JP2008007719A - Polyester resin aqueous dispersion and adhesive using it, coating agent, coating material - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a copolymerized polyester resin aqueous dispersion produced by using an aluminum compound as a polymerization catalyst giving sufficient polymerization activity with reduced discoloring caused by poor thermal stability of the resultant copolymerized polyester resin and little foreign matter derived from aluminum. <P>SOLUTION: The polyester resin aqueous dispersion composed of the copolymerized polyester resin with a resin acid number of 3-110 mgKOH/g is produced in the presence of the polymerization catalyst containing at least the aluminum compound. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a method for producing an aqueous dispersion of a polyester resin using a polymerization catalyst mainly composed of an aluminum compound without using a metal polymerization catalyst such as a tin compound, an antimony compound, a germanium compound and a titanium compound, and a film using the same. , Water-based adhesives for fabrics and metals, water-based coating agents, water-based paints and production methods.

  Water-based adhesives, water-based coating agents, and water-based paints have been actively developed in response to the demands of the world for VOC regulations. The resin used in these applications is required to have a wide range of adhesion to various substrates such as films, metals, and cloth, heat resistance, weather resistance, solvent resistance, and dispersibility of various additives such as pigments. Copolymerized polyester aqueous dispersions mainly using titanium-based polymerization catalysts (Patent Documents 1 and 2), tin-based polymerization catalysts (Patent Document 3), and antimony-based polymerization catalysts (Patent Document 4) are among these required performances. Since it has good adhesiveness, heat resistance, weather resistance, and solvent resistance, it is widely used in fields where these features are utilized.

JP 2005-126619 A JP 2004-292665 A JP 2005-239869 A JP 2004-143326 A

On the other hand, antimony-based, titanium-based, germanium-based, tin-based, and the like are known as conventional copolymerization polyester polymerization catalysts. However, regarding the production of the copolyester aqueous dispersion, the following problems remain in these polymerization catalyst species.
(1) Polymerization catalysts such as tin compounds and antimony compounds contain heavy metals, and polyesters not containing these are desired.
(2) The antimony compound is dull in the obtained copolymer polyester resin.
(3) When a titanium compound is used as a polymerization catalyst, the copolymerized polyester resin may be colored. When an aliphatic dicarboxylic acid such as adipic acid or sebacic acid is used as a copolymerization component, the resin is inferior in heat resistance. For example, a white paint cannot obtain the original white color. Moreover, when pasting together a transparent adherend, the coloring of the resin used as the adhesive layer may be a problem.
(4) The germanium compound can be used effectively as the polymerization catalyst, but the price is extremely high.
and so on.

  From such a technical background, an aluminum compound is mainly used as a polymerization catalyst, the polymerization activity is sufficient, coloring due to poor thermal stability of the obtained copolyester resin is suppressed, and further, there is little coagulation of foreign matters derived from aluminum. There is a need for polymerized polyester water dispersions.

As a result of intensive investigations in view of these problems, the inventors have identified the following components for the polymerization catalyst and copolymer polyester made of an aluminum compound, so that they do not contain heavy metals and have excellent heat resistance. It was found that no copolyester aqueous dispersion was obtained and the present invention was reached.
That is, the present invention is a polyester resin aqueous dispersion having the following characteristics, and an aqueous adhesive, aqueous coating agent, and aqueous paint using the same.

(1) A polyester resin aqueous dispersion comprising a copolymerized polyester resin having a resin acid value of 3 to 110 mgKOH / g, which is produced in the presence of a polymerization catalyst containing at least an aluminum compound.
(2) The polyester resin aqueous dispersion according to (1), wherein 80% or more of the resin acid value is derived from a carboxyl group and / or a sulfone group.
(3) The polyester according to any one of (1) to (2), wherein the polymerization catalyst comprises at least one selected from the group consisting of aluminum compounds and at least one selected from phosphorus compounds. Resin water dispersion.
(4) The polymerization catalyst comprises at least one selected from the group consisting of aluminum compounds, and an alkali metal and / or an alkaline earth metal. The polyester resin aqueous dispersion as described.
(5) The polyester resin aqueous dispersion according to any one of (1) to (4), wherein the aluminum compound is a carboxylic acid-containing compound.
(6) The polyester resin aqueous dispersion according to (3) or (5), wherein the phosphorus compound is at least one selected from the group consisting of aromatic phosphonic acids and derivatives thereof.
(7) The polyester resin water according to any one of (4) to (6), wherein the alkali metal and alkaline earth metal are at least one selected from Li, Na, Mg or a compound thereof. Dispersion.
(8) The polyester resin according to any one of (1) to (7), wherein an aluminum-based foreign substance insoluble in the copolymerized polyester resin is measured for 5 hours or less when measured by the method described in the specification. Water dispersion.
(9) The aqueous adhesive using the polyester resin aqueous dispersion according to any one of (1) to (8), wherein the adherend is any one of a film, a cloth and a metal.
(10) An aqueous coating agent using the polyester resin aqueous dispersion according to any one of (1) to (8).
(11) A water-based paint using the polyester resin aqueous dispersion according to any one of (1) to (8).

  As is clear from the above, the polyester resin composition of the present invention exhibits an excellent hue and excellent heat resistance as compared with conventional polyester-based aqueous dispersions, adhesion between various plastic films, various plastic films and woody materials. It is useful as an adhesive for board, cloth or metal, as a coating agent for various substrates, and as a paint. Moreover, since the polyester resin aqueous dispersion of this invention has the outstanding transparency and is low coloring, it is suitable also for shape | molding and using for a film.

  As an aluminum compound which comprises the polymerization catalyst of this invention, a well-known aluminum compound other than metallic aluminum can be used without limitation.

  Specific examples of the aluminum compound include aluminum formate, aluminum acetate, basic aluminum acetate, aluminum propionate, aluminum oxalate, aluminum acrylate, aluminum laurate, aluminum stearate, aluminum benzoate, aluminum trichloroacetate, and aluminum lactate. , Carboxylates such as aluminum citrate, aluminum salicylate, inorganic acid salts such as aluminum chloride, aluminum hydroxide, aluminum hydroxide chloride, aluminum carbonate, aluminum phosphate, aluminum phosphonate, aluminum methoxide, aluminum ethoxide, aluminum Aluminum such as n-propoxide, aluminum iso-propoxide, aluminum n-butoxide, aluminum t-butoxide Aluminum alkoxide, aluminum acetylacetonate, aluminum acetylacetate, aluminum ethylacetoacetate, aluminum ethyl acetoacetate diiso-propoxide, organoaluminum compounds such as trimethylaluminum, triethylaluminum and their partial hydrolysates And aluminum oxide. Of these, carboxylates, inorganic acid salts and chelate compounds are preferred, and among these, aluminum acetate, basic aluminum acetate, aluminum chloride, aluminum hydroxide, aluminum hydroxide chloride and aluminum acetylacetonate are particularly preferred.

  As the usage-amount of the aluminum compound of this invention, 0.001-1.0 mol% is preferable with respect to the number-of-moles of all the structural units of carboxylic acid components, such as dicarboxylic acid and polyhydric carboxylic acid of polyester obtained, Furthermore, Preferably, it is 0.005-0.5 mol%. Thus, the amount of the aluminum component to be added is required to be wide because the catalytic activity varies greatly depending on the type and combination of polyvalent carboxylic acid and diol used, and the polymerization method. This shows the same tendency with other polymerization catalysts. In particular, when polymerization is not performed under reduced pressure, it is necessary to greatly increase the amount of polymerization catalyst. Since the polymerization catalyst of the present invention exhibits sufficient catalytic activity, as a result, the resulting polyester has excellent thermal stability, thermal oxidation stability, and hydrolysis resistance, and the generation and coloring of foreign matters due to aluminum are suppressed. .

Below, the specific example of the preparation method of the same solution using basic aluminum acetate as an aluminum compound is shown.
Examples of preparation of an aqueous solution of basic aluminum acetate are as follows. That is, water is added to basic aluminum acetate and sufficiently diffused at room temperature, and then dissolved at room temperature to 100 ° C. to prepare an aqueous solution. In this case, the temperature is preferably low, and the heating is preferably short. The concentration of the aqueous solution is preferably 10 to 30 g / l, particularly preferably 15 to 20 g / l.

Furthermore, in order to suppress the heat shock at the time of catalyst addition, it is a preferable aspect that the basic aluminum acetate aqueous solution is the same ethylene glycol solution. That is, ethylene glycol is added to the above aqueous solution. The amount of ethylene glycol added is preferably 0.5 to 5.0 times the volume ratio of the aqueous solution. More preferably, the amount is 0.8 to 2.0 times. After stirring the solution to obtain a uniform water / ethylene glycol mixed solution, the solution is heated and water is distilled off to obtain an ethylene glycol solution. The temperature is preferably 70 ° C. or higher, and preferably 130 ° C. or lower. More preferably, the water is distilled off by heating and stirring at 80 to 120 ° C. More preferably, heating is performed under reduced pressure and / or an inert gas atmosphere such as nitrogen or argon, and water is distilled off to prepare a catalyst solution.
The above ethylene glycol is an example, and other alkylene glycols can be used in the same manner.

  The basic aluminum acetate described above is solubilized in a solvent such as water or glycol, in particular, water and / or solubilized in ethylene glycol is used from the viewpoint of catalytic activity and reduction of foreign matter in the resulting copolymerized polyester. preferable.

  The phosphorus compound constituting the polymerization catalyst of the present invention is not particularly limited, but phosphoric acid and phosphoric acid esters such as trimethyl phosphoric acid, triethyl phosphoric acid, phenyl phosphoric acid and triphenyl phosphoric acid, phosphorous acid and trimethyl phosphine. Phyto, triethyl phosphite, triphenyl phosphite, tris (2,4-di-tert-butylphenyl) phosphite, tetrakis (2,4-di-tert-butylphenyl) 4,4'-biphenylene diphosphite, etc. And phosphite esters.

  More preferable phosphorus compounds of the present invention are at least one phosphorus compound selected from the group consisting of phosphonic acid compounds, phosphinic acid compounds, phosphine oxide compounds, phosphonous acid compounds, phosphinic acid compounds, and phosphine compounds. It is. By using these phosphorus compounds, an effect of improving the catalytic activity is seen, and an effect of improving physical properties such as thermal stability of the polyester is seen. Among these, use of a phosphonic acid compound is preferable because of its great effect of improving physical properties and improving catalytic activity. Among the above-described phosphorus compounds, the use of a compound having an aromatic ring structure is preferable because the physical property improving effect and the catalytic activity improving effect are great.

  The phosphonic acid-based compound, phosphinic acid-based compound, phosphine oxide-based compound, phosphonous acid-based compound, phosphinic acid-based compound, and phosphine-based compound referred to in the present invention are represented by the following formulas (Formula 1) to (Formula 6), respectively. It refers to a compound having the structure represented.

  Examples of the phosphonic acid compound of the present invention include dimethyl methylphosphonate, diphenyl methylphosphonate, dimethyl phenylphosphonate, diethyl phenylphosphonate, diphenyl phenylphosphonate, dimethyl benzylphosphonate, diethyl benzylphosphonate and the like. Examples of the phosphinic acid compound of the present invention include diphenylphosphinic acid, methyl diphenylphosphinate, phenyl diphenylphosphinate, phenylphosphinic acid, methyl phenylphosphinate, phenylphenylphosphinate and the like. Examples of the phosphine oxide compound of the present invention include diphenylphosphine oxide, methyldiphenylphosphine oxide, and triphenylphosphine oxide.

  Among the phosphinic acid compounds, phosphine oxide compounds, phosphonous acid compounds, phosphinic acid compounds, and phosphine compounds, the phosphorus compounds of the present invention are represented by the following formulas (Chemical Formula 7) to (Chemical Formula 12). Are preferred.

  Among the above-described phosphorus compounds, the use of a compound having an aromatic ring structure is preferable because the physical property improving effect and the catalytic activity improving effect are great.

  In addition, when the compounds represented by the following general formulas (Chemical Formula 13) to (Chemical Formula 15) are used as the phosphorus compound of the present invention, the physical property improving effect and the catalytic activity improving effect are particularly large and preferable.

(In the formulas (Chemical Formula 13) to (Chemical Formula 15), R ¹ , R ⁴ , R ⁵ , and R ⁶ are each independently hydrogen, a hydrocarbon group having 1 to 50 carbon atoms, a hydroxyl group, a halogen group, an alkoxyl group, or an amino group. R ² and R ³ each independently represent hydrogen, a hydrocarbon group having 1 to 50 carbon atoms, a hydrocarbon group having 1 to 50 carbon atoms, a hydroxyl group or an alkoxyl group. However, the hydrocarbon group may contain an alicyclic structure such as cyclohexyl or an aromatic ring structure such as phenyl or naphthyl.)

As the phosphorus compound of the present invention, compounds in which R ¹ , R ⁴ , R ⁵ and R ⁶ are groups having an aromatic ring structure in the above formulas (Chemical Formula 13) to (Chemical Formula 15) are particularly preferable.

  Examples of the phosphorus compound of the present invention include dimethyl methylphosphonate, diphenyl methylphosphonate, dimethyl phenylphosphonate, diethyl phenylphosphonate, diphenyl phenylphosphonate, dimethyl benzylphosphonate, diethyl benzylphosphonate, diphenylphosphinic acid, diphenylphosphinic acid. Examples include methyl, phenyl diphenylphosphinate, phenylphosphinic acid, methyl phenylphosphinate, phenyl phenylphosphinate, diphenylphosphine oxide, methyldiphenylphosphine oxide, and triphenylphosphine oxide. Of these, dimethyl phenylphosphonate and diethyl benzylphosphonate are particularly preferred.

  Among the phosphorus compounds described above, in the present invention, a metal salt compound of phosphorus is particularly preferable as the phosphorus compound. The phosphorus metal salt compound is not particularly limited as long as it is a metal salt of a phosphorus compound. However, when a metal salt of a phosphonic acid compound is used, the physical properties improving effect and catalytic activity improving effect of the polyester, which are the problems of the present invention, are improved. Largely preferred. Examples of the metal salt of the phosphorus compound include a monometal salt, a dimetal salt, and a trimetal salt.

  Further, among the above-described phosphorus compounds, when the metal part of the metal salt is selected from Li, Na, K, Be, Mg, Sr, Ba, Mn, Ni, Cu, and Zn, the catalytic activity is improved. Is preferable. Of these, Li, Na, and Mg are particularly preferable.

