JPH11222493A - Stabilizer composition, its production and its use - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain the subject composition having excellent performances for the stabilization of various kinds of organic materials including thermoplastic resins such as polyolefins by compounding a specific phosphite ester with one or more kinds of stabilizers selected from phenolic stabilizers, etc. SOLUTION: This stabilizer composition comprises (A) a phosphite ester of the formula (R<1> , R<2> , R<4> and R<5> are each H or the like; R<3> is H or the like; X is a bond or the like; A is a 2-8C alkylene or the like; one of Y and Z is OH or the like, and the other is H or the like) for example, 2,4,8,10-tetra-t- butyl-6-[3-(3-methyl-4-hydroxy-5-t-butylphenyl)propoxy]dibenzo[d, f][1,3,2]dioxasphosphepin} and (B) one or more kinds of stabilizers selected from phenolic, sulfurous, phosphorous and hindered amine stabilizers in a weight ratio of 10:1 to 1:20.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a novel phosphite and at least one stabilizer selected from the group consisting of phenol stabilizers, sulfur stabilizers, phosphorus stabilizers and hindered amine stabilizers. The present invention relates to a stabilizer composition, a method for producing the same, and a use thereof.

[0002]

2. Description of the Related Art Organic materials such as thermoplastic resins, thermosetting resins, natural or synthetic rubbers, mineral oils, lubricating oils, adhesives, paints and the like are used during production, processing and further use. Occasionally, it is degraded by the action of heat, oxygen, light, etc., resulting in a decrease in strength physical properties of organic materials due to phenomena such as molecular cutting and molecular cross-linking, a change in flowability, coloring, a decrease in surface physical properties, etc. It is known to be severely impaired. For the purpose of solving such problems such as heat and oxidative deterioration, conventionally, a stabilizer such as a phenol stabilizer, a sulfur stabilizer, a phosphorus stabilizer, a hindered amine stabilizer is used in combination with a phosphorus stabilizer. Thus, a method for stabilizing an organic material is known.

[0003] For example, tris (2,4-di-t-butylphenyl) phosphite has been added to 2,6-di-t-butyl-4-methylphenol, n-octadecyl 3- (3,5-di-t-butyl). -Butyl stabilizers such as butyl-4-hydroxyphenyl) propionate, neopentanetetrayltetrakis (3,5-di-t-butyl-4-hydroxydihydrocinnamate) or dilauryl 3,3'-thiodipro Method of using a sulfur-based stabilizer such as pionate (Japanese Patent Publication No. 56-5417,
No. 62-4418) is known. However, the combination method using these known phosphorus-based stabilizers has a problem that the stabilizing effect is insufficient, and development of a more excellent stabilizer composition has been demanded.

The present inventors have produced various phosphorus compounds in order to develop a stabilizer composition exhibiting a more excellent stabilizing effect, and as a result of intensive studies, as a result, as a phosphorus compound, a specific cyclic compound was obtained. The present inventors have found that a stabilizer composition using a phosphite exhibits an excellent stabilizing effect, and completed the present invention.

[0005]

That is, the present invention provides a compound represented by the general formula (I):

[0006]

(Wherein R ¹ , R ² , R ⁴ and R ⁵ are each independently a hydrogen atom, an alkyl group having 1 to 8 carbon atoms,
Cycloalkyl group having 5 to 8 carbon atoms, alkylcycloalkyl group having 6 to 12 carbon atoms, an aralkyl group or a phenyl group having 7 to 12 carbon atoms, R ³ is hydrogen or C 1 -C
To 8 alkyl groups. X is a mere bond, a sulfur atom or a —CHR ⁶ — group (R ⁶ is a hydrogen atom,
Represents an alkyl group or a cycloalkyl group having 5 to 8 carbon atoms). A is an alkylene group having 2 to 8 carbon atoms or *-
Represents a COR ⁷ -group (R ⁷ is a mere bond or an alkylene group having 1 to 8 carbon atoms, and * indicates that it is bonded to the oxygen side). One of Y and Z represents a hydroxy group, an alkoxy group having 1 to 8 carbon atoms or an aralkyloxy group having 7 to 12 carbon atoms, and the other represents a hydrogen atom or an alkyl group having 1 to 8 carbon atoms. )

And a phosphite and at least one stabilizer selected from the group consisting of phenol stabilizers, sulfur stabilizers, phosphorus stabilizers and hindered amine stabilizers. An object of the present invention is to provide a stabilizer composition, a method for producing the same, and a use thereof.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail. In the phosphites represented by the formula (I) of the present invention, the substituents R ¹ , R ² , R ⁴ and R ⁵ each independently represent a hydrogen atom, an alkyl group having 1 to 8 carbon atoms and ⁵ carbon atoms. Represents a cycloalkyl group having 8 to 8 carbon atoms, an alkylcycloalkyl group having 6 to 12 carbon atoms, an aralkyl group having 7 to 12 carbon atoms, or a phenyl group. R ¹ , R ² and R ^{4 each} have 1 carbon atom
Alkyl group of 8 to 8, cycloalkyl group of 5 to 8 carbon atoms,
It is preferably an alkylcycloalkyl group having 6 to 12 carbon atoms, and R ⁵ is preferably a hydrogen atom, an alkyl group having 1 to 8 carbon atoms, or a cycloalkyl group having 5 to 8 carbon atoms. Here, typical examples of the alkyl group having 1 to 8 carbon atoms include, for example, methyl, ethyl, n-propyl, i-
Examples include propyl, n-butyl, i-butyl, sec-butyl, t-butyl, t-pentyl, i-octyl, t-octyl, 2-ethylhexyl and the like. Further, as typical examples of the cycloalkyl group having 5 to 8 carbon atoms, for example, cyclopentyl, cyclohexyl, cycloheptyl, cyclooctyl and the like are mentioned, and as typical examples of the alkylcycloalkyl group having 6 to 12 carbon atoms, for example, 1-methylcyclopentyl , 1-methylcyclohexyl, 1-methyl-4-i-propylcyclohexyl and the like. Representative examples of the aralkyl group having 7 to 12 carbon atoms include benzyl, α-methylbenzyl, α, α-dimethylbenzyl and the like.

Among them, R ¹ and R ⁴ are preferably a t-alkyl group such as t-butyl, t-pentyl, t-octyl, etc., cyclohexyl and 1-methylcyclohexyl group.
R ² is methyl, ethyl, n-propyl, i-propyl, n-
Butyl, i-butyl, sec-butyl, t-butyl, preferably an alkyl group having 1 to 5 carbon atoms such as t-pentyl,
Particularly, methyl, t-butyl and t-pentyl are preferred. R ⁵ is a hydrogen atom, methyl, ethyl, n-propyl, i-propyl, n-butyl, i-butyl, sec-butyl, t-
It is preferably an alkyl group having 1 to 5 carbon atoms such as butyl and t-pentyl.

The substituent R ³ is a hydrogen atom or a group having 1 carbon atom.
Represents an alkyl group having 1 to 8 carbon atoms, and examples of the alkyl group having 1 to 8 carbon atoms include the same alkyl groups as described above. It is preferably a hydrogen atom or an alkyl group having 1 to 5 carbon atoms, and particularly preferably a hydrogen atom or a methyl group.

The substituent X represents a mere bond, a sulfur atom, or a methylene group which may be substituted by an alkyl having 1 to 8 carbon atoms or a cycloalkyl having 5 to 8 carbon atoms. Here, the number of carbon atoms substituted with a methylene group is 1 to 1.
Examples of the alkyl having 8 and the cycloalkyl having 5 to 8 carbon atoms include the same alkyl groups and cycloalkyl groups as described above. X is a mere bond, a methylene group or methyl, ethyl, n-propyl, i-propyl, n-butyl, i-
Preferably, butyl, t-butyl or the like is a substituted methylene group.

The substituent A is an alkylene group having 2 to 8 carbon atoms or a * -COR ⁷ -group (R ⁷ is a mere bond or an alkylene group having 1 to 8 carbon atoms, and * is bonded to the oxygen side. This indicates that this is the case). Here, typical examples of the alkylene group having 2 to 8 carbon atoms include ethylene, propylene, butylene, pentamethylene, hexamethylene, octamethylene, 2,2-dimethyl-1,3-propylene and the like. Propylene is preferably used. Also, * -CO
* In the R ⁷ -group indicates that the carbonyl is bonded to the oxygen of the phosphite. Carbon number 1 in R ⁷
Representative examples of the alkylene group of ~ 8 include, for example, methylene, ethylene, propylene, butylene, pentamethylene, hexamethylene, octamethylene, 2,2-dimethyl-
1,3-propylene and the like. As R ⁷ , a mere bond, ethylene or the like is preferably used.

One of Y and Z represents a hydroxyl group, an alkoxy group having 1 to 8 carbon atoms or an aralkyloxy group having 7 to 12 carbon atoms, and the other represents a hydrogen atom or an alkyl group having 1 to 8 carbon atoms. Represents Here, as the alkyl group having 1 to 8 carbon atoms, for example, the same alkyl group as described above can be mentioned, and as the alkoxy group having 1 to 8 carbon atoms, for example, the alkyl portion is the same as the alkyl having 1 to 8 carbon atoms. Alkoxy groups which are the same as the above alkyl groups;
Examples of the aralkyloxy group having from 12 to 12 include an aralkyloxy group in which the aralkyl moiety is the same aralkyl as the aralkyl having 7 to 12 carbon atoms.

The phosphites represented by the formula (I) are, for example, those represented by the general formula (II)

[0016]

(Wherein R ¹ , R ² , R ³ and X have the same meanings as described above), a phosphorus trihalide, and a compound of the general formula (III)

[0018]

(Wherein, R ⁴ , R ⁵ , A, Y and Z have the same meanings as described above).

The phosphorus trihalide used here includes, for example, phosphorus trichloride, phosphorus tribromide and the like.
In particular, phosphorus trichloride is preferably used.

In the reaction, the reaction is promoted by coexistence of a dehydrohalogenating agent such as amines, pyridines, pyrrolidines and amides, and a hydroxide of an alkali metal or an alkaline earth metal. Can also. Here, the amines include primary amines,
Any of secondary amines and tertiary amines may be used, for example, t-butylamine, t-pentylamine, t-hexylamine, t-octylamine, di-t-butylamine, di-t-pentylamine, di-t-hexylamine , Di-t-octylamine,
Examples thereof include trimethylamine, triethylamine, N, N-dimethylaniline, and N, N-diethylaniline, and preferably triethylamine. As pyridines,
For example, pyridine, picoline and the like can be mentioned, and pyridine is preferable. As pyrrolidines, for example, 1-
Methyl-2-pyrrolidine and the like. Examples of the amide include N, N-dimethylformamide and N, N-dimethylacetamide, and N, N-dimethylformamide is preferably used. Examples of the alkali metal or alkaline earth metal hydroxide include sodium hydroxide and calcium hydroxide, and preferably sodium hydroxide.

The reaction is usually performed in an organic solvent. The organic solvent is not particularly limited as long as it does not inhibit the reaction, and examples thereof include aromatic hydrocarbons, aliphatic hydrocarbons, oxygen-containing hydrocarbons, and halogenated hydrocarbons. As aromatic hydrocarbons, for example, benzene, toluene, xylene, ethylbenzene, etc., as aliphatic hydrocarbons, for example, n-hexane, n-heptane, n-octane, etc., as oxygen-containing hydrocarbons, for example, diethyl Ether, dibutyl ether, tetrahydrofuran, 1,4-
Examples of halogenated hydrocarbons such as dioxane include, for example, chloroform, carbon tetrachloride, monochlorobenzene, dichloromethane, 1,2-dichloroethane, dichlorobenzene, and the like. Among these, toluene, xylene,
n-Hexane, n-heptane, diethyl ether, tetrahydrofuran, 1,4-dioxane, chloroform, dichloromethane and the like are preferably used.

As a reaction method, usually, a two-stage reaction method is employed in which an intermediate is formed by first reacting a bisphenol (II) with phosphorus trihalide and then reacting with a hydroxy compound (III). . In this method, phosphorus trihalide is added to bisphenols (II) in an amount of 1%.
It is preferably used in an amount of about 1.1 to 1.1 times, more preferably about 1 to 1.05 times. When a dehydrohalogenating agent is used, it is preferably used in an amount of about 0.05 to 2.4 mol times the phosphorus trihalide, more preferably 2 to 2.1 times.
It is about mole times. The reaction between the bisphenols (II) and phosphorus trihalide is usually carried out at about 0 to 200 ° C. This reaction is considered to produce an intermediate halogenophosphite, which may be isolated and then used for the next reaction, but is usually subjected to the reaction with the hydroxy compound (III) as a reaction mixture.

Next, when reacting the hydroxy compound (III), the bisphenol (II) is reacted with
Usually, it is used in an amount of about 1 to 1.1 mole times. Also in this reaction, a dehydrohalogenating agent can be used, and in that case, the amount of the dehydrohalogenating agent is the amount of the hydroxy compound (III).
The molar ratio is preferably about 0.05 to 1.2 mole times. When the dehydrohalogenating agent is used in an excessive amount in the first reaction, the amount of the additional dehydrohalogenating agent is usually calculated including the remaining dehydrohalogenating agent. The reaction is usually carried out at a temperature of about 0 to 200 ° C.

After the completion of the reaction, when a dehydrohalogenating agent is used, the hydrohalide salt of the dehydrohalogenating agent formed by the reaction is removed, and the solvent is further removed. By performing an appropriate post-treatment such as column chromatography, the phosphites (I) of the present invention can be obtained.

