WO2012002372A1

WO2012002372A1 - Thermoplastic polymer composition and processing stabilizer

Info

Publication number: WO2012002372A1
Application number: PCT/JP2011/064780
Authority: WO
Inventors: 木村　由和; 阿波　秀明
Original assignee: 住友化学株式会社
Priority date: 2010-06-28
Filing date: 2011-06-28
Publication date: 2012-01-05
Also published as: TW201204775A

Abstract

Disclosed is a thermoplastic polymer composition containing a specific phenolic compound or organophosphorus compound, maltitol, and a thermoplastic polymer, and also disclosed is a processing stabilizer containing a specific phenolic compound or organophosphorus compound and maltitol. The combination use of the specific phenolic compound or organophosphorus compound with maltitol can improve the processing stability of a thermoplastic polymer composition.

Description

Thermoplastic polymer composition and processing stabilizer

The present invention relates to a thermoplastic polymer composition having excellent processing stability. The invention further relates to a processing stabilizer.

Thermoplastic polymers are widely used in food packaging containers, daily miscellaneous goods and the like because of their excellent transparency and good impact resistance. In the manufacture of such products, the thermoplastic polymer is used as a composition containing additives. As additives for thermoplastic polymers, 2,4-di-t-pentyl-6- [1- (3,5-di-t-pentyl-2-hydroxyphenyl) ethyl] phenyl acrylate, 6- [3- (3-t-butyl-4-hydroxy-5-methylphenyl) propoxy] -2,4,8,10-tetra-t-butyldibenz [d, f] [1,3,2] dioxaphosphine ( This is 6-t-butyl-4- [3-[(2,4,8,10-tetra-t-butyldibenzo [d, f] [1,3,2] dioxaphosphin-6-yl ) Oxy] propyl] -2-methylphenol), octadecyl 3- (3,5-di-t-butyl-4-hydroxyphenyl) propionate, 3,9-bis [2- {3- (3-t -Butyl-4-hydroxy-5-methyl Enyl) propionyloxy} -1,1-dimethylethyl] -2,4,8,10-tetraoxaspiro [5.5] undecane, pentaerythritol tetrakis [3- (3,5-di-t-butyl-4 -Hydroxyphenyl) propionate], tris (2,4-di-t-butylphenyl) phosphite and the like are known (Patent Documents 1 to 6).

Japanese Unexamined Patent Publication No. 1-168643 Japanese Patent Laid-Open No. 10-273494 U.S. Pat. U.S. Pat. No. 3,644,482 JP 59-25826 JP 51-109050 A

A thermoplastic polymer composition with further improved processing stability is desired.

As a result of intensive studies by the present inventors to solve the above problems, the compounds represented by the following formula (1), the compounds represented by the formula (2), the formulas (3) to (7) are shown. It has been found that a thermoplastic polymer composition containing at least one compound selected from the group consisting of compounds represented by formula (8), maltitol, and a thermoplastic polymer exhibits excellent processing stability. It was. Based on such knowledge, the inventors have reached the following invention.

[1] Formula (1):

[In Formula (1),
Each R ¹ and each R ² independently represent a C _1-8 alkyl group, a C _6-12 aryl group, or a C _7-18 aralkyl group.
R ³ represents a hydrogen atom or a C _1-3 alkyl group.
R ⁴ represents a hydrogen atom or a methyl group. ]
A thermoplastic polymer composition comprising a compound represented by the formula: maltitol and a thermoplastic polymer.
[2] The thermoplastic polymer composition according to the above [1], wherein the total amount of the compound represented by the formula (1) and maltitol is 0.001 to 3 parts by weight with respect to 100 parts by weight of the thermoplastic polymer.
[3] A processing stabilizer comprising a compound represented by the formula (1) and maltitol.
[4] The compound represented by the formula (1) is 2,4-di-t-pentyl-6- [1- (3,5-di-t-pentyl-2-hydroxyphenyl) ethyl] phenyl acrylate and 2 Process stabilization according to [3] above, which is at least one selected from the group consisting of -t-butyl-6- (3-t-butyl-2-hydroxy-5-methylbenzyl) -4-methylphenyl acrylate Agent.
[5] The processing stabilizer according to the above [3] or [4], wherein the content of maltitol is 0.1 to 95% by weight in the total of the compound represented by formula (1) and maltitol.
[6] Furthermore, the formula (2):

[In Formula (2),
Each R ⁵ and each R ⁶ independently represent a hydrogen atom or a C _1-6 alkyl group.
L ¹ represents an n-valent C _1-24 alcohol residue which may contain a hetero atom, and n represents an integer of 1 to 4. Here, the alcohol residue represents the remaining group obtained by removing a hydrogen atom from the hydroxy group of the alcohol. ]
The processing stabilizer according to any one of the above [3] to [5], which comprises a compound represented by the formula:
[7] Further, the formulas (3) to (7):

[In the formula (3), each R ⁷ and each R ⁸ independently represent a hydrogen atom, a C _1-9 alkyl group, a C _5-8 cycloalkyl group, a C _6-12 alkylcycloalkyl group, a C _{7- 12} represents an aralkyl group or a phenyl group. ]

[In the formula (4), each R ⁹ independently represents a hydrogen atom, a C _1-9 alkyl group, a C _5-8 cycloalkyl group, a C _6-12 alkylcycloalkyl group, a C _7-12 aralkyl group or Represents a phenyl group. ]

[In the formula (5), each R ¹⁰ independently represents a C _1-18 alkyl group, or a C _1-9 alkyl group, a C _5-8 cycloalkyl group, a C _6-12 alkylcycloalkyl group, and a C _{7. 12} represents a phenyl group which may be substituted with at least one selected from the group consisting of _-12 aralkyl groups. ]

[In Formula (6),
Each R ¹¹ and each R ¹² independently represent a hydrogen atom, a C _1-9 alkyl group, a C _5-8 cycloalkyl group, a C _6-12 alkylcycloalkyl group, a C _7-12 aralkyl group or a phenyl group. To express.
Each L ² independently represents a single bond, a sulfur atom or formula (6a):

{In Formula (6a), R ¹³ and R ¹⁴ each independently represent a hydrogen atom or a C _1-7 alkyl group on condition that the total number of carbon atoms is 7 or less. } Represents a divalent group.
Each L ³ independently represents a C _2-8 alkylene group. ]

[In Formula (7),
Each R ¹⁵ and each R ¹⁶ independently represents a hydrogen atom, a C _1-9 alkyl group, a C _5-8 cycloalkyl group, a C _6-12 alkylcycloalkyl group, a C _7-12 aralkyl group or a phenyl group. To express.
R ¹⁷ is a C _1-8 alkyl group, or at least one selected from the group consisting of a C _1-9 alkyl group, a C _5-8 cycloalkyl group, a C _6-12 alkylcycloalkyl group, and a C _7-12 aralkyl group. Represents an optionally substituted phenyl group.
L ⁴ represents a single bond, a sulfur atom or the formula (7a):

{In Formula (7a), R ¹⁸ and R ¹⁹ each independently represent a hydrogen atom or a C _1-7 alkyl group on condition that the total number of carbon atoms is 7 or less. } Represents a divalent group. ]
The processing stabilizer according to any one of the above [3] to [6], which contains at least one selected from the group consisting of compounds represented by:
[8] The processing stabilizer according to any one of [3] to [6], further comprising a compound represented by formula (3).
[9] A method for producing a thermoplastic polymer composition, comprising mixing the processing stabilizer according to any one of [3] to [8] above and a thermoplastic polymer.
[10] Use of the processing stabilizer according to any one of [3] to [8] above for improving the processing stability of the thermoplastic polymer composition.

[11] Equation (8):

[In Formula (8),
Each R ²⁰ , each R ²¹ , R ²³ and R ²⁴ is independently a hydrogen atom, a C _1-8 alkyl group, a C _5-8 cycloalkyl group, a C _6-12 alkyl cycloalkyl group, a C _7-12 Represents an aralkyl group or a phenyl group.
Each R ²² independently represents a hydrogen atom or a C _1-8 alkyl group.
L ⁵ represents a single bond, a sulfur atom or the formula (8a):

{In Formula (8a), R ²⁵ represents a hydrogen atom, a C _1-8 alkyl group or a C _5-8 cycloalkyl group. } Represents a divalent group.
L ⁶ represents a C _2-8 alkylene group or formula (8b):

{In Formula (8b), L ⁷ represents a single bond or a C _1-8 alkylene group. * Represents bonding to the oxygen atom side. } Represents a divalent group.
One of Z ¹ and Z ² represents a hydroxy group, a C _1-8 alkyl group, a C _1-8 alkoxy group or a C _7-12 aralkyloxy group, and the other represents a hydrogen atom or a C _1-8 alkyl group Represents. ]
A thermoplastic polymer composition comprising a compound represented by the formula: maltitol and a thermoplastic polymer.
[12] The thermoplastic polymer composition according to the above [11], wherein the total amount of the compound represented by the formula (8) and maltitol is 0.001 to 3 parts by weight with respect to 100 parts by weight of the thermoplastic polymer.
[13] A processing stabilizer comprising a compound represented by the formula (8) and maltitol.
[14] The compound represented by the formula (8) is 6- [3- (3-tert-butyl-4-hydroxy-5-methylphenyl) propoxy] -2,4,8,10-tetra-tert-butyldibenz. The processing stabilizer according to the above [13], which is [d, f] [1, 3, 2] dioxaphosphine.
[15] The processing stabilizer as described in [13] or [14] above, wherein the content of maltitol is 0.1 to 95% by weight in the total of the compound represented by formula (8) and maltitol.
[16] The processing stabilizer according to any one of the above [13] to [15], further comprising a compound represented by the formula (2).
[17] The processing stabilizer according to any one of [13] to [16], further comprising at least one selected from the group consisting of compounds represented by formulas (3) to (7): .
[18] The processing stabilizer according to any one of the above [13] to [16], further comprising a compound represented by the formula (3).
[19] A method for producing a thermoplastic polymer composition, comprising mixing the processing stabilizer according to any one of [13] to [18] and a thermoplastic polymer.
[20] Use of the processing stabilizer according to any one of [13] to [18] above for improving the processing stability of the thermoplastic polymer composition.

[21] A thermoplastic polymer composition comprising a compound represented by formula (2), maltitol, and a thermoplastic polymer.
[22] The thermoplastic polymer composition according to the above [21], wherein the total amount of the compound represented by the formula (2) and maltitol is 0.001 to 3 parts by weight with respect to 100 parts by weight of the thermoplastic polymer.
[23] The thermoplastic polymer composition according to the above [21] or [22], wherein the thermoplastic polymer is a styrene-butadiene block copolymer.
[24] A processing stabilizer comprising a compound represented by the formula (2) and maltitol.
[25] A processing stabilizer comprising the compound represented by formula (2) and maltitol.
[26] The compound represented by the formula (2) is octadecyl 3- (3,5-di-t-butyl-4-hydroxyphenyl) propionate, 3,9-bis [2- {3- (3-t- Butyl-4-hydroxy-5-methylphenyl) propionyloxy} -1,1-dimethylethyl] -2,4,8,10-tetraoxaspiro [5.5] undecane and pentaerythritol tetrakis [3- (3 The process stabilizer according to [24] or [25] above, which is at least one selected from the group consisting of 5-di-t-butyl-4-hydroxyphenyl) propionate].
[27] The processing according to any one of [24] to [26] above, wherein the content of maltitol is 0.1 to 95% by weight in the total of the compound represented by formula (2) and maltitol Stabilizer.
[28] The processing stabilizer according to any one of [24] to [27], further comprising a compound represented by the formula (1).
[29] A method for producing a thermoplastic polymer composition, comprising mixing the processing stabilizer according to any one of [24] to [28] and a thermoplastic polymer.
[30] Use of the processing stabilizer according to any one of [24] to [28] above for improving the processing stability of the thermoplastic polymer composition.

[31] A thermoplastic polymer composition comprising at least one selected from the group consisting of compounds represented by formulas (3) to (7), maltitol and a thermoplastic polymer.
[32] The total amount of the compound selected from the group consisting of the compounds represented by formulas (3) to (7) and maltitol is 0.001 to 3 parts by weight with respect to 100 parts by weight of the thermoplastic polymer. [31] The thermoplastic polymer composition according to [31].
[33] The thermoplastic polymer composition according to the above [31] or [32], wherein the thermoplastic polymer is a styrene-butadiene block copolymer.
[34] A processing stabilizer comprising at least one selected from the group consisting of compounds represented by formulas (3) to (7) and maltitol.
[35] A processing stabilizer comprising at least one selected from the group consisting of compounds represented by formulas (3) to (7) and maltitol.
[36] Process stabilization according to [34] or [35] above, wherein at least one selected from the group consisting of compounds represented by formula (3) to formula (7) is a compound represented by formula (3) Agent.
[37] The processing stabilizer according to [36], wherein the compound represented by the formula (3) is tris (2,4-di-t-butylphenyl) phosphite.
[38] A method for producing a thermoplastic polymer composition, comprising mixing the processing stabilizer according to any one of [34] to [37] and a thermoplastic polymer.
[39] Use of the processing stabilizer according to any one of [34] to [37] above for improving the processing stability of the thermoplastic polymer composition.

In the present invention, “C _ab ” means that the carbon number is a to b. Hereinafter, the “compound represented by the formula (1)” or the like may be abbreviated as “compound (1)” or the like. Similarly, “a divalent group represented by the formula (6a)” or the like may be abbreviated as “a divalent group (6a)” or the like.

When at least one selected from the group consisting of compound (1), compound (2), compound (3) to compound (7) or compound (8) and maltitol are used in combination, the processing stability of the thermoplastic polymer composition Can be improved.

Hereinafter, the present invention will be described in order. In the following, the thermoplastic polymer composition of the present invention containing the compound (1) and maltitol as essential components and the processing stabilizer of the present invention will be referred to as “first thermoplastic polymer composition” and “first thermoplastic polymer composition”, respectively. May be referred to as “1 processing stabilizer”.
Further, the thermoplastic polymer composition of the present invention containing the compound (8) and maltitol as essential components and the processing stabilizer of the present invention are respectively referred to as “second thermoplastic polymer composition” and “second thermoplastic polymer composition”. Sometimes referred to as “processing stabilizer”.
Further, the thermoplastic polymer composition of the present invention containing the compound (2) and maltitol as essential components and the processing stabilizer of the present invention are respectively referred to as “third thermoplastic polymer composition” and “third thermoplastic polymer composition”. Sometimes referred to as “processing stabilizer”.
Further, the thermoplastic polymer composition of the present invention containing at least one selected from the group consisting of the compounds (3) to (7) and maltitol as an essential component and the processing stabilizer of the present invention, respectively, It may be referred to as “fourth thermoplastic polymer composition” and “fourth processing stabilizer”.
Here, the “processing stabilizer” means an agent used for improving the processing stability of the thermoplastic polymer composition. Moreover, the processing stability of a thermoplastic polymer composition can be evaluated by the method described in the below-mentioned Example.