  As the phosphorus metal salt compound of the present invention, it is preferable to use at least one selected from the compounds represented by the following general formula (Chemical Formula 16) because the effect of improving the physical properties and the effect of improving the catalytic activity are large.

(In the formula (Chem. 16), R ¹ represents hydrogen, a hydrocarbon group having 1 to 50 carbon atoms, a hydroxyl group, a halogen group, an alkoxyl group, or an amino group, and a hydrocarbon group having 1 to 50 carbon atoms. R ² represents , Hydrogen, a hydrocarbon group having 1 to 50 carbon atoms, a hydroxyl group or an alkoxyl group, and a hydrocarbon group having 1 to 50 carbon atoms, R ³ represents hydrogen, a hydrocarbon group having 1 to 50 carbon atoms, a hydroxyl group or an alkoxyl. A hydrocarbon group having 1 to 50 carbon atoms including a group or carbonyl, l is an integer of 1 or more, m is 0 or an integer of 1 or more, l + m is 4 or less, M is (l + m And n represents an integer greater than or equal to 1. The hydrocarbon group may contain an alicyclic structure such as cyclohexyl, a branched structure, or an aromatic ring structure such as phenyl or naphthyl.)

Examples of R ¹ include phenyl, 1-naphthyl, 2-naphthyl, 9-anthryl, 4-biphenyl, 2-biphenyl, and the like. Examples of R ² include hydrogen, methyl group, ethyl group, propyl group, isopropyl group, n-butyl group, sec-butyl group, tert-butyl group, long-chain aliphatic group, phenyl group, naphthyl group, Examples thereof include a substituted phenyl group, a naphthyl group, and a group represented by —CH ₂ CH ₂ OH. Examples of R ³ O ⁻ include hydroxide ions, alcoholate ions, acetate ions, and acetylacetone ions.

  Among the compounds represented by the general formula (Chemical Formula 16), it is preferable to use at least one selected from the compounds represented by the following General Formula (Chemical Formula 17).

(In the formula (Chemical Formula 17), R ¹ represents hydrogen, a hydrocarbon group having 1 to 50 carbon atoms, a hydroxyl group, a halogen group, an alkoxyl group, or an amino group, and a hydrocarbon group having 1 to 50 carbon atoms. R ³ represents , Hydrogen, a hydrocarbon group having 1 to 50 carbon atoms, a hydroxyl group or an alkoxyl group, or a hydrocarbon group having 1 to 50 carbon atoms including carbonyl, l is an integer of 1 or more, and m is 0 or an integer of 1 or more. , L + m is 4 or less, M represents a (l + m) -valent metal cation, and the hydrocarbon group contains an alicyclic structure such as cyclohexyl, a branched structure, or an aromatic ring structure such as phenyl or naphthyl. May be good.)

Examples of R ¹ include phenyl, 1-naphthyl, 2-naphthyl, 9-anthryl, 4-biphenyl, 2-biphenyl, and the like. Examples of R ³ O ⁻ include hydroxide ions, alcoholate ions, acetate ions, and acetylacetone ions.

  Among the above-described phosphorus compounds, the use of a compound having an aromatic ring structure is preferable because the physical property improving effect and the catalytic activity improving effect are great.

  Among the above formulas (Chemical Formula 17), when M is selected from Li, Na, K, Be, Mg, Sr, Ba, Mn, Ni, Cu, and Zn, the effect of improving the catalytic activity is large and preferable. Of these, Li, Na, and Mg are particularly preferable.

  Examples of the metal salt compound of phosphorus according to the present invention include lithium [ethyl (1-naphthyl) methylphosphonate], sodium [ethyl (1-naphthyl) methylphosphonate], magnesium bis [ethyl (1-naphthyl) methylphosphonate], potassium [ (2-naphthyl) methylphosphonate ethyl], magnesium bis [(2-naphthyl) methylphosphonate ethyl], lithium [benzylphosphonate ethyl], sodium [benzylphosphonate ethyl], magnesium bis [benzylphosphonate ethyl], beryllium bis [Ethyl benzylphosphonate], strontium bis [ethyl benzylphosphonate], manganese bis [ethyl benzylphosphonate], sodium benzylphosphonate, magnesium bis [benzylphosphonic acid], sodium [(9-anths L) ethyl methylphosphonate], magnesium bis [(9-anthryl) methylphosphonate ethyl], sodium [ethyl 4-hydroxybenzylphosphonate], magnesium bis [4-hydroxybenzylphosphonate ethyl], sodium [4-chlorobenzylphosphone] Acid phenyl], magnesium bis [4-chlorobenzylphosphonate ethyl], sodium [methyl 4-aminobenzylphosphonate], magnesium bis [4-aminobenzylphosphonate methyl], sodium phenylphosphonate, magnesium bis [phenylphosphonic acid] Ethyl], zinc bis [ethyl phenylphosphonate] and the like. Among these, lithium [ethyl (1-naphthyl) methylphosphonate], sodium [ethyl (1-naphthyl) methylphosphonate], magnesium bis [ethyl (1-naphthyl) methylphosphonate], lithium [ethyl benzylphosphonate], Sodium [ethyl benzylphosphonate], magnesium bis [ethyl benzylphosphonate], sodium benzylphosphonate and magnesium bis [benzylphosphonic acid] are particularly preferred.

Among the phosphorus compounds described above, in the present invention, a phosphorus compound having at least one P—OH bond is particularly preferable as the phosphorus compound. In addition to particularly enhancing the physical properties improving effect of the polyester by containing these phosphorus compounds, the catalytic activity is improved by using these phosphorus compounds in combination with the aluminum compound of the present invention at the time of polymerization of the polyester. Seen large.
The phosphorus compound having at least one P—OH bond is not particularly limited as long as it is a phosphorus compound having at least one P—OH in the molecule. Among these phosphorus compounds, use of a phosphonic acid compound having at least one P-OH bond facilitates formation of a complex with an aluminum compound, and is highly preferable for improving the physical properties and improving the catalytic activity of the polyester.

  Among the above-described phosphorus compounds, the use of a compound having an aromatic ring structure is preferable because the physical property improving effect and the catalytic activity improving effect are great.

  As the phosphorus compound having at least one P—OH bond of the present invention, it is preferable to use at least one selected from the compounds represented by the following general formula (Chemical Formula 18) because the physical property improving effect and the catalytic activity improving effect are large. .

(In the formula (Chemical Formula 18), R ¹ represents hydrogen, a hydrocarbon group having 1 to 50 carbon atoms, a hydroxyl group, a halogen group, an alkoxyl group, or an amino group, and a hydrocarbon group having 1 to 50 carbon atoms. R ² represents , Hydrogen, a hydrocarbon group having 1 to 50 carbon atoms, a hydrocarbon group having 1 to 50 carbon atoms including a hydroxyl group or an alkoxyl group, n represents an integer of 1 or more, and the hydrocarbon group is an alicyclic structure such as cyclohexyl. And may contain an aromatic ring structure such as a branched structure or phenyl or naphthyl.)

Examples of R ¹ include phenyl, 1-naphthyl, 2-naphthyl, 9-anthryl, 4-biphenyl, 2-biphenyl, and the like. Examples of R ² include hydrogen, methyl group, ethyl group, propyl group, isopropyl group, n-butyl group, sec-butyl group, tert-butyl group, long-chain aliphatic group, phenyl group, naphthyl group, Examples thereof include a substituted phenyl group, a naphthyl group, and a group represented by —CH ₂ CH ₂ OH.

  Among the above-described phosphorus compounds, the use of a compound having an aromatic ring structure is preferable because the physical property improving effect and the catalytic activity improving effect are great.

  Examples of the phosphorus compound having at least one P—OH bond of the present invention include (1-naphthyl) methylphosphonic acid ethyl, (1-naphthyl) methylphosphonic acid, (2-naphthyl) methylphosphonic acid ethyl, benzylphosphonic acid ethyl, benzylphosphonic acid. Acid, ethyl (9-anthryl) methylphosphonate, ethyl 4-hydroxybenzylphosphonate, ethyl 2-methylbenzylphosphonate, phenyl 4-chlorobenzylphosphonate, methyl 4-aminobenzylphosphonate, ethyl 4-methoxybenzylphosphonate Etc. Of these, ethyl (1-naphthyl) methylphosphonate and ethyl benzylphosphonate are particularly preferred.

  A preferable phosphorus compound of the present invention is a phosphorus compound represented by the chemical formula (Formula 19).

(In the formula (Chemical Formula 19), R ¹ represents a hydrocarbon group having ¹ to 49 carbon atoms, or a hydrocarbon group having ¹ to 49 carbon atoms including a hydroxyl group, a halogen group, an alkoxyl group, or an amino group, and R ² , R ³ each independently represents hydrogen, a hydrocarbon group having 1 to 50 carbon atoms, a hydrocarbon group having 1 to 50 carbon atoms, a hydroxyl group or an alkoxyl group, which has an alicyclic structure, a branched structure or an aromatic ring structure. May be included.)

More preferably, at least one of R ¹ , R ² and R ^{3 in} the chemical formula (Formula 19) is a compound containing an aromatic ring structure.

  Specific examples of these phosphorus compounds are shown below.

  Moreover, since the phosphorus compound of the present invention has a large molecular weight, it is more effective because it is less likely to be distilled off during polymerization.

  The phosphorus compound of the present invention is preferably a phosphorus compound having a phenol moiety in the same molecule. In addition to enhancing the physical properties of polyester by containing a phosphorus compound having a phenol moiety in the same molecule, the effect of increasing catalytic activity by using a phosphorus compound having a phenol moiety in the same molecule during polyester polymerization Is larger, and therefore the polyester productivity is excellent.

  The phosphorus compound having a phenol moiety in the same molecule is not particularly limited as long as it is a phosphorus compound having a phenol structure, but a phosphonic acid compound, a phosphinic acid compound, a phosphine oxide compound having a phenol moiety in the same molecule. When one or more compounds selected from the group consisting of a compound, a phosphonous acid compound, a phosphinic acid compound, and a phosphine compound are used, the effect of improving the physical properties of the polyester and the effect of improving the catalytic activity are greatly preferred. Among these, when a phosphonic acid compound having one or two or more phenol moieties in the same molecule is used, the effect of improving the physical properties of the polyester and the effect of improving the catalytic activity are particularly large and preferable.

  As a phosphorus compound which has the phenol part of this invention in the same molecule | numerator, the compound represented by the following general formula (Formula 26)-(Formula 28) is preferable.

(In the formulas (Chemical Formula 26) to (Chemical Formula 28), R ¹ is a carbon having 1 to 50 carbon atoms including a phenol part, a substituent such as a hydroxyl group, a halogen group, an alkoxyl group, or an amino group, and a phenol part. R ⁴ , R ⁵ and R ⁶ each independently represents a substituent such as hydrogen, a hydrocarbon group having 1 to 50 carbon atoms, a hydroxyl group, a halogen group, an alkoxyl group or an amino group. Represents a hydrocarbon group having 1 to 50 carbon atoms, R ² and R ³ each independently represent hydrogen, a hydrocarbon group having 1 to 50 carbon atoms, a hydrocarbon group having 1 to 50 carbon atoms, a hydroxyl group or an alkoxyl group, and the like. Represents a hydrocarbon group, provided that the hydrocarbon group may contain a branched structure, an alicyclic structure such as cyclohexyl, or an aromatic ring structure such as phenyl or naphthyl, and the ends of R ² and R ⁴ are bonded to each other. May be good.)

  Examples of the phosphorus compound having the phenol moiety of the present invention in the same molecule include p-hydroxyphenylphosphonic acid, dimethyl p-hydroxyphenylphosphonate, diethyl p-hydroxyphenylphosphonate, diphenyl p-hydroxyphenylphosphonate, bis (P-hydroxyphenyl) phosphinic acid, methyl bis (p-hydroxyphenyl) phosphinate, phenyl bis (p-hydroxyphenyl) phosphinate, p-hydroxyphenylphenylphosphinic acid, methyl p-hydroxyphenylphenylphosphinate, p- Phenyl hydroxyphenylphenylphosphinate, p-hydroxyphenylphosphinic acid, methyl p-hydroxyphenylphosphinate, phenyl p-hydroxyphenylphosphinate, bis (p-hydroxyphenyl Yl) phosphine oxide, tris (p- hydroxyphenyl) phosphine oxide, bis (p- hydroxyphenyl) methyl phosphine oxide, and the following formula (Formula 29), and the like compounds represented by to (Formula 32). Among these, a compound represented by the following formula (Chemical Formula 31) and dimethyl p-hydroxyphenylphosphonate are particularly preferable.

  As a compound represented by the above formula (Chemical Formula 31), SANKO-220 (manufactured by Sanko Co., Ltd.) can be used.

  Among the phosphorus compounds having the phenol moiety of the present invention in the same molecule, at least one selected from a metal salt compound of a specific phosphorus represented by the following general formula (Formula 33) is particularly preferable.

(In Formula (Chemical Formula 33), R ¹ and R ² each independently represent hydrogen and a hydrocarbon group having 1 to 30 carbon atoms. R ³ represents hydrogen, a hydrocarbon group having 1 to 50 carbon atoms, a hydroxyl group, or R ⁴ represents a hydrocarbon group having 1 to 50 carbon atoms including an alkoxyl group, R ⁴ represents hydrogen, a hydrocarbon group having 1 to 50 carbon atoms, a hydroxyl group, an alkoxyl group, or a carbonyl group including carbonyl. Examples of R ⁴ O ⁻ include hydroxide ion, alcoholate ion, acetate ion, acetylacetone ion, etc. l represents an integer of 1 or more, m represents 0 or an integer of 1 or more, and l + m represents M is an (l + m) -valent metal cation, n is an integer of 1 or more, and the hydrocarbon group is an alicyclic structure such as cyclohexyl or a branched structure, or an aromatic ring structure such as phenyl or naphthyl. May be included.)

  Among these, at least one selected from compounds represented by the following general formula (Formula 34) is preferable.

(In the formula (Chemical Formula 34), M ^{n +} represents an n-valent metal cation. N represents 1, 2, 3 or 4.)

  Among the above formulas (Chemical Formula 33) or (Chemical Formula 34), when M is selected from Li, Na, K, Be, Mg, Sr, Ba, Mn, Ni, Cu, Zn, the catalytic activity is improved. The effect is large and preferable. Of these, Li, Na, and Mg are particularly preferable.