Here, bisphenols (II) as a raw material of the phosphites (I) can be prepared by known methods, for example, JP-A-52-122350, US Pat. No. 2,538,355, It can also be produced by condensing alkylphenols according to the method described in JP-A-47451. Bisphenols (II)
If it is commercially available, it can be used.

As the bisphenols (II), for example,
2,2'-methylenebis (4-methyl-6-t-butylphenol), 2,2'-methylenebis (4-ethyl-6-t-butylphenol), 2,2'-methylenebis (4-n-propyl-6 -t-butylphenol), 2,2'-methylenebis (4-i-propyl
-6-t-butylphenol), 2,2'-methylenebis (4-n-
Butyl-6-t-butylphenol), 2,2'-methylenebis
(4-i-butyl-6-t-butylphenol), 2,2'-methylenebis (4,6-di-t-butylphenol), 2,2'-methylenebis (4-t-pentyl-6-t-butylphenol) ), 2,2 '
-Methylenebis (4-nonyl-6-t-butylphenol),
2,2'-methylenebis (4-t-octyl-6-t-butylphenol), 2,2'-methylenebis (4-methyl-6-t-pentylphenol), 2,2'-methylenebis (4-methyl- 6-cyclohexylphenol), 2,2'-methylenebis [4-methyl-6- (α-methylcyclohexyl) phenol)], 2,2 '
-Methylenebis (4-methyl-6-nonylphenol), 2,
2'-methylenebis (4-methyl-6-t-octylphenol), 2,2'-methylenebis (4,6-di-t-pentylphenol), 2,2'-methylenebis [4-nonyl-6- (α -Methylbenzyl) phenol], 2,2′-methylenebis [4-nonyl-6- (α, α-dimethylbenzyl) phenol],
2'-ethylidenebis (4-methyl-6-butylphenol),

2,2'-ethylidenebis (4-ethyl-6-t-butylphenol), 2,2'-ethylidenebis (4-n-propyl-6-t-butylphenol), 2,2'-ethylidenebis (Four
-i-propyl-6-t-butylphenol), 2,2'-ethylidenebis (4-n-butyl-6-t-butylphenol), 2,2 '
-Ethylidenebis (4-i-butyl-6-t-butylphenol), 2,2'-ethylidenebis (4,6-di-t-butylphenol), 2,2'-ethylidenebis (4-t-pentyl- 6-t-butylphenol), 2,2'-ethylidenebis (4-nonyl-6
-t-butylphenol), 2,2'-ethylidenebis (4-t-
Octyl-6-t-butylphenol), 2,2'-ethylidenebis (4-methyl-6-t-pentylphenol), 2,2'-ethylidenebis (4-methyl-6-cyclohexylphenol), 2,2 '-Ethylidenebis [4-methyl-6- (α-methylcyclohexyl) phenol]], 2,2'-ethylidenebis
(4-methyl-6-nonylphenol), 2,2'-ethylidenebis (4-methyl-6-t-octylphenol), 2,2'-ethylidenebis (4,6-di-t-pentylphenol), 2 , 2 '
-Ethylidenebis [4-nonyl-6- (α-methylbenzyl)
Phenol], 2,2'-ethylidenebis [4-nonyl-6-
(α, α-dimethylbenzyl) phenol], 2,2′-propylidenebis (4-methyl-6-t-butylphenol),
2,2'-propylidenebis (4-ethyl-6-t-butylphenol),

2,2'-propylidenebis (4-n-propyl-6
-t-butylphenol), 2,2'-propylidenebis (4-i
-Propyl-6-t-butylphenol), 2,2'-propylidenebis (4-n-butyl-6-t-butylphenol), 2,2 '
-Propylidenebis (4-i-butyl-6-t-butylphenol), 2,2'-propylidenebis (4,6-di-t-butylphenol), 2,2'-propylidenebis (4-t-pentyl-6-t
-Butylphenol), 2,2'-propylidenebis (4-nonyl-6-t-butylphenol), 2,2'-propylidenebis (4-t-octyl-6-t-butylphenol), 2,2'-propylidenebis (4 -Methyl-6-t-pentylphenol), 2,2'-propylidenebis (4-methyl-6-cyclohexylphenol), 2,2'-propylidenebis [4-methyl-6- (α-methylcyclohexyl) phenol) , 2,2 '
-Propylidenebis (4-methyl-6-nonylphenol), 2,2'-propylidenebis (4-methyl-6-t-octylphenol), 2,2'-propylidenebis (4,6-di-t-
Pentylphenol), 2,2′-propylidenebis [4-nonyl-6- (α-methylbenzyl) phenol], 2,2′-propylidenebis [4-nonyl-6- (α, α-dimethylbenzyl) phenol], 2,2'-butylidenebis (4-methyl-6
-t-butylphenol), 2,2'-butylidenebis (4-ethyl-6-t-butylphenol), 2,2'-butylidenebis
(4,6-di-t-butylphenol), 2,2'-butylidenebis (4-methyl-6-cyclohexylphenol),

2,2'-butylidenebis [4-methyl-6- (α-
Methylcyclohexyl) phenol)], 2,2'-butylidenebis (4,6-di-t-pentylphenol), 2,2'-i-butylidenebis (4-methyl-6-t-butylphenol),
2'-i-butylidenebis (4-ethyl-6-t-butylphenol), 2,2'-i-butylidenebis (4,6-di-t-butylphenol), 2,2'-i-butylidenebis (4-methyl -6-cyclohexylphenol), 2,2'-i-butylidenebis [4-
Methyl-6- (α-methylcyclohexyl) phenol)], 2,2′-i-butylidenebis (4,6-di-t-pentylphenol), 2,2′-pentylidenebis (4-methyl-6- t
-Butylphenol), 2,2'-pentylidenebis (4-ethyl-6-t-butylphenol), 2,2'-pentylidenebis (4,6-di-t-butylphenol), 2,2'-pliers Redidenbis (4-methyl-6-cyclohexylphenol), 2,
2′-pentylidenebis [4-methyl-6- (α-methylcyclohexyl) phenol)], 2,2′-pentylidenebis (4,6
-Di-t-pentylphenol), biphenyl-2,2'-diol, 3,3 ', 5,5'-tetra-t-butylbiphenyl-2,2'-diol, 1,1'-binaphthyl-2 , 2'-diol and the like.

In the hydroxy compound (III), which is the other raw material of the phosphites (I), A has 2 carbon atoms.
When it is an alkylene of ~ 8, it can be produced, for example, by reducing the corresponding phenylcarboxylic acid or its ester, benzaldehyde or the like according to a known method. Here, as the reducing agent, for example, aluminum lithium hydride, aluminum sodium hydride, lithium borohydride, sodium borohydride, calcium borohydride, aluminum sodium triethoxyhydride, sodium triacetoxyborohydride, tributyltin hydride, 9-BBN-pyridine, Boron trihydride, sodium / ammonia in the presence of alcohol, lithium / ammonia in the presence of alcohol, di-ammonia
iso-butyl aluminum hydride and the like.

When A is alkylene having 2 to 8 carbon atoms, typical examples of the hydroxy compound (III) include:
For example, 2- (3-t-butyl-4-hydroxyphenyl) ethanol, 2- (3-t-pentyl-4-hydroxyphenyl) ethanol, 2- (3-t-octyl-ethanol)
4-hydroxyphenyl) ethanol, 2- (3-cyclohexyl-4-hydroxyphenyl) ethanol, 2
-[3- (1-methylcyclohexyl) -4-hydroxyphenyl] ethanol, 2- (3-t-butyl-4-
(Hydroxy-5-methylphenyl) ethanol, 2-
(3-t-pentyl-4-hydroxy-5-methylphenyl) ethanol, 2- (3-t-octyl-4-hydroxy-5-methylphenyl) ethanol, 2- (3-
Cyclohexyl-4-hydroxy-5-methylphenyl) ethanol, 2- [3- (1-methylcyclohexyl) -4-hydroxy-5-methylphenyl] ethanol, 2- (3-t-butyl-4-hydroxy-5) -Ethylphenyl) ethanol, 2- (3-t-pentyl-4)
-Hydroxy-5-ethylphenyl) ethanol, 2-
(3-t-octyl-4-hydroxy-5-ethylphenyl) ethanol, 2- (3-cyclohexyl-4-hydroxy-5-ethylphenyl) ethanol, 2- [3
-(1-methylcyclohexyl) -4-hydroxy-5
-Ethylphenyl] ethanol,

2- (3,5-di-tert-butyl-4-hydroxyphenyl) ethanol, 2- (3-tert-pentyl-4-hydroxy-5-tert-butylphenyl) ethanol, 2- (3- t-octyl-4-hydroxy-5-t
-Butylphenyl) ethanol, 2- (3-cyclohexyl-4-hydroxy-5-t-butylphenyl) ethanol, 2- [3- (1-methylcyclohexyl) -4
-Hydroxy-5-t-butylphenyl] ethanol,
2- (3-t-butyl-4-methoxyphenyl) ethanol, 2- (3-t-pentyl-4-methoxyphenyl) ethanol, 2- (3-t-octyl-4-methoxyphenyl) ethanol, 2- (3-cyclohexyl-
4-methoxyphenyl) ethanol, 2- [3- (1-
Methylcyclohexyl) -4-methoxyphenyl] ethanol, 2- (3-t-butyl-4-methoxy-5-methylphenyl) ethanol, 2- (3-t-pentyl-
4-methoxy-5-methylphenyl) ethanol, 2-
(3-t-octyl-4-methoxy-5-methylphenyl) ethanol, 2- (3-cyclohexyl-4-methoxy-5-methylphenyl) ethanol, 2- [3-
(1-methylcyclohexyl) -4-methoxy-5-methylphenyl] ethanol, 2- (3-t-butyl-4)
-Methoxy-5-ethylphenyl) ethanol, 2-
(3-t-pentyl-4-methoxy-5-ethylphenyl) ethanol, 2- (3-t-octyl-4-methoxy-5-ethylphenyl) ethanol, 2- (3-cyclohexyl-4-methoxy-5) -Ethylphenyl) ethanol,

2- [3- (1-methylcyclohexyl)
-4-methoxy-5-ethylphenyl] ethanol, 2
-(3,5-di-t-butyl-4-methoxyphenyl)
Ethanol, 2- (3-t-pentyl-4-methoxy-
5-t-butylphenyl) ethanol, 2- (3-t-
Octyl-4-methoxy-5-t-butylphenyl) ethanol, 2- (3-cyclohexyl-4-methoxy-5-t-butylphenyl) ethanol, 2- [3-
(1-methylcyclohexyl) -4-methoxy-5-t
-Butylphenyl] ethanol, 3- (3-t-butyl-2-hydroxyphenyl) propanol, 3- (3-
t-butyl-4-hydroxyphenyl) propanol,
3- (5-tert-butyl-2-hydroxyphenyl) propanol, 3- (3-tert-pentyl-4-hydroxyphenyl) propanol, 3- (3-tert-octyl-4-)
(Hydroxyphenyl) propanol, 3- (3-cyclohexyl-4-hydroxyphenyl) propanol, 3
-[3- (1-methylcyclohexyl) -4-hydroxyphenyl] propanol, 3- (3-t-butyl-2)
-Hydroxy-5-methylphenyl) propanol, 3
-(3-t-butyl-4-hydroxy-5-methylphenyl) propanol, 3- (5-t-butyl-2-hydroxy-3-methylphenyl) propanol, 3- (3
-T-pentyl-4-hydroxy-5-methylphenyl) propanol, 3- (3-t-octyl-4-hydroxy-5-methylphenyl) propanol, 3- (3
-Cyclohexyl-4-hydroxy-5-methylphenyl) propanol, 3- [3- (1-methylcyclohexyl) -4-hydroxy-5-methylphenyl] propanol, 3- (3-t-butyl-4-hydroxy- 5
-Ethylphenyl) propanol,

3- (3-t-pentyl-4-hydroxy-5-ethylphenyl) propanol, 3- (3-t-
Octyl-4-hydroxy-5-ethylphenyl) propanol, 3- (3-cyclohexyl-4-hydroxy-5-ethylphenyl) propanol, 3- [3- (1
-Methylcyclohexyl) -4-hydroxy-5-ethylphenyl] propanol, 3- (3,5-di-t-butyl-2-hydroxyphenyl) propanol, 3-
(3,5-di-t-butyl-4-hydroxyphenyl)
Propanol, 3- (3-t-pentyl-4-hydroxy-5-t-butylphenyl) propanol, 3- (3
-Tert-octyl-4-hydroxy-5-tert-butylphenyl) propanol, 3- (3-cyclohexyl-4-)
(Hydroxy-5-t-butylphenyl) propanol,
3- [3- (1-methylcyclohexyl) -4-hydroxy-5-t-butylphenyl] propanol, 3-
(3-t-butyl-2-methoxyphenyl) propanol, 3- (3-t-butyl-4-methoxyphenyl) propanol, 3- (3-t-butyl-5-methoxyphenyl) propanol, 3- ( 3-t-pentyl-4-
Methoxyphenyl) propanol, 3- (3-t-octyl-4-methoxyphenyl) propanol, 3- (3
-Cyclohexyl-4-methoxyphenyl) propanol, 3- [3- (1-methylcyclohexyl) -4-methoxyphenyl] propanol,