The thermoplastic polymer composition of the present invention comprises at least one compound selected from the group consisting of the processing stabilizers of the present invention (that is, compound (1), compound (2), compound (3) to compound (7)). (8) and maltitol). Hereinafter, the processing stabilizer of the present invention will be described first.

One of the characteristics of the first processing stabilizer is that it contains the compound (1). Only 1 type may be used for a compound (1) and it may use 2 or more types together. Hereinafter, the compound (1) will be described in order.

Each R ¹ and each R ^{2 in} Formula (1) each independently represents a C _1-8 alkyl group, a C _6-12 aryl group, or a C _7-18 aralkyl group. There are two R ^{1 s,} but each R ¹ may be the same as or different from each other, preferably the same. The same applies to each R ² .

The C _1-8 alkyl group may be either a chain or a ring, preferably a chain (straight chain or branched chain), more preferably a branched chain. As the C _1-8 alkyl group, a linear C _1-8 alkyl group (for example, methyl group, ethyl group, propyl group, butyl group, pentyl group (also referred to as amyl group)), branched chain C _{3 -8} alkyl group (for example, isopropyl group, isobutyl group, sec-butyl group, t-butyl group, t-pentyl group, 2-ethylhexyl group, etc.), cyclic C _3-8 alkyl group (ie, C _3-8 cycloalkyl group) Group such as cyclopentyl group and cyclohexyl group). Examples of the C _6-12 aryl group include phenyl group, 1-naphthyl group, 2-naphthyl group and the like. Examples of the C _7-18 aralkyl group include a benzyl group, a 1-phenylethyl group, a 2-phenylethyl group, and the like.

Each R ¹ and each R ² are preferably each independently a branched C _3-8 alkyl group, more preferably a C _4-8 alkyl group having a tertiary carbon atom, still more preferably a t-butyl group or A t-pentyl group, particularly preferably a t-pentyl group.

R ³ in the formula (1) represents a hydrogen atom or a C _1-3 alkyl group. The C _1-3 alkyl group may be linear or branched. _{Examples of the} C _1-3 alkyl group include a methyl group, an ethyl group, a propyl group, and an isopropyl group. R ³ is preferably a hydrogen atom or a methyl group.

R ⁴ in formula (1) represents a hydrogen atom or a methyl group, preferably a hydrogen atom.

Examples of the compound (1) include 2,4-di-t-butyl-6- [1- (3,5-di-t-butyl-2-hydroxyphenyl) ethyl] phenyl (meth) acrylate, 2- t-butyl-6- (3-t-butyl-2-hydroxy-5-methylbenzyl) -4-methylphenyl (meth) acrylate, 2,4-di-t-pentyl-6- [1- (3 5-Di-t-pentyl-2-hydroxyphenyl) ethyl] phenyl (meth) acrylate, 2,4-di-t-butyl-6- (3,5-di-t-butyl-2-hydroxy-benzyl) Phenyl (meth) acrylate, 2-t-butyl-6- (3-t-butyl-2-hydroxy-5-methylbenzyl) -4-ethylphenyl (meth) acrylate, 2-t-pentyl-6- (3 -T-pe Such as chill-2-hydroxy-5-methylbenzyl) -4-methylphenyl (meth) acrylate. Here, “(meth) acrylate” means “acrylate and methacrylate”.

Preferred compound (1) is 2,4-di-t-pentyl-6- [1- (3,5-di-t-pentyl-2-hydroxyphenyl) ethyl] phenyl acrylate (hereinafter referred to as “compound (1-1 And 2-t-butyl-6- (3-t-butyl-2-hydroxy-5-methylbenzyl) -4-methylphenyl acrylate (hereinafter referred to as “compound (1-2)”). May be abbreviated as ")". Compound (1-1) is commercially available as Sumilizer (registered trademark) GS (F) (manufactured by Sumitomo Chemical Co., Ltd.), and Compound (1-2) is commercially available as Sumilizer (registered trademark) GM (manufactured by Sumitomo Chemical Co., Ltd.).

Compound (1) may be a commercially available product, or can be produced according to a known method (for example, the method described in JP-A No. 1-168643 or JP-A No. 58-84835).

One of the characteristics of the first processing stabilizer is that it contains maltitol. Maltitol may be either an anhydride or a hydrate. Maltitol is commercially available from, for example, Tokyo Chemical Industry Co., Ltd., and a commercially available product can be used as it is.

The content of maltitol in the first processing stabilizer is preferably 0.1% by weight or more (more preferably 1% by weight or more, further preferably 2% by weight or more) in the total of compound (1) and maltitol. , Particularly preferably 5% by weight or more), preferably 95% by weight or less (more preferably 90% by weight or less, further preferably 75% by weight or less, particularly preferably 50% by weight or less).

The first processing stabilizer may be composed of the compound (1) and maltitol, or may contain other components. For example, the first processing stabilizer may contain the compound (2). Only one type of compound (2) may be used, or two or more types may be used in combination. Hereinafter, the compound (2) will be described in order.

Each R ⁵ and each R ⁶ in the formula (2) each independently represents a hydrogen atom or a C _1-6 alkyl group. When n is 2 or more, each R ⁵ may be the same as or different from each other, preferably the same. The same applies to each R ⁶ . The C _1-6 alkyl group may be either chain or cyclic, and the chain may be either linear or branched. Examples of the C _1-6 alkyl group include a linear C _1-6 alkyl group (methyl group, ethyl group, propyl group, butyl group, pentyl group, hexyl group), branched C _3-6 alkyl group (for example, , Isopropyl group, isobutyl group, t-butyl group, isopentyl group, t-pentyl group, t-hexyl group), cyclic C _3-6 alkyl group (ie C _3-6 cycloalkyl group such as cyclopentyl group, cyclohexyl group) ). Each R ⁵ and each R ⁶ are independently preferably a linear C _1-6 alkyl group or a branched C _3-6 alkyl group, more preferably a methyl group or a t-butyl group. More preferably, each R ⁵ and each R ⁶ are all t-butyl groups.

L ¹ in the formula (2) represents an n-valent C _1-24 alcohol residue which may contain a hetero atom, and n represents an integer of 1 to 4. Examples of the hetero atom include an oxygen atom, a sulfur atom, and a nitrogen atom, and these hetero atoms may be replaced with carbon atoms in the n-valent C _1-24 alcohol residue. That is, the n-valent C _1-24 alcohol residue represents —O—, —S—, —NR— (wherein R represents a hydrogen atom or another substituent (eg, a C _1-6 alkyl group)). ) And the like. As a hetero atom, an oxygen atom is preferable.

The n-valent C _1-24 alcohol residue (n = 1 to 4) may be either linear or cyclic, or a combination thereof. The chain may be linear or branched.

Examples of monovalent C _1-24 alcohol residues include methanol, ethanol, propanol, isopropanol, butanol, t-butanol, hexanol, octanol, decanol, dodecanol, tetradecanol, hexadecanol, octadecanol and the like. Residue.

Examples of the divalent C _1-24 alcohol residue include ethylene glycol, 1,2-propanediol, 1,3-propanediol, 1,4-butanediol, 1,5-pentanediol, 1,6- Hexanediol, 1,8-octanediol, 1,10-decanediol, 1,12-dodecanediol, 1,14-tetradecanediol, 1,16-hexadecanediol, diethylene glycol, triethylene glycol, 3,9-bis ( And residues such as 1,1-dimethyl-2-hydroxyethyl) -2,4,8,10-tetraoxaspiro [5.5] undecane.

Examples of the trivalent C _1-24 alcohol residue include residues such as glycerol.

_{Examples of the} tetravalent C _1-24 alcohol residue include residues such as erythritol and pentaerythritol.

Examples of the compound (2) include 3- (3,5-di-t-butyl-4-hydroxyphenyl) propionic acid and 3- (3-t-butyl-4-hydroxy-5-methylphenyl) propionic acid. Or esters of 3- (3,5-dicyclohexyl-4-hydroxyphenyl) propionic acid with mono- or polyhydric alcohols. Examples of the monohydric or polyhydric alcohol include methanol, ethanol, octanol, octadecanol, ethylene glycol, 1,3-propanediol, 1,4-butanediol, 1,6-hexanediol, 1,9. -Nonanediol, neopentyl glycol, diethylene glycol, thioethylene 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, 3,9-bis (1,1- Dimethyl-2-hydroxy Ethyl) -2,4,8,10 such tetraoxaspiro [5.5] undecane and mixtures thereof.

Preferred compound (2) is octadecyl 3- (3,5-di-t-butyl-4-hydroxyphenyl) propionate (hereinafter sometimes abbreviated as “compound (2-1)”), 3,9-bis. [2- {3- (3-tert-butyl-4-hydroxy-5-methylphenyl) propionyloxy} -1,1-dimethylethyl] -2,4,8,10-tetraoxaspiro [5.5] Undecane (hereinafter sometimes abbreviated as “compound (2-2)”) and pentaerythritol tetrakis [3- (3,5-di-t-butyl-4-hydroxyphenyl) propionate] (hereinafter “compound (2- 3) ". Compound (2-1) is “Irganox (registered trademark) 1076” (manufactured by BASF), compound (2-2) is “Smilizer (registered trademark) GA-80” (manufactured by Sumitomo Chemical), compound ( 2-3) is commercially available as “Irganox (registered trademark) 1010” (manufactured by BASF).

Compound (2) may be a commercially available product, or may be produced according to a known method (for example, the method described in US Pat. No. 3,330,859, US Pat. No. 3,644,482 or JP-A-59-25826). Can do.

The first processing stabilizer may further contain at least one selected from the group consisting of compound (3) to compound (7). Only one of compound (3) to compound (7) may be used, or two or more may be used in combination. Hereinafter, the compounds (3) to (7) will be described in order.

In the formula (3), each R ⁷ and each R ⁸ are each independently a hydrogen atom, a C _1-9 alkyl group, a C _5-8 cycloalkyl group, a C _6-12 alkylcycloalkyl group, a C _7-12 Represents an aralkyl group or a phenyl group. There are three R ^{7 s} , and each R ⁷ may be the same as or different from each other, preferably the same. The same applies to each R ⁸ . The positions of R ⁷ and R ⁸ are preferably the 2nd and 4th positions.

The C _1-9 alkyl group may be linear or branched. The carbon number of the C _1-9 alkyl group is preferably 3 or more and 5 or less. Examples of the C _1-9 alkyl group include a methyl group, an ethyl group, a propyl group, an isopropyl group, a butyl group, an isobutyl group, a sec-butyl group, a t-butyl group, a pentyl group, a t-pentyl group, and 2-ethylhexyl. Group, nonyl group and the like.

_{Examples of the} C _5-8 cycloalkyl group include a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, and a cyclooctyl group.

Examples of the C _6-12 alkylcycloalkyl group include 1-methylcyclopentyl group, 2-methylcyclopentyl group, 1-methylcyclohexyl group, 2-methylcyclohexyl group, 1-methyl-4-isopropylcyclohexyl group and the like. .

Examples of the C _7-12 aralkyl group include a benzyl group, α-methylbenzyl group (also referred to as 1-phenylethyl group), α, α-dimethylbenzyl group (1-methyl-1-phenylethyl group or cumyl group). For example).

Each R ⁷ and each R ⁸ are independently preferably a hydrogen atom or a C _1-9 alkyl group, more preferably a hydrogen atom, a t-butyl group or a nonyl group, and still more preferably a t-butyl group.

Examples of the compound (3) include tris (2,4-di-t-butylphenyl) phosphite (hereinafter sometimes abbreviated as “compound (3-1)”), triphenyl phosphite, tris (4 -Nonylphenyl) phosphite, tris (2,4-dinonylphenyl) phosphite and the like. Of these, the compound (3-1) is preferable. The compound (3-1) is commercially available as “Irgaphos (registered trademark) 168” (manufactured by BASF).

Each R ⁹ in formula (4) is independently a hydrogen atom, a C _1-9 alkyl group, a C _5-8 cycloalkyl group, a C _6-12 alkylcycloalkyl group, a C _7-12 aralkyl group or phenyl. Represents a group. There are four R ^{9 s} , and each R ⁹ may be the same as or different from each other, preferably the same. _Examples of the C _1-9 alkyl group, the C _5-8 cycloalkyl group, the C _6-12 alkylcycloalkyl group, and the C _7-12 aralkyl group represented by R ⁹ include those described above. Each R ⁹ is independently preferably a hydrogen atom or a C _1-9 alkyl group, more preferably a hydrogen atom.

Examples of the compound (4) include tetrakis (2,4-di-t-butylphenyl) -4,4-biphenylenediphosphonite (hereinafter sometimes abbreviated as “compound (4-1)”), tetrakis (2,4-di-t-butyl-5-methylphenyl) -4,4-biphenylenediphosphonite (hereinafter sometimes abbreviated as “compound (4-2)”). Of these, the compound (4-1) is preferable. Compound (4-1) is “Sandstub (registered trademark) P-EPQ” (manufactured by Clariant), and Compound (4-2) is “Yosinox (registered trademark) GSY-P101” (manufactured by API). It is commercially available.

Each R ¹⁰ in the formula (5) independently represents a C _1-18 alkyl group or a phenyl group. The phenyl group of R ¹⁰ is at least one selected from the group consisting of a C _1-9 alkyl group, a C _5-8 cycloalkyl group, a C _6-12 alkylcycloalkyl group, and a C _7-12 aralkyl group as a substituent. You may have. In addition, the above-mentioned thing is mentioned as a substituent of these phenyl groups. Two R ¹⁰ exist, and each R ¹⁰ may be the same as or different from each other, preferably the same.

The C _1-18 alkyl group may be linear or branched. The carbon number of the C _1-18 alkyl group is preferably 12 or more and 18 or less. Examples of the C _1-18 alkyl group include methyl group, ethyl group, propyl group, isopropyl group, butyl group, isobutyl group, t-butyl group, hexyl group, octyl group, decyl group, dodecyl group, tetradecyl group, hexadecyl group. Group, octadecyl group and the like.

_{Examples of the} phenyl group substituted with a C _1-9 alkyl group include a 2-methylphenyl group, a 4-methylphenyl group, a 2-t-butylphenyl group, a 4-t-butylphenyl group, a 2-nonylphenyl group, 4-nonylphenyl group, 2,4-di-t-butylphenyl group, 2,4-di-nonylphenyl group, 2,6-di-t-butylphenyl group, 2-t-butyl-4-methylphenyl Group, 2-t-butyl-4-ethylphenyl group, 2,5-di-t-butylphenyl group, 2,6-di-t-butyl-4-methylphenyl group and the like.

_{Examples of the} phenyl group substituted with a C _5-8 cycloalkyl group include a 2-cyclopentylphenyl group, a 2-cyclohexylphenyl group, a 4-cyclohexylphenyl group, and a 2,4-dicyclohexylphenyl group.

_{Examples of the} phenyl group substituted with a C _6-12 alkylcycloalkyl group include 2- (2-methylcyclohexyl) phenyl group, 4- (2-methylcyclohexyl) phenyl group, 2,4-di- (2-methyl). (Cyclohexyl) phenyl group and the like.

Examples of the phenyl group substituted with a C _7-12 aralkyl group include a 2-benzylphenyl group, a 2-cumylphenyl group, a 4-cumylphenyl group, and a 2,4-dicumylphenyl group.