  Specific phosphorus metal salt compounds of the present invention include lithium [ethyl 3,5-di-tert-butyl-4-hydroxybenzylphosphonate], sodium [3,5-di-tert-butyl-4-hydroxybenzyl]. Ethyl phosphonate], sodium [3,5-di-tert-butyl-4-hydroxybenzylphosphonic acid], potassium [ethyl 3,5-di-tert-butyl-4-hydroxybenzylphosphonate], magnesium bis [3 , 5-di-tert-butyl-4-hydroxybenzylphosphonic acid ethyl], magnesium bis [3,5-di-tert-butyl-4-hydroxybenzylphosphonic acid], beryllium bis [3,5-di-tert- Butyl-4-hydroxybenzylphosphonate methyl], strontium bis [3,5-di-tert-butyl-4-hydroxybenzylphosphonate ethyl], barium bis [3,5-di-tert-butyl] Phenyl-4-hydroxybenzylphosphonate], manganese bis [3,5-di-tert-butyl-4-hydroxybenzylphosphonate], nickel bis [3,5-di-tert-butyl-4-hydroxybenzyl] Ethyl phosphonate], copper bis [ethyl 3,5-di-tert-butyl-4-hydroxybenzylphosphonate], zinc bis [ethyl 3,5-di-tert-butyl-4-hydroxybenzylphosphonate] and the like. Can be mentioned. Among these, lithium [ethyl 3,5-di-tert-butyl-4-hydroxybenzylphosphonate], sodium [ethyl 3,5-di-tert-butyl-4-hydroxybenzylphosphonate], magnesium bis [ Ethyl 3,5-di-tert-butyl-4-hydroxybenzylphosphonate] is particularly preferred.

  Among the phosphorus compounds having the phenol moiety of the present invention in the same molecule, at least one selected from specific phosphorus compounds having at least one P—OH bond represented by the following general formula (Formula 35) is particularly preferable.

(In the formula (Chemical Formula 35), R ¹ and R ² each independently represent hydrogen and a hydrocarbon group having 1 to 30 carbon atoms. R ³ represents hydrogen, a hydrocarbon group having 1 to 50 carbon atoms, a hydroxyl group or an alkoxyl. Represents a hydrocarbon group containing 1 to 50 carbon atoms, and n represents an integer equal to or greater than 1. The hydrocarbon group includes an alicyclic structure such as cyclohexyl, a branched structure, and an aromatic ring structure such as phenyl or naphthyl. May be.)

  Among these, at least one selected from compounds represented by the following general formula (Formula 36) is preferable.

(In the formula (Chemical Formula 36), R ³ represents hydrogen, a hydrocarbon group having 1 to 50 carbon atoms, a hydroxyl group or an alkoxyl group containing 1 to 50 carbon atoms. The hydrocarbon group is a fatty acid such as cyclohexyl. (It may contain a ring structure, a branched structure, or an aromatic ring structure such as phenyl or naphthyl.)

Examples of R ³ include hydrogen, methyl group, ethyl group, propyl group, isopropyl group, n-butyl group, sec-butyl group, tert-butyl group, long-chain aliphatic group, phenyl group, naphthyl group, Examples thereof include a substituted phenyl group, a naphthyl group, and a group represented by —CH ₂ CH ₂ OH.

  Specific phosphorus compounds having at least one P-OH bond of the present invention include ethyl 3,5-di-tert-butyl-4-hydroxybenzylphosphonate, 3,5-di-tert-butyl-4-hydroxy Methyl benzylphosphonate, isopropyl 3,5-di-tert-butyl-4-hydroxybenzylphosphonate, phenyl 3,5-di-tert-butyl-4-hydroxybenzylphosphonate, 3,5-di-tert-butyl Examples include octadecyl -4-hydroxybenzylphosphonate, 3,5-di-tert-butyl-4-hydroxybenzylphosphonic acid, and the like. Of these, ethyl 3,5-di-tert-butyl-4-hydroxybenzylphosphonate and methyl 3,5-di-tert-butyl-4-hydroxybenzylphosphonate are particularly preferred.

  Among the phosphorus compounds having the phenol moiety of the present invention in the same molecule, at least one phosphorus compound selected from specific phosphorus compounds represented by the following general formula (Formula 37) is preferable.

(In the above formula (Chemical Formula 37), R ¹ and R ² each independently represent hydrogen and a hydrocarbon group having 1 to 30 carbon atoms. R ³ and R ⁴ each independently represent hydrogen and carbon atoms having 1 to 50 carbon atoms. Represents a hydrocarbon group having 1 to 50 carbon atoms including a hydrogen group, a hydroxyl group or an alkoxyl group, n represents an integer of 1 or more, and the hydrocarbon group is an alicyclic structure such as cyclohexyl, a branched structure, or an aromatic such as phenyl or naphthyl. It may contain a ring structure.)

  Among the above general formulas (Chemical Formula 37), it is preferable to use at least one selected from the compounds represented by the following General Formula (Chemical Formula 38) because the effect of improving the physical properties of the polyester and the effect of improving the catalytic activity are high.

(In the above formula (Chemical Formula 38), R ³ and R ⁴ each independently represents hydrogen, a hydrocarbon group having 1 to 50 carbon atoms, a hydrocarbon group having 1 to 50 carbon atoms including a hydroxyl group or an alkoxyl group. The group may contain an alicyclic structure such as cyclohexyl, a branched structure, or an aromatic ring structure such as phenyl or naphthyl.)

Examples of R ³ and R ⁴ include short chain aliphatic groups such as hydrogen, methyl and butyl groups, long chain aliphatic groups such as octadecyl, phenyl groups, naphthyl groups, substituted phenyl groups and naphthyl groups. An aromatic group such as a group, a group represented by —CH ₂ CH ₂ OH, and the like.

  Specific phosphorus compounds of the present invention include diisopropyl 3,5-di-tert-butyl-4-hydroxybenzylphosphonate, di-n-butyl 3,5-di-tert-butyl-4-hydroxybenzylphosphonate, Examples include dioctadecyl 3,5-di-tert-butyl-4-hydroxybenzylphosphonate and diphenyl 3,5-di-tert-butyl-4-hydroxybenzylphosphonate. Of these, dioctadecyl 3,5-di-tert-butyl-4-hydroxybenzylphosphonate and diphenyl 3,5-di-tert-butyl-4-hydroxybenzylphosphonate are particularly preferred.

  Among the phosphorus compounds having the phenol moiety of the present invention in the same molecule, a particularly desirable compound in the present invention is at least one phosphorus compound selected from compounds represented by chemical formulas (Chemical Formula 39) and (Chemical Formula 40).

  As the compound represented by the above chemical formula (Chemical Formula 39), Irganox 1222 (manufactured by Ciba Specialty Chemicals) is commercially available, and as the compound represented by the chemical formula (Chemical Formula 40), Irganox 1425 (Ciba Specialty Chemicals) is available. Chemicals) is commercially available and can be used.

  Other phosphorus compounds that are preferably used in the present invention are represented by the following phosphonic acid compounds having a linking group (X) represented by (Chemical Formula 41) or (Chemical Formula 42) or (Chemical Formula 43). Examples thereof include phosphonic acid compounds having no linking group (X).

Embedded image R ¹ —X— (P═O) (OR ² ) (OR ³ )
[In the formula (Chemical Formula 41), R ¹ represents an aromatic ring structure having 6 to 50 carbon atoms or a heterocyclic structure having 4 to 50 carbon atoms, and the aromatic ring structure or the heterocyclic structure may have a substituent. Good. X is a linking group, an aliphatic hydrocarbon having 1 to 10 carbon atoms (which may be linear, branched or alicyclic), or an aliphatic having 1 to 10 carbon atoms containing a substituent. Hydrocarbon (which may be linear, branched or alicyclic), —O—, —OCH ₂ —, —SO ₂ —, —CO—, —COCH ₂ —, —CH ₂ OCO—, It is selected from —NHCO—, —NH—, —NHCONH—, —NHSO ₂ —, —NHC ₃ H ₆ OCH ₂ CH ₂ O—. R ² and R ³ each independently represent a hydrogen atom, a hydrocarbon group having 1 to 20 carbon atoms, a hydrocarbon group having 1 to 20 carbon atoms including a hydroxyl group or an alkoxyl group. The hydrocarbon group may have an alicyclic structure, a branched structure, or an aromatic ring structure. ]

  The substituent of the aromatic ring structure and the heterocyclic structure of the phosphorus compound represented by the formula (Chemical Formula 41) is a hydrocarbon group having 1 to 50 carbon atoms (an alicyclic structure, a branched structure, an aromatic ring even if it is linear) Or a hydroxyl group, a halogen group, a C1-C10 alkoxyl group or an amino group (C1-C10 alkyl or alkanol-substituted). Or nitro group, carboxyl group, aliphatic carboxylic acid ester group having 1 to 10 carbon atoms, formyl group, acyl group, sulfonic acid group, sulfonic acid amide group (alkyl group having 1 to 10 carbon atoms or alkanol substitution) 1 or 2 selected from phosphoryl-containing groups, nitrile groups, and cyanoalkyl groups. More than a seed.

  Examples of the phosphorus compound represented by the formula (Chemical Formula 41) include the following. Specifically, benzylphosphonic acid, benzylphosphonic acid monoethyl ester, 1-naphthylmethylphosphonic acid, 1-naphthylmethylphosphonic acid monoethyl ester, 2-naphthylmethylphosphonic acid, 2-naphthylmethylphosphonic acid monoethyl ester, 4-phenyl, Benzylphosphonic acid, 4-phenyl, benzylphosphonic acid monoethyl ester, 2-phenyl, benzylphosphonic acid, 2-phenyl, benzylphosphonic acid monoethyl ester, 4-chloro, benzylphosphonic acid, 4-chloro, benzylphosphonic acid mono Ethyl ester, 4-chloro, benzylphosphonic acid diethyl ester, 4-methoxy, benzylphosphonic acid, 4-methoxy, benzylphosphonic acid monoethyl ester, 4-methoxy, benzylphosphonic acid diethyl ester, 4-methyl, benzyl Sulphonic acid, 4-methyl, benzylphosphonic acid monoethyl ester, 4-methyl, benzylphosphonic acid diethyl ester, 4-nitro, benzylphosphonic acid, 4-nitro, benzylphosphonic acid monoethyl ester, 4-nitro, benzylphosphonic acid Diethyl ester, 4-amino, benzylphosphonic acid, 4-amino, benzylphosphonic acid monoethyl ester, 4-amino, benzylphosphonic acid diethyl ester, 2-methyl, benzylphosphonic acid, 2-methyl, benzylphosphonic acid monoethyl ester 2-methyl, benzylphosphonic acid diethyl ester, 10-anthranylmethylphosphonic acid, 10-anthranylmethylphosphonic acid monoethyl ester, 10-anthranylmethylphosphonic acid diethyl ester, (4-methoxyphenyl-, ethoxy-) me Ruphosphonic acid, (4-methoxyphenyl-, ethoxy-) methylphosphonic acid monomethyl ester, (4-methoxyphenyl-, ethoxy-) methylphosphonic acid dimethyl ester, (phenyl-, hydroxy-) methylphosphonic acid, (phenyl-, hydroxy-) Methylphosphonic acid monoethyl ester, (phenyl-, hydroxy-) methylphosphonic acid diethyl ester, (phenyl-, chloro-) methylphosphonic acid, (phenyl-, chloro-) methylphosphonic acid monoethyl ester, (phenyl-, chloro-) methylphosphonic acid Diethyl ester, (4-chlorophenyl) -iminophosphonic acid, (4-chlorophenyl) -iminophosphonic acid monoethyl ester, (4-chlorophenyl) -iminophosphonic acid diethyl ester, (4-hydroxyphenyl-, diphenyl-) Tylphosphonic acid, (4-hydroxyphenyl-, diphenyl-) methylphosphonic acid monoethyl ester, (4-hydroxyphenyl-, diphenyl-) methylphosphonic acid diethyl ester, (4-chlorophenyl-, hydroxy-) methylphosphonic acid, (4- Chlorphenyl-, hydroxy-) methylphosphonic acid monomethyl ester, (4-chlorophenyl-, hydroxy-) methylphosphonic acid dimethyl ester, and other phosphorus compounds containing a heterocyclic ring include 2-benzofuranylmethylphosphonic acid diethyl ester, 2 -Benzofuranylmethylphosphonic acid monoethyl ester, 2-benzofuranylmethylphosphonic acid, 2- (5-methyl) benzofuranylmethylphosphonic acid diethyl ester, 2- (5-methyl) benzofuranylmethylphosphonic acid monoe Glycol ester, such as 2- (5-methyl) benzo furanyl methyl phosphonic acid. The phosphorus compound which has said coupling group is a preferable aspect at the point of polymerization activity.

  Other compounds having a linking group (X) that are preferably used in the present invention include phosphorus compounds represented by the formula (Formula 42).

(R 42) (R ⁰ ) _m —R ₁ — (CH ₂ ) _n — (P═O) (OR ² ) (OR ³ )
[In the formula (Chemical Formula 42), R ⁰ represents a hydroxyl group, a C1-C10 alkyl group, —COOH group or —COOR ⁴ (R ⁴ represents a C1-C4 alkyl group), alkylene glycol group or monoalkoxyalkylene. Represents a glycol group (monoalkoxy represents C1-C4, alkylene glycol represents C1-C4 glycol). R ¹ represents an aromatic ring structure such as benzene, naphthalene, biphenyl, diphenyl ether, diphenyl thioether, diphenyl sulfone, diphenyl methane, diphenyl dimethyl methane, diphenyl ketone, anthracene, phenanthrene and pyrene. R ² and R ³ each independently represent a hydrogen atom, a C1-C4 hydrocarbon group, a hydroxyl group or a C1-C4 hydrocarbon group having an alkoxyl group. m represents an integer of 1 to 5, and when R ⁰ is plural, it may be the same substituent or a combination of different substituents. n represents 0 or an integer of 1 to 5. ]

  Among the phosphorus compounds represented by the formula (Formula 42) of the present invention, examples of the phosphorus compounds in which the aromatic ring structure having a substituent is benzene include the following. That is, 2-hydroxybenzylphosphonic acid diethyl ester, 2-hydroxybenzylphosphonic acid monoethyl ester, 2-hydroxybenzylphosphonic acid, 4-hydroxybenzylphosphonic acid diethyl ester, 4-hydroxybenzylphosphonic acid monoethyl ester, 4-hydroxy Benzylphosphonic acid, 6-hydroxybenzylphosphonic acid diethyl ester, 6-hydroxybenzylphosphonic acid monoethyl ester, 6-hydroxybenzylphosphonic acid, and the like include, but are not limited to, benzylphosphonic acids having a hydroxyl group introduced into the benzene ring. It is not a thing.