3- (3-tert-butyl-2-methoxy-5)
-Methylphenyl) propanol, 3- (3-t-butyl-4-methoxy-5-methylphenyl) propanol, 3- (5-t-butyl-2-methoxy-3-methylphenyl) propanol, 3- (3 -T-pentyl-4
-Methoxy-5-methylphenyl) propanol, 3-
(3-t-octyl-4-methoxy-5-methylphenyl) propanol, 3- (3-cyclohexyl-4-methoxy-5-methylphenyl) propanol, 3- [3
-(1-methylcyclohexyl) -4-methoxy-5-
Methylphenyl] propanol, 3- (3-t-butyl-4-methoxy-5-ethylphenyl) propanol,
3- (3-t-pentyl-4-methoxy-5-ethylphenyl) propanol, 3- (3-t-octyl-4-
Methoxy-5-ethylphenyl) propanol, 3-
(3-cyclohexyl-4-methoxy-5-ethylphenyl) propanol, 3- [3- (1-methylcyclohexyl) -4-methoxy-5-ethylphenyl] propanol, 3- (3,5-di-t-) Butyl-2-methoxyphenyl) propanol, 3- (3,5-di-t-butyl-4-methoxyphenyl) propanol, 3- (3-
t-pentyl-4-methoxy-5-t-butylphenyl) propanol, 3- (3-t-octyl-4-methoxy-5-t-butylphenyl) propanol, 3-
(3-cyclohexyl-4-methoxy-5-t-butylphenyl) propanol,

3- [3- (1-methylcyclohexyl)
-4-methoxy-5-tert-butylphenyl] propanol, 3- (3-tert-butyl-2-ethoxyphenyl) propanol, 3- (3-tert-butyl-4-ethoxyphenyl) propanol, 3- (3 -Tert-butyl-4-ethoxy-5-methylphenyl) propanol, 3- (3-
t-butyl-2-ethoxy-5-methylphenyl) propanol, 3- (5-tert-butyl-2-ethoxy-3-)
Methylphenyl) propanol, 3- (3,5-di-t)
-Butyl-4-ethoxyphenyl) propanol, 3-
(3,5-di-tert-butyl-2-ethoxyphenyl) propanol, 4- (3-tert-butyl-2-hydroxyphenyl) butanol, 4- (3-tert-butyl-4-hydroxyphenyl) butanol, 4- (3-t-butyl-
4-hydroxy-5-methylphenyl) butanol,
-(3-t-butyl-2-hydroxy-5-methylphenyl) butanol, 4- (5-t-butyl-2-hydroxy-3-methylphenyl) butanol, 4- (3,5
-Di-tert-butyl-4-hydroxyphenyl) butanol, 4- (3,5-di-tert-butyl-2-hydroxyphenyl) butanol, 4- (3-tert-butyl-2-methoxyphenyl) butanol, 4- (3-t-butyl-4
-Methoxyphenyl) butanol, 4- (3-t-butyl-4-methoxy-5-methylphenyl) butanol,
4- (3-t-butyl-2-methoxy-5-methylphenyl) butanol, 4- (5-t-butyl-2-methoxy-3-methylphenyl) butanol, 4- (3,5-
Di-tert-butyl-4-methoxyphenyl) butanol,
4- (3,5-di-tert-butyl-2-methoxyphenyl) butanol,

5- (3-tert-butyl-2-hydroxyphenyl) pentanol, 5- (3-tert-butyl-4-hydroxyphenyl) pentanol, 5- (3-tert-butyl-4-hydroxy-pentanol) 5- (3-t-butyl-2-hydroxy-5-methylphenyl) pentanol, 5- (5-t-butyl-2)
-Hydroxy-3-methylphenyl) pentanol, 5
-(3,5-di-t-butyl-4-hydroxyphenyl) pentanol, 6- (3,5-di-t-butyl-2)
-Hydroxyphenyl) hexanol, 6- (3-t-
Butyl-2-hydroxyphenyl) hexanol, 6-
(3-t-butyl-4-hydroxyphenyl) hexanol, 6- (3-t-butyl-4-hydroxy-5-methylphenyl) hexanol, 6- (3-t-butyl-
2-hydroxy-5-methylphenyl) hexanol,
6- (5-tert-butyl-2-hydroxy-3-methylphenyl) hexanol, 6- (3,5-di-tert-butyl-4-hydroxyphenyl) hexanol, 6- (3
5-di-t-butyl-2-hydroxyphenyl) hexanol and the like.

The hydroxy compound (III), which is the other raw material of the phosphites (I), is such that A
When it is a COR ⁷ — group, it can be produced, for example, according to the following known method. When R ⁷ is a mere bond, the compound is produced, for example, by subjecting the corresponding hydroxybenzoic acid, alkoxybenzoic acid, aralkyloxybenzoic acid or the like to a Friedel-Crafts reaction using a catalyst such as aluminum chloride or zinc chloride. And Z is a hydroxy group,
In the case of an alkoxy group or an aralkyloxy group, a corresponding phenol, an alkali metal hydroxide such as sodium hydroxide or potassium hydroxide and carbon dioxide are used, and It can be produced by a Kolbe-Schmidt reaction according to the method described in JP-A-63-165341. When R ⁷ is an alkylene having 1 to 8 carbon atoms, the corresponding phenol is converted to a compound such as aluminum chloride or zinc chloride in accordance with the method described in Rubber Chemistry and Technology 46 , 96 (1973). After acylation using a Friedel-Crafts catalyst and a carboalkoxyalkanoyl halogenoid, the carbonyl group at the benzyl position is reduced to an alkylene with a hydrogenation catalyst such as palladium charcoal or platinum charcoal, and then the ester is acidified or alkalinized. It can be produced by hydrolysis. A typical example of the hydroxy compound (III) when A is a * -COR ⁷ -group is, for example, 3-
t-butyl-2-hydroxybenzoic acid, 3-tert-butyl-4-hydroxybenzoic acid, 5-tert-butyl-2-hydroxybenzoic acid, 3-tert-pentyl-4-hydroxybenzoic acid, 3-t- Octyl-4-hydroxybenzoic acid,
3-cyclohexyl-4-hydroxybenzoic acid, 3-
(1-methylcyclohexyl) -4-hydroxybenzoic acid, 3-tert-butyl-2-hydroxy-5-methylbenzoic acid, 3-tert-butyl-4-hydroxy-5-methylbenzoic acid, 5-tert-butyl -2-Hydroxy-3-methylbenzoic acid, 3-t-pentyl-4-hydroxy-5-methylbenzoic acid, 3-t-octyl-4-hydroxy-5
-Methylbenzoic acid, 3-cyclohexyl-4-hydroxy-5-methylbenzoic acid, 3- (1-methylcyclohexyl) -4-hydroxy-5-methylbenzoic acid, 3-t
-Butyl-4-hydroxy-5-ethylbenzoic acid, 3-
t-pentyl-4-hydroxy-5-ethylbenzoic acid,
3-t-octyl-4-hydroxy-5-ethylbenzoic acid, 3-cyclohexyl-4-hydroxy-5-ethylbenzoic acid,

3- (1-methylcyclohexyl) -4-
Hydroxy-5-ethylbenzoic acid, 3,5-di-t-butyl-2-hydroxybenzoic acid, 3,5-di-t-butyl-4-hydroxybenzoic acid, 3-t-pentyl-4-
Hydroxy-5-t-butylbenzoic acid, 3-t-octyl-4-hydroxy-5-t-butylbenzoic acid, 3-
Cyclohexyl-4-hydroxy-5-t-butylbenzoic acid, 3- (1-methylcyclohexyl) -4-hydroxy-5-t-butylbenzoic acid, 3-t-butyl-2-
Methoxybenzoic acid, 3-tert-butyl-4-methoxybenzoic acid, 3-tert-butyl-5-methoxybenzoic acid, 3-
t-pentyl-4-methoxybenzoic acid, 3-t-octyl-4-methoxybenzoic acid, 3-cyclohexyl-4-
Methoxybenzoic acid, 3- (1-methylcyclohexyl)
-4-methoxybenzoic acid, 3-tert-butyl-2-methoxy-5-methylbenzoic acid, 3-tert-butyl-4-methoxy-5-methylbenzoic acid, 5-tert-butyl-2-methoxy-3 -Methylbenzoic acid, 3-t-pentyl-4-methoxy-5-methylbenzoic acid, 3-t-octyl-4-methoxy-5-methylbenzoic acid, 3-cyclohexyl-
4-methoxy-5-methylbenzoic acid, 3- (1-methylcyclohexyl) -4-methoxy-5-methylbenzoic acid, 3-t-butyl-4-methoxy-5-ethylbenzoic acid, 3-t-pentyl -4-methoxy-5-ethylbenzoic acid, 3-t-octyl-4-methoxy-5-ethylbenzoic acid, 3-cyclohexyl-4-methoxy-5-ethylbenzoic acid,

3- (1-methylcyclohexyl) -4-
Methoxy-5-ethylbenzoic acid, 3,5-di-t-butyl-2-methoxybenzoic acid, 3,5-di-t-butyl-
4-methoxybenzoic acid, 3-tert-pentyl-4-methoxy-5-tert-butylbenzoic acid, 3-tert-octyl-4-
Methoxy-5-t-butylbenzoic acid, 3-cyclohexyl-4-methoxy-5-t-butylbenzoic acid, 3-
(3- (1-methylcyclohexyl) -4-methoxy-
5-tert-butylbenzoic acid, 3-tert-butyl-2-ethoxybenzoic acid, 3-tert-butyl-4-ethoxybenzoic acid,
3-tert-butyl-4-ethoxy-5-methylbenzoic acid,
3-tert-butyl-2-ethoxy-5-methylbenzoic acid,
5-tert-butyl-2-ethoxy-3-methylbenzoic acid,
3,5-di-t-butyl-4-ethoxybenzoic acid, 3,
5-di-t-butyl-2-ethoxybenzoic acid, (3-t
-Butyl-2-hydroxyphenyl) acetic acid, (3-t-
(Butyl-4-hydroxyphenyl) acetic acid, (5-t-butyl-2-hydroxyphenyl) acetic acid, (3-t-pentyl-4-hydroxyphenyl) acetic acid, (3-t-octyl-4-hydroxyphenyl) acetic acid , (3-cyclohexyl-4-hydroxyphenyl) acetic acid, [3- (1-
Methylcyclohexyl) -4-hydroxyphenyl] acetic acid, (3-t-butyl-2-hydroxy-5-methylphenyl) acetic acid, (3-t-butyl-4-hydroxy-5)
-Methylphenyl) acetic acid,

(5-t-butyl-2-hydroxy-3-
(Methylphenyl) acetic acid, (3-t-pentyl-4-hydroxy-5-methylphenyl) acetic acid, (3-t-octyl-4-hydroxy-5-methylphenyl) acetic acid, (3
-Cyclohexyl-4-hydroxy-5-methylphenyl) acetic acid, [3- (1-methylcyclohexyl) -4-
[Hydroxy-5-methylphenyl] acetic acid, (3-t-butyl-4-hydroxy-5-ethylphenyl) acetic acid,
(3-t-pentyl-4-hydroxy-5-ethylphenyl) acetic acid, (3-t-octyl-4-hydroxy-5)
-Ethylphenyl) acetic acid, (3-cyclohexyl-4-
Hydroxy-5-ethylphenyl) acetic acid, [3- (1-
Methylcyclohexyl) -4-hydroxy-5-ethylphenyl] acetic acid, (3,5-di-t-butyl-2-hydroxyphenyl) acetic acid, (3,5-di-t-butyl-4)
-Hydroxyphenyl) acetic acid, (3-t-pentyl-4)
-Hydroxy-5-t-butylphenyl) acetic acid, (3-
t-octyl-4-hydroxy-5-t-butylphenyl) acetic acid, (3-cyclohexyl-4-hydroxy-5)
-T-butylphenyl) acetic acid,

[3- (1-methylcyclohexyl) -4
-Hydroxy-5-t-butylphenyl] acetic acid, (3-
t-butyl-2-methoxyphenyl) acetic acid, (3-t-
(Butyl-4-methoxyphenyl) acetic acid, (3-t-butyl-5-methoxyphenyl) acetic acid, (3-t-pentyl-4-methoxyphenyl) acetic acid, (3-t-octyl-4-methoxyphenyl) Acetic acid, (3-cyclohexyl-4-methoxyphenyl) acetic acid, [3- (1-methylcyclohexyl) -4-methoxyphenyl] acetic acid, (3-
t-butyl-2-methoxy-5-methylphenyl) acetic acid, (3-t-butyl-4-methoxy-5-methylphenyl) acetic acid, (5-t-butyl-2-methoxy-3-methylphenyl) acetic acid , (3-t-pentyl-4-methoxy-5-methylphenyl) acetic acid, (3-t-octyl-
4-methoxy-5-methylphenyl) acetic acid, (3-cyclohexyl-4-methoxy-5-methylphenyl) acetic acid, [3- (1-methylcyclohexyl) -4-methoxy-5-methylphenyl] acetic acid, (3 -T-butyl-4
-Methoxy-5-ethylphenyl) acetic acid, (3-t-pentyl-4-methoxy-5-ethylphenyl) acetic acid,
(3-t-octyl-4-methoxy-5-ethylphenyl) acetic acid, (3-cyclohexyl-4-methoxy-5-
Ethylphenyl) acetic acid, [3- (1-methylcyclohexyl) -4-methoxy-5-ethylphenyl] acetic acid,
(3,5-di-t-butyl-2-methoxyphenyl) acetic acid,