_{Examples of the} phenyl group substituted with a C _1-9 alkyl group and a C _5-8 cycloalkyl group include a 2-methyl-4-cyclohexylphenyl group. _{Examples of the} phenyl group substituted with a C _1-9 alkyl group and a C _6-12 alkylcycloalkyl group include a 2-methyl-4- (2-methylcyclohexyl) phenyl group. _{Examples of the} phenyl group substituted with a C _1-9 alkyl group and a C _7-12 aralkyl group include a 2-benzyl-4-methylphenyl group.

Each R ¹⁰ is preferably independently an octadecyl group (also referred to as a stearyl group), a 2,6-di-t-butyl-4-methylphenyl group, a 2,4-di-t-butylphenyl group, or 2 , 4-Dicumylphenyl group.

Examples of the compound (5) include bis (2,6-di-t-butyl-4-methylphenyl) pentaerythritol diphosphite (hereinafter sometimes referred to as “compound (5-1)”), bis (2,4-di-t-butylphenyl) pentaerythritol diphosphite (hereinafter sometimes abbreviated as “compound (5-2)”), bis (2,4-dicumylphenyl) pentaerythritol diphosphite (Hereinafter sometimes abbreviated as “compound (5-3)”), distearyl pentaerythritol diphosphite (hereinafter sometimes abbreviated as “compound (5-4)”), diisodecyl pentaerythritol diphosphite, Bis (2,4-di-t-butylphenyl) pentaerythritol diphosphite, bis (2,4-di-t-butyl-6-methylphenol) Le) pentaerythritol diphosphite, bis (2,4,6-tri -t- butyl phenyl) pentaerythritol phosphite. Among these, the compound (5-1), the compound (5-2) and the compound (5-3) are preferable. Compound (5-1) is “ADK STAB (registered trademark) PEP-36” (manufactured by Adeka), compound (5-2) is “Ultranox (registered trademark) 626” (manufactured by GE Plastics), compound ( 5-3) is commercially available as “Doverphos S9228T” (manufactured by Dover Chemical), and compound (5-4) is commercially available as “Adekastab (registered trademark) PEP-8” (manufactured by Adeka).

In the formula (6), each R ¹¹ and each R ¹² are independently a hydrogen atom, a C _1-9 alkyl group, a C _5-8 cycloalkyl group, a C _6-12 alkylcycloalkyl group, a C _7-12 Represents an aralkyl group or a phenyl group. _Examples of the C _1-9 alkyl group, C _5-8 cycloalkyl group, C _6-12 alkylcycloalkyl group and C _7-12 aralkyl group of R ¹¹ and R ¹² include those described above. Although there are six R ^{11 s} , each R ¹¹ may be the same as or different from each other, preferably the same. The same applies to each R ¹² . The positions of R ¹¹ and R ¹² are preferably the 3rd and 5th positions when the position of the carbon atom of the benzene ring to which L ² is bonded is the 1st position, respectively. Each R ¹¹ and each R ¹² are independently preferably a C _1-9 alkyl group, more preferably a t-butyl group.

Each L ² in the formula (6) independently represents a single bond, a sulfur atom or a divalent group represented by the formula (6a). R ¹³ and R ¹⁴ in the formula (6a) Each independently represents a hydrogen atom or a C _1-7 alkyl group, provided that the total number of carbon atoms is 7 or less. There are three L ^{2 s} , and each L ² may be the same or different from each other, and is preferably the same.

The C _1-7 alkyl group may be linear or branched. The carbon number of the C _1-7 alkyl group is preferably 1 or more and 3 or less. The total number of carbon atoms of R ¹³ and R ¹⁴ is preferably 3 or less. Examples of the C _1-7 alkyl group include methyl group, ethyl group, propyl group, isopropyl group, butyl group, isobutyl group, sec-butyl group, t-butyl group, pentyl group, isopentyl group, neopentyl group, t- A pentyl group, a hexyl group, a heptyl group, etc. are mentioned.

Examples of the divalent group (6a) include —CH ₂ —, —CH (CH ₃ ) —, —CH (C ₂ H ₅ ) —, —C (CH ₃ ) ₂ —, —CH (n—C). ₃ H ₇ ) — and the like.

Each L ² is preferably —CH ₂ — or a single bond, more preferably a single bond.

Each L < ³ _{> in} Formula (6) represents a _C2-8 alkylene group each independently. Three L ³ exist, and each L ³ may be the same as or different from each other, and preferably the same.

Examples of the C _2-8 alkylene group include ethylene, propylene (—CH (CH ₃ ) CH ₂ —, —CH ₂ CH (CH ₃ ) —), trimethylene, tetramethylene, pentamethylene, hexa Examples include a methylene group, an octamethylene group, and a 2,2-dimethyl-1,3-propylene group.

Each L ³ is independently preferably an ethylene group or a trimethylene group, more preferably an ethylene group.

As the compound (6), 6,6 ′, 6 ″-[nitrilotris (ethyleneoxy)] tris (2,4,8,10-tetra-t-butyldibenzo [d, f] [1,3,2] Dioxaphosphepine) (hereinafter sometimes abbreviated as “compound (6-1)”). Compound (6-1) is commercially available as “Irgaphos (registered trademark) 12” (manufactured by BASF).

In the formula (7), each R ¹⁵ and each R ¹⁶ independently represent a hydrogen atom, a C _1-9 alkyl group, a C _5-8 cycloalkyl group, a C _6-12 alkylcycloalkyl group, a C _7-12 Represents an aralkyl group or a phenyl group. _Examples of the C _1-9 alkyl group, the C _5-8 cycloalkyl group, the C _6-12 alkylcycloalkyl group, and the C _7-12 aralkyl group of R ¹⁵ and R ¹⁶ include those described above. Although there are two R ^{15 s} , each R ¹⁵ may be the same as or different from each other, preferably the same. The same applies to each R ¹⁶ . The positions of R ¹⁵ and R ¹⁶ are the 3rd and 5th positions when the position of the carbon atom of the benzene ring to which L ⁴ is bonded is the 1st position, that is, the benzene ring to which O is bonded. When the position of each carbon atom is the 1st position, the 2nd and 4th positions are preferred. Each R ¹⁵ and each R ¹⁶ are independently preferably a C _1-9 alkyl group, more preferably a t-butyl group.

R ¹⁷ in the formula (7) represents a C _1-8 alkyl group or a phenyl group. The phenyl group of R ¹⁷ is at least one selected from the group consisting of a C _1-9 alkyl group, a C _5-8 cycloalkyl group, a C _6-12 alkylcycloalkyl group, and a C _7-12 aralkyl group as a substituent. You may have. _{Examples of the} phenyl group having a C _1-8 alkyl group and a substituent for R ¹⁷ include those described above. However, the carbon number of the C _1-8 alkyl group of R ¹⁷ is preferably 4 or more and 8 or less. R ¹⁷ is preferably a C _1-8 alkyl group, more preferably an octyl group.

L ⁴ in the formula (7) represents a single bond, a sulfur atom or a divalent group represented by the formula (7a), and R ¹⁸ and R ¹⁹ in the formula (7a) have a total carbon number of 7 Each independently represents a hydrogen atom or a C _1-7 alkyl group, provided that _Examples of the C _1-7 alkyl group for R ¹⁸ and R ¹⁹ include those described above. The total number of carbon atoms of R ¹⁸ and R ¹⁹ is preferably 3 or less. Specific examples of the divalent group (7a) include the same as the divalent group (6a). L ⁴ is preferably —CH ₂ — or a single bond, more preferably —CH ₂ —.

Examples of the compound (7) include 2,2-methylenebis (4,6-di-t-butylphenyl) octyl phosphite (hereinafter sometimes abbreviated as “compound (7-1)”) and 2,2 Examples include '-methylenebis (4,6-di-t-butylphenyl) 2-ethylhexyl phosphite. Of these, the compound (7-1) is preferable. Compound (7-1) is commercially available as “Adekastab (registered trademark) HP-10” (manufactured by Adeka).

Among the compounds (3) to (7), the compound (3) is preferable, and the compound (3-1) is more preferable.

When the first processing stabilizer contains at least one of compound (2) to compound (7), each content of compound (2) to compound (7) is the sum of compound (1) and maltitol 100 parts by weight, preferably 0.1 parts by weight or more (more preferably 10 parts by weight or more, more preferably 20 parts by weight or more), preferably 200 parts by weight or less (more preferably 90 parts by weight or less, further preferably Is 80 parts by weight or less).

Next, the second processing stabilizer will be described. One of the characteristics of the second processing stabilizer is that it contains the compound (8). Only one type of compound (8) may be used, or two or more types may be used in combination. Hereinafter, the compound (8) will be described in order.

In the formula (8), each R ²⁰ , each R ²¹ , R ²³ and R ²⁴ is independently a hydrogen atom, a C _1-8 alkyl group, a C _5-8 cycloalkyl group, or a C _6-12 alkyl cycloalkyl. Represents a group, a C _7-12 aralkyl group or a phenyl group. Although there are two R ^{20 s} , each R ²⁰ may be the same as or different from each other, preferably the same. The same applies to each R ²¹ .

The C _1-8 alkyl group may be linear or branched. The carbon number of the C _1-8 alkyl group is preferably 1 or more and 5 or less. Examples of the C _1-8 alkyl group include a methyl group, an ethyl group, a propyl group, an isopropyl group, a butyl group, an isobutyl group, a sec-butyl group, a t-butyl group, a t-pentyl group, and an isooctyl group (6-methyl). A heptyl group), a t-octyl group (also referred to as a 1,1,3,3-tetramethylbutyl group), a 2-ethylhexyl group, and the like.

Each R ²⁰ and R ²³ is preferably independently a C _1-8 alkyl group (more preferably a C _4-8 alkyl group having a tertiary carbon atom) or a C _5-8 cycloalkyl group (more preferably A cyclohexyl group) or a C _6-12 alkylcycloalkyl group (more preferably a 1-methylcyclohexyl group). The C _4-8 alkyl group having a tertiary carbon atom is more preferably a t-butyl group, a t-pentyl group or a t-octyl group.

Each R ²¹ is independently preferably a C _1-8 alkyl group, a C _5-8 cycloalkyl group or a C _6-12 alkylcycloalkyl group, and more preferably a C _1-5 alkyl group. The C _1-5 alkyl group may be linear or branched. _{Examples of the} C _1-5 alkyl group include a methyl group, an ethyl group, a propyl group, an isopropyl group, a butyl group, an isobutyl group, a sec-butyl group, a t-butyl group, and a t-pentyl group. More preferably, each R ²¹ independently represents a methyl group, a t-butyl group or a t-pentyl group.

R ²⁴ is preferably a hydrogen atom or a C _1-5 alkyl group, more preferably a hydrogen atom or a methyl group. _Examples of the C _1-5 alkyl group for R ²⁴ include those described above.

Each R ²² in Formula (8) independently represents a hydrogen atom or a C _1-8 alkyl group. There are two R ^{22 s} , and each R ²² may be the same as or different from each other, preferably the same. Each R ²² is preferably a hydrogen atom or a C _1-5 alkyl group, more preferably a methyl group or a hydrogen atom. _Examples of the C _1-8 alkyl group and the C _1-5 alkyl group for R ²² include those described above.

L ⁵ in the formula (8) represents a single bond, a sulfur atom or a divalent group represented by the formula (8a), and R ²⁵ in the formula (8a) represents a hydrogen atom, a C _1-8 alkyl group or C _5-8 represents a cycloalkyl group. R ²⁵ is preferably a hydrogen atom or a C _1-5 alkyl group. _Examples of the C _1-8 alkyl group, C _1-5 alkyl group, and C _5-8 cycloalkyl group represented by R ²⁵ include those described above. L ⁵ is preferably a single bond or a divalent group (8a), and more preferably a single bond.

L ⁶ in the formula (8) represents a C _2-8 alkylene group or a divalent group represented by the formula (8b), and L ⁷ in the formula (8b) represents a single bond or a C _1-8 alkylene group. Represents. Both the C _2-8 alkylene group and the C _1-8 alkylene group may be linear or branched. Examples of the C _2-8 alkylene group include ethylene, propylene (—CH (CH ₃ ) CH ₂ —, —CH ₂ CH (CH ₃ ) —), trimethylene, tetramethylene, pentamethylene, hexa Examples include a methylene group, an octamethylene group, and a 2,2-dimethyl-1,3-propylene group. Examples of the C _1-8 alkylene group include a methylene group and the aforementioned C _2-8 alkylene group.

L ⁶ is preferably a C _2-8 alkylene group, a divalent group (8b) in which L ⁷ is a single bond (ie, a carbonyl group), or a divalent group (8b) in which L ⁷ is an ethylene group. _Yes ; more preferably a C _2-8 alkylene group; still more preferably a trimethylene group.

In Formula (8), any ^one of Z ¹ and Z ² represents a hydroxy group, a C _1-8 alkyl group, a C _1-8 alkoxy group or a C _7-12 aralkyloxy group, and the other represents a hydrogen atom or C _1-8 represents an alkyl group. As the C _1-8 alkyl group of Z ¹ and Z ² include those described above.

The C _1-8 alkoxy group may be linear or branched. Examples of the C _1-8 alkoxy group include a methoxy group, an ethoxy group, a propoxy group, an isopropoxy group, a butoxy group, an isobutoxy group, a sec-butoxy group, a t-butoxy group, a t-pentyloxy group, and an isooctyloxy group. (Also referred to as 6-methylheptyloxy group), t-octyloxy group (also referred to as 1,1,3,3-tetramethylbutyloxy group), 2-ethylhexyloxy group and the like.

Examples of the C _7-12 aralkyloxy group include benzyloxy group, α-methylbenzyloxy group, α, α-dimethylbenzyloxy group and the like.

It is preferable that ^one of Z ¹ and Z ² is a hydroxy group and the other is a hydrogen atom.

As a preferable combination of substituents, each R ²⁰ and R ²³ is each independently a C _4-8 alkyl group, cyclohexyl or 1-methylcyclohexyl group having a tertiary carbon atom, and each R ²¹ is independently _Are each a C _1-5 alkyl group, each R ²² is independently a hydrogen atom or a C _1-5 alkyl group, R ²⁴ is a hydrogen atom or a C _1-5 alkyl group, and L ⁵ is a single bond And a combination in which L ⁶ is a C _2-8 alkylene group, one of Z ¹ and Z ² is a hydroxy group, and the other is a hydrogen atom. In this preferred combination, each R ²⁰ is more preferably the same as each other. The same applies to each R ²¹ and each R ²² . In this preferred combination, each R ²⁰ , each R ²² and R ²³ is more preferably a t-butyl group or a t-pentyl group (particularly a t-butyl group) in common.