  Also, 2-n-butylbenzylphosphonic acid diethyl ester, 2-n-butylbenzylphosphonic acid monomethyl ester, 2-n-butylbenzylphosphonic acid, 3-n-butylbenzylphosphonic acid diethyl ester, 3-n-butylbenzyl Phosphonic acid monoethyl ester, 3-n-butylbenzylphosphonic acid, 4-n-butylbenzylphosphonic acid diethyl ester, 4-n-butylbenzylphosphonic acid monoethyl ester, 4-n-butylbenzylphosphonic acid, 2,5 -N-dibutylbenzylphosphonic acid diethyl ester, 2,5-n-dibutylbenzylphosphonic acid monoethyl ester, 2,5-n-dibutylbenzylphosphonic acid, 3,5-n-dibutylbenzylphosphonic acid diethyl ester, 3, 5-n-dibutylbenzylphosphonic acid monoethyl ester, 3,5-n-dibutylben Benzyl phosphonic acids was introduced alkyl benzene ring such as Ruhosuhon acid but not limited thereto.

  Further, 2-carboxybenzylphosphonic acid diethyl ester, 2-carboxybenzylphosphonic acid monoethyl ester, 2-carboxybenzylphosphonic acid, 3-carboxybenzylphosphonic acid diethyl ester, 3-carboxybenzylphosphonic acid monoethyl ester, 3-carboxy Benzylphosphonic acid, 4-carboxybenzylphosphonic acid diethyl ester, 4-carboxybenzylphosphonic acid monoethyl ester, 4-carboxybenzylphosphonic acid, 2,5-dicarboxybenzylphosphonic acid diethyl ester, 2,5-dicarboxybenzylphosphone Acid monoethyl ester, 2,5-dicarboxybenzylphosphonic acid, 3,5-dicarboxybenzylphosphonic acid diethyl ester, 3,5-dicarboxybenzylphosphonic acid Ethyl ester, 3,5-dicarboxybenzylphosphonic acid, 2-methoxycarbonylbenzylphosphonic acid diethyl ester, 2-methoxycarbonylbenzylphosphonic acid monoethyl ester, 2-methoxycarbonylbenzylphosphonic acid, 3-methoxycarbonylbenzylphosphonic acid diethyl Ester, 3-methoxycarbonylbenzylphosphonic acid monoethyl ester, 3-methoxycarbonylbenzylphosphonic acid, 4-methoxycarbonylbenzylphosphonic acid diethyl ester, 4-methoxycarbonylbenzylphosphonic acid monoethyl ester, 4-methoxycarbonylbenzylphosphonic acid, 2,5-dimethoxycarbonylbenzylphosphonic acid diethyl ester, 2,5-dimethoxycarbonylbenzylphosphonic acid monoethyl ester Carboxyl on the benzene ring such as 2,5-dimethoxycarbonylbenzylphosphonic acid, 3,5-dimethoxycarbonylbenzylphosphonic acid diethyl ester, 3,5-dimethoxycarbonylbenzylphosphonic acid monoethyl ester, 3,5-dimethoxycarbonylbenzylphosphonic acid, etc. Benzylphosphonic acids into which a group or a carboxylic acid ester group has been introduced may be mentioned, but the invention is not limited thereto.

  Further, 2- (2-hydroxyethoxy) benzylphosphonic acid diethyl ester, 2- (2-hydroxyethoxy) benzylphosphonic acid monoethyl ester, 2- (2-hydroxyethoxy) benzylphosphonic acid, 3- (2-hydroxyethoxy) ) Benzylphosphonic acid diethyl ester, 3- (2-hydroxyethoxy) benzylphosphonic acid monoethyl ester, 3- (2-hydroxyethoxy) benzylphosphonic acid, 4- (2-hydroxyethoxy) benzylphosphonic acid diethyl ester, 4- (2-hydroxyethoxy) benzylphosphonic acid monoethyl ester, 4- (2-hydroxyethoxy) benzylphosphonic acid, 2,5-di (2-hydroxyethoxy) benzylphosphonic acid diethyl ester, 2,5-di (2- Hydroxyethoxy) benzylphosphonic acid monoethyl Ester, 2,5-di (2-hydroxyethoxy) benzylphosphonic acid, 3,5-di (2-hydroxyethoxy) benzylphosphonic acid diethyl ester, 3,5-di (2-hydroxyethoxy) benzylphosphonic acid monoethyl Ester, 3,5-di (2-hydroxyethoxy) benzylphosphonic acid, 2- (2-methoxyethoxy) benzylphosphonic acid diethyl ester, 2- (2-methoxyethoxy) benzylphosphonic acid monoethyl ester, 1- (2 -Methoxyethoxy) benzylphosphonic acid, 3- (2-methoxyethoxy) benzylphosphonic acid monomethyl ester, 3- (2-methoxyethoxy) benzylphosphonic acid diethyl ester, 3- (2-methoxyethoxy) benzylphosphonic acid monoethyl ester 3- (2-methoxyethoxy) benzylphosphonic acid, 4 (2-methoxyethoxy) benzylphosphonic acid diethyl ester, 4- (2-methoxyethoxy) benzylphosphonic acid monoethyl ester, 4- (2-methoxyethoxy) benzylphosphonic acid, 2,5-di (2-methoxyethoxy) Benzylphosphonic acid diethyl ester, 2,5-di (2-methoxyethoxy) benzylphosphonic acid monoethyl ester, 2,5-di (2-methoxyethoxy) benzylphosphonic acid, 3,5-di (2-methoxyethoxy) Benzenephosphonic acid diethyl ester, 3,5-di (2-methoxyethoxy) benzylphosphonic acid monoethyl ester, 3,5-di (2-methoxyethoxy) benzylphosphonic acid and other benzene rings such as alkylene glycol groups or monoalkoxylation And benzylphosphonic acids introduced with an alkylene glycol group. The

  Among the phosphorus compounds represented by (Chemical Formula 42), the phosphorus compound in which the aromatic ring structure having a substituent is benzene is not limited to the above-mentioned single substituent species. A hybrid of a group, an alkyl group, a carboxyl group, a carboxyester group, a 2-hydroxyethoxy group, and a 2-methoxyethoxy group can also be used.

  Among the phosphorus compounds represented by the formula (Formula 42) of the present invention, examples of the phosphorus compounds having a substituted aromatic ring structure of naphthalene include the following. 1- (5-hydroxy) naphthylmethylphosphonic acid diethyl ester, 1- (5-hydroxy) naphthylmethylphosphonic acid monoethyl ester, 1- (5-hydroxy) naphthylmethylphosphonic acid, 1- (5-hydroxy) naphthylmethylphosphonic acid Diethyl ester, 1- (5-hydroxy) naphthylmethylphosphonic acid monoethyl ester, 1- (5-hydroxy) naphthylmethylphosphonic acid, 1- (5-n-butyl) naphthylmethylphosphonic acid diethyl ester, 1- (5-n- Butyl) naphthylmethylphosphonic acid monoethyl ester, 1- (5-n-butyl) naphthylmethylphosphonic acid, 1- (4-carboxy) naphthylmethylphosphonic acid diethyl ester, 1- (4-carboxy) naphthylmethylphosphonic acid monoethyl ester Ter, 1- (4-carboxy) naphthylmethylphosphonic acid, 1- (4-methoxycarbonyl) naphthylmethylphosphonic acid diethyl ester, 1- (4-methoxycarbonyl) naphthylmethylphosphonic acid monoethyl ester, 1- (4-methoxycarbonyl) Naphthylmethylphosphonic acid, 1- [4- (2-hydroxyethoxy)] naphthylmethylphosphonic acid diethyl ester, 1- [4- (2-hydroxyethoxy)] naphthylmethylphosphonic acid monoethyl ester, 1- [4- (2-hydroxy) Ethoxy)] naphthylmethylphosphonic acid, 1- (4-methoxyethoxy) naphthylmethylphosphonic acid diethyl ester, 1- (4-methoxyethoxy) naphthylmethylphosphonic acid monoethyl ester, 1- (4-methoxyethoxy) naphthylmethylphosphonic acid Acid, 1- (5-hydroxy) naphthylmethylphosphonic acid diethyl ester, 2- (6-hydroxy) naphthylmethylphosphonic acid diethyl ester, 2- (6-hydroxy) naphthylmonoethylphosphonic acid, 2- (6-hydroxy) naphthylmethylphosphonic acid Acid, 2- (6-n-butyl) naphthylmethylphosphonic acid diethyl ester, 2- (6-n-butyl) naphthylmethylphosphonic acid monoethyl ester, 2- (6-n-butyl) naphthylmethylphosphonic acid, 2- (6 -Carboxy) naphthylmethylphosphonic acid diethyl ester, 2- (6-carboxy) naphthylmethylphosphonic acid monoethyl ester, 2- (6-carboxy) naphthylmethylphosphonic acid, 2- (6-methoxycarbonyl) naphthylmethylphosphonic acid diethyl ester, 2- ( 6-methoxycarbonyl) naphthylmethylphosphonic acid monoethyl ester, 2- (6-methoxycarbonyl) naphthylmethylphosphonic acid, 2- [6- (2-hydroxyethoxy)] naphthylmethylphosphonic acid diethyl ester, 2- [6- (2- Hydroxyethoxy)] naphthylmethylphosphonic acid monoethyl ester, 2- [6- (2-hydroxyethoxy)] naphthylmethylphosphonic acid, 2- (6-methoxyethoxy) naphthylmethylphosphonic acid diethyl ester, 2- (6-methoxyethoxy) naphthyl Alkyl group, carboxyl group, carboxylic acid ester group, alkylene glycol group, monoalkoxyalkylene glycol on naphthalene ring such as methylphosphonic acid monoethyl ester and 2- (6-methoxyethoxy) naphthylmethylphosphonic acid Although like phosphonic acids and the like are introduced is not limited thereto.

  Among the phosphorus compounds represented by the formula (Chemical Formula 42), the phosphorus compound in which the aromatic ring structure having a substituent is naphthalene is not limited to the above-mentioned single substituent species. A hybrid of a group, an alkyl group, a carboxyl group, a carboxyester group, a 2-hydroxyethoxy group, and a 2-methoxyethoxy group can also be used.

  Among the phosphorus compounds represented by the formula (Formula 42) of the present invention, examples of the phosphorus compound having a substituted aromatic ring structure of biphenyl include the following. That is, 4- (4-hydroxyphenyl) benzylphosphonic acid diethyl ester, 4- (4-hydroxyphenyl) benzylphosphonic acid monoethyl ester, 4- (4-hydroxyphenyl) benzylphosphonic acid, 4- (4-n- Butylphenyl) benzylphosphonic acid diethyl ester, 4- (4-n-butylphenyl) benzylphosphonic acid monoethyl ester, 4- (4-n-butylphenyl) benzylphosphonic acid, 4- (4-carboxyphenyl) benzylphosphone Acid diethyl ester, 4- (4-carboxyphenyl) benzylphosphonic acid monoethyl ester, 4- (4-carboxyphenyl) benzylphosphonic acid, 4- (4-methoxycarbonylphenyl) benzylphosphonic acid diethyl ester, 4- (4 -Methoxycarbonylph Nyl) benzylphosphonic acid monoethyl ester, 4- (4-methoxycarbonylphenyl) benzylphosphonic acid, 4- (4-hydroxyethoxyphenyl) benzylphosphonic acid diethyl ester, 4- (4-hydroxyethoxyphenyl) benzylphosphonic acid mono Ethyl ester, 4- (4-hydroxyethoxyphenyl) benzylphosphonic acid, 4- (4-methoxyethoxyphenyl) benzylphosphonic acid diethyl ester, 4- (4-methoxyethoxyphenyl) benzylphosphonic acid monoethyl ester, 4- ( 4-methoxyethoxyphenyl) phosphones in which an alkyl group, a carboxyl group, a carboxylic ester group, an alkylene glycol group, a monomethoxyalkylene glycol group or the like is introduced into a biphenyl ring such as benzylphosphonic acid Although s and the like are not limited thereto.

  Among the phosphorus compounds represented by the formula (Chemical Formula 42), the phosphorus compound in which the aromatic ring structure having a substituent is biphenyl is not limited to the above-mentioned single substituent species. A hybrid of a group, an alkyl group, a carboxyl group, a carboxyester group, a 2-hydroxyethoxy group, and a 2-methoxyethoxy group can also be used.

  Among the phosphorus compounds represented by the formula (Formula 42) of the present invention, examples of the phosphorus compounds having an aromatic ring structure having a substituent as diphenyl ether include the following. That is, 4- (4-hydroxyphenyloxy) benzylphosphonic acid diethyl ester, 4- (4-hydroxyphenyloxy) benzylphosphonic acid monoethyl ester, 4- (4-hydroxyphenyloxy) benzylphosphonic acid, 4- (4 -N-butylphenyloxy) benzylphosphonic acid monoethyl ester, 4- (4-n-butylphenyloxy) benzylphosphonic acid monoethyl ester, 4- (4-butylphenyloxy) benzylphosphonic acid, 4- (4- Carboxyphenyloxy) benzylphosphonic acid monoethyl ester, 4- (4-carboxyphenyloxy) benzylphosphonic acid monoethyl ester, 4- (4-carboxyphenyloxy) benzylphosphonic acid, 4- (4-methoxycarbonylphenyloxy) Benji Phosphonic acid monoethyl ester, 4- (4-methoxycarbonylphenyloxy) benzylphosphonic acid monoethyl ester, 4- (4-methoxycarbonylphenyloxy) benzylphosphonic acid, 4- (4-hydroxyethoxyphenyloxy) benzylphosphonic acid Monoethyl ester, 4- (4-hydroxymethoxyphenyloxy) benzylphosphonic acid monoethyl ester, 4- (4-hydroxymethoxyphenyloxy) benzylphosphonic acid, 4- (4-methoxyethoxyphenyloxy) benzylphosphonic acid monoethyl An alkyl group on a diphenyl ether ring such as ester, 4- (4-methoxyethoxyphenyloxy) benzylphosphonic acid monoethyl ester, 4- (4-methoxyethoxyphenyloxy) benzylphosphonic acid, Rubokikishiru group, a carboxylic acid ester group, an alkylene glycol group, and a phosphonic acids like are introduced monomethoxy polyalkylene glycol groups are not limited thereto.

