JPH10140131A - Liquid composition having controllable viscosity - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a viscosity controlling agent which can control the viscosity of a liquid composition according to the different environmental conditions or the condition of use and to obtain such a liquid composition. SOLUTION: This composition contains a compound having two or three or more coordinate-bond-forming moieties and metal ions each of which can form a coordinate bond with each of the above moieties. It increases in viscosity when it takes a structure of a polymer complex formed as a result of coordinate bonds of the moieties of the compound with the metal ions, whereas it lowers in viscosity when the formed polymer complex structure is disintegrated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a means for controlling the viscosity of a liquid, and more particularly to a composition liquid capable of controlling the viscosity by forming a coordination bond between two contained components (elements).

[0002]

2. Description of the Related Art Controlling the viscosity of liquids (including various solutions and dispersions; the same applies hereinafter) is used for manufacturing various objects such as paints, foods, cosmetics, drilling fluids, plastics, and the like. Of particular importance in processing steps. For this reason, various viscosity control agents are used depending on the above-mentioned respective objects and applications. For example, as a viscosity control agent for paints and the like, those having a polyacrylic acid-based polymer compound as an active ingredient are generally used, and as a viscosity control agent for foods and the like, a polymer compound such as xanthan is used as an active ingredient. Things are used. Therefore, according to these conventional viscosity control agents and their composition liquids, the viscosity of the liquid (paint, etc.) as an object is defined in accordance with the viscosity characteristics of the individual active ingredients (polymer compounds). Become.

[0003]

By the way, even if the same liquid is used, the required viscosity of the liquid may be different depending on the use condition. For example, when a paint is spray-coated on an object, in the step of spraying the paint in a mist state, the viscosity of the paint is required to be low in order to form a good aerosol. On the other hand, after being sprayed on an object to be coated, the paint is required to have a high viscosity enough to prevent the paint from dripping.

However, as described above, in the conventional viscosity controlling agent, the range of change in viscosity that can be imparted to a liquid as an object by a polymer compound such as polyacrylate is defined in a narrow range, and therefore, a paint or the like is used. It has been difficult to sufficiently vary the viscosity of the liquid according to different environmental conditions and its use. The present invention fundamentally solves the problems of the above-mentioned conventional viscosity control agents, and an object thereof is to control the viscosity of various composition liquids corresponding to different environmental conditions or use conditions. It is to provide a viscosity control agent to be obtained and such a composition liquid.

[0005]

In order to solve the above problems, the present invention comprises the following components: a). A compound having two or more coordination bond-forming moieties (hereinafter, simply referred to as “the present compound”); and b). A polymer that contains a metal ion capable of coordinating with a plurality of the above-mentioned coordination bond forming moieties (hereinafter, simply referred to as “the present metal ion”); A viscosity-controllable composition liquid (hereinafter referred to as a “composition liquid of the present invention”), characterized in that the viscosity increases with the formation of the type complex structure and the viscosity decreases with the collapse of the formed polymer type complex structure. .)I will provide a.

As described above, since the composition of the present invention contains the present compound and the present metal ion as components, the viscosity can be varied depending on the presence or absence of a coordination bond between the two. At this time, a compound containing the present compound and the present metal ion in equivalent amounts in a chemical equivalent is preferable. That is, as schematically shown in FIG. 1, a state in which a coordination bond is hardly formed between the coordination bond forming part of the present compound and the present metal ion in the composition liquid of the present invention (the left side of FIG. 1) In FIG. 2), these components are present independently, and the viscosity of the composition liquid is relatively low. On the other hand, each coordination bond forming part in the present compound in the composition liquid of the present invention and the present metal ion are successively bonded by a coordination bond to form an organized chain or network-like high molecular complex structure. In the formed state (the right figure in FIG. 1), the viscosity of the composition liquid is increased by the formed polymer type complex structure. Since the above-mentioned polymer type complex structure is formed by coordination bonds, the composition liquid is subjected to shear stress or the like (shear stress such as vibration and flow, heating,
It refers to applying ultrasonic waves. same as below. ) Can break the coordination bond to temporarily disrupt the polymer-type complex structure, and when the shear stress or the like is removed, the coordination bond recovers again. Then, the polymer-type complex structure is regenerated (see the arrow in the center of FIG. 1).