Examples of the compound (8) include 6- [3- (3-t-butyl-4-hydroxy-5-methylphenyl) propoxy] -2,4,8,10-tetra-t-butyldibenz [d, f ] [1,3,2] dioxaphosphine, 2,10-dimethyl-4,8-di-t-butyl-6- [3- (3,5-di-t-butyl-4-hydroxyphenyl) ) Propoxy] -12H-dibenzo [d, g] [1,3,2] dioxaphosphocin, 2,4,8,10-tetra-t-butyl-6- [3- (3,5-di-) t-butyl-4-hydroxyphenyl) propoxy] dibenzo [d, f] [1,3,2] dioxaphosphine, 2,4,8,10-tetra-t-pentyl-6- [3- ( 3,5-di-tert-butyl-4-hydroxyphenyl) propoxy] -12-methyl -12H-dibenzo [d, g] [1,3,2] dioxaphosphocin, 2,10-dimethyl-4,8-di-t-butyl-6- [3- (3,5-di-t -Butyl-4-hydroxyphenyl) propionyloxy] -12H-dibenzo [d, g] [1,3,2] dioxaphosphocine, 2,4,8,10-tetra-t-pentyl-6- [3 -(3,5-di-t-butyl-4-hydroxyphenyl) propionyloxy] -12-methyl-12H-dibenzo [d, g] [1,3,2] dioxaphosphocin, 2,4,8 , 10-Tetra-t-butyl-6- [3- (3,5-di-t-butyl-4-hydroxyphenyl) propionyloxy] -dibenzo [d, f] [1,3,2] dioxaphos Fepin, 2,10-dimethyl-4,8-di-t-butyl-6 (3,5-di-t-butyl-4-hydroxybenzoyloxy) -12H-dibenzo [d, g] [1,3,2] dioxaphosphocin, 2,4,8,10-tetra-t- Butyl-6- (3,5-di-t-butyl-4-hydroxybenzoyloxy) -12-methyl-12H-dibenzo [d, g] [1,3,2] dioxaphosphocin, 2,10- Dimethyl-4,8-di-t-butyl-6- [3- (3-methyl-4-hydroxy-5-tert-butylphenyl) propoxy] -12H-dibenzo [d, g] [1,3,2 Dioxaphosphocin, 2,4,8,10-tetra-t-butyl-6- [3- (3,5-di-t-butyl-4-hydroxyphenyl) propoxy] -12H-dibenzo [d, g] [1,3,2] dioxaphosphocin, 2,10-diethyl -4,8-di-t-butyl-6- [3- (3,5-di-t-butyl-4-hydroxyphenyl) propoxy] -12H-dibenzo [d, g] [1,3,2 Dioxaphosphocin, 2,4,8,10-tetra-t-butyl-6- [2,2-dimethyl-3- (3-t-butyl-4-hydroxy-5-methylphenyl) propoxy]- Examples include dibenzo [d, f] [1,3,2] dioxaphosphine.

Among the compounds (8), 6- [3- (3-t-butyl-4-hydroxy-5-methylphenyl) propoxy] -2,4,8,10-tetra-t-butyldibenz [d, f] [ 1,3,2] dioxaphosphepine (hereinafter sometimes abbreviated as “compound (8-1)”) is preferred. Compound (8-1) is commercially available as “Sumilyzer (registered trademark) GP” (manufactured by Sumitomo Chemical Co., Ltd.).

Compound (8) may be a commercially available product, or can be produced according to a known method (for example, the method described in JP-A-10-273494).

One feature of the second processing stabilizer is that it contains maltitol. The description of maltitol is the same as described above.

The content of maltitol in the second processing stabilizer is preferably 0.1% by weight or more (more preferably 1% by weight or more, more preferably 2% by weight or more) in the total of compound (8) and maltitol. , Particularly preferably 5% by weight or more), preferably 95% by weight or less (more preferably 90% by weight or less, further preferably 75% by weight or less, particularly preferably 50% by weight or less).

The second processing stabilizer may be composed of the compound (8) and maltitol, or may contain other components. For example, the second processing stabilizer may further contain the compound (2). Only one type of compound (2) may be used, or two or more types may be used in combination. The description of compound (2) is the same as described above.

The second processing stabilizer may further contain at least one selected from the group consisting of compound (3) to compound (7). Only one of compound (3) to compound (7) may be used, or two or more may be used in combination. The description of the compounds (3) to (7) is the same as described above.

When the second processing stabilizer contains at least one of compound (2) to compound (7), each content of compound (2) to compound (7) is the sum of compound (8) and maltitol 100 parts by weight, preferably 0.1 parts by weight or more (more preferably 10 parts by weight or more, more preferably 20 parts by weight or more), preferably 200 parts by weight or less (more preferably 90 parts by weight or less, further preferably Is 80 parts by weight or less).

Next, the third processing stabilizer will be described. One of the features of the third processing stabilizer is that it contains the compound (2). Only one type of compound (2) may be used, or two or more types may be used in combination. The description of compound (2) is the same as described above.

One of the characteristics of the third processing stabilizer is that it contains maltitol. The description of maltitol is the same as described above.

The content of maltitol in the third processing stabilizer is preferably 0.1% by weight or more (more preferably 1% by weight or more, more preferably 2% by weight or more) in the total of compound (2) and maltitol. , Particularly preferably 5% by weight or more), preferably 95% by weight or less (more preferably 90% by weight or less, further preferably 75% by weight or less, particularly preferably 50% by weight or less).

The third processing stabilizer may be composed of the compound (2) and maltitol, or may contain other components. For example, the third processing stabilizer may contain compound (1). Only 1 type may be used for a compound (1) and it may use 2 or more types together. The description of compound (1) is the same as described above.

Furthermore, the third processing stabilizer may contain at least one selected from the group consisting of compounds (3) to (7). Only one of compound (3) to compound (7) may be used, or two or more may be used in combination. The description of the compounds (3) to (7) is the same as described above.

Furthermore, the third processing stabilizer may contain the compound (8). Only one type of compound (8) may be used, or two or more types may be used in combination. The description of compound (8) is the same as described above.

Of the compounds (1) and (3) to (8) that can be used in combination in the third processing stabilizer, the compounds (1), (3) and (8) are preferred, and the compounds (1) And Compound (8) is more preferable, and Compound (1) is more preferable.

When the third processing stabilizer contains at least one of compound (1), compound (3) to compound (8), each content of compound (1), compound (3) to compound (8) Is preferably 0.1 parts by weight or more (more preferably 10 parts by weight or more, more preferably 20 parts by weight or more), preferably 200 parts by weight or less, relative to 100 parts by weight of the total of compound (2) and maltitol (More preferably 90 parts by weight or less, still more preferably 80 parts by weight or less).

Next, the fourth processing stabilizer will be described. One of the features of the fourth processing stabilizer is that it contains at least one selected from the group consisting of the compounds (3) to (7) (that is, an organic phosphorus compound). Only one of compound (3) to compound (7) may be used, or two or more may be used in combination. The description of the compounds (3) to (7) is the same as described above.

One of the features of the fourth processing stabilizer is that it contains maltitol. The description of maltitol is the same as described above.

In the fourth processing stabilizer, the weight ratio of the compound selected from the group consisting of compound (3) to compound (7) and maltitol (ie, selected from the group consisting of compound (3) to compound (7)) Compound: maltitol) is preferably 1000: 1 to 0.05: 1. The compound selected from the group consisting of compounds (3) to (7): maltitol is more preferably 1000: 1 to 0.1: 1 from the viewpoint of processing stability of the thermoplastic polymer composition, From the viewpoint of suppressing discoloration of the plastic polymer composition, it is more preferably 1000: 1 to 0.5: 1, and particularly preferably 1000: 1 to 1: 1.

The fourth processing stabilizer may be composed of at least one selected from the group consisting of compounds (3) to (7) and maltitol, or may contain other components. . Here, “the fourth processing stabilizer is composed of at least one selected from the group consisting of compound (3) to compound (7) and maltitol” means “from compound (3) to compound (7)”. The total amount of the compound selected from the group and maltitol is 99% by weight or more in the fourth processing stabilizer ”.

The fourth processing stabilizer may contain, for example, at least one selected from the group consisting of compound (1), compound (2) and compound (8). As for a compound (1), a compound (2), and a compound (8), all may use only 1 type and may use 2 or more types together. The explanation of compound (1), compound (2) and compound (8) is the same as described above.

Each content of the compound (1), the compound (2) and the compound (8) that can be used in combination in the fourth processing stabilizer is preferably 0 to 90% by weight, more preferably in the fourth processing stabilizer. Is 0.1 to 80% by weight.

The processing stabilizer of the present invention (that is, the first to fourth processing stabilizers) may contain additives other than the above components (hereinafter abbreviated as “other additives”). Only 1 type may be used for another additive and it may use 2 or more types together. Other additives include, for example, antioxidants, ultraviolet absorbers, light stabilizers, stabilizers, lubricants, metal deactivators, nucleating agents, antistatic agents, flame retardants, fillers, pigments, inorganic fillers Agents and the like.

Examples of antioxidants include phenolic antioxidants (excluding compounds (1) and (2)), sulfur antioxidants, and phosphorus antioxidants (excluding compounds (3) to (8). ) And hydroquinone antioxidants.

Examples of the phenolic antioxidant include those described in the following [1] to [16].
[1] 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, , 6-Di-t-butyl-4-methoxymethylphenol, 2,6-di-nonyl-4-methylphenol, 2,4-dimethyl-6- (1′-methylundecyl-1′-yl) Alkyl such as phenol, 2,4-dimethyl-6- (1′-methylheptadecyl-1′-yl) phenol, 2,4-dimethyl-6- (1′-methyltridecyl-1′-yl) phenol Monophenol.

[2] 2,4-bis (octylthiomethyl) -6-t-butylphenol, 2,4-bis (octylthiomethyl) -6-methylphenol, 2,4-bis (octylthiomethyl) -6-ethyl Alkylthiomethylphenols such as phenol and 2,6-bis (dodecylthiomethyl) -4-nonylphenol;

[3] 2,2′-methylenebis (4-methyl-6-tert-butylphenol), 2,2′-methylenebis (4-ethyl-6-tert-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-tert-butyl-2-methylphenol), 4,4'-methylenebis (2,6-di-tert-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-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-tert-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 Alkylidene bisphenols such as (5-t-butyl-4-hydroxy-2-methylphenyl) pentane and derivatives thereof;

[4] Acylaminophenol derivatives such as 4-hydroxylauric acid anilide, 4-hydroxystearic acid anilide, octyl-N- (3,5-di-t-butyl-4-hydroxyphenyl) carbamate.

[5] β- (3,5-di-t-butyl-4-hydroxyphenyl) propionic acid and a mono- or polyhydric alcohol (for example, 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-tori Kisabishikuro [2,2,2] octane or a mixture thereof).

[6] 2,2′-thiobis (6-tert-butylphenol), 2,2′-thiobis (4-methyl-6-tert-butylphenol), 2,2′-thiobis (4-octylphenol), 4,4 Bis (hydroxyphenyl) sulfides such as' -thiobis (2-methyl-6-tert-butylphenol), 4,4'-bis (2,6-dimethyl-4-hydroxyphenyl) sulfide.

[7] 3,5,3 ′, 5′-tetra-t-butyl-4,4′-dihydroxydibenzyl ether, octadecyl-4-hydroxy-3,5-dimethylbenzyl mercaptoacetate, 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-hydroxy) Benzyl) sulfide, O-benzyl derivatives such as isooctyl-3,5-di-t-butyl-4-hydroxybenzyl mercaptoacetate, N-benzyl derivatives and S-benzyl derivatives.

[8] 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-butyl) Phenoxy) -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-dimethylbenzyl) isocyanurate, tris (3,5-di-t-butyl-4-hydroxybenzyl) isocyanurate, 2,4,6-tris (3,5-di-t- Butyl-4-hydroxyphenylethyl) -1 3,5-triazine, 2,4,6-tris (3,5-di-tert-butyl-4-hydroxyphenylpropyl) -1,3,5-triazine, tris (3,5-dicyclohexyl-4-hydroxy Benzyl) isocyanurate, triazine derivatives such as tris [2- (3 ′, 5′-di-t-butyl-4′-hydroxycinnamoyloxy) ethyl] isocyanurate.

[9] Dioctadecyl-2,2-bis (3,5-di-tert-butyl-2-hydroxybenzyl) malonate, dioctadecyl-2- (3-tert-butyl-4-hydroxy-5-methylbenzyl) Malonate, didodecyl mercaptoethyl-2,2-bis (3,5-di-t-butyl-4-hydroxybenzyl) malonate, bis [4- (1,1,3,3-tetramethylbutyl) phenyl]- Hydroxybenzylated malonate derivatives such as 2,2-bis (3,5-di-t-butyl-4-hydroxybenzyl) malonate.

[10] 1,3,5-trimethyl-2,4,6-tris (3,5-di-t-butyl-4-hydroxybenzyl) benzene, 1,4-bis (3,5-di-t- Aromatic hydroxybenzyl such as butyl-4-hydroxybenzyl) -2,3,5,6-tetramethylbenzene, 2,4,6-tris (3,5-di-t-butyl-4-hydroxybenzyl) phenol Derivative.

[11] Dimethyl-3,5-di-t-butyl-4-hydroxybenzylphosphonate, diethyl-3,5-di-t-butyl-4-hydroxybenzylphosphonate, dioctadecyl-3,5-di-t- Butyl-4-hydroxybenzylphosphonate, dioctadecyl-5-t-butyl-4-hydroxy-3-methylbenzylphosphonate, calcium salt of 3,5-di-t-butyl-4-hydroxybenzylphosphonic acid monoester, etc. Benzylphosphonate derivative.

[12] β- (5-tert-butyl-4-hydroxy-3-methylphenyl) propionic acid and a mono- or polyhydric alcohol (for example, 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 Trio key rust cyclo [2,2,2] octane or a mixture thereof).

[13] β- (3,5-dicyclohexyl-4-hydroxyphenyl) propionic acid and a mono- or polyhydric alcohol (for example, 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- Riokisabishikuro [2,2,2] octane or a mixture thereof).

[14] 3,5-di-tert-butyl-4-hydroxyphenylacetic acid and a monohydric or polyhydric alcohol (for example, 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 or mixtures thereof).

[15] 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] tri Amides of β- (3,5-di-t-butyl-4-hydroxyphenyl) propionic acid such as methylenediamine.

[16] Tocopherols such as α-tocopherol, β-tocopherol, γ-tocopherol, and δ-tocopherol.

Examples of sulfur antioxidants include dilauryl 3,3'-thiodipropionate, tridecyl 3,3'-thiodipropionate, dimyristyl 3,3'-thiodipropionate, distearyl 3,3'- Examples include thiodipropionate, lauryl stearyl, 3,3′-thiodipropionate, and neopentanetetrakis (3-lauryl thiopropionate).

Examples of phosphorus antioxidants include trilauryl phosphite, trioctadecyl phosphite, tristearyl sorbitol triphosphite, 2,2′-ethylidenebis (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- And tri-t-butylphenyl) -5-ethyl-5-butyl-1,3,2-oxaphosphorinane.

Examples of the hydroquinone antioxidant include 2,6-di-t-butyl-4-methoxyphenol, 2,5-di-t-butylhydroquinone, 2,5-di-t-pentylhydroquinone, 2,6 -Diphenyl-4-octadecyloxyphenol, 2,6-di-t-butylhydroquinone, 2,5-di-t-butyl-4-hydroxyanisole, 3,5-di-t-butyl-4-hydroxyphenyl steer And bis (3,5-di-t-butyl-4-hydroxyphenyl) adipate.