  Among the phosphorus compounds represented by the formula (Chemical Formula 42), the phosphorus compound in which the aromatic ring structure having a substituent is diphenyl ether is not limited to the above-mentioned single substituent species. A hybrid of a group, an alkyl group, a carboxyl group, a carboxyester group, a 2-hydroxyethoxy group, and a 2-methoxyethoxy group can also be used.

  Among the phosphorus compounds represented by the formula (Chemical Formula 42) of the present invention, examples of the phosphorus compounds whose aromatic ring structure having a substituent is diphenythioether include the following. That is, 4- (4-hydroxyphenylthio) benzylphosphonic acid diethyl ester, 4- (4-hydroxyphenylthio) benzylphosphonic acid monoethyl ester, 4- (4-hydroxyphenylthio) benzylphosphonic acid, 4- (4 -N-butylphenylthio) benzylphosphonic acid monoethyl ester, 4- (4-n-butylphenylthio) benzylphosphonic acid monoethyl ester, 4- (4-butylphenylthio) benzylphosphonic acid, 4- (4- Carboxyphenylthio) benzylphosphonic acid monoethyl ester, 4- (4-carboxyphenylthio) benzylphosphonic acid monoethyl ester, 4- (4-carboxyphenylthio) benzylphosphonic acid, 4- (4-methoxycarbonylphenylthio) Benzylphosphonic acid monoethyl Ester, 4- (4-methoxycarbonylphenylthio) benzylphosphonic acid monoethyl ester, 4- (4-methoxycarbonylphenylthio) benzylphosphonic acid, 4- (4-hydroxyethoxyphenylthio) benzylphosphonic acid monoethyl ester, 4- (4-hydroxymethoxyphenylthio) benzylphosphonic acid monoethyl ester, 4- (4-hydroxymethoxyphenylthio) benzylphosphonic acid, 4- (4-methoxyethoxyphenylthio) benzylphosphonic acid monoethyl ester, 4- (4-methoxyethoxyphenylthio) benzylphosphonic acid monoethyl ester, 4- (4-methoxyethoxyphenylthio) benzylphosphonic acid and other diphenylthioether rings have an alkyl group, a carboxyl group, a carboxylic acid ester Group, alkylene glycol group, and a phosphonic acids like are introduced monomethoxy polyalkylene glycol groups are not limited thereto.

  Among the phosphorus compounds represented by the formula (Chemical Formula 42), the phosphorus compound in which the aromatic ring structure having a substituent is diphenylthioether is not limited to the above-mentioned single substituent species. A mixture of a hydroxyl group, an alkyl group, a carboxyl group, a carboxyester group, a 2-hydroxyethoxy group, and a 2-methoxyethoxy group can also be used.

  Among the phosphorus compounds represented by the formula (Formula 42) of the present invention, examples of the phosphorus compounds having a substituted aromatic ring structure of diphenyl sulfone include the following. 4- (4-hydroxyphenylsulfonyl) benzylphosphonic acid diethyl ester, 4- (4-hydroxyphenylsulfonyl) benzylphosphonic acid monoethyl ester, 4- (4-hydroxyphenylsulfonyl) benzylphosphonic acid, 4- (4-n -Butylphenylsulfonyl) benzylphosphonic acid monoethyl ester, 4- (4-n-butylphenylsulfonyl) benzylphosphonic acid monoethyl ester, 4- (4-butylphenylsulfonyl) benzylphosphonic acid, 4- (4-carboxyphenyl) Sulfonyl) benzylphosphonic acid monoethyl ester, 4- (4-carboxyphenylsulfonyl) benzylphosphonic acid monoethyl ester, 4- (4-carboxyphenylsulfonyl) benzylphosphonic acid, 4- (4-methoxycarbo) Ruphenylsulfonyl) benzylphosphonic acid monoethyl ester, 4- (4-methoxycarbonylphenylsulfonyl) benzylphosphonic acid monoethyl ester, 4- (4-methoxycarbonylphenylsulfonyl) benzylphosphonic acid, 4- (4-hydroxyethoxyphenyl) Sulfonyl) benzylphosphonic acid monoethyl ester, 4- (4-hydroxymethoxyphenylsulfonyl) benzylphosphonic acid monoethyl ester, 4- (4-hydroxymethoxyphenylsulfonyl) benzylphosphonic acid, 4- (4-methoxyethoxyphenylsulfonyl) Benzylphosphonic acid monoethyl ester, 4- (4-methoxyethoxyphenylsulfonyl) benzylphosphonic acid monoethyl ester, 4- (4-methoxyethoxyphenylsulfonyl) ) Phosphonic acids in which an alkyl group, carboxyl group, carboxylic acid ester group, alkylene glycol group, monomethoxyalkylene glycol group, etc. are introduced into a diphenylsulfone ring such as benzylphosphonic acid, but are not limited thereto. .

  Among the phosphorus compounds represented by the formula (Chemical Formula 42), the phosphorus compound in which the aromatic ring structure having a substituent is diphenylsulfone is not limited to the above-mentioned single substituent species. A mixture of a hydroxyl group, an alkyl group, a carboxyl group, a carboxyester group, a 2-hydroxyethoxy group, and a 2-methoxyethoxy group can also be used.

  Among the phosphorus compounds represented by the formula (Formula 42) of the present invention, examples of the phosphorus compounds having a substituent aromatic ring structure of diphenylmethane include the following. That is, 4- (4-hydroxybenzyl) benzylphosphonic acid diethyl ester, 4- (4-hydroxybenzyl) benzylphosphonic acid monoethyl ester, 4- (4-hydroxybenzyl) benzylphosphonic acid, 4- (4-n- Butylbenzyl) benzylphosphonic acid monoethyl ester, 4- (4-n-butylbenzyl) benzylphosphonic acid monoethyl ester, 4- (4-butylbenzyl) benzylphosphonic acid, 4- (4-carboxybenzyl) benzylphosphonic acid Monoethyl ester, 4- (4-carboxybenzyl) benzylphosphonic acid monoethyl ester, 4- (4-carboxybenzyl) benzylphosphonic acid, 4- (4-methoxycarbonylbenzyl) benzylphosphonic acid monoethyl ester, 4- ( 4-methoxycarbonyl Benzyl) benzylphosphonic acid monoethyl ester, 4- (4-methoxycarbonylbenzyl) benzylphosphonic acid, 4- (4-hydroxyethoxybenzyl) benzylphosphonic acid monoethyl ester, 4- (4-hydroxymethoxybenzyl) benzylphosphonic acid Monoethyl ester, 4- (4-hydroxymethoxybenzyl) benzylphosphonic acid, 4- (4-methoxyethoxybenzyl) benzylphosphonic acid monoethyl ester, 4- (4-methoxyethoxybenzyl) benzylphosphonic acid monoethyl ester, 4 An alkyl group, a carboxyl group, a carboxylic acid ester group, an alkylene glycol group, a monomethoxyalkylene glycol group or the like is introduced into a diphenylmethane ring such as-(4-methoxyethoxybenzyl) benzylphosphonic acid. And the like phosphonic acids include but are not limited thereto.

  Among the phosphorus compounds represented by the formula (Chemical Formula 42), the phosphorus compound in which the aromatic ring structure having a substituent is diphenylmethane is not limited to the above-mentioned single substituent species. A hybrid of a group, an alkyl group, a carboxyl group, a carboxyester group, a 2-hydroxyethoxy group, and a 2-methoxyethoxy group can also be used.

  Among the phosphorus compounds represented by the formula (Formula 42) of the present invention, examples of the phosphorus compounds having a substituent aromatic ring structure of diphenyldimethylmethane include the following. That is, 4- (4-hydroxyphenyldimethylmethyl) benzylphosphonic acid diethyl ester, 4- (4-hydroxyphenyldimethylmethyl) benzylphosphonic acid monoethyl ester, 4- (4-hydroxyphenyldimethylmethyl) benzylphosphonic acid, 4 -(4-n-butylphenyldimethylmethyl) benzylphosphonic acid monoethyl ester, 4- (4-n-butylphenyldimethylmethyl) benzylphosphonic acid monoethyl ester, 4- (4-butylphenyldimethylmethyl) benzylphosphonic acid 4- (4-carboxyphenyldimethylmethyl) benzylphosphonic acid monoethyl ester, 4- (4-carboxyphenyldimethylmethyl) benzylphosphonic acid monoethyl ester, 4- (4-carboxyphenyldimethylmethyl) Benzylphosphonic acid, 4- (4-methoxycarbonylphenyldimethylmethyl) benzylphosphonic acid monoethyl ester, 4- (4-methoxycarbonylphenyldimethylmethyl) benzylphosphonic acid monoethyl ester, 4- (4-methoxycarbonylphenyldimethylmethyl) ) Benzylphosphonic acid, 4- (4-hydroxyethoxyphenyldimethylmethyl) benzylphosphonic acid monoethyl ester, 4- (4-hydroxymethoxyphenyldimethylmethyl) benzylphosphonic acid monoethyl ester, 4- (4-hydroxymethoxyphenyldimethyl) Methyl) benzylphosphonic acid, 4- (4-methoxyethoxyphenyldimethylmethyl) benzylphosphonic acid monoethyl ester, 4- (4-methoxyethoxyphenyldimethylmethyl) benzene Alkyl groups, carboxyxyl groups, carboxylic acid ester groups, alkylene glycol groups, monomethoxyalkylene glycol groups, etc. were introduced into diphenylmethane rings such as diphosphonic acid monoethyl ester and 4- (4-methoxyethoxyphenyldimethylmethyl) benzylphosphonic acid. Examples thereof include, but are not limited to, phosphonic acids.

  Among the phosphorus compounds represented by the formula (Chemical Formula 42), the phosphorus compound in which the aromatic ring structure having a substituent is diphenyldimethylmethane is not limited to the above-mentioned single substituent species. , A hydroxyl group, an alkyl group, a carboxyl group, a carboxyester group, a 2-hydroxyethoxy group, and a 2-methoxyethoxy group may be used.

  Among the phosphorus compounds represented by the formula (Formula 42) of the present invention, examples of the phosphorus compounds whose aromatic ring structure having a substituent is diphenyl ketone include the following. That is, 4- (4-hydroxybenzoyl) benzylphosphonic acid diethyl ester, 4- (4-hydroxybenzoyl) benzylphosphonic acid monoethyl ester, 4- (4-hydroxybenzoyl) benzylphosphonic acid, 4- (4-n- Butylbenzoyl) benzylphosphonic acid monoethyl ester, 4- (4-n-butylbenzoyl) benzylphosphonic acid monoethyl ester, 4- (4-butylbenzoyl) benzylphosphonic acid, 4- (4-carboxybenzoyl) benzylphosphonic acid Monoethyl ester, 4- (4-carboxybenzoyl) benzylphosphonic acid monoethyl ester, 4- (4-carboxybenzoyl) benzylphosphonic acid, 4- (4-methoxycarbonylbenzoyl) benzylphosphonic acid monoethyl ester, 4- ( 4 Methoxycarbonylbenzoyl) benzylphosphonic acid monoethyl ester, 4- (4-methoxycarbonylbenzoyl) benzylphosphonic acid, 4- (4-hydroxyethoxybenzoyl) benzylphosphonic acid monoethyl ester, 4- (4-hydroxymethoxybenzoyl) benzyl Phosphonic acid monoethyl ester, 4- (4-hydroxymethoxybenzoyl) benzylphosphonic acid, 4- (4-methoxyethoxybenzoyl) benzylphosphonic acid monoethyl ester, 4- (4-methoxyethoxybenzoyl) benzylphosphonic acid monoethyl ester , 4- (4-methoxyethoxybenzoyl) benzylphosphonic acid and the like on an alkyl group, carboxy group, carboxylic acid ester group, alkylene glycol group, monomethoxy group Although such phosphonic acids such as alkylene glycol group is introduced are exemplified but not limited thereto.

  Among the phosphorus compounds represented by the formula (Chemical Formula 42), the phosphorus compound whose aromatic ring structure having a substituent is diphenyl ketone is not limited to the above-mentioned single substituent species. A mixture of a hydroxyl group, an alkyl group, a carboxyl group, a carboxyester group, a 2-hydroxyethoxy group, and a 2-methoxyethoxy group can also be used.

  Among the phosphorus compounds represented by the formula (Chemical Formula 42) of the present invention, examples of the phosphorus compound having an anthracene substituted aromatic ring structure include the following. That is, 9- (10-hydroxy) anthrylmethylphosphonic acid diethyl ester, 9- (10-hydroxy) anthrylmethylphosphonic acid monoethyl ester, 9- (10-hydroxy) anthrylmethylphosphonic acid, 9- (10-n- Butyl) anthrylmethylphosphonic acid diethyl ester, 9- (10-n-butyl) anthrylmethylphosphonic acid monoethyl ester, 9- (10-n-butyl) anthrylylmethylphosphonic acid, 9- (10-carboxy) anthryl Methylphosphonic acid diethyl ester, 9- (10-carboxy) anthrylmethylphosphonic acid monoethyl ester, 9- (10-carboxy) anthrylmethylphosphonic acid, 9- (10-carboxy) 9- (2-hydroxyethoxy) anthrylmethylphosphone Acid di Chill ester, 9- (2-hydroxyethoxy) anthrylmethylphosphonic acid monoethyl ester, 9- (2-hydroxyethoxy) anthrylmethylphosphonic acid, 9- (2-methoxyethoxy) anthrylmethylphosphonic acid diethyl ester, 9- (2 -Methoxyethoxy) anthrylmethylphosphonic acid monoethyl ester, 9- (2-methoxyethoxy) anthrylmethylphosphonic acid, 9- (2-methoxycarbonyl) anthrylmethylphosphonic acid diethyl ester, 9- (2-methoxycarbonyl) anthryl Anthracene rings such as methylphosphonic acid monoethyl ester and 9- (2-methoxycarbonyl) anthrylmethylphosphonic acid have alkyl groups, carboxyxyl groups, carboxylic acid ester groups, alkylene glycol groups, monomethoxy groups. Although such phosphonic acids such as alkylene glycol group is introduced are exemplified but not limited thereto.

  Among the phosphorus compounds represented by the formula (Chemical Formula 42), the phosphorus compound whose aromatic ring structure having a substituent is anthracene is not limited to the above-mentioned single substituent species. A mixture of a group, an alkyl group, a carboxyl group, a carboxyester group, a 2-hydroxyethoxy group, and a 2-methoxyethoxy group can also be used.