Therefore, in the composition liquid of the present invention, the viscosity can be increased by forming the above-mentioned polymer type complex structure, and the increased viscosity can be temporarily reduced by applying a shear stress or the like. .

In a preferred composition liquid of the present invention, the compound has a spacer portion having a molecular chain structure.
One or three or more coordination bond-forming portions are bonded to the spacer portion. That is, in the composition liquid of the present embodiment, the coordination bond forming portions of the present compound are separated from each other by the interposition of the spacer portion. Therefore, it is easy to form a polymer type complex structure having the present metal ion as a nucleus.

A more preferred composition liquid of the present invention has an acetylene bond or an aromatic ring in the main chain of the spacer portion. In the composition liquid of the present embodiment, the spacer portion of the present compound has a so-called rigid structure having a low degree of freedom, so that a plurality of coordination bond forming portions present in one molecule of the present compound can be easily separated from a separate present metal ion. Can be coordinated to For this reason, the formation of the polymer type complex structure having the present metal ion as a nucleus can be promptly achieved. Further, according to the composition liquid of the present embodiment, the viscosity of the composition liquid in a state where the polymer type complex structure is formed, and the composition liquid in a state where the polymer type complex structure is collapsed by applying stress such as shearing. The difference between the viscosity and the viscosity can be increased.

[0010] Further, another preferred composition liquid of the present invention is the composition liquid of the present invention or the composition liquid of each of the above-mentioned embodiments.
The present metal ion is a metal ion selected from the group consisting of iron, copper, nickel, zinc, cobalt and chromium. Since these metal ions can easily coordinate with the present compound, the formation of the above-mentioned polymer type complex structure is easy.

Another aspect of the present invention for solving the above-mentioned conventional problems includes the following components: a). A compound having two or more coordination bond-forming moieties (ie, the present compound); and b). A viscosity control agent (hereinafter referred to as "viscosity control agent of the present invention") containing a metal ion capable of coordinating with a plurality of the coordination bond forming moieties (namely, the present metal ion) or a salt capable of generating the metal ion; .). According to the viscosity control agent of the present invention, it is possible to realize both high viscosity in a state where the above-mentioned polymer type complex structure is formed and low viscosity in a state where a shear stress or the like is applied in various composition liquids. Can be. That is, according to the viscosity control agent of the present invention, the viscosity can be increased by forming the polymer type complex structure, and the increased viscosity can be temporarily reduced by applying a shear stress or the like. The composition liquid can be provided. At this time, a compound containing the present compound and the present metal ion in equivalent amounts in a chemical equivalent is preferable.

In a preferred viscosity control agent of the present invention, the present compound has a spacer portion having a molecular chain structure, and the two or more coordination bond forming portions are bonded to the spacer portion. It is characterized by the following. According to the viscosity controlling agent of the present embodiment, each coordination bond forming portion of the present compound is separated from each other by the interposition of the spacer portion, thereby forming a polymer type complex structure having the present metal ion as a nucleus. Can easily provide a composition liquid.

A further preferred viscosity control agent of the present invention has an acetylene bond or an aromatic ring in the main chain of the spacer portion. According to the viscosity controlling agent of this embodiment, the spacer portion of the present compound has a so-called rigid structure having a low degree of freedom, so that a plurality of coordination bond forming portions present in one molecule of the present compound are each formed of a separate It is possible to provide a composition liquid which can easily form a polymer type complex structure having the present metal ion as a nucleus by being easily coordinated with a metal ion. Further, in the composition liquid provided by the viscosity controlling agent of the present embodiment, the viscosity of the composition liquid in a state where the polymer type complex structure is formed, and the polymer type complex structure is collapsed by applying stress such as shearing. The difference from the viscosity of the composition liquid in the state in which it has been made may increase.