Examples of the ultraviolet absorber include those described in [1] to [3] below.

[1] 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, hexadecyl 3 ′, 5′-di-t-butyl-4′-hydroxybenzoate, octadecyl 3 ′, 5′-di-t-butyl-4′-hydroxy Salicylate derivatives such as benzoate, 2-methyl-4,6-di-t-butylphenyl 3 ′, 5′-di-t-butyl-4′-hydroxybenzoate.

[2] 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-hydroxybenzophenone derivatives such as 2,2 ′, 4,4′-tetrahydroxybenzophenone.

[3] 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'-sec-butyl-2'-hydroxy-5'-t-butylphenyl) benzotriazole, 2- (2'-hydroxy-4'-octyloxyphenyl) benzotriazole, 2 -(3 ', 5'-di-t-pentyl-2'-hydroxyphenyl) benzotriazole, 2- [2'-hydroxy-3', 5'- (Α, α-dimethylbenzyl) phenyl] -2H-benzotriazole, 2-[(3′-tert-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-methoxy) Carbonylethyl) phenyl] benzotriazole, 2- [3′-t-butyl-2′-hydroxy-5- (2-octyloxycarbonylethyl) Enyl] 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 Of '-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-tert-butyl-6- (2H-benzotriazol-2-yl) phenol], poly (3-11) (ethylene glycol) and 2- [3 Condensate with '-t-butyl-2'-hydroxy-5'-(2-methoxycarbonylethyl) phenyl] benzotriazole, poly (3-11) (ethylene glycol) and methyl 3- [3- (2H- Condensate with benzotriazol-2-yl) -5-t-butyl-4-hydroxyphenyl] propionate, 2-ethylhexyl 3- [3-t-butyl-5- (5-chloro-2H-benzotriazole-2 -Yl) -4-hydroxyphenyl] propionate, octyl 3- [3-tert-butyl-5- (5-chloro-2H-benzotriazole) -2-yl) -4-hydroxyphenyl] propionate, methyl 3- [3-tert-butyl-5- (5-chloro-2H-benzotriazol-2-yl) -4-hydroxyphenyl] propionate, 3- [ 2- (2′-hydroxyphenyl) benzotriazole, such as 3-t-butyl-5- (5-chloro-2H-benzotriazol-2-yl) -4-hydroxyphenyl] propionic acid.

Examples of the light stabilizer include those described in [1] to [5] below.
[1] A hindered amine light stabilizer such as those described in the following [a] to [c].
[A] Bis (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-tetra Methyl-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-tert-butyl-4-hydroxybenzyl) -2-butylmalonate, bis (1-acryloyl-2,2,6,6-tetramethyl-4-piperidyl) 2, -Bis (3,5-di-t-butyl-4-hydroxybenzyl) malonate, bis (1,2,2,6,6-pentamethyl-4-piperidyl) decanedioate, 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-butane tetracarboxylate.

[B] 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-butane Mixed esterified products of tetracarboxylic acid and 2,2,6,6-tetramethyl-4-piperidinol and 1-tridecanol, 1,2,3,4-butanetetracarboxylic acid and 1,2,2,6,6 A mixed esterified product of pentamethyl-4-piperidinol and 3,9-bis (2-hydroxy-1,1-dimethylethyl) -2,4,8,10-tetraoxaspiro [5.5] undecane, 2,3,4-butanetetracarboxylic acid and 2,2,6,6-tetramethyl-4-piperidinol and 3,9-bis (2-hydroxy-1,1-dimethylethyl) -2, , 8,10-mixed ester of tetraoxaspiro [5.5] undecane.

[C] 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) 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)], N, N′-bis (2,2,6,6-tetramethyl-4-piperidyl) hexa Methylenediamine and 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) 6-tetramethyl-4-piperidyl) amino) -1,3,5-triazin-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-triazin-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.

[2] Ethyl α-cyano-β, β-diphenyl acrylate, isooctyl α-cyano-β, β-diphenyl acrylate, methyl α-carbomethoxycinnamate, methyl α-cyano-β-methyl-p-methoxycinnamate, Acrylate-based light stability such as butyl α-cyano-β-methyl-p-methoxycinnamate, methyl α-carbomethoxy-p-methoxycinnamate and N- (β-carbomethoxy-β-cyanovinyl) -2-methylindoline Agent.

[3] 2,2′-thiobis- [4- (1,1,3,3-tetramethylbutyl) phenol] nickel complex, nickel dibutyldithiocarbamate, nickel salt of monoalkyl ester, nickel complex of ketoxime, etc. Nickel-based light stabilizer.

[4] 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 Oxamide light stabilizers such as butyl-2′-ethoxyanilide and 2-ethoxy-5,4′-di-t-butyl-2′-ethyloxanilide.

[5] 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- 2- (2-hydroxyphenyl)-such as hydroxy-4- (2-hydroxy-3-octyloxypropoxy) phenyl] -4,6-bis (2,4-dimethylphenyl) -1,3,5-triazine 1,3,5-triazine light stabilizer.

Examples of the stabilizer include N, N-dibenzylhydroxyamine, N, N-diethylhydroxyamine, N, N-dioctylhydroxyamine, N, N-dilaurylhydroxyamine, N, N-ditetradecylhydroxyamine Hydroxyamines such as N, N-dihexadecylhydroxyamine, N, N-dioctadecylhydroxyamine, N-hexadecyl-N-octadecylhydroxyamine, N-heptadecyl-N-octadecylhydroxyamine, and the like.

Examples of the lubricant include aliphatic hydrocarbons such as paraffin and wax, C _8-22 higher fatty acids, C _8-22 higher fatty acid metal (Al, Ca, Mg, Zn) salts, C _8-22 aliphatic alcohols, _Examples include polyglycols, esters of C _4-22 fatty acids and C _4-18 aliphatic monohydric alcohols, C _8-22 higher aliphatic amides, silicone oils, rosin derivatives, and the like.

Among the other additives described above, phenolic antioxidants, phosphorus antioxidants, sulfur antioxidants, ultraviolet absorbers and hindered amine light stabilizers are preferred, and phenolic antioxidants are more preferred.

Particularly preferred phenolic antioxidants include the following: 2,6-di-t-butyl-4-methylphenol, 2,4,6-tri-t-butylphenol, 2,4-bis ( Octylthiomethyl) -6-t-butylphenol, 2,2'-thiobis (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-tert-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], 2,4,6-tris (3 , 5-di-tert-butyl-4-phenoxy) -1,3,5-triazine, tris (4-tert-butyl-3-hydroxy-2,6-dimethylbenzyl) isocyanurate, bi (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, neopentanetetrayltetrakis (3,5-di-t-butyl-4-hydroxycinnamate), thiodiethylenebis (3,5-di-t-butyl-4 -Hydroxycinnamate), 1,3,5-trimethyl-2,4,6-tris (3,5-di-t-butyl-4-hydroxybenzyl) Zen, 3,6-dioxaoctamethylene bis (3,5-di-t-butyl-4-hydroxycinnamate), hexamethylene bis (3,5-di-t-butyl-4-hydroxycinnamate), Triethylene glycol bis (5-t-butyl-4-hydroxy-3-methylcinnamate), 3,9-bis [2- (3- (3-t-butyl-4-hydroxy-5-methylphenyl) propionyl Oxy) -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.

Particularly preferred phosphorus antioxidants include the following: 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.

Particularly preferred ultraviolet absorbers include the following: 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'-hydroxyphen ) 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′-sec-butyl-2′-hydroxy-5′-t-butylphenyl) benzotriazole, 2- (2′- Hydroxy-4′-octyloxyphenyl) benzotriazole, 2- (3 ′, 5′-di-t-pentyl-2′-hydroxyphenyl) benzotriazole, 2- [2′-hydroxy-3 ′, 5′- Bis (α, α-dimethylbenzyl) phenyl] -2H-benzotriazole.

Particularly preferred hindered amine light stabilizers include the following: 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-acryloyl-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-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-butanetetra Karboki , Tetrakis (1,2,6,6-pentamethyl-4-piperidyl) 1,2,3,4-butanetetracarboxylate, 1,2,3,4-butanetetracarboxylic acid and 1,2,2, Mixed esterified product of 6,6-pentamethyl-4-piperidinol and 1-tridecanol, 1,2,3,4-butanetetracarboxylic acid and 2,2,6,6-tetramethyl-4-piperidinol and 1-tridecanol 1,2,3,4-butanetetracarboxylic acid and 1,2,2,6,6-pentamethyl-4-piperidinol and 3,9-bis (2-hydroxy-1,1-dimethyl) Ethyl) -2,4,8,10-tetraoxaspiro [5.5] undecane mixed ester, 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-tetraoxaspiro [5.5] undecane , Polycondensates 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) 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)].

Examples of the method for producing the processing stabilizer of the present invention include the essential components of the first to fourth processing stabilizers and optional components used in some cases (that is, compounds (1) to (8), maltitol, And other additives) in a mixer such as a Henschel mixer, a super mixer, and a high speed mixer. The mixture thus obtained (processing stabilizer) may be further subjected to extrusion molding or stirring granulation.

Next, the thermoplastic polymer composition of the present invention will be described. The thermoplastic polymer composition of the present invention comprises the essential components of the first to fourth processing stabilizers (ie, the group consisting of the compound (1), the compound (2), the compound (3) to the compound (7)). At least one selected from the compound (8), and maltitol) and a thermoplastic polymer. In addition, the thermoplastic polymer composition of the present invention includes the optional components of the first to fourth processing stabilizers (that is, the compounds (1) to (8) which are not essential components) and the other additives described above. ) May be contained. Only one type of thermoplastic polymer may be used, or two or more types may be used in combination.

Examples of the thermoplastic polymer include polyethylene resins (high density polyethylene (HDPE), low density polyethylene (LDPE), linear low density polyethylene (LLDPE), ethylene-vinyl alcohol copolymer (EVOH), ethylene-acrylic. Ethyl acetate copolymer (EEA), ethylene-vinyl acetate copolymer (EVA), etc.), polypropylene resin (crystalline propylene homopolymer, propylene-ethylene random copolymer, propylene-α-olefin random copolymer) , Propylene-ethylene-α-olefin copolymer, propylene homopolymer or block of propylene-based copolymer, and block of propylene and ethylene and / or other α-olefin copolymer Both polypropylene block ), Methylpentene polymers, polystyrene resins (polystyrene (PS), poly (p-methylstyrene), poly (α-methylstyrene) and other polystyrenes, acrylonitrile-styrene copolymer (SAN), acrylonitrile-butadiene) -Styrene copolymer (ABS), special acrylic rubber-acrylonitrile-styrene copolymer, acrylonitrile-chlorinated polyethylene-styrene copolymer (ACS), styrene-ethylene-butylene-styrene block copolymer (SEBS), styrene -Isoprene-styrene block copolymer (SIS), etc., polybutadiene resin (polybutadiene; polybutadiene rubber (BR); styrene-butadiene copolymer (SB); styrene-butadiene block copolymer (SBS); poly High impact polystyrene (HI-PS) modified with butadiene, styrene-butadiene copolymer or SBS; styrene-butadiene thermoplastic elastomer, etc., chlorinated polyethylene (CPE), polychloroprene, chlorinated rubber, polychlorinated Vinyl-based thermoplastic elastomer, polyvinyl chloride (PVC), polyvinylidene chloride (PVDC), methacrylic resin, fluororesin, polyacetal (POM), grafted polyphenylene ether resin, polyphenylene sulfide resin (PPS), polyurethane (PU), polyamide (PA, also called nylon (registered trademark), for example, nylon 6 (Ny6), nylon 11 (Ny11), nylon 12 (Ny12), nylon 610 (Ny610), nylon 612 (Ny612), nylon MX 6 (NyMXD6), etc.), polyester resins (eg, polyethylene terephthalate (PET), polybutylene terephthalate (PBT), etc.), polylactic acid (PLA), polycarbonate (PC), polyacrylate, polysulfone (PPSU), polyether ether ketone (PEEK), polyethersulfone (PES), aromatic polyester, diallyl phthalate prepolymer, silicone resin (SI), 1,2-polybutadiene, polyisoprene, butadiene-acrylonitrile copolymer (NBR), ethylene-methyl methacrylate copolymer A polymer (EMMA) etc. are mentioned.

Among these, polyethylene resin, polypropylene resin, polystyrene resin and polybutadiene resin are preferable, and polyethylene resin and polybutadiene resin are more preferable because of good moldability. In the first to third thermoplastic polymer compositions, ethylene-vinyl alcohol copolymer (EVOH) and styrene-butadiene block copolymer (SBS) are more preferable, and in the fourth thermoplastic polymer composition, More preferred is a styrene-butadiene block copolymer (SBS).

There is no particular limitation on the weight average molecular weight (Mw) of the thermoplastic polymer used. The Mw of the thermoplastic polymer is generally 1000 or more and 300,000 or less. This Mw can be measured, for example, by gel permeation chromatography (GPC) using polystyrene as a standard.

The content of the first processing stabilizer in the first thermoplastic polymer composition is determined by the total amount of the compound (1) and maltitol. The total amount of compound (1) and maltitol in the first thermoplastic polymer composition is preferably 0.001 part by weight or more (more preferably 0.02 part by weight or more) with respect to 100 parts by weight of the thermoplastic polymer. More preferably, it is 0.1 parts by weight or more, particularly preferably 0.5 parts by weight or more), preferably 3 parts by weight or less (more preferably 2 parts by weight or less, more preferably 1 part by weight or less).

When the first processing stabilizer containing at least one of the compounds (2) to (7) is used, the contents of the compounds (2) to (7) in the first thermoplastic polymer composition Is preferably 0.001 part by weight or more (more preferably 0.02 part by weight or more), preferably 3 parts by weight or less (more preferably 2 parts by weight or less) with respect to 100 parts by weight of the thermoplastic polymer composition. is there.

The content of the second processing stabilizer in the second thermoplastic polymer composition is determined by the total amount of the compound (8) and maltitol. The total amount of the compound (8) and maltitol in the second thermoplastic polymer composition is preferably 0.001 part by weight or more (more preferably 0.02 part by weight or more) with respect to 100 parts by weight of the thermoplastic polymer. More preferably, it is 0.1 parts by weight or more, particularly preferably 0.5 parts by weight or more), preferably 3 parts by weight or less (more preferably 2 parts by weight or less, more preferably 1 part by weight or less).

When the second processing stabilizer containing at least one of the compounds (2) to (7) is used, the contents of the compounds (2) to (7) in the second thermoplastic polymer composition Is preferably 0.001 part by weight or more (more preferably 0.02 part by weight or more), preferably 3 parts by weight or less (more preferably 2 parts by weight or less) with respect to 100 parts by weight of the thermoplastic polymer composition. is there.

The content of the third processing stabilizer in the third thermoplastic polymer composition is determined by the total amount of the compound (2) and maltitol. The total amount of compound (2) and maltitol in the third thermoplastic polymer composition is preferably 0.001 part by weight or more (more preferably 0.02 part by weight or more) with respect to 100 parts by weight of the thermoplastic polymer. More preferably, it is 0.1 parts by weight or more, particularly preferably 0.5 parts by weight or more), preferably 3 parts by weight or less (more preferably 2 parts by weight or less, more preferably 1 part by weight or less).