  Among the phosphorus compounds represented by the formula (Formula 42) of the present invention, examples of the phosphorus compounds having an aromatic ring structure having a substituent as phenanthrene include the following. 1- (7-n-butyl) phenanthrylmethylphosphonic acid diethyl ester, 1- (7-n-butyl) phenanthrylmethylphosphonic acid monoethyl ester, 1- (7-n-butyl) phenanthrylmethylphosphone Acid, 1- (7-carboxy) phenanthrylmethylphosphonic acid diethyl ester, 1- (7-carboxy) phenanthrylmethylphosphonic acid monoethyl ester, 1- (7-carboxy) phenanthrylmethylphosphonic acid, 1- (7 -Hydroxyethoxy) phenanthrylmethylphosphonic acid diethyl ester, 1- (7-hydroxyethoxy) phenanthrylmethylphosphonic acid monoethyl ester, 1- (7-hydroxyethoxy) phenanthrylmethylphosphonic acid, 1- (7-methoxyethoxy) ) Phenanthryl 1- (7-methoxyethoxy) phenanthrylmethylphosphonic acid monoethyl ester, 1- (7-methoxyethoxy) phenanthrylmethylphosphonic acid, 1- (7-methoxycarbonyl) phenanthrylmethylphosphonic acid diethyl ester Ester, 1- (7-methoxycarbonyl) phenanthrylmethylphosphonic acid monoethyl ester, 1- (7-methoxycarbonyl) phenanthrylmethylphosphonic acid, etc., phenanthrene ring, alkyl group, carboxyl group, carboxylic acid ester group, alkylene glycol Examples thereof include, but are not limited to, phosphonic acids into which a group or a monomethoxyalkylene glycol group has been introduced.

  Among the phosphorus compounds represented by the formula (Chemical Formula 42), the phosphorus compound in which the aromatic ring structure having a substituent is phenanthrene is not limited to the above-mentioned single substituent species. A hybrid of a group, an alkyl group, a carboxyl group, a carboxyester group, a 2-hydroxyethoxy group, and a 2-methoxyethoxy group can also be used.

  Among the phosphorus compounds represented by the formula (Formula 42) of the present invention, examples of the phosphorus compounds having an aromatic ring structure having a substituent as pyrene include the following. 1- (5-hydroxy) pyrenylmethylphosphonic acid diethyl ester, 1- (5-hydroxy) pyrenylmethylphosphonic acid monoethyl ester, 1- (5-hydroxy) pyrenylmethylphosphonic acid, 1- (5-n- Butyl) pyrenylmethylphosphonic acid diethyl ester, 1- (5-n-butyl) pyrenylmethylphosphonic acid monoethyl ester, 1- (5-n-butyl) pyrenylmethylphosphonic acid, 1- (5-carboxy) pyrenyl Methylphosphonic acid diethyl ester, 1- (5-carboxy) pyrenylmethylphosphonic acid monoethyl ester, 1- (5-carboxy) pyrenylmethylphosphonic acid, 1- (5-hydroxyethoxy) pyrenylmethylphosphonic acid diethyl ester, 1- ( 5-hydroxyethoxy) pyrenylmethylphosphonate Ethyl ester, 1- (5-hydroxyethoxy) pyrenylmethylphosphonic acid, 1- (5-methoxyethoxy) pyrenylmethylphosphonic acid diethyl ester, 1- (5-methoxyethoxy) pyrenylmethylphosphonic acid monoethyl ester, 1- ( 5-methoxyethoxy) pyrenylmethylphosphonic acid, 1- (5-methoxycarbonyl) pyrenylmethylphosphonic acid diethyl ester, 1- (5-methoxycarbonyl) pyrenylmethylphosphonic acid monoethyl ester, 1- (5-methoxycarbonyl) Examples include, but are not limited to, phosphonic acids in which an alkyl group, carboxyl group, carboxylic acid ester group, alkylene glycol group, monomethoxyalkylene glycol group, etc. are introduced into a pyrene ring such as pyrenylmethylphosphonic acid. No.

  Among the phosphorus compounds represented by the formula (Chemical Formula 42), the phosphorus compound in which the aromatic ring structure having a substituent is pyrene is not limited to the above-mentioned single substituent species. A hybrid of a group, an alkyl group, a carboxyl group, a carboxyester group, a 2-hydroxyethoxy group, and a 2-methoxyethoxy group can also be used.

  Substituents such as hydroxyl groups, alkyl groups, carboxyl groups, carboxyester groups, 2-hydroxyethoxy groups, 2-methoxyethoxy groups introduced into the series of aromatic rings are complexed with aluminum atoms during polymerization of the polyester. It is estimated to be deeply related to In addition, a carboxyl group or a hydroxyl group that is a functional group at the time of polyester formation is also included, and since it is easily dissolved or taken into the polyester matrix, it is considered to be particularly effective for polymerization activity and foreign matter reduction.

Compared to an unsubstituted group in which R ⁰ is a hydrogen atom bonded to the aromatic ring structure (R ¹ ), the C ¹ -C 10 alkyl group, —COOH group or —COOR ⁴ (R ⁴ is a C 1 -C ⁴ alkyl group) of the present invention. A phosphorus compound substituted with an alkylene glycol group or a monoalkoxyalkylene glycol group (monoalkoxy represents C1 to C4, alkylene glycol represents a C1 to C4 glycol) not only improves the catalytic activity, From the viewpoint of the effect of reducing foreign matter.
Examples of the substituent bonded to the aromatic ring structure include C1-C10 alkyl groups, carboxyl and carboxyl ester groups, alkylene glycols and monoalkoxy alkylene glycols. From the viewpoint of the effect of reducing foreign matter, carboxyl and carboxyl ester groups, alkylene glycols and monoalkoxy alkylene glycols are more preferable. The reason for this is unknown, but it is assumed that the compatibility with the alkylene glycol, which is a medium for the polyester and the catalyst, is improved.

  The phosphorus compound (Chemical Formula 43) having no linking group (X) that is preferably used in the present invention is as follows.

Embedded image R ¹ − (P═O) (OR ² ) (OR ³ )
(R ¹ represents an aromatic ring structure having 6 to 50 carbon atoms or a heterocyclic structure having 4 to 50 carbon atoms, and the aromatic ring structure or the heterocyclic structure may have a substituent. R ² and R ³ Each independently represents a hydrogen atom, a hydrocarbon group having 1 to 20 carbon atoms, a hydroxyl group or an alkoxyl group, and a hydrocarbon group having 1 to 20 carbon atoms, which is an alicyclic structure, branched structure or aromatic ring structure. May be included.)
The substituent of the aromatic ring structure and heterocyclic structure of the phosphorus compound represented by the formula (Chemical Formula 43) is a hydrocarbon group having 1 to 50 carbon atoms (an alicyclic structure, a branched structure, an aromatic ring even if it is linear) Or a hydroxyl group, a halogen group, a C1-C10 alkoxyl group or an amino group (C1-C10 alkyl or alkanol-substituted). Or nitro group, carboxyl group, aliphatic carboxylic acid ester group having 1 to 10 carbon atoms, formyl group, acyl group, sulfonic acid group, sulfonic acid amide group (alkyl group having 1 to 10 carbon atoms or alkanol substitution) 1 type or 2 types selected from phosphoryl-containing groups, nitrile groups, and cyanoalkyl groups. That's it. The aromatic ring structure of (Chemical Formula 43) is selected from benzene, naphthalene, biphenyl, diphenyl ether, diphenyl thioether, diphenyl sulfone, diphenylmethane, diphenyldimethylmethane, anthracene, phenanthrene and pyrene. And the heterocyclic structure is selected from furan, benzofuran, isobenzofuran, dibenzofuran, naphthalane and phthalide. Moreover, it is preferable that at least one of R ² and R ^{3 in} the above formula (Formula 43) is a hydrogen atom.

Examples of the phosphorus compound represented by the formula (Formula 43) that can be used in the present invention include the following phosphorus compounds. That is, (3-nitro, 5-methyl) -phenylphosphonic acid diethyl ester, (3-nitro, 5-methyl) -phenylphosphonic acid monoethyl ester, (3-nitro, 5-methyl) -phenylphosphonic acid, ( 3-nitro, 5-methoxy) -phenylphosphonic acid diethyl ester, (3-nitro, 5-methoxy) -phenylphosphonic acid monoethyl ester, (3-nitro, 5-methoxy) -phenylphosphonic acid, (4-chloro ) -Phenylphosphonic acid diethyl ester, (4-chloro,)-phenylphosphonic acid monoethyl ester, (4-chloro) -phenylphosphonic acid, (5-chloro,)-phenylphosphonic acid diethyl ester, (5-chloro, ) -Phenylphosphonic acid monoethyl ester, (5-chloro,)-phenylphosphonic acid, (3-nitro, 5-methyl) -phenylphos Phosphonic acid diethyl ester, (3-nitro, 5-methyl) -phenylphosphonic acid monoethyl ester, (3-nitro, 5-methyl) -phenylphosphonic acid, (4-nitro) -phenylphosphonic acid diethyl ester, (4 -Nitro) -phenylphosphonic acid monoethyl ester, (4-nitro) -phenylphosphonic acid, (5-nitro) -phenylphosphonic acid diethyl ester, (5-nitro) -phenylphosphonic acid monoethyl ester, (5-nitro) ) -Phenylphosphonic acid, (6-nitro) -phenylphosphonic acid diethyl ester, (6-nitro) -phenylphosphonic acid monoethyl ester, (6-nitro) -phenylphosphonic acid, (4-nitro, 6-methyl) -Phenylphosphonic acid diethyl ester, (4-nitro, 6-methyl) -phenylphosphonic acid monoethyl ester, (4-nitro, 6-methyl)- Phenylphosphonic acid and other phosphorus compounds represented by the formula (Chemical Formula 42), such as benzene, naphthalene, biphenyl, diphenyl ether, diphenylthioether, diphenylsulfone, diphenylmethane, diphenyldimethylmethane, diphenylketone, anthracene, phenanthrene, and pyrene. Each of the structural formulas having an aromatic ring structure has a methylene chain as a linking group, that is, a phosphorus compound group in which —CH ₂ — is removed. Further, as a heterocyclic ring-containing phosphorus compound, 5-benzofuranylphosphonic acid diethyl ester, 5-benzo Furanylphosphonic acid monoethyl ester, 5-benzofuranylphosphonic acid, 5- (2-methyl) benzofuranylphosphonic acid diethyl ester, 5- (2-methyl) benzofuranylphosphonic acid monoethyl ester , 5- (2-methyl) benzofuranylphosphonic acid and the like. The phosphorus compound having no linking group described above may have a slightly lower polymerization activity than the phosphorus compound having the linking group described above, but when the catalyst preparation method of the present invention is used, it is used as a copolymerized polyester polymerization catalyst. It is possible.

  Phosphorus compounds have been known as heat stabilizers for polyesters, but it has not been known so far that even when these compounds are used in combination with conventional metal-containing polyester polymerization catalysts, melt polymerization is greatly promoted. It was. Actually, even if the phosphorus compound of the present invention is added when the polyester is melt-polymerized by using an antimony compound, a titanium compound, a tin compound or a germanium compound, which is a typical catalyst for polyester polymerization, as a polymerization catalyst, it is substantially useful. It is not observed that polymerization is accelerated to a certain level.

  As the usage-amount of the phosphorus compound of this invention, 0.001-2.0 mol% is preferable with respect to the number-of-moles of all the structural units of the polycarboxylic acid component of the copolymer polyester obtained, 0.005-1.0 More preferably, it is mol%. When the addition amount of the phosphorus compound is less than 0.001 mol%, the addition effect may not be exhibited. When the addition amount exceeds 2.0 mol%, the catalytic activity as a copolymerized polyester polymerization catalyst is reduced. The tendency of the reduction varies depending on the amount of aluminum used.

  On the other hand, in the present invention, it is preferable that at least one selected from a small amount of an alkali metal, an alkaline earth metal, and the compound in addition to aluminum or a compound thereof coexists as the second metal-containing component. The coexistence of such a second metal-containing component in the catalyst system increases the catalytic activity, and thus a catalyst component having a higher reaction rate can be obtained, which is effective in improving productivity.

When adding an alkali metal, an alkaline earth metal and a compound thereof, the amount M (mol%) used is 1 × 10 ⁻⁶ or more and 1.0 or more with respect to the number of moles of all polycarboxylic acid units constituting the polyester. It is preferably less than mol%, more preferably 5 × 10 ^{−6 to} 0.5 mol%, still more preferably 1 × 10 ^{−5 to} 0.3 mol%, and particularly preferably 1 × 10 6. ^{-5 to} 0.1 mol%. Since the addition amount of alkali metal and alkaline earth metal is small, it is possible to increase the reaction rate without causing problems such as deterioration of thermal stability, generation of foreign substances, coloring, deterioration of hydrolysis resistance, etc. is there. When the amount M of the alkali metal, alkaline earth metal, or compound thereof is 1.0 mol% or more, the thermal stability is lowered, the generation of foreign matter and coloring, and the hydrolysis resistance are problems in product processing. A case occurs. When M is less than 1 × 10 ⁻⁶ , the effect is not clear even when added.

  In the present invention, the alkali metal or alkaline earth metal constituting the second metal-containing component preferably used in addition to aluminum or a compound thereof includes Li, Na, K, Rb, Cs, Be, Mg, Ca, Sr. , Ba is preferable, and among these, at least one selected from Li, Na, Mg or a compound thereof is more preferable. Examples of the alkali metal and alkaline earth metal compounds include saturated aliphatic carboxylates such as formic acid, acetic acid, propionic acid, butyric acid, and succinic acid, and unsaturated aliphatic carboxylates such as acrylic acid and methacrylic acid. , Aromatic carboxylates such as benzoic acid, halogen-containing carboxylates such as trichloroacetic acid, hydroxycarboxylates such as lactic acid, citric acid and salicylic acid, carbonic acid, sulfuric acid, nitric acid, phosphoric acid, phosphonic acid, hydrogen carbonate, phosphorus Inorganic acid salts such as acid hydrogen, hydrogen sulfide, sulfurous acid, thiosulfuric acid, hydrochloric acid, hydrobromic acid, chloric acid and bromic acid, and organic sulfonates such as 1-propanesulfonic acid, 1-pentanesulfonic acid and naphthalenesulfonic acid , Organic sulfates such as lauryl sulfate, methoxy, ethoxy, n-propoxy, iso-propoxy, n-butoxy, tert-butyl Alkoxides such as alkoxy, chelate compounds and the like acetylacetonate, hydrides, oxides, and hydroxides and the like.