(3,5-di-tert-butyl-4-methoxyphenyl) acetic acid, (3-tert-pentyl-4-methoxy-)
5-t-butylphenyl) acetic acid, (3-t-octyl-
4-methoxy-5-t-butylphenyl) acetic acid, (3-
Cyclohexyl-4-methoxy-5-t-butylphenyl) acetic acid, [3- (1-methylcyclohexyl) -4-
[Methoxy-5-t-butylphenyl] acetic acid, (3-t-
Butyl-2-ethoxyphenyl) acetic acid, (3-t-butyl-4-ethoxyphenyl) acetic acid, (3-t-butyl-acetic acid)
4-ethoxy-5-methylphenyl) acetic acid, (3-t-
Butyl-2-ethoxy-5-methylphenyl) acetic acid,
(5-tert-butyl-2-ethoxy-3-methylphenyl) acetic acid, (3,5-di-tert-butyl-4-ethoxyphenyl) acetic acid, (3,5-di-tert-butyl-2-ethoxy) Phenyl) acetic acid, 3- (3-t-butyl-2-hydroxyphenyl) propionic acid, 3- (3-t-butyl-
4-hydroxyphenyl) propionic acid, 3- (5-t
-Butyl-2-hydroxyphenyl) propionic acid, 3
-(3-t-pentyl-4-hydroxyphenyl) propionic acid, 3- (3-t-octyl-4-hydroxyphenyl) propionic acid, 3- (3-cyclohexyl-4)
-Hydroxyphenyl) propionic acid, 3- [3- (1
-Methylcyclohexyl) -4-hydroxyphenyl]
Propionic acid, 3- (3-t-butyl-2-hydroxy-5-methylphenyl) propionic acid, 3- (3-t-
Butyl-4-hydroxy-5-methylphenyl) propionic acid, 3- (5-tert-butyl-2-hydroxy-3-
Methylphenyl) propionic acid,

3- (3-t-pentyl-4-hydroxy-5-methylphenyl) propionic acid, 3- (3-t-
Octyl-4-hydroxy-5-methylphenyl) propionic acid, 3- (3-cyclohexyl-4-hydroxy-5-methylphenyl) propionic acid, 3- [3- (1
-Methylcyclohexyl) -4-hydroxy-5-methylphenyl] propionic acid, 3- (3-tert-butyl-
4-hydroxy-5-ethylphenyl) propionic acid,
3- (3-t-pentyl-4-hydroxy-5-ethylphenyl) propionic acid, 3- (3-t-octyl-4
-Hydroxy-5-ethylphenyl) propionic acid, 3
-(3-cyclohexyl-4-hydroxy-5-ethylphenyl) propionic acid, 3- [3- (1-methylcyclohexyl) -4-hydroxy-5-ethylphenyl]
Propionic acid, 3- (3,5-di-t-butyl-2-hydroxyphenyl) propionic acid, 3- (3,5-di-
t-butyl-4-hydroxyphenyl) propionic acid,
3- (3-t-pentyl-4-hydroxy-5-t-butylphenyl) propionic acid, 3- (3-t-octyl-4-hydroxy-5-t-butylphenyl) propionic acid, 3- (3 -Cyclohexyl-4-hydroxy-5
-T-butylphenyl) propionic acid, 3- [3- (1
-Methylcyclohexyl) -4-hydroxy-5-t-
Butylphenyl] propionic acid, 3- (3-t-butyl-2-methoxyphenyl) propionic acid,

3- (3-tert-butyl-4-methoxyphenyl) propionic acid, 3- (3-tert-butyl-5-methoxyphenyl) propionic acid, 3- (3-tert-pentyl-4-methoxyphenyl) ) Propionic acid, 3- (3-t
-Octyl-4-methoxyphenyl) propionic acid, 3
-(3-cyclohexyl-4-methoxyphenyl) propionic acid, 3- [3- (1-methylcyclohexyl)-
4-methoxyphenyl] propionic acid, 3- (3-t-
Butyl-2-methoxy-5-methylphenyl) propionic acid, 3- (3-t-butyl-4-methoxy-5-methylphenyl) propionic acid, 3- (5-t-butyl-2)
-Methoxy-3-methylphenyl) propionic acid, 3-
(3-t-pentyl-4-methoxy-5-methylphenyl) propionic acid, 3- (3-t-octyl-4-methoxy-5-methylphenyl) propionic acid, 3- (3-
Cyclohexyl-4-methoxy-5-methylphenyl)
Propionic acid, 3- [3- (1-methylcyclohexyl) -4-methoxy-5-methylphenyl] propionic acid, 3- (3-t-butyl-4-methoxy-5-ethylphenyl) propionic acid, 3- (3-t-pentyl-4
-Methoxy-5-ethylphenyl) propionic acid, 3-
(3-t-octyl-4-methoxy-5-ethylphenyl) propionic acid, 3- (3-cyclohexyl-4-methoxy-5-ethylphenyl) propionic acid, 3- [3
-(1-methylcyclohexyl) -4-methoxy-5-
Ethylphenyl] propionic acid,

3- (3,5-di-t-butyl-2-methoxyphenyl) propionic acid, 3- (3,5-di-t-
Butyl-4-methoxyphenyl) propionic acid, 3-
(3-t-pentyl-4-methoxy-5-t-butylphenyl) propionic acid, 3- (3-t-octyl-4-)
Methoxy-5-t-butylphenyl) propionic acid, 3
-(3-cyclohexyl-4-methoxy-5-t-butylphenyl) propionic acid, 3- [3- (1-methylcyclohexyl) -4-methoxy-5-t-butylphenyl] propionic acid, 3- (3 -Tert-butyl-2-ethoxyphenyl) propionic acid, 3- (3-tert-butyl-4)
-Ethoxyphenyl) propionic acid, 3- (3-t-butyl-4-ethoxy-5-methylphenyl) propionic acid, 3- (3-t-butyl-2-ethoxy-5-methylphenyl) propionic acid, 3 -(5-t-butyl-2-
Ethoxy-3-methylphenyl) propionic acid, 3-
(3,5-di-t-butyl-4-ethoxyphenyl) propionic acid, 3- (3,5-di-t-butyl-2-ethoxyphenyl) propionic acid, 3- (3-t-butyl-
2-hydroxyphenyl) butanoic acid, 3-
(3-t-butyl-4-hydroxyphenyl) butanoic acid, 3- (3-t-butyl-4-hydroxy-5-methylphenyl) butanoic acid, 3-
(3-t-butyl-2-hydroxy-5-methylphenyl) butanoic acid,

3- (5-tert-butyl-2-hydroxy-
3-methylphenyl) butanoic acid, 3-
(3,5-di-t-butyl-4-hydroxyphenyl)
Butanoic acid, 3- (3,5-di-t-butyl-2-hydroxyphenyl) butanoic acid, 3
-(3-t-butyl-2-methoxyphenyl) butanoic acid, 3- (3-t-butyl-4-methoxyphenyl) butanoic acid, 3- (3-t-butyl-4-methoxy-) 5- (methylphenyl) butanoic acid, 3- (3-t-butyl-2-methoxy-5-methylphenyl) butanoic acid, 3- (5-t-acid)
Butyl-2-methoxy-3-methylphenyl) butanoic acid, 3- (3,5-di-t-butyl-4-methoxyphenyl) butanoic acid, 3- (3,5
-Di-t-butyl-2-methoxyphenyl) butanoic acid;

Thus, the phosphites (I) of the present invention are obtained.
May be used in which amines, acid-bonded metal salts and the like are included to improve hydrolysis resistance. Representative examples of such amines include, for example, trialkanolamines such as triethanolamine, tripropanolamine, and tri-i-propanolamine, diethanolamine, dipropanolamine, di-i-propanolamine, tetraethanolethylenediamine, and tetra-ethanolamine. dialkanolamines such as i-propanolethylenediamine, dibutylethanolamine, monoalkanolamines such as dibutyl-i-propanolamine, aromatic amines such as 1,3,5-trimethyl-2,4,6-triazine, Alkylamines such as dibutylamine, piperidine, 2,2,6,6-tetramethylpiperidine, 4-hydroxy-2,2,6,6-tetramethylpiperidine, hexamethylenetetramine, triethylenediamine, triethylenetetramine, tetraethylene Polyal such as ethylenepentamine Ren polyamines, and the like hindered amine light stabilizer described later. Further, long-chain aliphatic amines described in JP-A-61-63686, compounds containing a sterically hindered amine group described in JP-A-6-329830, hindered amines described in JP-A-7-90270 are disclosed. Peridinyl-based light stabilizers, organic amines described in JP-A-7-278164, and the like can also be used. The content ratio of amines to phosphites (I) is usually 0.01 to 25% by weight.
It is about.

Representative examples of the acid-bonded metal salt include hydrotalcites. Examples of hydrotalcites include a double salt compound represented by the following formula. M ²⁺ _1-x・ M ³⁺ _x・ (OH ⁻ ) ₂・ (A ⁿ⁻ ) _{x / n}・ pH ₂ O (where M ²⁺ is Mg, Ca, Sr, Ba, Zn, Pb , Sn and / or
Or Ni, M ³⁺ represents Al, B or Bi, n
Is a numerical value from 1 to 4, x is a numerical value from 0 to 0.5, and p is a numerical value from 0 to
2 represents a numerical value. A ^n- represents an anion having a valence of n. Here, specific examples of the anion having a valence of ^{n represented} by A ⁿ⁻ include, for example, OH ⁻ , Cl ⁻ , Br ⁻ , I ⁻ , ClO ₄ ⁻ , HC
_{^{O 3 -, C 6 H 5}} COO -, CO 3 2-, SO 2-, - OOCCOO -, (CHO
_{^{HCO0) 2 2-, C 2 H}} 4 (COO) 2 2-, (CH 2 COO) 2 2-, CH 3 CHOHCO
_{^{O -, SiO 3 2-, SiO}} 4 4-, Fe (CN) 6 4-, BO 3-, PO 3 3-, HPO
Among _{the 4} ^2- or the like is represented by the general formula mentioned, those particularly preferred include, for example, hydrotalcites represented by the following formula. Mg _1-x Al _x (OH) ₂ (CO ₃ ) _{x / 2} · pH ₂ O (where x and p represent the same meaning as described above) Even if the hydrotalcites are natural products, It may be a synthetic product, and it can be used irrespective of its crystal structure, crystal particle diameter and the like. Further, ultrafine zinc oxide described in JP-A-6-329830 and inorganic compounds described in JP-A-7-278164 can also be used. The content ratio of the acid-bonded metal salt to the phosphite (I) is usually about 0.01 to 25% by weight.

The stabilizer composition of the present invention comprises the above-mentioned phosphites (I) and at least one selected from phenol stabilizers, sulfur stabilizers, phosphorus stabilizers and hindered amine stabilizers. The phenolic antioxidants include the following stabilizers. Examples of the phenolic antioxidants include the following. These may be used in combination of two or more. (1) Examples of alkylated monophenols 2,6-di-t-butyl-4-methylphenol, 2,4,6-tri-t
-Butylphenol, 2,6-di-t-butylphenol, 2-
t-butyl-4,6-dimethylphenol, 2,6-di-t-butyl
-4-ethylphenol, 2,6-di-t-butyl-4-n-butylphenol, 2,6-di-t-butyl-4-isobutylphenol, 2,6-dicyclopentyl-4-methylphenol, 2 -(
α-methylcyclohexyl) -4,6-dimethylphenol,
2,6-dioctadecyl-4-methylphenol, 2,4,6-tricyclohexylphenol, 2,6-di-t-butyl-4-methoxymethylphenol, 2,6-di-nonyl-4-methylphenol, 2,4-dimethyl-6- (1'-methylundecyl-1'-yl) phenol, 2,4-dimethyl-6- (1'-methylheptadecyl-1'-yl) phenol, 2,4- Dimethyl-6- (1′-methyltridecyl-1′-yl) phenol and mixtures thereof.

(2) Examples of alkylthiomethylphenol 2,4-dioctylthiomethyl-6-t-butylphenol,
4-dioctylthiomethyl-6-methylphenol, 2,4-dioctylthiomethyl-6-ethylphenol, 2,6-didodecylthiomethyl-4-nonylphenol and mixtures thereof. (3) Examples of hydroquinone and alkylated hydroquinone 2,6-di-t-butyl-4-methoxyphenol, 2,5-di-t-
Butylhydroquinone, 2,5-di-t-amylhydroquinone,
2,6-diphenyl-4-octadecyloxyphenol, 2,
6-di-t-butylhydroquinone, 2,5-di-t-butyl-4-hydroxyanisole, 3,5-di-t-butyl-4-hydroxyphenyl stearate, bis (3,5-di-t -Butyl-4-
Hydroxyphenyl) adipates and mixtures thereof.

(4) Examples of tocopherol α-tocopherol, β-tocopherol, γ-tocopherol, δ-tocopherol and mixtures thereof. (5) Examples of hydroxylated thiodiphenyl ethers 2,2'-thiobis (6-t-butylphenol), 2,2'-thiobis (4-methyl-6-t-butylphenol), 2,2'-thiobis (4- Octylphenol), 4,4'-thiobis (3-methyl-6-t-butylphenol), 4,4'-thiobis (2-methyl-6-t-butylphenol), 4,4'-thiobis (3,6-
Di-t-amylphenol), 4,4 '-(2,6-dimethyl-4-hydroxyphenyl) disulfide and the like.