When a third processing stabilizer containing at least one of compound (1), compound (3) to compound (8) is used, compound (1), compound (3) in the third thermoplastic polymer composition ) To (8) are preferably 0.001 part by weight or more (more preferably 0.02 part by weight or more), preferably 3 parts by weight or less with respect to 100 parts by weight of the thermoplastic polymer composition. (More preferably 2 parts by weight or less).

The content of the fourth processing stabilizer in the fourth thermoplastic polymer composition is determined by the total amount of the compound selected from the group consisting of compound (3) to compound (7) and maltitol. The total amount of the compound selected from the group consisting of compounds (3) to (7) and maltitol in the fourth thermoplastic polymer composition is preferably 0.001 to 100 parts by weight of the thermoplastic polymer. 3 parts by weight, more preferably 0.02 to 2 parts by weight, still more preferably 0.02 to 1 part by weight. In the fourth thermoplastic polymer composition, the weight ratio of the compound selected from the group consisting of compound (3) to compound (7) to maltitol (that is, the group consisting of compound (3) to compound (7)) The preferable range of the compound selected from: maltitol is the same as the preferable range of the weight ratio in the fourth processing stabilizer described above.

When the fourth processing stabilizer containing at least one of compound (1), compound (2) and compound (8) is used, compound (1), compound (2) in the fourth thermoplastic polymer composition ) And the compound (8) are preferably 0.001 to 3 parts by weight, more preferably 0.02 to 2 parts by weight with respect to 100 parts by weight of the thermoplastic polymer composition.

Examples of the method for producing the thermoplastic polymer composition of the present invention include a method of mixing the processing stabilizer of the present invention produced as described above and a thermoplastic polymer. In this production method, for example, when kneading a thermoplastic polymer, each component that can be contained in the processing stabilizer of the present invention, that is, the compounds (1) to (8), maltitol and other additives are added. Also included is a method of mixing these separately (that is, the processing stabilizer of the present invention and the thermoplastic polymer) after being separately blended into the thermoplastic polymer.

As a method for mixing the processing stabilizer and the thermoplastic polymer, for example, (a) the processing stabilizer and the thermoplastic polymer are dry-blended, and then melt-kneaded with a single-screw or multi-screw extruder, followed by extrusion. (B) A processing stabilizer is dissolved in a solvent such as cyclohexane to prepare a processing stabilizer solution, and this solution is added to the thermoplastic polymer after completion of polymerization. And a method of removing the solvent from the polymer solution.

The obtained thermoplastic polymer composition may be molded by supplying it to a molding machine in a molten state without cooling. The molding method is not particularly limited, and for example, a molding method such as an injection molding method, an extrusion molding method, an extrusion blow molding method, an injection blow molding method, or a biaxial stretch blow molding method can be used.

By cooling after molding, a thermoplastic polymer molded article made of the thermoplastic polymer composition of the present invention is obtained. Applications of the thermoplastic polymer moldings obtained include, for example, electronic components (for example, coil bobbins, connectors, switches, resistor components, sockets, relays, capacitor cases, fuses, motors, microwave ovens, printed boards, IC manufacturing equipment, lamps. Etc.), automotive parts (eg air outlet garnish, hood vent, distributor cap, exhaust gas control valve, etc.), watch parts (eg gears, cams and other mechanical parts, ground plates, etc.), camera parts (eg bottom lid, lens barrel, Lever, etc.), leisure parts (eg reels), home appliance housing, lighting and wiring equipment, film, bottle, textile, septic tank, toilet, bathtub, unit bath, water tank, ship, chemical tank, pipe, corrugated sheet , Flat plate, paint, decorative plate, sealing of electrical parts Wood, and the like resin concrete.

Hereinafter, the present invention will be described in more detail with reference to examples. The following “parts” are by weight unless otherwise specified. In addition, “melt flow rate” is described as “MFR”.

[1] Component The components used in the following examples and the like are as follows.
Compound (1-1): 2,4-di-t-pentyl-6- [1- (3,5-di-t-pentyl-2-hydroxyphenyl) ethyl] phenyl acrylate (manufactured by Sumitomo Chemical Co., Ltd. (Registered trademark) GS (F) ")
Compound (1-2): 2-t-butyl-6- (3-t-butyl-2-hydroxy-5-methylbenzyl) -4-methylphenyl acrylate (“Sumilyzer (registered trademark) GM” manufactured by Sumitomo Chemical Co., Ltd.) )
Compound (2-1): Octadecyl 3- (3,5-di-tert-butyl-4-hydroxyphenyl) propionate (“Irganox (registered trademark) 1076” manufactured by BASF)
Compound (2-2): 3,9-bis [2- {3- (3-tert-butyl-4-hydroxy-5-methylphenyl) propionyloxy} -1,1-dimethylethyl] -2,4 8,10-tetraoxaspiro [5.5] undecane (“Sumilyzer (registered trademark) GA-80” manufactured by Sumitomo Chemical Co., Ltd.)
Compound (2-3): Pentaerythritol tetrakis [3- (3,5-di-tert-butyl-4-hydroxyphenyl) propionate] (“Irganox (registered trademark) 1010” manufactured by BASF)
Compound (3-1): Tris (2,4-di-t-butylphenyl) phosphite (“Irgaphos (registered trademark) 168” manufactured by BASF)
Compound (4-1): Tetrakis (2,4-di-t-butylphenyl) -4,4-biphenylenediphosphonite (“Sandstub (registered trademark) P-EPQ” manufactured by Clariant)
Compound (5-1): Bis (2,6-di-t-butyl-4-methylphenyl) pentaerythritol diphosphite (“ADEKA STAB (registered trademark) PEP-36” manufactured by ADEKA)
Compound (5-2): Bis (2,4-di-t-butylphenyl) pentaerythritol diphosphite (“Ultranox (registered trademark) 626” manufactured by GE Plastics)
Compound (5-3): Bis (2,4-dicumylphenyl) pentaerythritol diphosphite (“Doverphos S9228T” manufactured by Dover Chemical)
Compound (6-1): 6,6 ′, 6 ″-[nitrilotris (ethyleneoxy)] tris (2,4,8,10-tetra-t-butyldibenzo [d, f] [1,3,2 Dioxaphosphepine) ("Irgafos (registered trademark) 12" manufactured by BASF)
Compound (7-1): 2,2-methylenebis (4,6-di-t-butylphenyl) octyl phosphite (“ADEKA STAB (registered trademark) HP-10” manufactured by ADEKA)
Compound (8-1): 6- [3- (3-tert-butyl-4-hydroxy-5-methylphenyl) propoxy] -2,4,8,10-tetra-tert-butyldibenz [d, f] [ 1,3,2] Dioxaphosphepine (“Sumilyzer (registered trademark) GP” manufactured by Sumitomo Chemical)
Maltitol (manufactured by Tokyo Chemical Industry Co., Ltd.)

In the following Examples 1-1 to 1-194, the compound (1) and the first processing stabilizer containing maltitol as essential components are used. In Examples 2-1 to 2-182, the compound is used. (8) and a second processing stabilizer containing maltitol as essential components, and in Example 3-1 to Example 3-141, a third processing containing compound (2) and maltitol as essential components Example 4-1, which uses a stabilizer, and includes at least one selected from the group consisting of compounds (3) to (7) and maltitol as essential components in Examples 4-1 to 4-205 Use agent.

[2] Evaluation of processing stability of thermoplastic polymer composition The processing stability of the thermoplastic polymer composition obtained in the following examples and the like was evaluated by the following method (1) or (2).

(1) MFR variation rate The residence MFR test was performed using pellets of the thermoplastic polymer composition. The test is based on JIS K 7210, using a melt indexer (L217-E14011, manufactured by Techno Seven Co., Ltd.) under the conditions of a temperature in a cylinder of 270 ° C. and a load of 2.16 kg (MFR before residence) (g / 10 min. ) And post-retention MFR (g / 10 min). The MFR before residence was measured after filling the cylinder with pellets of the thermoplastic polymer composition and taking a preheating time of 5 minutes. The post-retention MFR was measured after the thermoplastic polymer composition pellets were retained in the cylinder for a total of 30 minutes including the preheat time. From the MFR before residence and the MFR after residence measured in this way, the MFR fluctuation rate was calculated based on the following formula:
MFR fluctuation rate (%)
= Absolute value of (MFR after residence-MFR before residence) x 100 / (MFR before residence)
The smaller the MFR variation rate, the better the processing stability of the thermoplastic polymer composition.

(2) MFR after residence
A residence MFR test was performed using pellets of the thermoplastic polymer composition. The test is based on JIS K 7210, using a melt indexer (L217-E14011, manufactured by Techno Seven Co., Ltd.) under the conditions of a temperature in a cylinder of 270 ° C. and a load of 2.16 kg, and MFR (g / 10 minutes after residence) ) Was measured. The post-retention MFR was measured after the thermoplastic polymer composition pellets were retained in the cylinder for a total of 30 minutes including the preheat time.
When polypropylene is used as the thermoplastic polymer, decomposition of the polypropylene proceeds due to heat during processing, and MFR increases after residence. Therefore, in the thermoplastic polymer composition containing polypropylene, the smaller the MFR after residence, the better the processing stability of the thermoplastic polymer composition.

Example 1-1: Production of Processing Stabilizer A processing stabilizer was produced by mixing compound (1-1) and maltitol in the amounts shown in Table 1.

Example 1-2: Production of thermoplastic polymer composition 0.31 part of the processing stabilizer obtained in Example 1-1 and a styrene-butadiene block copolymer ("Asaflex 830" manufactured by Asahi Kasei Corporation) 100 The resulting mixture was kneaded using a single screw extruder with a screw diameter of 30 mm (“VS30-28 type extruder” manufactured by Tanabe Plastics) at a temperature of 230 ° C. and a screw speed of 50 rpm. A strand was obtained by extrusion, and the strand was cut with a pelletizer to obtain a pellet of a thermoplastic polymer composition. The results of processing stability of the obtained thermoplastic polymer composition are shown in Table 2.

Examples 1-3 to 1-7: Production of Processing Stabilizer Compound (1-1) and maltitol were mixed in the amounts shown in Table 1 to produce a processing stabilizer.

Examples 1-8 to 1-12: Production of thermoplastic polymer composition Examples except that 0.2 parts of the processing stabilizer obtained in Examples 1-3 to 1-7 were used. In the same manner as in 1-2, pellets of a thermoplastic polymer composition were obtained. The results of processing stability of the obtained thermoplastic polymer composition are shown in Table 2.

Comparative Example 1-1: Production of thermoplastic polymer composition Example 1 except that only 0.3 part of compound (1-1) was used instead of the processing stabilizer obtained in Example 1-1. In the same manner as -2, pellets of a thermoplastic polymer composition were obtained. The results of processing stability of the obtained thermoplastic polymer composition are shown in Table 2.

From comparison between Example 1-2 and Examples 1-8 to 1-12 and Comparative Example 1-1, compound (1) and maltitol were compared with the case where compound (1) was used alone. It can be seen that the processing stability of the thermoplastic polymer composition is improved by using together.

Examples 1-13 to 1-99: Production of processing stabilizers Processing stabilizers can be obtained by mixing the raw materials listed in Tables 3-1 to 3-3.

Examples 1-100 to 1-194: Production of Thermoplastic Polymer Composition Example 1-2, except that the thermoplastic polymers and processing stabilizers listed in Tables 4-1 to 4-3 are used. In the same manner, pellets of the thermoplastic polymer composition are obtained.

The meanings of the abbreviations for the thermoplastic polymers listed in Tables 4-1 to 4-3 are as follows.
P1-1: High density polyethylene (HDPE)
P1-2: Low density polyethylene (LDPE)
P1-3: Linear low density polyethylene (LLDPE)
P1-4: Ethylene-vinyl alcohol copolymer (EVOH)
P1-5: Ethylene-ethyl acrylate copolymer (EEA)
P1-6: Ethylene-vinyl acetate copolymer (EVA)
P1-7: crystalline propylene homopolymer P1-8: propylene-ethylene random copolymer P1-9: propylene-α-olefin random copolymer P1-10: propylene-ethylene-α-olefin copolymer P1- 11: Polystyrene (PS)
P1-12: Acrylonitrile-styrene copolymer (SAN)
P1-13: Acrylonitrile-butadiene-styrene copolymer (ABS)
P1-14: Special acrylic rubber-acrylonitrile-styrene copolymer P1-15: Acrylonitrile-chlorinated polyethylene-styrene copolymer (ACS)
P1-16: Polybutadiene rubber (BR)
P1-17: Styrene-butadiene copolymer (SB)
P1-18: Chlorinated polyethylene (CPE)
P1-19: Polychloroprene P1-20: Chlorinated rubber P1-21: Polyvinyl chloride (PVC)
P1-22: Polyvinylidene chloride (PVDC)
P1-23: Methacrylic resin P1-24: Fluororesin P1-25: Polyacetal (POM)
P1-26: Grafted polyphenylene ether resin P1-27: Polyphenylene sulfide resin (PPS)
P1-28: Polyurethane (PU)
P1-29: Nylon 6 (Ny6)
P1-30: Nylon 11 (Ny11)
P1-31: Nylon 12 (Ny12)
P1-32: Nylon 610 (Ny610)
P1-33: Nylon 612 (Ny612)
P1-34: Nylon MXD6 (NyMXD6)
P1-35: Polyethylene terephthalate (PET)
P1-36: Polybutylene terephthalate (PBT)
P1-37: Polylactic acid (PLA)
P1-38: Polycarbonate (PC)
P1-39: Polyacrylate P1-40: Polysulfone (PPSU)
P1-41: Polyetheretherketone (PEEK)
P1-42: Polyethersulfone (PES)
P1-43: aromatic polyester P1-44: diallyl phthalate prepolymer P1-45: silicone resin (SI)
P1-46: 1,2-polybutadiene P1-47: polyisoprene P1-48: butadiene-acrylonitrile copolymer (NBR)
P1-49: Ethylene-methyl methacrylate copolymer (EMMA)
P1-50: Styrene-ethylene-butylene-styrene block copolymer (SEBS)
P1-51: Styrene-isoprene-styrene block copolymer (SIS)
P1-52: Styrene-butadiene thermoplastic elastomer P1-53: Polyvinyl chloride thermoplastic elastomer

Example 2-1 Production of Processing Stabilizer A processing stabilizer was produced by mixing compound (8-1) and maltitol in the amounts shown in Table 5.

Example 2-2: Production of thermoplastic polymer composition 0.11 part of the processing stabilizer obtained in Example 2-1 and 100 parts of ethylene-vinyl alcohol copolymer ("Eval F171B" manufactured by Kuraray Co., Ltd.) After dry blending, the resulting mixture was kneaded and extruded using a single screw extruder with a screw diameter of 30 mm (“VS30-28 type extruder” manufactured by Tanabe Plastics) at a temperature of 230 ° C. and a screw speed of 50 rpm. A strand was obtained, and the strand was cut with a pelletizer to obtain pellets of a thermoplastic polymer composition. Table 6 shows the results of processing stability of the obtained thermoplastic polymer composition.