  Among these alkali metals, alkaline earth metals or their compounds, when using strongly alkaline ones such as hydroxides, these tend to be difficult to dissolve in diols such as ethylene glycol or organic solvents such as alcohols. However, it must be added to the polymerization system in an aqueous solution, which may cause a problem in the polymerization process. Furthermore, when a strongly alkaline material such as a hydroxide is used, the polyester is liable to undergo side reactions such as hydrolysis during the polymerization, and the polymerized polyester tends to be colored, and the hydrolysis resistance also decreases. Tend to. Accordingly, the alkali metal or their compounds or alkaline earth metals or their compounds suitable for the present invention are preferably saturated aliphatic carboxylates, unsaturated aliphatic carboxylates, aromatics of alkali metals or alkaline earth metals. Aromatic carboxylates, halogen-containing carboxylates, hydroxycarboxylates, sulfuric acid, nitric acid, phosphoric acid, phosphonic acid, hydrogen phosphate, hydrogen sulfide, sulfurous acid, thiosulfuric acid, hydrochloric acid, hydrobromic acid, chloric acid, bromic acid Selected inorganic acid salts, organic sulfonates, organic sulfates, chelate compounds, and oxides. Among these, from the viewpoint of ease of handling, availability, and the like, it is preferable to use an alkali metal or alkaline earth metal saturated aliphatic carboxylate, particularly acetate.

  The polymerization catalyst of the present invention has other polymerization catalysts such as antimony compounds, germanium compounds, titanium compounds, tin compounds, and the addition of these components causes problems in the products such as polyester characteristics, processability and color tone as described above. Coexistence within the range of the added amount is effective and effective in improving productivity by shortening the polymerization time.

  By using the phosphorus compound of the present invention in combination, a catalyst exhibiting a sufficient catalytic effect can be obtained even when the amount of addition as aluminum in the polyester polymerization catalyst is small.

  Below, the specific example of the preparation method of the solution at the time of using basic aluminum acetate as an aluminum compound is shown.

(1) Preparation example of ethylene glycol solution of aluminum compound Basic aluminum acetate (hydroxyaluminum diacetate; manufactured by Aldrich) was dispersed in distilled water at a concentration of 20 g / l, and heat-treated at 95 ° C. for 2 hours with stirring. And dissolved. An equal amount (volume ratio) of ethylene glycol was charged into the flask together with the aqueous solution, and water was distilled off from the system while stirring at 70 to 90 ° C. under reduced pressure (133 Pa). A glycol solution was prepared.

(2) Preparation Example of Phosphorus Compound in Ethylene Glycol Irganox 1222 (manufactured by Ciba Specialty Chemicals) as a phosphorus compound was charged into a flask together with ethylene glycol and heated at a liquid temperature of 160 ° C. for 12 hours with stirring under nitrogen substitution. An ethylene glycol solution of a phosphorus compound at 30 g / l was prepared.

(3) Preparation example of mixture of ethylene glycol solution of aluminum compound / ethylene glycol solution of phosphorus compound Each ethylene glycol solution obtained in Preparation Example 1 of the aluminum compound and Preparation Example 1 of the phosphorus compound was charged into a flask, A catalyst solution was prepared by mixing at room temperature such that the molar ratio of aluminum atoms and phosphorus atoms was 1: 2, and stirring for 5 hours.

(4) Preparation Example of Ethylene Glycol Solution of Alkali Metal Compound Lithium acetate (manufactured by Nacalai Co., Ltd., reagent special grade) was charged as an alkali metal compound into a flask together with ethylene glycol, and an alkali of 30 g / l at room temperature with stirring under nitrogen substitution. An ethylene glycol solution of a metal compound was prepared.

  As another embodiment of the polymerization catalyst of the present invention, an ethylene glycol solution of the above aluminum compound / an ethylene glycol solution of a phosphorus compound can be used in combination with an ethylene glycol solution of an alkali metal compound and / or an alkaline earth metal. Needless to say.

  The resin acid value in the copolymerized polyester resin of the present invention is 3 to 110 mgKOH / g, preferably 4 to 105 mgKOH / g, more preferably 5 to 100 mgKOH / g, and further preferably 6 to 95 mgKOH / g. When the resin acid value is less than 3 mgKOH / g, the dispersion stability is deteriorated. On the other hand, when it is 110 mgKOH / g or more, the water resistance of the coating film obtained from the resin dispersion is deteriorated and cannot be practically used.

  Of the functional groups showing the acid value of the copolymerized polyester resin of the present invention, the carboxyl group and / or sulfonic acid group is 80% or more, preferably 85% or more, more preferably 90% or more, and still more preferably 95% or more. is there. When the carboxyl group and / or carboxylic acid group is less than 80%, when more than 20% of the functional group exhibiting the acid value is a phosphoric acid group or a phenolic hydroxyl group, the temporal stability of the aqueous dispersion is deteriorated or colored. May not cause practical use.

  As the polyester used in the present invention, various raw materials can be used as long as they are within the above range.

  Examples of the polyvalent carboxylic acid component of the copolyester resin include aromatic dicarboxylic acids such as terephthalic acid, isophthalic acid, orthophthalic acid, and naphthalenedicarboxylic acid, succinic acid, glutaric acid, adipic acid, azelaic acid, sebacic acid, and dodecanedione. Aliphatic dicarboxylic acids such as acids and dimer acids, unsaturated dicarboxylic acids such as (anhydrous) maleic acid, fumaric acid and terpene-maleic acid adducts, 1,4-cyclohexanedicarboxylic acid, tetrahydrophthalic acid, hexahydroisophthalic acid, Examples thereof include alicyclic dicarboxylic acids such as 1,2-cyclohexene dicarboxylic acid, trivalent or higher carboxylic acids such as (anhydrous) trimellitic acid, (anhydrous) pyromellitic acid, and methylcyclohexentricarboxylic acid. Species or two or more can be selected and used.

  Examples of the polyalcohol component used in the copolyester resin used in the present invention include ethylene glycol, propylene glycol (1,2-propanediol), 1,3-propanediol, 1,4-butanediol, 1,2- Butanediol, 1,3-butanediol, 2-methyl-1,3-propanediol, neopentyl glycol, 1,5-pentanediol, 1,6-hexanediol, 3-methyl-1,5-pentanediol, 2-ethyl-2-butyl-1,3-propanediol, 2,4-diethyl-1,5-pentanediol, 1-methyl-1,8-octanediol, 3-methyl-1,6-hexanediol, 4-methyl-1,7-heptanediol, 4-methyl-1,8-octanediol, 4-propyl-1,8-o Aliphatic glycols such as tandiol, 1,9-nonanediol, ether glycols such as diethylene glycol, triethylene glycol, polyethylene glycol, polypropylene glycol, polytetramethylene glycol, 1,4-cyclohexanedimethanol, 1,3-cyclohexanedi Examples include alicyclic polyalcohols such as methanol, 1,2-cyclohexanedimethanol, tricyclodecane glycols, and hydrogenated bisphenols, and trihydric or higher polyalcohols such as trimethylolpropane, trimethylolethane, and pentaerythritol. One or more of these can be selected and used.

  When introducing the sulfonate group into the molecule, for example, 5-Na sulfoisophthalic acid, 5-ammonium sulfoisophthalic acid, 4-Na sulfoisophthalic acid, 4-methylammonium sulfoisophthalic acid, 2-Na sulfoterephthalic acid, 5 -K sulfoisophthalic acid, 4-K sulfoisophthalic acid, 2-K sulfoisophthalic acid, sulfonic acid alkali metal salt compounds such as Na sulfosuccinic acid or sulfonic acid amine salt compounds, sulfonic acid Na salt-containing bisphenol A-alkylene oxide addition Products, sulfonic acid K base-containing hydroquinone alkylene oxide adducts, and the like.

  When introducing a phenolic hydroxyl group into the molecule, for example, 5-hydroxyisophthalic acid, diphenolic acid or the like can be copolymerized.

  The method for introducing a carboxyl group is as follows: after polymerization of the polyester resin, under atmospheric pressure and nitrogen atmosphere, trimellitic anhydride, phthalic anhydride, pyromellitic anhydride, succinic anhydride, 1,8-naphthalic anhydride, 1, 2-cyclohexanedicarboxylic acid, cyclohexane-1,2,3,4-tetracarboxylic acid-3,4-anhydride, ethylene glycol bisanhydro trimellitate, 5- (2,5-dioxotetrahydro-3-furanyl ) -3-Methyl-3-cyclohexene-1,2-dicarboxylic anhydride, naphthalene 1,8: 4,5-tetracarboxylic dianhydride, etc. These acid anhydrides are introduced into a method for imparting an acid value and those in an oligomer state before the polyester is made to have a high molecular weight, and then subjected to high condensation by polycondensation under reduced pressure. By capacity, there is a method of introducing an acid value in polyester. In this case, the former method is preferable because the target acid value is easily obtained.

  Further, during polyester polymerization, tertiary amines such as triethylamine, tri-n-butylamine and benzyldimethylamine, quaternary hydroxides such as tetraethylammonium hydroxide, tetra-n-butylammonium hydroxide and trimethylbenzylammonium hydroxide are used. It is preferable to add a small amount of a basic compound such as ammonium and lithium carbonate, sodium carbonate, potassium carbonate, or sodium acetate because the generation of a condensate between glycol components can be kept low.

  When preparing an aqueous dispersion of a polyester resin into which carboxyl groups have been introduced, in order to stabilize the dispersed fine particles, polar groups such as carboxyl groups on the surface of the particles are partly or entirely covered with a basic substance. It is preferable to neutralize.

  Here, as basic substances that can be used for neutralization, amines typified by ammonia and triethylamine, or inorganic bases typified by sodium hydroxide, potassium hydroxide, lithium hydroxide and the like can be used. is there. In consideration of the volatility problem and, conversely, the problem of remaining in the coating film when it is formed into a coating film, it may be selected according to the application.

  Examples of volatile amines include only typical ones: ammonia, monomethylamine, dimethylamine, trimethylamine, monoethylamine, diethylamine, triethylamine, mono-n-propylamine, dimethyl n-propylamine, mono Ethanolamine, diethanolamine or triethanolamine, N-methylethanolamine, N-aminoethylethanolamine, N-methyldiethanolamine, monoisopropanolamine, diisopropanolamine, triisopropanolamine, N, N-dimethylethanolamine or N And various amines such as N-dimethylpropanolamine. Particularly preferred are triethylamine, N, N-dimethylethanolamine, N, N-dimethylpropanolamine and the like. Moreover, it does not prevent the combined use of two or more selected from these organic basic compounds.

  As a method for producing the aqueous dispersion, a known method can be used. For example, after dissolving in a high boiling point organic solvent such as butyl cellosolve, warm water can be added and dispersed in water. Further, it can be directly dissolved / dispersed in a mixed solvent of water such as butyl cellosolve, methyl ethyl ketone, isopropyl alcohol and water. Further, in a system in which a solvent having a boiling point lower than that of water is used for dissolution / dispersion, a completely aqueous aqueous dispersion can be obtained by distilling off the organic solvent.

  Also, a copolymer melt is prepared by melt-kneading a copolymerized polyester resin and, if necessary, a water retention agent, a dispersion aid, etc. using a pressure kneader, a heated three roll, twin screw extruder kneader, etc. Examples include a production method in which the polyester resin is heated to a temperature equal to or higher than the melting temperature of the polyester resin, and dispersed in a heated aqueous medium containing a basic compound in a molten state by mechanical means under pressure as necessary.

  The neutralization of the carboxyl group is not limited to this method. For example, after neutralizing the carboxyl group with a basic compound, the resin melt is dispersed in an aqueous medium by mechanical means, Alternatively, the resin melt may be dispersed in an aqueous medium by mechanical means and then neutralized by adding a basic compound with stirring.

  The aqueous medium may be pressurized as necessary during heating. When the melting temperature of the resin melt is low, it is not always necessary to pressurize, but when the melting temperature is 100 ° C. or higher, it is necessary to pressurize so that the aqueous medium does not boil.

  Examples of the organic solvent used in the present invention include n-butanol, isopropyl alcohol, diacetone alcohol, 2-ethylhexanol, methyl ethyl ketone, acetonitrile, dimethylacetamide, dimethylformamide, n-methylpyrrolidone, tetrahydrofuran, 1,4-dioxane, Amphiphilic solvents such as 1,3-oxolane, methyl solosolve, ethyl solosolve, butyl cellosolve, ethyl carbitol, butyl carbitol, propylene glycol monopropyl ether, propylene glycol monoptyl ether may be used as necessary. .

  Of these, isopropyl alcohol, butyl cellosolve, propylene glycol monopropyl ether, propylene glycol monobutyl ether, and butyl carbitol are particularly preferable. In addition, when producing a completely water-based polyester resin aqueous dispersion in which no solvent other than water is used as the organic solvent, the aqueous dispersion is heated above the boiling point of the organic solvent to volatilize and remove the organic solvent. It is necessary to use organic solvents. Otherwise, these organic solvents may be contained in the polyester resin aqueous dispersion.

  The aqueous dispersion obtained by the present invention can be adjusted to a viscosity and viscosity suitable for workability by using various thickeners. In view of the stability of the system due to the addition of a thickener, anionic ones such as methylcellulose, polyalkylene glycol derivative nonionic, polyacrylate and alginate are preferred.

  The aqueous dispersion obtained by the present invention can further improve applicability by using various surface tension modifiers. The addition amount is preferably 1 wt% or less, more preferably 0.5 wt%, with respect to the resin from the viewpoint of the stability of the aqueous dispersion.

  The aqueous dispersion obtained by the present invention is a known inorganic pigment such as titanium oxide and silica, various dyes, a surface smoothing agent, an antifoaming agent, an antioxidant, a dispersion during the production or in the obtained aqueous dispersion. You may mix | blend well-known additives, such as an agent and a lubricant.

  Various ultraviolet absorbers, antioxidants, and light stabilizers can be added to the aqueous dispersion obtained by the present invention depending on the application. As the ultraviolet absorber, various organic types such as benzotriazole, benzophenone, and triazine, and inorganic types such as zinc oxide can be used. As the antioxidant, hindered phenols, phenothiazines, nickel compounds and the like generally used for polymers and various types can be used. Various light stabilizers for polymers can be used, but hindered amines are particularly effective.