(6) Examples of alkylidene bisphenols and derivatives thereof 2,2'-methylenebis (4-methyl-6-t-butylphenol), 2,2'-methylenebis (4-ethyl-6-t-butylphenol), 2 , 2'-methylenebis [4-methyl-6- (α-methylcyclohexyl) phenol)], 2,2'-methylenebis
(4-methyl-6-cyclohexylphenol), 2,2'-methylenebis (4-methyl-6-nonylphenol), 2,2'-
Methylenebis (4,6-di-t-butylphenol), 2,2'-
Ethylidenebis (4,6-di-t-butylphenol), 2,2 '
-Ethylidenebis (4-isobutyl-6-t-butylphenol), 2,2'-methylenebis [6- (α-methylbenzyl) -4-
Nonylphenol], 2,2'-methylenebis [6- (α, α-
Dimethylbenzyl) -4-nonylphenol], 4,4'-methylenebis (6-t-butyl-2-methylphenol), 4,4'-
Methylenebis (2,6-di-t-butylphenol), 4,4'-
Butylidenebis (3-methyl-6-t-butylphenol),
1,1-bis (4-hydroxyphenyl) cyclohexane, 1,
1-bis (5-t-butyl-4-hydroxy-2-methylphenyl) butane, 2,6-bis (3-t-butyl-5-methyl-2-hydroxybenzyl) -4-methylphenol, 1, 1,3-Tris (5
-t-butyl-4-hydroxy-2-methylphenyl) butane, 1,1-bis (5-t-butyl-4-hydroxy-2-methylphenyl) -3-n-dodecylmercaptobutane, ethylene glycol bis [ 3,3-bis-3'-t-butyl-4'-hydroxyphenyl) butyrate], bis (3-t-butyl-4-hydroxy-5-methylphenyl) dicyclopentadiene, bis [2
-(3'-t-butyl-2'-hydroxy-5'-methylbenzyl) -6-
t-butyl-4-methylphenyl] terephthalate, 1,1-bis (3,5-dimethyl-2-hydroxyphenyl) butane, 2,
2-bis (3,5-di-t-butyl-4-hydroxyphenyl) propane, 2,2-bis (5-t-butyl-4-hydroxy-2-methylphenyl) -4-n-dodecylmercaptobutane , 1,1,5,5-
Tetra (5-t-butyl-4-hydroxy-2-methylphenyl) pentane, 2-t-butyl-6- (3'-t-butyl-5'-methyl
-2'-hydroxybenzyl) -4-methylphenyl acrylate, 2,4-di-t-pentyl-6- [1- (2-hydroxy-3,5-
Di-t-pentylphenyl) ethyl] phenyl acrylate and mixtures thereof.

(7) Examples of O-, N- and S-benzyl derivatives 3,5,3 ', 5'-tetra-t-butyl-4,4'-dihydroxydibenzyl ether, octadecyl-4-hydroxy- 3,5-dimethylbenzylmercaptoacetate, tris (3,5-di-t
-Butyl-4-hydroxybenzyl) amine, bis (4-t-
Butyl-3-hydroxy-2,6-dimethylbenzyl) dithioterephthalate, bis (3,5-di-t-butyl-4-hydroxybenzyl) sulfide, isooctyl-3,5-di-t-butyl-4-hydroxy Benzyl mercapto acetate and mixtures thereof. (8) Examples of hydroxybenzylated malonate derivatives dioctadecyl-2,2-bis (3,5-di-t-butyl-2-hydroxybenzyl) malonate, dioctadecyl-2- (3-t-
Butyl-4-hydroxy-5-methylbenzyl) malonate, didodecylmercaptoethyl-2,2-bis (3,5-di-t
-Butyl-4-hydroxybenzyl) malonate, bis [4
-(1,1,3,3-tetramethylbutyl) phenyl] -2,2-bis
(3,5-di-t-butyl-4-hydroxybenzyl) malonate and mixtures thereof. (9) Examples of aromatic hydroxybenzyl derivatives 1,3,5-trimethyl-2,4,6-tris (3,5-di-t-butyl-4
-Hydroxybenzyl) benzene, 1,4-bis (3,5-di-t
-Butyl-4-hydroxybenzyl) -2,3,5,6-tetramethylbenzene, 2,4,6-tris (3,5-t-butyl-4-hydroxybenzyl) phenol and mixtures thereof.

(10) Examples of triazine derivatives 2,4-bis (n-octylthio) -6- (4-hydroxy-3,5-di
-t-butylanilino) -1,3,5-triazine, 2-n-octylthio-4,6-bis (4-hydroxy-3,5-di-t-butylanilino) -1,3,5-triazine, 2 -n-octylthio-4,6-bis
(4-hydroxy-3,5-di-t-butylphenoxy) -1,3,5-
Triazine, 2,4,6-tris (3,5-di-t-butyl-4-phenoxy) -1,3,5-triazine, tris (4-t-butyl-3-hydroxy-2,6-dimethyl Benzyl) isocyanurate,
Tris (3,5-di-t-butyl-4-hydroxybenzyl) isocyanurate, 2,4,6-tris (3,5-di-t-butyl-4-hydroxy-4-)
(Hydroxyphenylethyl) -1,3,5-triazine, 2,4,6-
Tris (3,5-di-t-butyl-4-hydroxyphenylpropyl) -1,3,5-triazine, tris (3,5-dicyclohexyl-4-hydroxybenzyl) isocyanurate, tris
[2- (3 ', 5'-di-t-butyl-4'-hydroxycinnamoyloxy) ethyl] isocyanurate and mixtures thereof.

(11) Examples of benzylphosphonate derivatives: dimethyl-3,5-di-t-butyl-4-hydroxybenzylphosphonate, diethyl-3,5-di-t-butyl-4-hydroxybenzylphosphonate, dioctadecyl- 3,5-di-t-
Calcium salts of butyl-4-hydroxybenzylphosphonate, dioctadecyl-5-t-butyl-4-hydroxy-3-methylbenzylphosphonate, 3,5-di-t-butyl-4-hydroxybenzylphosphonic acid monoester and their salts Mixtures and the like. (12) Examples of acylaminophenol derivatives: 4-hydroxylauric anilide, 4-hydroxystearic anilide, octyl-N- (3,5-di-t-butyl-4-hydroxyphenyl) carbanate and mixtures thereof. (13) β- (3,5-di-t-butyl-4-hydroxyphenyl)
Examples of esters of propionic acid with the following monohydric or polyhydric alcohols: methanol, ethanol, octanol, octadecanol, ethylene glycol, 1,3-propanediol, 1,3
4-butanediol, 1,6-hexanediol, 1,9-nonanediol, neopentyl glycol, diethylene glycol, thioethylene glycol, spiro glycol, triethylene glycol, pentaerythritol, tris (hydroxyethyl) isocyanurate, N, N '-Bis (hydroxyethyl) oxamide, 3-thiaundecanol, 3-thiapentadecanol, trimethylhexanediol, trimethylolpropane, 4-hydroxymethyl-1
-Phospha-2,6,7-trioxabicyclo [2,2,2] octane and mixtures thereof.

(14) β- (5-t-butyl-4-hydroxy-3-
Examples of esters of methylphenyl) propionic acid with the following monohydric or polyhydric alcohols: methanol, ethanol, octanol, octadecanol, ethylene glycol, 1,3-propanediol,
4-butanediol, 1,6-hexanediol, 1,9-nonanediol, neopentyl glycol, diethylene glycol, thioethylene glycol, spiro glycol, triethylene glycol, pentaerythritol, tris (hydroxyethyl) isocyanurate, N, N '-Bis (hydroxyethyl) oxamide, 3-thiaundecanol, 3-thiapentadecanol, trimethylhexanediol, trimethylolpropane, 4-hydroxymethyl-1
-Phospha-2,6,7-trioxabicyclo [2,2,2] octane and mixtures thereof. (15) Examples of esters of β- (3,5-dicyclohexyl-4-hydroxyphenyl) propionic acid with the following monohydric or polyhydric alcohols: methanol, ethanol, octanol, octadecanol, ethylene glycol, 1,3- Propanediol, 1,
4-butanediol, 1,6-hexanediol, 1,9-nonanediol, neopentyl glycol, diethylene glycol, thioethylene glycol, spiro glycol, triethylene glycol, pentaerythritol, tris (hydroxyethyl) isocyanurate, N, N '-Bis (hydroxyethyl) oxamide, 3-thiaundecanol, 3-thiapentadecanol, trimethylhexanediol, trimethylolpropane, 4-hydroxymethyl-1
-Phospha-2,6,7-trioxabicyclo [2,2,2] octane and mixtures thereof.

(16) Examples of esters of 3,5-di-t-butyl-4-hydroxyphenylacetic acid with the following monohydric or polyhydric alcohols: methanol, ethanol, octanol, octadecanol, ethylene glycol, 3-propanediol, 1,
4-butanediol, 1,6-hexanediol, 1,9-nonanediol, neopentyl glycol, diethylene glycol, thioethylene glycol, spiro glycol, triethylene glycol, pentaerythritol, tris (hydroxyethyl) isocyanurate, N, N '-Bis (hydroxyethyl) oxamide, 3-thiaundecanol, 3-thiapentadecanol, trimethylhexanediol, trimethylolpropane, 4-hydroxymethyl-1
-Phospha-2,6,7-trioxabicyclo [2,2,2] octane and mixtures thereof. (17) β- (3,5-di-t-butyl-4-hydroxyphenyl)
Examples of amides of propionic acid N, N'-bis [3- (3 ', 5'-di-t-butyl-4'-hydroxyphenyl) propionyl] hydrazine, N, N'-bis [3- (3' ,
5'-di-t-butyl-4'-hydroxyphenyl) propionyl] hexamethylenediamine, N, N'-bis [3- (3 ', 5'-di
-t-butyl-4'-hydroxyphenyl) propionyl] trimethylenediamine and mixtures thereof.

Particularly preferred phenolic antioxidants include the following compounds, which may be used in combination of two or more. 2,6-di-t-butyl-4-methylphenol, 2,4,6-
Tri-t-butylphenol, 2,4-dioctylthiomethyl
-6-Methylphenol, 2,2'-thiobis (6-t-butylphenol), 4,4'-thiobis (3-methyl-6-t-butylphenol), 2,2'-methylenebis (4-methyl-6 -t-butylphenol), 2,2'-methylenebis (4-ethyl-6-t-
Butylphenol), 2,2'-methylenebis [4-methyl-6
-(α-methylcyclohexyl) phenol)], 2,2'-
Methylenebis (4-methyl-6-cyclohexylphenol), 2,2'-methylenebis (4,6-di-t-butylphenol), 2,2'-ethylidenebis (4,6-di-t-butylphenol), 4 , 4'-methylenebis (6-t-butyl-2-methylphenol), 4,4'-methylenebis (2,6-di-t-butylphenol), 4,4'-butylidenebis (3-methyl-6-t -Butylphenol), 1,1-bis (4-hydroxyphenyl)
Cyclohexane, 1,1-bis (5-t-butyl-4-hydroxy
-2-methylphenyl) butane, 1,1,3-tris (5-t-butyl-4-hydroxy-2-methylphenyl) butane, ethylene glycol bis [3,3-bis-3'-t-butyl- 4'-hydroxyphenyl) butyrate], 2-t-butyl-6- (3'-t-butyl-5'-methyl-2'-hydroxybenzyl) -4-methylphenyl acrylate, 2,4-di-t -Pentyl-6- [1- (2-hydroxy-3,5-di-t-pentylphenyl) ethyl] phenyl acrylate,

2,4,6-tris (3,5-di-t-butyl-4-phenoxy) -1,3,5-triazine, tris (4-t-butyl-3-hydroxy-2,6- Dimethylbenzyl) isocyanurate,
Bis (3,5-di-t-butyl-4-hydroxybenzyl) isocyanurate, tris [2- (3 ′, 5′-di-t-butyl-4′-hydroxycinnamoyloxy) ethyl] isocyanurate, Diethyl-3,5-di-t-butyl-4-hydroxybenzylphosphonate, di-n-octadecyl-3,5-di-t-butyl-4-hydroxybenzylphosphonate, 3,5-di-t-butyl- Calcium salt of 4-hydroxybenzylphosphonic acid monoester, n-octadecyl 3- (3,5-di-t-butyl
-4-hydroxyphenyl) propionate, neopentanetetrayltetrakis (3,5-di-t-butyl-4-hydroxydihydrocinnamate), thiodiethylenebis (3,5
-Di-t-butyl-4-hydroxycinnamate), 1,3,5-
Trimethyl-2,4,6-tris (3,5-di-t-butyl-4-hydroxybenzyl) benzene, 3,6-dioxaoctamethylenebis (3,5-di-t-butyl-4-hydroxy) Cinnamate), hexamethylenebis (3,5-di-t-butyl-4-hydroxycinnamate), triethylene glycol bis
(5-t-tyl-4-hydroxy-3-methylcinnamate),
3,9-bis [2- (3- (3-t-butyl-4-hydroxy-5-methylphenyl) propionyloxy) -1,1-dimethylethyl]-
2,4,8,10-tetraoxaspiro [5.5] undecane, N, N '
-Bis [3- (3 ', 5'-di-t-butyl-4'-hydroxyphenyl) propionyl] hydrazine, N, N'-bis [3- (3', 5'-
Di-t-butyl-4'-hydroxyphenyl) propionyl]
Hexamethylenediamine and the like.

