscosity of the solution became 100,000 cps at 20 ° C.

Example 10 To 100 parts by weight of mineral spirit, 7 parts by weight of the gelled composition prepared in Example 4 was added and lightly stirred to obtain a homogeneous solution. When a part of the mineral spirit solution is heated to 50 to 75 ° C., the viscosity becomes 2
It became 100,000 cps or more at 0 ° C. Separately, take 100 parts by weight of the above mineral spirit solution, add 1.0 g of ethanol as an accelerator at room temperature, and further add 2 g at room temperature.
After standing for 4 hours, the solution had a viscosity of 2,600 at 20 ° C.
cps.

Example 11: 48 parts by weight of limonene and an aliphatic saturated hydrocarbon oil (initial boiling point: 156 ° C., 50% 161)
C., dry point 175.degree. C. (Exxon Co.) 18 parts by weight of the gelled composition of Example 4 were added to 58 parts by weight of the mixed solution, mixed and stirred, and heated to 60 to 70.degree.
A colorless, transparent, hard gel having a viscosity of 00 cps or more was obtained.

Example 12: 48 parts by weight of limonene and an aliphatic saturated hydrocarbon oil (initial boiling point: 156 ° C., 50% 161)
C., dry point: 175.degree. C. (Exxon Co.) 18 parts by weight of the gelled composition of Example 4 were added to 58 parts by weight of a mixed solution, followed by stirring and dissolving. Then, 0.6 parts by weight of ethanol was added and stirred and mixed. Then, when allowed to stand, a colorless and transparent gel was formed after 2 hours and 30 minutes. The viscosity at 20 ° C is 100,000 cp
s or more.

Example 13: A gelling agent comprising the liquid aluminum soap composition of the present invention and a conventionally used aluminum 2-ethylhexanoate powder were gelled using a higher fatty acid as a gelling accelerator. Test comparisons were made. Table 6 shows the results.

[0037]

[Table 6] From the results in Table 6, it can be seen that the liquid aluminum soap composition of the present invention is a superior gelling agent as compared with the conventional aluminum gel powder of 2-ethylhexanoate which is a gelling agent.

Example 14 Using oleic acid or ethanol as a curing accelerator and those described in Example 3 as gelling agents, the ability to gel to various solvents was examined. %
Is% by weight and temperature is room temperature. Table 7 shows the results.

[Table 7]

Example 15: Using oleic acid or ethanol as a curing accelerator and the gelling agent described in Example 3 to determine the gelling ability with various solvents. %
Is% by weight and temperature is room temperature. Mixing was performed by adding a gelling agent to a solvent and then adding an additive (gelling accelerator). The results are shown in Tables 8 to 10.

[Table 8]

[0040]

[Table 9]

[0041]

[Table 10]

[0042]

As described above, liquid paraffin can dissolve aluminum 2-ethylhexanoate, which is an excellent gelling agent, at a high concentration and can maintain a stable solution state for a long period of time. It is capable of forming a solution of a thick liquid aluminum soap composition. The liquid aluminum soap composition is rapidly and uniformly dispersed in a liquid to be gelled such as mineral oil, and thus has an effect of uniformly gelling the liquid to be gelled. In addition, the liquid aluminum soap composition moderately suppresses the gelling ability of aluminum 2-ethylhexanoate as a powder at room temperature, so that heating and gelation can be performed at a necessary place and when necessary. A gelation reaction can be caused by the addition of a (curing) accelerator, and has an effect of improving workability.

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Kuniharu Kimoto, Inventor 5-17 Hanahata, Adachi-ku, Tokyo 45-204 Hanahata Danchi

Claims (7)

[Claims] 1. A liquid aluminum soap composition obtained by dissolving aluminum 2-ethylhexanoate in an organic solvent containing liquid paraffin as a main component. 2. The liquid aluminum soap composition according to claim 1, wherein the organic solvent is a mixed solution containing at least one selected from other hydrocarbon solvents in addition to liquid paraffin. Stuff. 3. A gelling agent comprising the liquid aluminum soap composition according to claim 1 or 2. 4. A method for gelling organic liquids, comprising adding a gelling agent comprising the liquid aluminum soap composition according to claim 3 to a mineral oil and mixing. 5. A gelling agent comprising the liquid aluminum soap composition according to claim 3 is added to and mixed with an organic liquid, and then at least one kind of gelling selected from amines, alcohols, phenols and higher fatty acids. A method for gelling organic liquids, comprising adding an accelerator. 6. The method for gelling an organic liquid according to claim 4, wherein the organic liquid is a mineral oil. 7. The method for gelling an organic liquid according to claim 5, wherein the gelation accelerator is oleic acid.