Another preferred viscosity control agent of the present invention is the viscosity control agent of the present invention or the viscosity control agent of each of the above-mentioned embodiments, wherein the metal ion is selected from iron, copper, nickel, zinc, cobalt and chromium. A metal ion selected from the group consisting of: Since these metal ions can easily form a coordinate bond with the present compound, the viscosity control agent of the present embodiment can provide a composition liquid in which the polymer type complex structure can be easily formed.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention can be typically implemented as follows. The present compound and the present metal ion used in the composition liquid of the present invention and the viscosity controlling agent of the present invention can form the above-described polymer complex structure under predetermined conditions according to the use of the composition liquid and the viscosity controlling agent. Any combination may be used, and there is no particular limitation.

For example, the present compound suitable for practicing the present invention has a nitrogen-containing heterocyclic compound which can be a ligand at the above-mentioned coordination bond forming portion. In particular, phenanthroline or 2,2′-bipyridyl is preferred as the coordination bond forming part of the compound.

In the present compound, two or more of these coordination bond forming portions may be directly bonded, but it is preferable to bond them to a spacer portion having a molecular chain structure. Is preferably a rigid structure because each coordination bond forming portion in one molecule of the present compound can be easily coordinated with a separate present metal ion. Such a spacer portion having a rigid structure can be constructed by including an acetylene bond or an aromatic ring in the main chain of the spacer portion. A particularly preferred specific example of the present compound is a compound having a coordination bond-forming portion composed of phenanthroline at both ends of the rigid spacer portion, and represented by the following formula:

[0018]

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Or a compound of the following formula:

[0020]

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Or a compound 2 represented by the following formula:

[0022]

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Or a compound 3 represented by the following formula:

[0024]

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Or a compound of the following formula:

[0026]

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Or a compound of the following formula:

[0028]

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Compound 6 represented by the formula: In each of the above compounds 1 to 6, a compound in which one or two of phenanthroline is substituted with 2,2'-bipyridyl is also suitable for the practice of the present invention.

On the other hand, the metal ion used in the practice of the present invention can be a nucleus of the polymer type complex structure by bonding two or more of the above-mentioned coordination bond forming parts of the present compound as ligands. What is necessary is just to obtain, and it does not specifically limit.
Specific examples of such metal ions include iron, copper,
There are ions of nickel, zinc, cobalt, chromium, alkali metals, or alkaline earth metals. Of these, iron,
Copper, nickel, zinc, cobalt, and chromium ions are preferable, and among these compounds, an iron ion and a nickel ion are particularly preferable for the compound having a coordination bond-forming portion composed of phenanthroline.

The viscosity of the composition liquid of the present invention and the viscosity controlling agent of the present invention can be controlled by dissolving or dispersing the present compound and the present metal ion. It can be applied to any of them. Various components (elements) depending on the purpose of use can be added to the composition liquid of the present invention as long as the formation of a coordination bond between the present compound and the present metal ion is not inhibited. For example, by adding various film-forming main elements and film-forming auxiliary elements and other elements, the composition liquid of the present invention can be applied to water-based paints and oil-based paints. Alternatively, the composition liquid of the present invention can be applied to liquid food additives and cosmetics as long as components that are harmless to the human body are selected.

Therefore, the viscosity controlling agent of the present invention can be suitably used for preparing the composition liquid of the present invention using them. The viscosity controlling agent of the present invention can be applied to the composition liquid in various forms depending on the properties of the composition liquid to be applied. For example, it may be provided as an aqueous or organic solvent system containing the present compound and the present metal ion, or may be provided as a powder containing the present compound and the present metal ion, depending on the application. In addition, in the viscosity controlling agent of the present invention, the present metal ion may be contained in various salt forms as long as a metal ion capable of coordinating bond can be generated in the added composition solution. The salts used in each of the examples described below are preferably used for causing the viscosity control agent of the present invention to contain the present metal ion.