Examples of the sulfur-based antioxidant include the following. These may be used in combination of two or more. Dilauryl 3,3'-thiodipropionate, tridecyl 3,3'-thiodipropionate, dimyristyl 3,3'-thiodipropionate, distearyl
3,3'-thiodipropionate, lauryl stearyl
3,3'-thiodipropionate, neopentanetetrayltetrakis (3-laurylthiopropionate) and the like.
Further, examples of the phosphorus-based antioxidant include the following. Triphenyl phosphite, tris (nonylphenyl) phosphite, tris (2,4-di-t-butylphenyl) phosphite, trilauryl phosphite, trioctadecyl phosphite, distearyl pentaerythritol diphosphite, diisodecyl
Pentaerythritol diphosphite, bis (2,4-di
-t-butylphenyl) pentaerythritol diphosphite, bis (2,4-di-t-butyl-6-methylphenyl)
Pentaerythritol diphosphite, bis (2,6-di
-t-butyl-4-methylphenyl) pentaerythritol diphosphite, bis (2,4,6-tri-t-butylphenyl) pentaerythritol diphosphite, tristearylsorbitol triphosphite, tetrakis (2,4
-Di-t-butylphenyl) -4,4'-diphenylenediphosphonite, 2,2'-methylenebis (4,6-di-t-butylphenyl) 2-ethylhexyl phosphite, 2,2'-ethylidene Bis (4,6-di-t-butylphenyl) fluorophosphite, bis (2,4-di-t-butyl-6-methylphenyl) ethyl phosphite, bis (2,4-di-t-butyl)
-6-methylphenyl) methyl phosphite, 2- (2,
4,6-tri-t-butylphenyl) -5-ethyl-5-butyl-1,
3,2-oxaphosphorinane, 2,2 ', 2''-nitrilo [triethyl-tris (3,3', 5,5'-tetra-t-butyl-1,1'-biphenyl-2,2 ' -Diyl) phosphites and mixtures thereof.

Particularly preferred phosphorus antioxidants include the following, and two or more of these can be used. Tris (nonylphenyl) phosphite, tris
(2,4-di-t-butylphenyl) phosphite, distearyl pentaerythritol diphosphite, bis
(2,4-di-t-butylphenyl) pentaerythritol
Diphosphite, bis (2,4-di-t-butyl-6-methylphenyl) pentaerythritol diphosphite, bis
(2,6-di-t-butyl-4-methylphenyl) pentaerythritol diphosphite, tetrakis (2,4-di-t-butylphenyl) -4,4′-diphenylenediphosphonite,
2'-methylenebis (4,6-di-t-butylphenyl) 2-ethylhexyl phosphite, 2,2'-ethylidenebis
(4,6-di-t-butylphenyl) fluorophosphite, bis (2,4-di-t-butyl-6-methylphenyl) ethyl phosphite, 2- (2,4,6-tri-t- (Butylphenyl) -5-ethyl-5-butyl-1,3,2-oxaphosphorinane,
2,2 ', 2''-nitrilo [triethyl-tris (3,3', 5,5'-
Tetra-t-butyl-1,1'-biphenyl-2,2'-diyl) phosphite and the like.

Examples of the hindered amine light stabilizer include the following. Screw (2,2,6,6
-Tetramethyl-4-piperidyl) sebacate, bis ((2,2,6,6-tetramethyl-4-piperidyl) succinate, bis (1,2,2,6,6-pentamethyl-4-piperidyl)
Sebacate, bis (N-octoxy-2,2,6,6-tetramethyl-4-piperidyl) sebacate, bis (N-benzyloxy-2,2,6,6-tetramethyl-4-piperidyl) sebacate, bis (N-cyclohexyloxy-2,2,6,6-tetramethyl-4-piperidyl) sebacate, bis (1,2,2,
6,6-pentamethyl-4-piperidyl) 2- (3,5-di-t-butyl-4-hydroxybenzyl) -2-butylmalonate, bis
(1-Acroyl-2,2,6,6-tetramethyl-4-piperidyl) 2,2-bis (3,5-di-t-butyl-4-hydroxybenzyl) -2-butylmalonate, bis ( 1,2,2,6,6-pentamethyl-4-piperidyl decandioate, 2,2,6,6-tetramethyl-4-piperidyl methacrylate, 4- [3- (3,
5-di-t-butyl-4-hydroxyphenyl) propionyloxy] -1- [2- (3- (3,5-di-t-butyl-4-hydroxyphenyl) propionyloxy) ethyl] -2,2 , 6,6-tetramethylpiperidine, 2-methyl-2- (2,2,6,6-tetramethyl
-4-piperidyl) amino-N- (2,2,6,6-tetramethyl-4-
Piperidyl) propionamide, tetrakis (2,2,6,6-
Tetramethyl-4-piperidyl) 1,2,3,4-butanetetracarboxylate, tetrakis (1,2,2,6,6-pentamethyl-4-piperidyl) 1,2,3,4-butanetetracarboxylate , 1,2,3,4-butanetetracarboxylic acid and 1,2,2,6,6-
Mixed esterified products with pentamethyl-4-piperidinol and 1-tridecanol,

Mixed ester of 1,2,3,4-butanetetrabonic acid with 2,2,6,6-tetramethyl-4-piperidinol and 1-tridecanol, 1,2,3,4-butanetetra Carboxylic acid and 1,2,2,6,6-pentamethyl-4-piperidinol and
3, 9-bis (2-hydroxy-1,1-dimethylethyl) -2,4,
Mixed esterified product with 8,10-tetraoxaspiro [5.5] undecane, 1,2,3,4-butanetetracarboxylic acid and 2,2,6,
6-tetramethyl-4-piperidinol and 3,9-bis (2-
Mixed esterified product with hydroxy-1,1-dimethylethyl) -2,4,8,10-tetraoxaspiro [5.5] undecane, dimethyl succinate and 1- (2-hydroxyethyl) -4-hydroxy-2 Polycondensation product with 2,6,6-tetramethylpiperidine, poly [(6-morpholino-1,3,5-triazine-2,4-diyl) ((2,2,6,6-tetramethyl- 4-piperidyl) imino)
Hexamethylene ((2,2,6,6-tetramethyl-4-piperidyl) imino)], poly [(6- (1,1,3,3-tetramethylbutyl) imino-1,3,5-triazine -2,4-diyl ((2,2,6,6-
Tetramethyl-4-piperidyl) imino) hexamethylene
((2,2,6,6-tetramethyl-4-piperidyl) imino)],
Polycondensate of N, N'-bis (2,2,6,6-tetramethyl-4-piperidyl) hexamethylenediamine with 1,2-dibromoethane, N, N ', 4,7-tetrakis [4 , 6-Bis (N-butyl-N- (2,
2,6,6-tetramethyl-4-piperidyl) amino) -1,3,5-triazin-2-yl] -4,7-diazadecane-1,10 diamine,
N, N ', 4-Tris [4,6-bis (N-butyl-N- (2,2,6,6-tetramethyl-4-piperidyl) amino) -1,3,5-triazine-2
-Yl] -4,7-diazadecane-1,10-diamine, N, N ', 4,7-
Tetrakis [4,6-bis (N-butyl-N- (1,2,2,6,6-pentamethyl-4-piperidyl) amino) -1,3,5-triazine-2-
Yl] -4,7-diazadecane-1,10-diamine, N, N ', 4-tris [4,6-bis (N-butyl-N- (1,2,2,6,6-pentamethyl
-4-piperidyl) amino) -1,3,5-triazin-2-yl]-
4,7-diazadecane-1,10-diamine and mixtures thereof.

Particularly preferred hindered amine light stabilizers include the following, and two or more of these can be used. Bis (2,2,6,6-tetramethyl-4-piperidyl) sebacate, bis (1,2,2,6,6-pentamethyl-4
-Piperidyl) sebacate, bis (N-octoxy-2,
2,6,6-tetramethyl-4-piperidyl) sebacate, bis (N-benzyloxy-2,2,6,6-tetramethyl-4-piperidyl) sebacate, bis (N-cyclohexyloxy)
-2,2,6,6-tetramethyl-4-piperidyl) sebacate, bis (1,2,2,6,6-pentamethyl-4-piperidyl)
2- (3,5-di-t-butyl-4-hydroxybenzyl) -2-butylmalonate, bis (1-acyl-2,2,6,6-tetramethyl-4-piperidyl) 2,2- Bis (3,5-di-t-butyl-4
-Hydroxybenzyl) -2-butylmalonate, bis (2,
2,6,6-tetramethyl-4-piperidyl) succinate, 2,2,6,6-tetramethyl-4-piperidyl methacrylate, 4- [3- (3,5-di-t-butyl-4-hydroxy) Phenyl) propionyloxy] -1- [2- (3- (3,5-di-t-butyl)
-4- -Hydroxyphenyl) propionyloxy) ethyl] -2,2,6,6-tetramethylpiperidine, 2-methyl-2- (2,
2,6,6-tetramethyl-4-piperidyl) amino-N- (2,2,6,
6-tetramethyl-4-piperidyl) propionamide, tetrakis (2,2,6,6-tetramethyl-4-piperidyl) 1,
2,3,4-butanetetracarboxylate,

Tetrakis (1,2,6,6-pentamethyl-4-piperidyl) 1,2,3,4-butanetetracarboxylate,
Mixed esterified product of 1,2,3,4-butanetetracarboxylic acid and 1,2,2,6,6-pentamethyl-4-piperidinol and 1-tridecanol, 1,2,3,4-butanetetracarboxylic acid And two,
Mixed esterified product of 2,6,6-tetramethyl-4-piperidinol and 1-tridecanol, 1,2,3,4-butanetetracarboxylic acid and 1,2,2,6,6-pentamethyl-4-piperidinol And a mixed esterified product with 3,9-bis (2-hydroxy-1,1-dimethylethyl) -2,4,8,10-tetraoxaspiro [5.5] undecane, 1,2,3,4- Butanetetracarboxylic acid and 2,2,6,6-tetramethyl-4-piperidinol and 3,9-
Bis (2-hydroxy-1,1-dimethylethyl) -2,4,8,10-
Mixed esterified product with tetraoxaspiro [5.5] undecane, polycondensate of dimethyl succinate and 1- (2-hydroxyethyl) -4-hydroxy-2,2,6,6-tetramethylpiperidine, poly [ (6-morpholino-1,3,5-triazine-
2,4-diyl) ((2,2,6,6-tetramethyl-4-piperidyl) imino) hexamethylene ((2,2,6,6-tetramethyl-4
-Piperidyl) imino)], poly [(6- (1,1,3,3-tetramethylbutyl) -1,3,5-triazine-2,4-diyl) ((2,2,
6,6-tetramethyl-4-piperidyl) imino) hexamethylene ((2,2,6,6-tetramethyl-4-piperidyl) imino)] and the like.

The stabilizer composition of the present invention comprises the above-mentioned phosphites (I) and at least one selected from phenol-based stabilizers, sulfur-based stabilizers, phosphorus-based stabilizers and hindered amine-based stabilizers. It is characterized by containing various kinds of stabilizers, the content ratio of which is by weight,
Usually, it is about 10: 1 to 1:20, preferably about 4: 1 to 1:10, and more preferably about 2: 1 to 1: 3. Further, the content ratio of each component to the phosphites (I), when contained, is usually 10: 1 to 10 by weight.
It is about 1:10, and the total content of each is usually
Within the above range.

The stabilizer composition of the present invention may further contain, if necessary, further additives such as an ultraviolet absorber, a light stabilizer other than a hindered amine, a peroxide scavenger, a polyamide stabilizer, a hydroxylamine, a lubricant, a plasticizer. Agents, flame retardants, nucleating agents, metal deactivators, antistatic agents, pigments, fillers, pigments, antiblocking agents, surfactants, processing aids, foaming agents, emulsifiers, brighteners, calcium stearate, hydro Neutralizing agents such as talcite, and color improvers such as 9,10-dihydro-9-oxa-10-phosphophenanthrene-10-oxide; U.S. Pat.Nos. 4,325,853 and 4,338,244
No. 5,175,312, 5,216,053, 5,252,643, DE-A-4,316,611, 4,316,622, 4,316,876, EP-A-589,839, 591,102, CA-2, 132,132, etc. And co-stabilizers such as indolines.

Here, examples of the ultraviolet absorber include the following. (1) Examples of salicylate derivatives phenyl salicylate, 4-t-butylphenyl salicylate, 2,4-di-t-butylphenyl 3 ′, 5′-di-t-butyl-4′-hydroxybenzoate, 4-t- Octylphenyl salicylate, bis (4-t-butylbenzoyl) resorcinol, benzoylresorcinol, hesisadecyl
3 ', 5'-di-t-butyl-4'-hydroxybenzoate,
Octadecyl 3 ', 5'-di-t-butyl-4'-hydroxybenzoate, 2-methyl-4,6-di-t-butylphenyl 3',
5'-di-t-butyl-4'-hydroxybenzoate and mixtures thereof. (2) Examples of 2-hydroxybenzophenone derivatives 2,4-dihydroxybenzophenone, 2-hydroxy-4-methoxybenzophenone, 2-hydroxy-4-octoxybenzophenone, 2,2′-dihydroxy-4-methoxybenzophenone, bis ( 5-benzoyl-4-hydroxy-2-methoxyphenyl) methane, 2,2 ', 4,4'-tetrahydroxybenzophenone and mixtures thereof.