  Hereinafter, the present invention will be described in more detail with reference to examples. The physical property values of the copolymer polyester resin and the polyester resin aqueous dispersion were measured by the following methods.

1. Composition of Copolyester Resin Copolymerized polyester resin was subjected to ¹ H-NMR analysis using a nuclear magnetic resonance analyzer (NMR) Gemini-200 manufactured by Varian in a deuterated chloroform solvent and determined from its integration ratio. The copolyester resin was subjected to a measurement after breaking the vacuum under a nitrogen atmosphere after completion of the polycondensation reaction and taking out a small amount of the resulting molten copolyester resin from the reaction kettle after depressurization. .

2. Glass transition temperature of copolymerized polyester resin 5 mg of the polyester resin sample obtained as described above was sealed in an aluminum sample pan, and a differential scanning calorimeter (DSC) DSC-220 manufactured by Seiko Instruments Inc. was used. The temperature was measured up to 200 ° C. at a rate of temperature increase of 20 ° C./min, and the temperature was determined by the temperature at the intersection of the extended line of the base line below the glass transition temperature and the tangent indicating the maximum slope at the transition portion.

3. Reduced Viscosity of Copolyester Resin 0.10 g of copolyester resin was dissolved in 25 cm ³ of a mixed solvent of phenol / tetrachloroethane (mass ratio 6/4) and measured at 30 ° C. using an Ubbelohde viscosity tube.

4). Measurement of acid value (1) Carboxyl group, phenolic hydroxyl group 0.2 g of polyester was dissolved in 20 ml of chloroform, titrated with 0.1N KOH ethanol solution, and the color change point of phenolphthalein solution was used as the neutralization point. Value was determined (mgKOH / g)
(2) Sulfonic acid group The sulfur atom concentration in the polyester was determined by atomic absorption spectrometry, and 100% of the concentration was derived from the sulfonic acid group, and the sulfonic acid value (mgKOH / g) was used.
The acid value of the resin was calculated as the total amount of (1) carboxyl group, phenolic hydroxyl group and (2) sulfonic acid group (mgKOH / g).

5. Method for evaluating aluminum-based foreign matter insoluble in copolymer polyester resin 30 g of copolymer polyester resin after melt polymerization and 300 ml of a mixed solution of parachlorophenol / tetrachloroethane (3/1: weight ratio) are put into a round bottom flask equipped with a stirrer. The resin was stirred and dissolved in the mixed solution at 100 to 105 ° C. for 2 hours. The solution was allowed to cool to room temperature, and a polytetrafluoroethylene membrane filter (Advantec PTFE membrane filter, product name: T100A047A) having a diameter of 47 mm / pore size of 1.0 μm was used, and the total amount was under a pressure of 0.15 MPa. The foreign matter was filtered off with an effective filtration diameter of 37.5 mm.

The foreign matter evaluation was performed by filtration time as follows.
◯: Filtration time less than 5 hours Δ: Filtration time 5 hours to 24 hours ×: Filtration time more than 1 day When the filtration time exceeds 1 day, the content of fine foreign substances insoluble in the copolymerized polyester resin increases. This is not preferable because it leads to a problem that the filter clogging at the time of filtration of the copolymerized polyester resin in the polymerization process and the molding process increases. Moreover, it leads to the adhesive defect etc. accompanying the wettability fall to a to-be-adhered body, and is unpreferable.

6). Degree of appearance coloring of copolyester resin The copolyester resin was visually judged as it was in the form of a plate having almost the same thickness.
○: Almost not colored △: Slightly colored ×: Remarkably colored

7). Aqueous dispersion stability The prepared aqueous dispersion was allowed to stand at room temperature for 1 week and visually judged.
○: Almost no precipitate △: Slightly precipitated ×: Many precipitates

8). Water resistance of coating film Prepared resin water dispersion is applied on PET film. Drying was performed with a hot air dryer at 120 ° C. for 2 hours to obtain a resin layer having a thickness of about 10 μm. The resin together with the PET film was allowed to stand in water at 25 ° C. for 4 hours, and the change in the resin layer was observed and judged.
○: Almost no change is seen in the resin layer △: Slight swelling of the resin layer is seen ×: Dissolution of the resin layer is seen

(Example 1) Synthesis example of the resin of the present invention: (A)
Ethylene glycol diester of terephthalic acid, isophthalic acid, 5-sodiumsulfoisophthalic acid, glycol component as acid components so that each component mol% shown in Table 1 is contained in a stainless steel reaction kettle equipped with a stirrer, condenser and thermometer As a polymerization catalyst solution consisting of a preparation example of a mixture of ethylene glycol, neopentyl glycol, ethylene glycol solution of aluminum compound / ethylene glycol solution of phosphorus compound, triethylamine is 0 with respect to all acid components to suppress condensates of glycols. .Esterification reaction was carried out at 150 ° C. to 220 ° C. under nitrogen, and then gradually reduced in pressure while heating to 260 ° C., and reduced to 13.3 Pa in 60 minutes. Copolymerized polyester (A) polymerized for 1 hour Got. Table 1 shows the composition and characteristic values of the obtained copolymer polyester.

Production Example of Resin Water Dispersion 100 parts by weight of copolyester resin A, 120 parts by weight of methyl ethyl ketone, 30 parts by weight of 2-propanol, and 10 parts by weight of water were charged into a reaction can equipped with a stirrer, a condenser and a thermometer at 50 rpm. While stirring, the temperature was raised to 70 ° C. The resin was completely dissolved by further stirring for 3 hours. Thereto, 300 parts by weight of warm water at 70 ° C. was added to prepare an aqueous dispersion, and the temperature inside the container was gradually raised to distill away the organic solvent. The residual solvent was measured by gas chromatography and found to be 0.08 wt%. The internal temperature of the reaction can was cooled to room temperature, and further filtered through a 200 mesh filter to obtain a resin water dispersion A.

(Examples 2 and 3) (Comparative Examples 1 to 3)
The resin / water dispersions (B) and (C) of the present invention using the respective polymerization catalyst species and the comparative resin / water dispersion (D) in accordance with the synthesis of the copolymer polyester resin (A) of the present invention. , (E), (F) were obtained. Table 1 shows the composition and characteristic values of each of the obtained copolymer polyester resins.
In the case of the aluminum compound single catalyst (C), the polymerization activity was slightly lower than that of the composite systems (A) and (B), and a good appearance with little coloration was exhibited except that there were a few foreign substances. The antimony polymerization catalyst (D) was cloudy in addition to coloring. The titanium-based catalyst (E) is remarkably colored in the obtained resin, and the tin-based polymerization catalyst (F) is relatively less colored. However, like the antimony-based polymerization catalyst, a polyester not containing these is desired. ing.

(Example 4) Synthesis example of resin of the present invention: (G)
In a stainless steel reaction kettle equipped with a stirrer, condenser, and thermometer, terephthalic acid, isophthalic acid, trimellitic acid as acid components so as to have mol% of each component described in Table 1, ethylene glycol, neopentyl glycol as glycol components, The polymerization catalyst solution which consists of the preparation example of the mixture of the ethylene glycol solution of the aluminum compound of Table 2, and the ethylene glycol solution of a phosphorus compound was prepared, and after esterifying at 150 degreeC-220 degreeC under nitrogen, then to 240 degreeC While heating, the pressure was gradually reduced to 13.3 Pa in 60 minutes. Furthermore, the system was kept at 220 ° C., the vacuum was broken with nitrogen gas, a predetermined trimellitic anhydride and ethylene glycol bisanhydride trimellitate were added under a nitrogen atmosphere, and the mixture was stirred for 30 minutes to obtain polyester G. Table 2 shows the composition and characteristic values of the obtained copolyester.

Production Example of Resin Water Dispersion 100 parts by weight of copolyester resin G and 120 parts by weight of methyl ethyl ketone were charged into a reaction can equipped with a stirrer, a condenser and a thermometer, and the temperature was raised to 70 ° C. while stirring at 50 rpm. The resin was completely dissolved by further stirring for 3 hours. Thereto, 30 parts by weight of 2-propanol, 25 parts of triethylamine, and 300 parts by weight of warm water of 70 ° C. were added to prepare an aqueous dispersion. Further, the temperature inside the container was gradually raised, and the organic solvent was distilled off. . It was 1.2 wt% when the residual solvent was measured by the gas chromatography method. The internal temperature of the reaction can was cooled to room temperature and further filtered through a 200 mesh filter to obtain a resin water dispersion G.

(Examples 5 to 9) (Comparative Examples 4 to 6)
Resin and comparative resins (H) to (O) of the present invention were synthesized and obtained in the same manner as in Example 4 except that various monomers shown in Tables 2 and 3 were used instead of the monomers used in Example 4. The compositions and characteristic values of the resins obtained are shown in Tables 2 and 3.

Water dispersion production example H
100 parts by weight of copolyester resin H, 100 parts by weight of isopropyl alcohol, 115 parts by weight of ion-exchanged water, and 3 parts by weight of aqueous ammonia (28%) were charged into a reaction can equipped with a stirrer, a condenser and a thermometer and stirred at 50 rpm. The temperature was raised to 70 ° C. By further stirring for 3 hours, the resin was completely dispersed. The internal temperature of the reaction can was cooled to room temperature, and further filtered through a 200 mesh filter to obtain a resin water dispersion H.

Water dispersion production example I
100 parts by weight of copolyester resin I, 60 parts by weight of isopropyl alcohol, 7.8 parts by weight of triethylamine, and 170 parts by weight of ion-exchanged water are charged into a sealed glass container (manufactured by PRIMIX Corporation, TK Robotics). The mixture was stirred at 7000 ppm using a homodisper. The temperature was gradually raised and stirring was continued at 70 ° C. for 30 minutes. Thereafter, the stirring speed was lowered to 3500 ppm, the mixture was cooled to room temperature, and filtered through a 300 mesh filter, to obtain a resin water dispersion I.

Water dispersion production example J
100 parts by weight of copolyester resin J, 60 parts by weight of isopropyl alcohol, 4 parts by weight of ammonia water (28%), and 170 parts by weight of ion-exchanged water were sealed in a glass container (manufactured by Primics Co., Ltd., TK Robotics). The mixture was stirred at 7000 ppm using a homodisper. The temperature was gradually raised and stirring was continued at 70 ° C. for 30 minutes. Thereafter, the stirring speed was lowered to 3500 ppm, the mixture was cooled to room temperature, and filtered through a 300 mesh filter, to obtain a resin water dispersion J.

Water dispersion production example K
100 parts by weight of copolymerized polyester resin K is melt-kneaded at 150 ° C. using a twin-screw extruder kneader to produce a resin melt, and a liquid comprising 30 parts by weight of triethanolamine and 300 parts by weight of distilled water is gradually added. While kneading, an aqueous dispersion was obtained, further cooled to room temperature, and then filtered through a 200 mesh filter to obtain an aqueous resin dispersion K.

Water dispersion production example L
100 parts by weight of copolyester resin L, 20 parts by weight of normal butyl cellosolve, and 20 parts by weight of triethanolamine were charged into a reaction vessel equipped with a stirrer, a condenser and a thermometer, and the temperature was raised to 130 ° C. while stirring at 50 rpm. By further stirring for 30 minutes, the resin was completely dispersed. The reaction vessel internal temperature was cooled to 90 ° C, 200 parts by weight of ion-exchanged water at 80 ° C was added, stirred for 1 hour, cooled to room temperature, and further filtered through a 200 mesh filter to obtain resin water dispersion L. Obtained.

Water dispersion production examples M, N, O
It was produced by the same method as that for producing the aqueous dispersion G.

  Resin M of Comparative Example 4 has an acid value smaller than 3 mgKOH / g, and the resin is dispersed in water during production, but the stability over time cannot be maintained. On the other hand, the resin N of Comparative Example 5 has an acid value greater than 110 mgKOH / g, and the aqueous dispersion can be produced stably, but the resulting coating film is not water resistant and is not suitable for practical use. Further, the resin O of Comparative Example 6 has a large amount due to the phenolic hydroxyl group in the resin acid value, and the resin itself, in particular, the coating film obtained by drying from water once is highly colored. This will reduce the good hue of the resin.

From the above results, the copolyester resin of the present invention and the aqueous dispersion thereof do not contain heavy metals and tin, and have a good appearance with less coloring compared to copolyesters using conventional antimony or titanium-based polymerization catalysts. showed that. Furthermore, it was found that the obtained coating film was excellent in water resistance. These water-dispersed polyester resin dispersions of the present invention exhibit excellent characteristics in aqueous adhesives, aqueous coating agents, aqueous paint compositions and the like.

Claims (11)

  A polyester resin aqueous dispersion comprising a copolymerized polyester resin having a resin acid value of 3 to 110 mgKOH / g, which is produced in the presence of a polymerization catalyst containing at least an aluminum compound.   2. The polyester resin aqueous dispersion according to claim 1, wherein 80% or more of the resin acid value is derived from a carboxyl group and / or a sulfone group.   The polyester resin aqueous dispersion according to claim 1, wherein the polymerization catalyst comprises at least one selected from the group consisting of aluminum compounds and at least one selected from phosphorus compounds.   3. The polyester resin aqueous dispersion according to claim 1, wherein the polymerization catalyst comprises at least one selected from the group consisting of aluminum compounds and an alkali metal and / or an alkaline earth metal. 4. .   The polyester resin aqueous dispersion according to any one of claims 1 to 4, wherein the aluminum compound is a carboxylic acid-containing compound.   The polyester resin aqueous dispersion according to claim 3 or 5, wherein the phosphorus compound is at least one selected from the group consisting of aromatic phosphonic acids and derivatives thereof.   The polyester resin aqueous dispersion according to any one of claims 4 to 6, wherein the alkali metal and alkaline earth metal are at least one selected from Li, Na, Mg or a compound thereof.   The polyester resin aqueous dispersion according to any one of claims 1 to 7, wherein an aluminum-based foreign substance insoluble in the copolymerized polyester resin is less than 5 hours when measured by the method described in the specification.   The water-based adhesive using the polyester resin aqueous dispersion according to any one of claims 1 to 8, wherein the adherend is one of a film, a cloth, and a metal.   The aqueous coating agent using the polyester resin aqueous dispersion in any one of Claims 1-8. A water-based paint using the polyester resin aqueous dispersion according to any one of claims 1 to 8.