In the composition of the present invention, since the present compound and the present metal ion are contained together, the coordination bond between the coordination bond forming part of the present compound and the present metal ion is not changed. Is left spontaneously to form, thereby forming the above-mentioned polymer type complex structure. Therefore,
The viscosity of the composition liquid of the present invention in a stationary state increases. On the other hand, when low viscosity is required, the desired low viscosity can be achieved by subjecting the composition liquid of the present invention to conditions under which a certain or more shear stress is applied or heating conditions depending on the application. obtain. For example, in the case of the composition liquid of the present invention for use in paints, the conditions can be set such that a certain or more shear stress is applied by spraying from a spray device or the like.

Hereinafter, a preferred embodiment of the composition liquid of the present invention which can be applied to a paint will be described with reference to FIG. The composition liquid according to the present embodiment (hereinafter, referred to as “the composition liquid”) is
The aqueous solvent contains any of the above compounds 1 to 6 (hereinafter referred to as “phenanthroline compound”) as the present compound, and contains an iron ion as the present metal ion. The phenanthroline moiety in the phenanthroline compound has strong coordination binding ability to iron ions. Iron ions can coordinate three phenanthrolines.

As shown in FIG. 2, by leaving the present composition at rest, a coordination bond between the phenanthroline compound and the iron ion is spontaneously generated, and a network-like polymer type complex structure is formed. Is formed. Therefore, in this state, the present composition liquid can exhibit the high viscosity required when the paint is applied. On the other hand, when the present composition liquid is sprayed using a general spray device (such as a general-purpose spray gun), a shear stress is applied to the present composition liquid such that the polymer type complex structure can be collapsed by jetting from a nozzle. available. That is, in the present composition liquid immediately after being sprayed as an aerosol from the spray device, the above-mentioned polymer type complex structure is collapsed by air pressure (see the left diagram in FIG. 1), and a low viscosity required at the time of spraying is developed. Have been. Therefore, with the paint based on this composition liquid, spray painting with good work efficiency can be realized. After the object is coated, the shear stress is removed, so that the polymer-type complex structure is regenerated again, and the high viscosity suitable for preventing sagging is restored. It is well known that in the case of a paint containing a large amount of a pigment or the like in the present composition liquid (that is, a non-Newtonian fluid), its viscosity generally depends on the shear rate.

[0036]

EXAMPLES In the following examples, the composition liquid of the present invention and the viscosity controlling agent of the present invention relating to paints will be described in more detail, but these do not limit the present invention in any way.

Example 1 The above compound 1 was used as the present compound.
(12.5 mg) was dissolved in 1.125 g of a mixed solvent of 5: 4 (weight ratio) of water: acetic acid. For using iron ions as the metal ions FeSO ₄ · 7H ₂ O as a source: the (4.45mg 2 / 3mol equivalent of Compound 1) was dissolved in water 0.125 g, the compound 1
Was added to the solution. The iron ion can coordinate three phenanthrolines. The concentration of Compound 1 was adjusted to be 1% by weight after mixing the above two solutions. After the two solutions were mixed, they were allowed to stand to form a coordination bond. As a result, the mixture showed high viscosity. Next, as an index for examining changes in the change in viscosity of the mixed liquid when shearing was applied in this state, the dependence of the viscosity on the shear rate was measured. In addition, the change in viscosity with respect to shear is measured by a dynamic viscoelasticity measurement device “ARES” (Rheometri
c Scientific product). The measurement method was a steady flow viscosity measurement method, and the geometry used was a cone plate (diameter 25 mm). All measurement temperatures are 25 ° C. FIG. 3 shows the change in viscosity with respect to the shear rate of the mixed solution of the present example. The abscissa of this figure and each of the following figures show the shear rate (s ^-1 = cm / s · cm), and the ordinate shows the viscosity (Pa ·
s). Liquid mixture of the present embodiment has a sufficient viscosity to hold in the general shear rate at the time of coating wear (10 ^-1 ~10 ⁰ s ^-1) in the paint. On the other hand, the shear rate at the time of spraying (10 ⁴ to 10 ⁵ s ⁻¹ ) has not been measured because it exceeds the measurement limit of the above-mentioned apparatus, but it can be seen that the viscosity at the time of spraying can be sufficiently reduced. It is inferred from the change in viscosity with respect to the shear rate shown in (1).