(3) Examples of 2- (2′-hydroxyphenyl) benzotriazole 2- (2-hydroxy-5-methylphenyl) benzotriazole, 2- (3 ′, 5′-di-t-butyl-2) '-Hydroxyphenyl) benzotriazole, 2- (5'-t-butyl-2'-hydroxyphenyl) benzotriazole, 2- (2'-hydroxy-
5'-t-octylphenyl) benzotriazole, 2- (3-t-
Butyl-2-hydroxy-5-methylphenyl) -5-chlorobenzotriazole, 2- (3'-s-butyl-2'-hydroxy-
5'-t-butylphenyl) benzotriazole, 2- (2'-hydroxy-4'-octyloxyphenyl) benzotriazole, 2- (3 ', 5'-di-t-amyl-2'-hydroxyphenyl) Benzotriazole, 2- [2'-hydroxy-3 ', 5'-bis (α, α-dimethylbenzyl) phenyl] -2H-benzotriazole, 2-[(3'-t-butyl-2'-hydroxyphenyl ) -5 '-(2-Octyloxycarbonylethyl) phenyl] -5-chlorobenzotriazole, 2- [3'-t-butyl-5'-
[2- (2-ethylhexyloxy) carbonylethyl] -2'-
Hydroxyphenyl] -5-chlorobenzotriazole, 2-
[3'-t-butyl-2'-hydroxy-5 '-(2-methoxycarbonylethyl) phenyl] -5-chlorobenzotriazole, 2-
[3'-t-butyl-2'-hydroxy-5 '-(2-methoxycarbonylethyl) phenyl] benzotriazole, 2- [3'-t-butyl-2'-hydroxy-5- (2-octyloxy Carbonylethyl) phenyl] benzotriazole, 2- [3'-t-butyl
-2'-Hydroxy-5 '-[2- (2-ethylhexyloxy) carbonylethyl] phenyl] benzotriazole, 2- [2-
Hydroxy-3- (3,4,5,6-tetrahydrophthalimidomethyl) -5-methylphenyl] benzotriazole, 2- (3,5-
Di-t-butyl-2-hydroxyphenyl) -5-chlorobenzotriazole, 2- (3'-dodecyl-2'-hydroxy-5'-methylphenyl) benzotriazole and 2- [3'-t-butyl
-2'-Hydroxy-5 '-(2-isooctyloxycarbonylethyl) phenyl] benzotriazole mixture, 2,2'
-Methylenebis [6- (2H-benzotriazol-2-yl)-
4- (1,1,3,3-tetramethylbutyl) phenol, 2,2'-
Methylenebis [4-t-butyl-6- (2H-benzotriazole
2-yl) phenol], poly (3-11) (ethylene glycol) and 2- [3'-t-butyl-2'-hydroxy-5 '-(2-methoxycarbonylethyl) phenyl] benzotriazole Condensate, poly (3-11) (ethylene glycol) with methyl 3- [3- (2H-benzotriazol-2-yl) -5-t-butyl-4-hydroxyphenyl] propionate, 2- Ethylhexyl 3- [3-t-butyl-5- (5-chloro-2
H-benzotriazol-2-yl) -4-hydroxyphenyl] propionate, octyl 3- [3-t-butyl-5- (5-
Chloro-2H-benzotriazol-2-yl) -4-hydroxyphenyl] propionate, methyl 3- [3-t-butyl-5
-(5-chloro-2H-benzotriazol-2-yl) -4-hydroxyphenyl] propionate, 3- [3-t-butyl-5- (5-
Chloro-2H-benzotriazol-2-yl) -4-hydroxyphenyl] propionic acid and mixtures thereof.

Particularly preferred UV absorbers include:
The following are mentioned, and these can be used in combination of two or more. Phenyl salicylate, 4-t-butylphenyl salicylate, 2,4-di-t-butylphenyl 3 ', 5'-di-t-butyl-4'-hydroxybenzoate, 4-t-octylphenyl salicylate, 2,4 -Dihydroxybenzophenone, 2-
Hydroxy-4-methoxybenzophenone, 2-hydroxy-
4-octoxybenzophenone, 2,2'-dihydroxy-4-
Methoxybenzophenone, bis (5-benzoyl-4-hydroxy-2-methoxyphenyl) methane, 2,2 ', 4,4'-tetrahydroxybenzophenone, 2- (2-hydroxy-5-methylphenyl) benzotriazole, 2 -(3 ', 5'- di-t-
Butyl-2'-hydroxyphenyl) benzotriazole,
2- (5'-t-butyl-2'-hydroxyphenyl) benzotriazole, 2- (2'-hydroxy-5'-t-octylphenyl) benzotriazole, 2- (3-t-butyl-2-hydroxy -Five-
Methylphenyl) -5-chlorobenzotriazole, 2- (3'-
s-butyl-2'-hydroxy-5'-t-butylphenyl) benzotriazole, 2- (2'-hydroxy-4'-octyloxyphenyl) benzotriazole, 2- (3 ', 5'-di-t -Amyl-2'-hydroxyphenyl) benzotriazole, 2-
[2'-hydroxy-3 ', 5'-bis (α, α-dimethylbenzyl) phenyl] -2H-benzotriazole and the like.

Examples of the light stabilizer other than the hindered amine include the following. (1) Examples of acrylate light stabilizers Ethyl α-cyano-β, β-diphenyl acrylate, isooctyl α-cyano-β, β-diphenyl acrylate, methyl α-carbomethoxycinnamate, methyl α-cyano-β-methyl -P-methoxycinnamate, butyl α-cyano-β-methyl-p-methoxycinnamate, methyl α-carbomethoxy-p-
Methoxycinnamate and N- (β-carbomethoxy-
β-cyanovinyl) -2-methylindoline and mixtures thereof. (2) Examples of nickel-based light stabilizers Nickel complexes of 2,2'-thiobis- [4- (1,1,3,3-tetramethylbutyl) phenol], nickel dibutyldithiocarbamate, nickel salts of monoalkyl esters , Nickel complexes of ketoxime and mixtures thereof.

(3) Examples of oxamide light stabilizers 4,4'-dioctyloxyoxanilide, 2,2'-diethoxyoxanilide, 2,2'-dioctyloxy-5,5'-di- t-
Butylanilide, 2,2'-didodecyloxy-5,5'-di-t-
Butylanilide, 2-ethoxy-2'-ethyloxanilide,
N, N'-bis (3-dimethylaminopropyl) oxamide, 2
-Ethoxy-5-t-butyl-2'-ethoxyanilide, 2-ethoxy-5,4'-di-t-butyl-2'-ethyloxanilide and mixtures thereof. (4) Examples of 2- (2-hydroxyphenyl) -1,3,5-triazine light stabilizers 2,4,6-tris (2-hydroxy-4-octyloxyphenyl) -1,3,5- Triazine, 2- (2-hydroxy-4-octyloxyphenyl) -4,6-bis (2,4-dimethylphenyl) -1,
3,5-triazine, 2- [2,4-dihydroxyphenyl-4,6-
Bis (2,4-dimethylphenyl) -1,3,5-triazine, 2,4-
Bis (2-hydroxy-4-propyloxyphenyl) -6-
(2,4-dimethylphenyl) -1,3,5-triazine, 2- (2-hydroxy-4-octyloxyphenyl) -4,6-bis (4-methylphenyl) -1,3,5-triazine , 2- (2-hydroxy-4
-Dodecyloxyphenyl) -4,6-bis (2,4-dimethylphenyl) -1,3,5-triazine, 2- [2-hydroxy-4- (2-hydroxy-3-butyloxypropoxy) phenyl] -4,6-
Bis (2,4-dimethylphenyl) -1,3,5-triazine, 2- [2
-Hydroxy-4- (2-hydroxy-3-octyloxypropoxy) phenyl] -4,6-bis (2,4-dimethylphenyl)-
1,3,5-triazine and mixtures thereof.

Examples of the metal deactivator include the following. N, N'-diphenyloxamide, N-salicyral-N'-salicyloylhydrazine, N, N'-
Bis (salicyloyl) hydrazine, N, N'-bis (3,5-di
-t-butyl-4-hydroxyphenylpropionyl) hydrazine, 3-salicyloylamino-1,2,4-triazole,
Bis (benzylidene) oxalyl dihydrazide, oxanilide, isophthaloyl dihydrazide, sebacoyl bisphenyl hydrazide, N, N'-bis (salicyloyl) oxalyl dihydrazide, N, N'-bis (salicyloyl) thiopropionyl dihydrazide and mixtures thereof.

Examples of peroxide scavengers include esters of β-thiodipropionic acid, mercaptobenzimidazole, zinc salts of 2-mercaptobenzimidazole, zinc salts of dibutyldithiocarbamic acid, dioctadecyl disulfide, pentaerythritol tetrakis (β -Dodecylmercapto) propionate and mixtures thereof. Examples of the polyamide stabilizer include copper or divalent manganese salts of iodides or phosphorus compounds, and mixtures thereof. Examples of the hydroxyamine include, for example, N, N-dibenzylhydroxyamine, N, N-diethylhydroxyamine, N, N-
Dioctylhydroxyamine, N, N-dilaurylhydroxyamine, N, N-ditetradecylhydroxyamine, N, N-
Examples include dihexadecylhydroxyamine, N, N-dioctadecylhydroxyamine, N-hexadecyl-N-octadecylhydroxyamine, N-heptadecyl-N-octadecylhydroxyamine, and mixtures thereof. Examples of the neutralizing agent include calcium stearate, zinc stearate, magnesium stearate, hydrotalcite (basic magnesium aluminum hydroxy carbonate hydrate), calcium oxide, melamine, amine, polyamide, polyurethane and mixtures thereof. And the like. Examples of the lubricant include aliphatic hydrocarbons such as paraffin and wax, and C8
To 22 higher aliphatic acids, higher aliphatic metal salts (Al, Ca, Mg, Zn) having 8 to 22 carbon atoms, aliphatic alcohols having 8 to 22 carbon atoms, polyglycols, higher 4 to 22 carbon atoms Esters of fatty acids and aliphatic monohydric alcohols having 4 to 18 carbon atoms, higher aliphatic amides having 8 to 22 carbon atoms, silicone oils, rosin derivatives and the like can be mentioned.

Examples of the nucleating agent include the following. Sodium 2,2'-methylenebis
(4,6-di-t-butylphenyl) phosphate, [phosphoric acid
-2,2'-Methylenebis (4,6-di-t-butylphenyl)]
Dihydroxyaluminum, bis [2,2'-methylenebis (4,6-di-t-butylphenyl) phosphate] hydroxyaluminum, tris [-2,2'-methylenebisphosphate
(4,6-di-t-butylphenyl)] aluminum, metal salts of benzoic acid such as sodium bis (4-t-butylphenyl) phosphate and sodium benzoate, aluminum p-t-butylbenzoate, 1,3: 2,4-bis (O-benzylidene) sorbitol, 1,3: 2,4-bis (O-methylbenzylidene) sorbitol, 1,3: 2,4-bis (O-ethylbenzylidene) sorbitol, 1,3- O-3,4-dimethylbenzylidene-
2,4-O-benzylidene sorbitol, 1,3-O-benzylidene-2,4-O-3,4-dimethylbenzylidene sorbitol, 1,
3: 2,4-bis (O-3,4-dimethylbenzylidene) sorbitol, 1,3-Op-chlorobenzylidene-2,4-O-3,4-dimethylbenzylidenesorbitol, 1,3-O-3, 4-dimethylbenzylidene-2,4-Op-chlorobenzylidene sorbitol, 1,
3: 2,4-bis (Op-chlorobenzylidene) sorbitol and mixtures thereof. Examples of the filler include calcium carbonate, silicate, glass fiber, asbestos, talc, kaolin, mica, barium sulfate, carbon black, carbon fiber, zeolite, and a mixture thereof. Of these additives, those preferably used are ultraviolet absorbers, peroxide scavengers and neutralizers.

The stabilizer composition of the present invention comprises a phosphite (I), a phenol stabilizer, a sulfur stabilizer,
It can be produced by blending at least one stabilizer selected from a phosphorus-based stabilizer and a hindered amine-based stabilizer with other additives used as necessary. In the compounding, any known method and apparatus for obtaining a homogeneous mixture can be used.

The stabilizer composition of the present invention is effective for stabilizing organic materials against thermal deterioration and oxidative deterioration. Examples of the organic materials that can be stabilized by the present invention include the following, each of which can stabilize a single material or a mixture of two or more, but is limited to these organic materials. It is not something to be done.

(1) Polyethylene, for example, high density polyethylene (HD-PE), low density polyethylene (LD-P)
E), linear low density polyethylene (LLDPE), (2)
Polypropylene, (3) methylpentene polymer, (4) E
EA (ethylene / ethyl acrylate copolymer) resin, (5)
Ethylene / vinyl acetate copolymer resin, (6) polystyrenes, for example, polystyrene, poly (p-methylstyrene), poly (α-methylstyrene), (7) AS (acrylonitrile / styrene copolymer) resin, (8) ABS (Acrylonitrile / butadiene / styrene copolymer) resin,
(9) AAS (special acrylic rubber / acrylonitrile / styrene copolymer) resin, (10) ACS (acrylonitrile / chlorinated polyethylene / styrene copolymer) resin,

(11) chlorinated polyethylene, polychloroprene, chlorinated rubber, (12) polyvinyl chloride, polyvinylidene chloride, (13) methacrylic resin, (14) ethylene / vinyl alcohol copolymer resin, (15) fluororesin , (16) polyacetal, (17) grafted polyphenylene ether resin and polyphenylene sulfide resin, (18) polyurethane, (19) polyamide, (20) polyester resin, such as polyethylene terephthalate, polybutylene terephthalate,

(21) polycarbonate, (22) polyacrylate, (23) thermoplastic resin such as polysulfone, polyetheretherketone, polyethersulfone, (24) aromatic polyester resin, (25) epoxy resin, (26) Diallyl phthalate prepolymer, (27) silicone resin, (28) unsaturated polyester resin, (29) acryl-modified benzoguanamine resin, (30) benzoguanamine / melamine resin, (31) thermosetting resin such as urea resin,

(32) polybutadiene, (33) 1,2-polybutadiene, (34) polyisoprene, (35) styrene / butadiene copolymer, (36) butadiene / acrylonitrile copolymer, (37) ethylene / propylene copolymer Polymer, (3
8) Silicone rubber, (39) Epichlorohydrin rubber, (4
0) acrylic rubber, (41) natural rubber,

(42) Chlorine rubber paint, (43) Polyester resin paint, (44) Urethane resin paint, (45) Epoxy resin paint, (46) Acrylic resin paint, (47) Vinyl resin paint,
(48) amino alkyd resin paint, (49) alkyd resin paint, (50) nitrocellulose resin paint, (51) oil-based paint,
(52) Wax, (53) Lubricating oil, etc.