Examples 2-3 to 2-7: Production of Processing Stabilizer Compound (8-1) and maltitol were mixed in the amounts shown in Table 5 to produce a processing stabilizer.

Examples 2-8 to 2-12: Production of thermoplastic polymer composition In place of the processing stabilizer obtained in Example 2-1, it was obtained in Example 2-3 to Example 2-7. A pellet of thermoplastic polymer composition was obtained in the same manner as in Example 2-2, except that 0.2 part of the processing stabilizer was used. Table 6 shows the results of processing stability of the obtained thermoplastic polymer composition.

Comparative Example 2-1 Production of Thermoplastic Polymer Composition Example 2 except that only 0.1 part of compound (8-1) was used in place of the processing stabilizer obtained in Example 2-1. In the same manner as -2, pellets of a thermoplastic polymer composition were obtained. Table 6 shows the results of processing stability of the obtained thermoplastic polymer composition.

From a comparison between Example 2-2 and Examples 2-8 to 2-12 and Comparative Example 2-1, compound (8) and maltitol were compared with the case where compound (8) was used alone. It can be seen that the processing stability of the thermoplastic polymer composition is improved by using together.

Examples 2-13 to 2-99: Production of processing stabilizers Processing stabilizers can be obtained by mixing the raw materials shown in Tables 7-1 to 7-3.

Example 2-100 to Example 2-182: Production of Thermoplastic Polymer Composition Example 2-2 except that the thermoplastic polymers and processing stabilizers listed in Tables 8-1 to 8-3 are used. In the same manner, pellets of the thermoplastic polymer composition are obtained.

The meanings of the abbreviations for thermoplastic polymers listed in Tables 8-1 to 8-3 are as follows.
P2-1: High density polyethylene (HDPE)
P2-2: Low density polyethylene (LDPE)
P2-3: Linear low density polyethylene (LLDPE)
P2-4: Ethylene-ethyl acrylate copolymer (EEA)
P2-5: Ethylene-vinyl acetate copolymer (EVA)
P2-6: Crystalline propylene homopolymer P2-7: Propylene-ethylene random copolymer P2-8: Propylene-α-olefin random copolymer P2-9: Propylene-ethylene-α-olefin copolymer P2- 10: Polystyrene (PS)
P2-11: Acrylonitrile-styrene copolymer (SAN)
P2-12: Acrylonitrile-butadiene-styrene copolymer (ABS)
P2-13: Special acrylic rubber-acrylonitrile-styrene copolymer P2-14: Acrylonitrile-chlorinated polyethylene-styrene copolymer (ACS)
P2-15: Polybutadiene rubber (BR)
P2-16: Styrene-butadiene copolymer (SB)
P2-17: Styrene-butadiene block copolymer (SBS)
P2-18: Chlorinated polyethylene (CPE)
P2-19: Polychloroprene P2-20: Chlorinated rubber P2-21: Polyvinyl chloride (PVC)
P2-22: Polyvinylidene chloride (PVDC)
P2-23: Methacrylic resin P2-24: Fluororesin P2-25: Polyacetal (POM)
P2-26: Grafted polyphenylene ether resin P2-27: Polyphenylene sulfide resin (PPS)
P2-28: Polyurethane (PU)
P2-29: Nylon 6 (Ny6)
P2-30: Nylon 11 (Ny11)
P2-31: Nylon 12 (Ny12)
P2-32: Nylon 610 (Ny610)
P2-33: Nylon 612 (Ny612)
P2-34: Nylon MXD6 (NyMXD6)
P2-35: Polyethylene terephthalate (PET)
P2-36: Polybutylene terephthalate (PBT)
P2-37: Polylactic acid (PLA)
P2-38: Polycarbonate (PC)
P2-39: Polyacrylate P2-40: Polysulfone (PPSU)
P2-41: Polyetheretherketone (PEEK)
P2-42: Polyethersulfone (PES)
P2-43: Aromatic polyester P2-44: Diallyl phthalate prepolymer P2-45: Silicone resin (SI)
P2-46: 1,2-polybutadiene P2-47: polyisoprene P2-48: butadiene-acrylonitrile copolymer (NBR)
P2-49: Ethylene-methyl methacrylate copolymer (EMMA)
P2-50: Styrene-ethylene-butylene-styrene block copolymer (SEBS)
P2-51: Styrene-isoprene-styrene block copolymer (SIS)
P2-52: Styrene-butadiene thermoplastic elastomer P2-53: Polyvinyl chloride thermoplastic elastomer

Example 3-1 Production of Processing Stabilizer A processing stabilizer was produced by mixing compound (2-1) and maltitol in the amounts shown in Table 9.

Example 3-2: Production of Processing Stabilizer Compound (2-1), maltitol and compound (1-1) were mixed in the amounts shown in Table 9 to produce a processing stabilizer.

Example 3-3: Production of thermoplastic polymer composition 0.21 part of the processing stabilizer obtained in Example 3-1 and a styrene-butadiene block copolymer ("Asaflex 830" manufactured by Asahi Kasei Corporation) 100 The resulting mixture was kneaded using a single screw extruder with a screw diameter of 30 mm (“VS30-28 type extruder” manufactured by Tanabe Plastics) at a temperature of 230 ° C. and a screw speed of 50 rpm. A strand was obtained by extrusion, and the strand was cut with a pelletizer to obtain a pellet of a thermoplastic polymer composition. Table 10 shows the results of processing stability of the obtained thermoplastic polymer composition.

Example 3-4: Production of thermoplastic polymer composition In place of the processing stabilizer obtained in Example 3-1, 0.51 part of the processing stabilizer obtained in Example 3-2 was used. Except this, pellets of a thermoplastic polymer composition were obtained in the same manner as in Example 3-3. Table 10 shows the results of processing stability of the obtained thermoplastic polymer composition.

Comparative Example 3-1: Production of thermoplastic polymer composition Example 3 except that only 0.2 part of compound (2-1) was used instead of the processing stabilizer obtained in Example 3-1. In the same manner as -3, pellets of a thermoplastic polymer composition were obtained. Table 10 shows the results of processing stability of the obtained thermoplastic polymer composition.

Example 3-5: Production of Processing Stabilizer A processing stabilizer was produced by mixing compound (2-2) and maltitol in the amounts shown in Table 9.

Example 3-6 Production of Processing Stabilizer A processing stabilizer was produced by mixing compound (2-3) and maltitol in the amounts shown in Table 9.

Example 3-7: Production of thermoplastic polymer composition In place of the processing stabilizer obtained in Example 3-1, 0.2 part of the processing stabilizer obtained in Example 3-5 was used. A pellet of a thermoplastic polymer composition was obtained in the same manner as in Example 3-3, except that 100 parts of polypropylene (“NOBREN” manufactured by Sumitomo Chemical Co., Ltd.) was used instead of the styrene-butadiene block copolymer. . Table 10 shows the results of processing stability of the obtained thermoplastic polymer composition.

Comparative Example 3-2: Production of thermoplastic polymer composition Example 3 except that only 0.1 part of compound (2-2) was used in place of the processing stabilizer obtained in Example 3-5. In the same manner as in -7, pellets of a thermoplastic polymer composition were obtained. Table 10 shows the results of processing stability of the obtained thermoplastic polymer composition.

Example 3-8: Production of thermoplastic polymer composition In place of the processing stabilizer obtained in Example 3-5, 0.2 part of the processing stabilizer obtained in Example 3-6 was used. Except this, pellets of a thermoplastic polymer composition were obtained in the same manner as in Example 3-7. Table 10 shows the results of processing stability of the obtained thermoplastic polymer composition.

Comparative Example 3-3: Production of thermoplastic polymer composition Example 3 except that only 0.1 part of compound (2-3) was used in place of the processing stabilizer obtained in Example 3-6. In the same manner as in -8, pellets of a thermoplastic polymer composition were obtained. Table 10 shows the results of processing stability of the obtained thermoplastic polymer composition.

From the results shown in Table 10, it can be seen that the combined use of compound (2) and maltitol improves the processing stability of the thermoplastic polymer composition as compared to the case where compound (2) is used alone. . Moreover, also when using a compound (1) in addition to a compound (2), it turns out that the processing stability of a thermoplastic polymer composition improves by using maltitol together.

Examples 3-9 to 3-76: Production of Processing Stabilizers Processing stabilizers can be obtained by mixing the raw materials listed in Tables 11-1 to 11-3.

Examples 3-77 to 3-141: Production of thermoplastic polymer compositions Example 3-3, except that the thermoplastic polymers and processing stabilizers listed in Tables 12-1 and 12-2 are used. In the same manner, pellets of the thermoplastic polymer composition are obtained.

The meanings of the abbreviations of the thermoplastic polymers described in Table 12-1 and Table 12-2 are as follows.
P3-1: High density polyethylene (HDPE)
P3-2: Low density polyethylene (LDPE)
P3-3: Linear low density polyethylene (LLDPE)
P3-4: Ethylene-vinyl alcohol copolymer (EVOH)
P3-5: Ethylene-ethyl acrylate copolymer (EEA)
P3-6: Ethylene-vinyl acetate copolymer (EVA)
P3-7: Propylene-ethylene random copolymer P3-8: Propylene-α-olefin random copolymer P3-9: Propylene-ethylene-α-olefin copolymer P3-10: Polystyrene (PS)
P3-11: Acrylonitrile-styrene copolymer (SAN)
P3-12: Acrylonitrile-butadiene-styrene copolymer (ABS)
P3-13: Special acrylic rubber-acrylonitrile-styrene copolymer P3-14: Acrylonitrile-chlorinated polyethylene-styrene copolymer (ACS)
P3-15: Polybutadiene rubber (BR)
P3-16: Styrene-butadiene copolymer (SB)
P3-17: Styrene-butadiene block copolymer (SBS)
P3-18: Chlorinated polyethylene (CPE)
P3-19: Polychloroprene P3-20: Chlorinated rubber P3-21: Polyvinyl chloride (PVC)
P3-22: Polyvinylidene chloride (PVDC)
P3-23: Methacrylic resin P3-24: Fluororesin P3-25: Polyacetal (POM)
P3-26: Grafted polyphenylene ether resin P3-27: Polyphenylene sulfide resin (PPS)
P3-28: Polyurethane (PU)
P3-29: Nylon 6 (Ny6)
P3-30: Nylon 11 (Ny11)
P3-31: Nylon 12 (Ny12)
P3-32: Nylon 610 (Ny610)
P3-33: Nylon 612 (Ny612)
P3-34: Nylon MXD6 (NyMXD6)
P3-35: Polyethylene terephthalate (PET)
P3-36: Polybutylene terephthalate (PBT)
P3-37: Polylactic acid (PLA)
P3-38: Polycarbonate (PC)
P3-39: Polyacrylate P3-40: Polysulfone (PPSU)
P3-41: Polyetheretherketone (PEEK)
P3-42: Polyethersulfone (PES)
P3-43: aromatic polyester P3-44: diallyl phthalate prepolymer P3-45: silicone resin (SI)
P3-46: 1,2-polybutadiene P3-47: polyisoprene P3-48: butadiene-acrylonitrile copolymer (NBR)
P3-49: Ethylene-methyl methacrylate copolymer (EMMA)
P3-50: Styrene-ethylene-butylene-styrene block copolymer (SEBS)
P3-51: Styrene-isoprene-styrene block copolymer (SIS)
P3-52: Styrene-butadiene thermoplastic elastomer P3-53: Polyvinyl chloride thermoplastic elastomer

Example 4-1 Production of Processing Stabilizer A processing stabilizer was produced by mixing 0.1 part of Compound (3-1) and 0.1 part of maltitol.

Example 4-2: Production of Thermoplastic Polymer Composition After dry blending 0.2 part of the processing stabilizer obtained in Example 4-1 and 100 parts of polypropylene (“Nobrene” manufactured by Sumitomo Chemical Co., Ltd.) Then, the obtained mixture was kneaded and extruded at a temperature of 230 ° C. and a screw rotation speed of 50 rpm using a single screw extruder having a screw diameter of 30 mm (“VS30-28 type extruder” manufactured by Tanabe Plastics) to obtain a strand, The strand was cut with a pelletizer to obtain a pellet of a thermoplastic polymer composition.

Comparative Example 4-1 Production of Thermoplastic Polymer Composition Example 4 except that only 0.1 part of Compound (3-1) was used in place of the processing stabilizer obtained in Example 4-1. In the same manner as -2, pellets of a thermoplastic polymer composition were obtained.

The composition of the processing stabilizer obtained in Example 4-1 is shown in Table 13, and the composition of the thermoplastic polymer composition obtained in Example 4-2 and Comparative Example 4-1 and the results of processing stability are shown in Table 13. 14 shows.

Example 4-3 to Example 4-132: Production of Processing Stabilizer A processing stabilizer is obtained by mixing the components described in Table 15-1 to Table 15-4. These processing stabilizers are expected to improve the processing stability of the thermoplastic polymer composition.

Examples 4-133 to 4-205: Production of thermoplastic polymer compositions Example 4-2 except that the thermoplastic polymers and process stabilizers listed in Tables 16-1 and 16-2 are used. In the same manner, pellets of the thermoplastic polymer composition are obtained. The resulting thermoplastic polymer composition is expected to be excellent in processing stability.

The meanings of the abbreviations of the thermoplastic polymers described in Table 16-1 and Table 16-2 are as follows.
P4-1: High density polyethylene (HDPE)
P4-2: Low density polyethylene (LDPE)
P4-3: Linear low density polyethylene (LLDPE)
P4-4: Ethylene-vinyl alcohol copolymer (EVOH)
P4-5: Ethylene-ethyl acrylate copolymer (EEA)
P4-6: Ethylene-vinyl acetate copolymer (EVA)
P4-7: Propylene-ethylene random copolymer P4-8: Propylene-α-olefin random copolymer P4-9: Propylene-ethylene-α-olefin copolymer P4-10: Polystyrene (PS)
P4-11: Acrylonitrile-styrene copolymer (SAN)
P4-12: Acrylonitrile-butadiene-styrene copolymer (ABS)
P4-13: Special acrylic rubber-acrylonitrile-styrene copolymer P4-14: Acrylonitrile-chlorinated polyethylene-styrene copolymer (ACS)
P4-15: Polybutadiene rubber (BR)
P4-16: Styrene-butadiene copolymer (SB)
P4-17: Styrene-butadiene block copolymer (SBS)
P4-18: Chlorinated polyethylene (CPE)
P4-19: Polychloroprene P4-20: Chlorinated rubber P4-21: Polyvinyl chloride (PVC)
P4-22: Polyvinylidene chloride (PVDC)
P4-23: Methacrylic resin P4-24: Fluororesin P4-25: Polyacetal (POM)
P4-26: Grafted polyphenylene ether resin P4-27: Polyphenylene sulfide resin (PPS)
P4-28: Polyurethane (PU)
P4-29: Nylon 6 (Ny6)
P4-30: Nylon 11 (Ny11)
P4-31: Nylon 12 (Ny12)
P4-32: Nylon 610 (Ny610)
P4-33: Nylon 612 (Ny612)
P4-34: Nylon MXD6 (NyMXD6)
P4-35: Polyethylene terephthalate (PET)
P4-36: Polybutylene terephthalate (PBT)
P4-37: Polylactic acid (PLA)
P4-38: Polycarbonate (PC)
P4-39: Polyacrylate P4-40: Polysulfone (PPSU)
P4-41: Polyetheretherketone (PEEK)
P4-42: Polyethersulfone (PES)
P4-43: Aromatic polyester P4-44: Diallyl phthalate prepolymer P4-45: Silicone resin (SI)
P4-46: 1,2-polybutadiene P4-47: polyisoprene P4-48: butadiene-acrylonitrile copolymer (NBR)
P4-49: Ethylene-methyl methacrylate copolymer (EMMA)
P4-50: Styrene-ethylene-butylene-styrene block copolymer (SEBS)
P4-51: Styrene-isoprene-styrene block copolymer (SIS)
P4-52: Styrene-butadiene thermoplastic elastomer P4-53: Polyvinyl chloride thermoplastic elastomer

The thermoplastic polymer composition of the present invention containing at least one selected from the group consisting of compound (1), compound (2), compound (3) to compound (7) or compound (8) and maltitol is excellent. Show processing stability. The thermoplastic polymer composition of the present invention can be used, for example, in the production of electronic parts, automobile parts, watch parts, camera parts, leisure parts and the like.