Reference Example 1 FeSO _{4 in} Example 1 was used.
Only · 7H ₂ O point without added is different, the other conditions were the same. That is, a solution of only the compound 1 as the present compound was prepared, and a change in viscosity with respect to a shear rate of the solution was measured in the same manner as in Example 1. Since the viscosity of the solution containing only Compound 1 was low, a rotating double cylinder was used as the geometry. As described above, when spraying a paint, a high shear stress is applied to the composition liquid to destroy the polymer type complex structure. Therefore, the result of this reference example is the polymer type complex of the composition liquid of Example 1 above. This corresponds to the evaluation of viscosity at the time of structural collapse. FIG. 4 shows the change in viscosity with respect to the shear rate of the solution of this reference example. The viscosity hardly changed with the change in the shear rate, and was sufficiently lower than the viscosity required during spraying.

Example 2 The above compound 2 was used as the present compound.
Point and FeSO which is the source of this metal ion_Four・ 7H_TwoO
After the addition amount of 4.06 mg (2/3 mol equivalent of compound 2)
All other conditions were the same as in Example 1 above. This implementation
FIG. 5 shows the change in viscosity with respect to the shear rate of the mixture of the example.
You. The mixed solution of this example is generally used for coating with a paint.
Shear rate (10^-1-10⁰s^-1)
It has sufficient viscosity. On the other hand, shear during spraying
Speed (10 ^Four-10^Fives^-1About the above)
Unmeasured due to exceeding the limit, but when spraying
The shear rate shown in FIG. 5 indicates that the viscosity can be reduced sufficiently.
Inferred from the change in viscosity with respect to

Reference Example 2 The only difference was that this compound was Compound 2, and the other conditions were the same as in Reference Example 1. Note that, as described above, when the paint is sprayed, a high shear stress is applied to the composition liquid to destroy the polymer type complex structure. Therefore, the result of this reference example is the polymer type complex of the composition liquid of Example 2 above. This corresponds to the evaluation of viscosity at the time of structural collapse. FIG. 6 shows the change in viscosity with respect to the shear rate of the solution of this reference example. The viscosity hardly changed with the change in the shear rate, and was sufficiently lower than the viscosity required during spraying.

Example 3 The above compound 3 was used as the present compound.
Point and FeSO which is the source of this metal ion_Four・ 7H_TwoO
Is 3.88 mg (2/3 mol equivalent of compound 3)
All other conditions were the same as in Example 1 above. This implementation
FIG. 7 shows the change in viscosity with respect to the shear rate of the mixture of the example.
You. The mixed solution of this example is generally used for coating with a paint.
Shear rate (10^-1-10⁰s^-1)
It has sufficient viscosity. On the other hand, shear during spraying
Speed (10 ^Four-10^Fives^-1About the above)
Unmeasured due to exceeding the limit, but when spraying
The shear rate shown in Fig. 7 indicates that the viscosity can be reduced sufficiently.
Inferred from the change in viscosity with respect to

Reference Example 3 The only difference was that this compound was Compound 3, and the other conditions were the same as in Reference Example 1. Note that, as described above, when the paint is sprayed, a high shear stress is applied to the composition liquid to destroy the polymer type complex structure. Therefore, the result of this reference example is the polymer type complex of the composition liquid of Example 3 above. This corresponds to the evaluation of viscosity at the time of structural collapse. FIG. 8 shows the change in viscosity with respect to the shear rate of the solution of this reference example. The change in viscosity with respect to the change in shear rate was slight, and was sufficiently low with respect to the viscosity required during spraying.