Among them, thermoplastic resins, particularly polyethylene, for example, polyolefins such as HD-PE, LD-PE, LLDPE and polypropylene, and engineering resins such as polyamide, polyethylene terephthalate, polybutylene terephthalate and polycarbonate are preferably used. These polyolefins are not particularly limited, and may be, for example, those obtained by radical polymerization or those produced by polymerization using a catalyst containing a metal belonging to Group IVb, Vb, VIb or VIII of the periodic table. The metal-containing catalyst may be a metal complex having one or more ligands, for example, oxides, halogen compounds, alcoholates, esters, aryls, etc., which are coordinated by π or σ bonds. Magnesium chloride, titanium chloride,
It may be supported on a substrate such as alumina or silicon oxide. As the polyolefin, those produced using, for example, a Ziegler-Natta catalyst, a TNZ catalyst, a metallocene catalyst, a Phillips catalyst or the like are preferably used. The engineering resin is not particularly limited. For example, a polyamide resin having an amide bond in a polymer chain and capable of being heated and melted may be used. For example, those produced by any method such as condensation reaction of diamines and dicarboxylic acids, condensation reaction of aminocarboxylic acids, ring-opening polymerization of lactams, and the like, typical examples of which are nylon 66, nylon 69, nylon 610,
Nylon 612, poly-bis- (p-aminocyclohexyl) methandodecamide, nylon 46, nylon 6,
Nylon 12, nylon 66/6, which is a copolymer of nylon 66 and nylon 6, and copolymers such as nylon 6/12. As the polyester resin, any resin having an ester bond in the polymer chain and capable of being heated and melted may be used, and examples thereof include polyesters obtained by polycondensation of dicarboxylic acids and dihydroxy compounds, and the like. Homopolyesters, copolyesters Any of these may be used. Further, as the polycarbonate resin, any resin having a carbonate bond in the polymer chain and any material that can be heated and melted may be used.
A polycarbonate obtained by reacting an aromatic hydroxy compound or a small amount of a polyhydroxy compound with a carbonate precursor such as phosgene or diphenyl carbonate in the presence of an acid acceptor and a molecular weight modifier is exemplified. The polycarbonate resin may be linear or branched, and may be a copolymer.

When the stabilizer composition of the present invention is added to stabilize an organic material, the stabilizer composition of the present invention is converted to phosphite (I) based on 100 parts by weight of the organic material. , Usually about 0.005 to 5 parts by weight, preferably 0.03 to
About 3 parts by weight, more preferably about 0.05 to 1 part by weight is blended. If the amount used is less than 0.005 parts by weight, the stabilizing effect is not always sufficient, and if it exceeds 5 parts by weight, the effect corresponding to the improvement cannot be obtained, which is economically disadvantageous.

In stabilizing the organic material, the stabilizer composition of the present invention may be directly added to the organic material, or the phosphites (components of the stabilizer composition of the present invention) may be used. I), at least one stabilizer selected from phenolic stabilizers, sulfur-based stabilizers, phosphorus-based stabilizers, hindered amine-based stabilizers, and other additives used as needed, simultaneously or separately. You may mix. In the compounding, any known method and apparatus for obtaining a homogeneous mixture can be used. For example, when the stabilizer composition of the present invention is blended with a solid organic material, it can be directly dry-blended with the solid material, or the stabilizer composition of the present invention can be used in the form of a master batch to prepare Can also be blended. In the case of a liquid polymer, it can be mixed with a polymer solution during or immediately after polymerization in the form of a solution or dispersion of the stabilizer composition of the present invention. On the other hand, when the organic material is a liquid such as oil, the stabilizer composition of the present invention can be directly added and blended, or the stabilizer composition of the present invention can be dissolved or suspended in a liquid medium. It can also be added in a hot state.

[0088]

The stabilizer composition of the present invention has excellent performance in stabilizing various organic materials such as thermoplastic resins such as polyolefin, and the organic material containing this stabilizer composition is Heat during production, processing, and even use,
It is stable against deterioration due to oxidation, light and the like, and becomes a high quality product.

[0089]

EXAMPLES The present invention will be described in more detail with reference to the following Examples, but it should not be construed that the invention is limited thereto.

<Test Stabilizer> Chemical-1: 2,4,8,10-tetra-t-butyl-6- [3- (3-methyl-4-hydroxy-5-t-butylphenyl) propoxy]
Dibenzo [d, f] [1,3,2] dioxaphosphepin (compound 1) P-1: tris (2,4-di-t-butylphenyl) phosphite AO-1: n-octadecyl 3- (3,5-di-t-butyl-4-hydroxyphenyl) propionate AO-2: neopentanetetrayltetrakis (3,5-diphenyl
-t-butyl-4-hydroxydihydrocinnamate) S-1: neopentanetetrayltetrakis (3-laurylthiopropionate) HA-1: poly [(6- (1,1,3,3-tetramethyl) Butyl) -1,
3,5-triazine-2,4-diyl) ((2,2,6,6-tetramethyl
-4- piperidyl) imino) hexamethylene ((2,2,6,6-
Tetramethyl-4-piperidyl) imino)] HA-2: bis (2,2,6,6-tetramethyl-4-piperidyl) sebacate

Reference Example 1: 2,4,8,10-tetra-t-butyl-6
-[3- (3-Methyl-4-hydroxy-5-t-butylphenyl)
Preparation of propoxy] dibenzo [d, f] [1,3,2] dioxaphosphepin (compound 1) , 5'-Tetra-t-butylbiphenyl-2,
After adding 12 g of 2'-diol and 200 ml of toluene, 4 g of phosphorus trichloride was added with stirring, and then triethylamine was added.
6.5 g was added and the mixture was kept at 80 ° C. for 4 hours. After cooling to room temperature, 50 ml of toluene and 3- (3-t-butyl-4-hydroxy-5
6.5 g of (methylphenyl) propanol was added, followed by 3.3 g of triethylamine, and the mixture was kept at 80 ° C. for 4 hours.
Then, after cooling to room temperature, the generated triethylamine hydrochloride was filtered and washed. After concentrating the filtrate, the residue was purified by silica gel chromatography to obtain white crystals. Mass spectrometry value (FD-MS): m / z 660

¹ H-NMR (CDCl ₃ ) 1.34 (s, 18H), 1.37 (s, 9H), 1.49 (s, 18H), 1.84 (m, 2H),
2,18 (s, 3H), 2.51 (t, 2H), 3.81 (dt, 2H), 4.59 (s, 1H),
6.76 (s, 1H), 6.89 (S, 1H), 7.16 (d, 2H), 7.42 (d, 2H) 31 P-NMR (CDCl 3) 136.4ppm

Example 1: Processing stability test of high-density polyethylene [combination] 100 parts by weight of high-density polyethylene Test stabilizer: parts by weight described in Table 1

Under a nitrogen atmosphere, using a Labo Plastomill,
Time when the above compound is kneaded at 220 ° C and 100 rpm and the torque value due to cross-linking is maximum (gel build-up time (min))
Was measured, and the results are shown in Table 1. The longer the gel-up time, the more the crosslinking at the time of kneading is suppressed, which means that the processing stability is excellent.

[0095]

TABLE 1 implementation example comparisons Example 1 1 2 test stabilizers of -1 0.1 - - AO-1 0.1 - 0.1 P-1 - - 0.1 processing stability> 60 3 3.5

Example 2: Processing stability test of polypropylene [Compound] 100 parts by weight of polypropylene (block) Test stabilizer: parts by weight described in Table 2

Using a Labo Plastomill, under sealed condition, 200
The mixture was kneaded at 80 ° C. and 80 rpm, and the retention (%) of the torque value after 30 minutes with respect to the torque value after 5 minutes was measured. The results are shown in Table 2. The higher the retention ratio, the more the decomposition during kneading is suppressed, and the better the processing stability.

[0098]

TABLE 2 implementation example comparisons Example 1 2 3 1 2 3 4 test stabilizers of -1 0.1 0.1 0.1 0.2 - - - AO-2 0.1 - - - 0.2 - - P-1 - 0.1 - - - 0.2 − S−1 − − 0.1 − − − 0.2 Retention 71 71 31 32 24 19 23

Example 3: Thermal stability test of polypropylene [Compound] Polypropylene (block) 100 parts by weight Calcium stearate 0.05 part by weight Test stabilizer Stabilizers listed in Table 3

Using an extruder, the above compound was granulated at 230 ° C., and the mixture was granulated by an injection molding machine at 230 ° C. into a 1 mm thick sheet (40 m
m × 60 mm). This was placed in an oven at 160 ° C., and the time (hour) until 30% of the test piece area became brittle was measured. The results are shown in Table 3.

[0101]

TABLE 3 implementation example comparisons Example 1 1 2 test stabilizers of -1 0.1 0.1 - S-1 0.2 - 0.2 Thermal stability 352 167 72

Example 4: Weather resistance test [Compound] 100 parts by weight of polypropylene (block) 0.05 parts by weight of calcium stearate Test stabilizer Stabilizers described in Table 4

Using an extruder, the above compound was granulated at 230 ° C., and a 1 mm thick sheet was prepared using an injection molding machine at 240 ° C. This was irradiated with light by a sunshine weather o-meter (black panel temperature: 83 ° C, no rain), and the hue after irradiation for 180 hours (ΔE: hue difference from standard white plate, L, a, b value of white plate was 96.1) , -0.1, 1.9). The results are shown in Table 4.

[0104]

Table 4 implementation example comparisons Example 1 2 3 4 1 2 test stabilizers of -1 0.2 0.2 0.05 0.05 - - HA -1 0.1 - 0.1 - 0.1 - HA-2 - 0.1 - 0.1 - 0.1 AO-2 − − 0.05 0.05 − − Hue (ΔE ) 14.0 16.2 16.1 16.1 18.0 17.5

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁶ Identification code FI C08K 5/49 C08K 5/49 5/527 5/527 C08L 101/00 C08L 101/00 C09K 15/32 C09K 15/32 C

Claims (12)

[Claims] 1. The compound of the general formula (I) (Wherein R ¹ , R ² , R ⁴ and R ⁵ are each independently a hydrogen atom, an alkyl group having 1 to 8 carbon atoms,
Represents an alkylcycloalkyl group having 6 to 12 carbon atoms, an aralkyl group having 7 to 12 carbon atoms or a phenyl group, and R ³ represents a hydrogen atom or an alkyl group having 1 to 8 carbon atoms. X is a mere bond, a sulfur atom or -CH
R ^{6 represents a} group (R ⁶ represents a hydrogen atom, an alkyl group having 1 to 8 carbon atoms or a cycloalkyl group having 5 to 8 carbon atoms).
A represents an alkylene group having 2 to 8 carbon atoms or a * -COR ⁷ -group (R ⁷ represents a mere bond or an alkylene group having 1 to 8 carbon atoms, and * represents an oxygen-bonded group). .
One of Y and Z is a hydroxyl group and has 1 to 1 carbon atoms.
8 represents an alkoxy group or an aralkyloxy group having 7 to 12 carbon atoms, and the other represents a hydrogen atom or an alkyl group having 1 to 8 carbon atoms. ) Phosphites represented by
Phenol stabilizer, sulfur stabilizer, phosphorus stabilizer,
A stabilizer composition comprising at least one stabilizer selected from hindered amine stabilizers. 2. The weight ratio of the phosphites (I) to at least one stabilizer selected from the group consisting of phenol stabilizers, sulfur stabilizers, phosphorus stabilizers, and hindered amine stabilizers is as follows. The stabilizer composition according to claim 1, wherein the ratio is 10: 1 to 1:20. 3. A phosphite (I) according to claim 1 and at least one stabilizer selected from a phenol stabilizer, a sulfur stabilizer, a phosphorus stabilizer and a hindered amine stabilizer. And a method for producing a stabilizer composition. 4. The compounding ratio of the phosphites (I) and at least one stabilizer selected from the group consisting of phenol stabilizers, sulfur stabilizers, phosphorus stabilizers and hindered amine stabilizers is defined as a weight ratio. 4. The method according to claim 3, wherein the ratio is 10: 1 to 1:20. 5. An organic material comprising the phosphites (I) according to claim 1 and a phenol-based stabilizer, a sulfur-based stabilizer,
A method for stabilizing an organic material, comprising adding at least one stabilizer selected from a phosphorus-based stabilizer and a hindered amine-based stabilizer. 6. The weight ratio of the phosphites (I) to at least one stabilizer selected from the group consisting of phenol stabilizers, sulfur stabilizers, phosphorus stabilizers, and hindered amine stabilizers is defined as a weight ratio. 6. The method according to claim 5, wherein the ratio is 10: 1 to 1:20. 7. The method according to claim 5, wherein the organic material is a thermoplastic resin.
7. The stabilizing method according to 6. 8. The method according to claim 7, wherein the thermoplastic resin is a polyolefin or an engineering resin. 9. An organic material comprising the phosphite (I) according to claim 1 and a phenol-based stabilizer, a sulfur-based stabilizer,
A stabilized organic material composition comprising at least one stabilizer selected from a phosphorus-based stabilizer and a hindered amine-based stabilizer. 10. The weight ratio of the phosphites (I) to at least one stabilizer selected from the group consisting of phenol stabilizers, sulfur stabilizers, phosphorus stabilizers and hindered amine stabilizers is defined as a weight ratio. 10. The composition according to claim 9, wherein the ratio is from 10: 1 to 1:20. 11. The organic material is a thermoplastic resin.
11. The composition according to item 10. 12. The composition according to claim 11, wherein the thermoplastic resin is a polyolefin or an engineering resin.