Example 4 The above compound 1 was used as the present compound.
(12.5 mg) in a mixed solution of water: acetic acid 8: 1 (weight ratio)
All conditions except for the fact that the solvent was dissolved in 1.125 g of the medium were the same as those in Example 1 above.
The same was done. With respect to the shear rate of the mixture of the present example
FIG. 9 shows the change in viscosity. The mixed liquid of the present embodiment is used for paints.
Shearing speed (10^-1-10⁰s
^-1) Has sufficient viscosity to be maintained. one
On the other hand, the shear rate during spraying (10 ^Four-10^Fives^-1)
Not measured due to exceeding the measurement limit of the above equipment
However, the viscosity during spraying may be sufficiently reduced.
Inferred from the change in viscosity with respect to the shear rate shown in FIG.
It is.

Reference Example 4 Compound 1 was prepared by mixing water: acetic acid at 8: 1.
(Weight ratio)
Other conditions were the same as in Reference Example 1. Note that, as described above, when the paint is sprayed, high shear stress is applied to the composition liquid to destroy the polymer type complex structure. Therefore, the result of this reference example is that the polymer type complex of the composition liquid of Example 4 is used. This corresponds to the evaluation of viscosity at the time of structural collapse. FIG. 10 shows the change in viscosity with respect to the shear rate of the solution of this reference example. The viscosity hardly changed with the change in the shear rate, and was sufficiently lower than the viscosity required during spraying.

Example 5 The source of the present metal ions was FeCl
_Two・ 4H_TwoO (addition amount 3.18 mg: 2/3 mol equivalent of compound 1)
The conditions other than the above were all the same as in Example 4 above.
Result of viscosity change with respect to shear rate of the mixture of this example
Is shown in FIG. The mixed solution of the present example was applied to a paint.
The general shear rate at the time of wearing (10^-1-10⁰s ^-1)
It has sufficient viscosity to be maintained. Meanwhile, spray
-Shear rate (10^Four-10^Fives^-1About)
Not measured due to exceeding the measurement limit of the device,
FIG. 11 shows that the viscosity during spraying can be sufficiently reduced.
Inferred from the change in viscosity with respect to the applied shear rate. This
This is also supported by the results of Reference Example 4 described above.

Example 6 The source of the present metal ions was Fe (C
lO_Four)_Two・ 6H_TwoO (addition amount 5.81 mg: 2/3 mol equivalent of compound 1)
All conditions other than the point were performed in the same manner as in Example 4 above.
Was. Of the viscosity change with respect to the shear rate of the mixture of the present embodiment.
The result is shown in FIG. The mixed solution of this example is used
General shearing speed during coating (10^-1-10⁰s ^-1)
Has sufficient viscosity to be maintained in On the other hand,
Shear speed during play (10^Four-10^Fives^-1)about
Is not measured because it exceeds the measurement limit of the above equipment
However, the viscosity during spraying can be sufficiently reduced as shown in FIG.
From the change in viscosity with respect to the shear rate shown in
You. This is supported by the results of Reference Example 4 above.
It is.

Example 7 The source of the present metal ions was Fe (O
COCH_Three)_Two・ 4H_TwoO (addition amount 3.98 mg: 2/3 mol equivalent of compound 1)
All the conditions other than the point of (amount) were the same as in Example 4 above.
went. Viscosity variation of the mixture of this example with respect to shear rate
The results of the conversion are shown in FIG. The mixed liquid of the present embodiment is used for paints.
Shearing speed (10^-1-10⁰s
^-1) Has sufficient viscosity to be maintained. one
On the other hand, the shear rate during spraying (10^Four-10^Fives^-1)
Not measured due to exceeding the measurement limit of the above equipment
However, the viscosity during spraying may be sufficiently reduced.
Inferred from the change in viscosity with respect to the shear rate shown in Fig. 13
Is done. This is supported by the results of Reference Example 4 above.
Be held.

Example 8 The source of the present metal ions was Ni (O
COCH_Three)_Two(Addition amount 2.78 mg: 2/3 mol equivalent of compound 1)
The conditions other than the above were all the same as in Example 4 above.
Result of viscosity change with respect to shear rate of the mixture of this example
Is shown in FIG. The mixed solution of the present example was applied to a paint.
The general shear rate at the time of wearing (10^-1-10⁰s ^-1)
It has sufficient viscosity to be maintained. Meanwhile, spray
-Shear rate (10^Four-10^Fives^-1About)
Not measured due to exceeding the measurement limit of the device,
FIG. 14 shows that the viscosity during spraying can be sufficiently reduced.
Inferred from the change in viscosity with respect to the applied shear rate. This
This is also supported by the results of Reference Example 4 described above.

[0049]

According to the viscosity control agent of the present invention, it is possible to control the viscosity of various composition liquids corresponding to different environmental conditions or use conditions. That is, according to the viscosity controlling agent of the present invention, it is possible to increase the viscosity by forming the above-mentioned polymer type complex structure, and to temporarily reduce the increased viscosity by applying a shear stress or the like. It is possible to provide a composition liquid whose characteristic viscosity can be controlled.

The viscosity of the composition of the present invention can be varied depending on the presence or absence of a coordination bond between the present compound and the present metal ion. That is, high viscosity is realized by the formation of the polymer type complex structure, and the increased viscosity can be temporarily reduced by applying a shear stress or the like. For this reason, according to the composition liquid of the present invention, paints, cosmetics, food additives, etc., capable of realizing both high-viscosity viscosity and low-viscosity viscosity according to the required conditions. A liquid material can be provided.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing the present form of the present compound and the present metal ion in a composition solution of the present invention.

FIG. 2 is a schematic diagram showing a coordination bond state in a composition solution of the present invention.

FIG. 3 is a graph showing a change in viscosity with respect to a shear rate of the composition liquid of the present invention in one example.

FIG. 4 is a graph showing a change in viscosity with respect to a shear rate of a solution prepared in one reference example.

FIG. 5 is a graph showing a change in viscosity with respect to a shear rate of the composition liquid of the present invention in one example.

FIG. 6 is a graph showing a change in viscosity with respect to a shear rate of a solution prepared in one reference example.

FIG. 7 is a graph showing a change in viscosity with respect to a shear rate of the composition liquid of the present invention in one example.

FIG. 8 is a graph showing a change in viscosity with respect to a shear rate of a solution prepared in one reference example.

FIG. 9 is a graph showing a change in viscosity with respect to a shear rate of the composition liquid of the present invention in one example.

FIG. 10 is a graph showing a change in viscosity with respect to a shear rate of a solution prepared in one reference example.

FIG. 11 is a graph showing a change in viscosity with respect to a shear rate of the composition liquid of the present invention in one example.

FIG. 12 is a graph showing a change in viscosity with respect to a shear rate of the composition liquid of the present invention in one example.

FIG. 13 is a graph showing a change in viscosity with respect to a shear rate of the composition liquid of the present invention in one example.

FIG. 14 is a graph showing a change in viscosity with respect to a shear rate of the composition liquid of the present invention in one example.

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁶ Identification code FI C09D 7/12 C09D 7/12 Z A23L 1/04

Claims (1)

[Claims] 1. The following components: a). A compound comprising two or more coordination bond forming moieties; and b). A metal ion capable of coordinating with a plurality of said coordination bond-forming moieties; and forming a polymer-type complex structure based on a coordination bond between said compound and said metal ion to increase the viscosity, A viscosity-controllable composition liquid characterized in that the viscosity decreases with the collapse of the formed polymer-type complex structure.