Claims

Formula (1):

[In Formula (1),
Each R 1 and each R 2 independently represent a C 1-8 alkyl group, a C 6-12 aryl group, or a C 7-18 aralkyl group.
R 3 represents a hydrogen atom or a C 1-3 alkyl group.
R 4 represents a hydrogen atom or a methyl group. ]
A thermoplastic polymer composition comprising a compound represented by the formula: maltitol and a thermoplastic polymer.
The thermoplastic polymer composition according to claim 1, wherein the total amount of the compound represented by the formula (1) and maltitol is 0.001 to 3 parts by weight with respect to 100 parts by weight of the thermoplastic polymer.
Formula (1):

[In Formula (1),
Each R 1 and each R 2 independently represent a C 1-8 alkyl group, a C 6-12 aryl group, or a C 7-18 aralkyl group.
R 3 represents a hydrogen atom or a C 1-3 alkyl group.
R 4 represents a hydrogen atom or a methyl group. ]
The processing stabilizer characterized by containing the compound shown by these, and maltitol.
The compound represented by the formula (1) is 2,4-di-t-pentyl-6- [1- (3,5-di-t-pentyl-2-hydroxyphenyl) ethyl] phenyl acrylate and 2-t- The processing stabilizer according to claim 3, which is at least one selected from the group consisting of butyl-6- (3-tert-butyl-2-hydroxy-5-methylbenzyl) -4-methylphenyl acrylate.
The processing stabilizer according to claim 3 or 4, wherein the content of maltitol is 0.1 to 95% by weight in the total of the compound represented by formula (1) and maltitol.
Furthermore, Formula (2):

[In Formula (2),
Each R 5 and each R 6 independently represent a hydrogen atom or a C 1-6 alkyl group.
L 1 represents an n-valent C 1-24 alcohol residue which may contain a hetero atom, and n represents an integer of 1 to 4. Here, the alcohol residue represents the remaining group obtained by removing a hydrogen atom from the hydroxy group of the alcohol. ]
The processing stabilizer according to any one of claims 3 to 5, comprising a compound represented by the formula:
Further, the formulas (3) to (7):

[In the formula (3), each R 7 and each R 8 independently represent a hydrogen atom, a C 1-9 alkyl group, a C 5-8 cycloalkyl group, a C 6-12 alkylcycloalkyl group, a C 7- 12 represents an aralkyl group or a phenyl group. ]

[In the formula (4), each R 9 independently represents a hydrogen atom, a C 1-9 alkyl group, a C 5-8 cycloalkyl group, a C 6-12 alkylcycloalkyl group, a C 7-12 aralkyl group or Represents a phenyl group. ]

[In the formula (5), each R 10 independently represents a C 1-18 alkyl group, or a C 1-9 alkyl group, a C 5-8 cycloalkyl group, a C 6-12 alkylcycloalkyl group, and a C 7. 12 represents a phenyl group which may be substituted with at least one selected from the group consisting of -12 aralkyl groups. ]

[In Formula (6),
Each R 11 and each R 12 independently represent a hydrogen atom, a C 1-9 alkyl group, a C 5-8 cycloalkyl group, a C 6-12 alkylcycloalkyl group, a C 7-12 aralkyl group or a phenyl group. To express.
Each L 2 independently represents a single bond, a sulfur atom or formula (6a):

{In Formula (6a), R 13 and R 14 each independently represent a hydrogen atom or a C 1-7 alkyl group on condition that the total number of carbon atoms is 7 or less. } Represents a divalent group.
Each L 3 independently represents a C 2-8 alkylene group. ]

[In Formula (7),
Each R 15 and each R 16 independently represents a hydrogen atom, a C 1-9 alkyl group, a C 5-8 cycloalkyl group, a C 6-12 alkylcycloalkyl group, a C 7-12 aralkyl group or a phenyl group. To express.
R 17 is a C 1-8 alkyl group, or at least one selected from the group consisting of a C 1-9 alkyl group, a C 5-8 cycloalkyl group, a C 6-12 alkylcycloalkyl group, and a C 7-12 aralkyl group. Represents an optionally substituted phenyl group.
L 4 represents a single bond, a sulfur atom or the formula (7a):

{In Formula (7a), R 18 and R 19 each independently represent a hydrogen atom or a C 1-7 alkyl group on condition that the total number of carbon atoms is 7 or less. } Represents a divalent group. ]
The processing stabilizer according to any one of claims 3 to 6, which contains at least one selected from the group consisting of compounds represented by:
Furthermore, Formula (3):

[In the formula (3), each R 7 and each R 8 independently represent a hydrogen atom, a C 1-9 alkyl group, a C 5-8 cycloalkyl group, a C 6-12 alkylcycloalkyl group, a C 7- 12 represents an aralkyl group or a phenyl group. ]
The processing stabilizer according to any one of claims 3 to 6, comprising a compound represented by the formula:
Formula (8):

[In Formula (8),
Each R 20 , each R 21 , R 23 and R 24 is independently a hydrogen atom, a C 1-8 alkyl group, a C 5-8 cycloalkyl group, a C 6-12 alkyl cycloalkyl group, a C 7-12 Represents an aralkyl group or a phenyl group.
Each R 22 independently represents a hydrogen atom or a C 1-8 alkyl group.
L 5 represents a single bond, a sulfur atom or the formula (8a):

{In Formula (8a), R 25 represents a hydrogen atom, a C 1-8 alkyl group or a C 5-8 cycloalkyl group. } Represents a divalent group.
L 6 represents a C 2-8 alkylene group or formula (8b):

{In Formula (8b), L 7 represents a single bond or a C 1-8 alkylene group. * Represents bonding to the oxygen atom side. } Represents a divalent group.
One of Z 1 and Z 2 represents a hydroxy group, a C 1-8 alkyl group, a C 1-8 alkoxy group or a C 7-12 aralkyloxy group, and the other represents a hydrogen atom or a C 1-8 alkyl group Represents. ]
A thermoplastic polymer composition comprising a compound represented by the formula: maltitol and a thermoplastic polymer.
The thermoplastic polymer composition according to claim 9, wherein the total amount of the compound represented by the formula (8) and maltitol is 0.001 to 3 parts by weight with respect to 100 parts by weight of the thermoplastic polymer.
Formula (8):

[In Formula (8),
Each R 20 , each R 21 , R 23 and R 24 is independently a hydrogen atom, a C 1-8 alkyl group, a C 5-8 cycloalkyl group, a C 6-12 alkyl cycloalkyl group, a C 7-12 Represents an aralkyl group or a phenyl group.
Each R 22 independently represents a hydrogen atom or a C 1-8 alkyl group.
L 5 represents a single bond, a sulfur atom or the formula (8a):

{In Formula (8a), R 25 represents a hydrogen atom, a C 1-8 alkyl group or a C 5-8 cycloalkyl group. } Represents a divalent group.
L 6 represents a C 2-8 alkylene group or formula (8b):

{In Formula (8b), L 7 represents a single bond or a C 1-8 alkylene group. * Represents bonding to the oxygen atom side. } Represents a divalent group.
One of Z 1 and Z 2 represents a hydroxy group, a C 1-8 alkyl group, a C 1-8 alkoxy group or a C 7-12 aralkyloxy group, and the other represents a hydrogen atom or a C 1-8 alkyl group Represents. ]
The processing stabilizer characterized by containing the compound shown by these, and maltitol.
The compound represented by the formula (8) is 6- [3- (3-t-butyl-4-hydroxy-5-methylphenyl) propoxy] -2,4,8,10-tetra-t-butyldibenz [d, The processing stabilizer according to claim 11, which is f] [1,3,2] dioxaphosphepine.
The processing stabilizer according to claim 11 or 12, wherein the content of maltitol is 0.1 to 95% by weight in the total of the compound represented by formula (8) and maltitol.
Furthermore, Formula (2):

[In Formula (2),
Each R 7 and each R 8 each independently represents a hydrogen atom or a C 1-6 alkyl group.
L 4 represents an n-valent C 1-24 alcohol residue which may contain a hetero atom, and n represents an integer of 1 to 4. Here, the alcohol residue represents the remaining group obtained by removing a hydrogen atom from the hydroxy group of the alcohol. ]
The processing stabilizer according to any one of claims 11 to 13, which comprises a compound represented by the formula:
Further, the formulas (3) to (7):

[In the formula (3), each R 9 and each R 10 independently represents a hydrogen atom, a C 1-9 alkyl group, a C 5-8 cycloalkyl group, a C 6-12 alkylcycloalkyl group, a C 7- 12 represents an aralkyl group or a phenyl group. ]

[In the formula (4), each R 11 independently represents a hydrogen atom, a C 1-9 alkyl group, a C 5-8 cycloalkyl group, a C 6-12 alkylcycloalkyl group, a C 7-12 aralkyl group or Represents a phenyl group. ]

[In the formula (5), each R 12 independently represents a C 1-18 alkyl group, or a C 1-9 alkyl group, a C 5-8 cycloalkyl group, a C 6-12 alkylcycloalkyl group, and a C 7. 12 represents a phenyl group which may be substituted with at least one selected from the group consisting of -12 aralkyl groups. ]

[In Formula (6),
Each R 13 and each R 14 independently represents a hydrogen atom, a C 1-9 alkyl group, a C 5-8 cycloalkyl group, a C 6-12 alkylcycloalkyl group, a C 7-12 aralkyl group or a phenyl group. To express.
Each L 5 independently represents a single bond, a sulfur atom, or formula (6a):

{In Formula (6a), R 15 and R 16 each independently represent a hydrogen atom or a C 1-7 alkyl group on condition that the total number of carbon atoms is 7 or less. } Represents a divalent group.
Each L 6 independently represents a C 2-8 alkylene group. ]

[In Formula (7),
Each R 17 and each R 18 independently represents a hydrogen atom, a C 1-9 alkyl group, a C 5-8 cycloalkyl group, a C 6-12 alkylcycloalkyl group, a C 7-12 aralkyl group or a phenyl group. To express.
R 19 is a C 1-8 alkyl group, or at least one selected from the group consisting of a C 1-9 alkyl group, a C 5-8 cycloalkyl group, a C 6-12 alkylcycloalkyl group, and a C 7-12 aralkyl group. Represents an optionally substituted phenyl group.
L 7 is a single bond, a sulfur atom or the formula (7a):

{In Formula (7a), R 20 and R 21 each independently represent a hydrogen atom or a C 1-7 alkyl group, provided that the total number of carbon atoms is 7 or less. } Represents a divalent group. ]
The processing stabilizer according to any one of claims 11 to 14, comprising at least one selected from the group consisting of compounds represented by:
Furthermore, Formula (3):

[In the formula (3), each R 9 and each R 10 independently represents a hydrogen atom, a C 1-9 alkyl group, a C 5-8 cycloalkyl group, a C 6-12 alkylcycloalkyl group, a C 7- 12 represents an aralkyl group or a phenyl group. ]
The processing stabilizer according to any one of claims 11 to 14, which comprises a compound represented by the formula:
Formula (2):

[In Formula (2),
Each R 5 and each R 6 independently represent a hydrogen atom or a C 1-6 alkyl group.
L 1 represents an n-valent C 1-24 alcohol residue which may contain a hetero atom, and n represents an integer of 1 to 4. Here, the alcohol residue represents the remaining group obtained by removing a hydrogen atom from the hydroxy group of the alcohol. ]
A thermoplastic polymer composition comprising a compound represented by the formula: maltitol and a thermoplastic polymer.
The thermoplastic polymer composition according to claim 17, wherein the total amount of the compound represented by the formula (2) and maltitol is 0.001 to 3 parts by weight with respect to 100 parts by weight of the thermoplastic polymer.
The thermoplastic polymer composition according to claim 17 or 18, wherein the thermoplastic polymer is a styrene-butadiene block copolymer.
Formula (2):

[In Formula (2),
Each R 5 and each R 6 independently represent a hydrogen atom or a C 1-6 alkyl group.
L 1 represents an n-valent C 1-24 alcohol residue which may contain a hetero atom, and n represents an integer of 1 to 4. Here, the alcohol residue represents the remaining group obtained by removing a hydrogen atom from the hydroxy group of the alcohol. ]
The processing stabilizer characterized by containing the compound shown by these, and maltitol.
The compound represented by the formula (2) is octadecyl 3- (3,5-di-t-butyl-4-hydroxyphenyl) propionate, 3,9-bis [2- {3- (3-t-butyl-4 -Hydroxy-5-methylphenyl) propionyloxy} -1,1-dimethylethyl] -2,4,8,10-tetraoxaspiro [5.5] undecane and pentaerythritol tetrakis [3- (3,5-di The processing stabilizer according to claim 20, which is at least one selected from the group consisting of -t-butyl-4-hydroxyphenyl) propionate].
The processing stabilizer according to claim 20 or 21, wherein the content of maltitol is 0.1 to 95% by weight in the total of the compound represented by formula (2) and maltitol.
Furthermore, Formula (1):

[In Formula (1),
Each R 1 and each R 2 independently represent a C 1-8 alkyl group, a C 6-12 aryl group, or a C 7-18 aralkyl group.
R 3 represents a hydrogen atom or a C 1-3 alkyl group.
R 4 represents a hydrogen atom or a methyl group. ]
The processing stabilizer according to any one of claims 20 to 22, which comprises a compound represented by the formula:
Formula (3) to Formula (7):

[In the formula (3), each R 7 and each R 8 independently represent a hydrogen atom, a C 1-9 alkyl group, a C 5-8 cycloalkyl group, a C 6-12 alkylcycloalkyl group, a C 7- 12 represents an aralkyl group or a phenyl group. ]

[In the formula (4), each R 9 independently represents a hydrogen atom, a C 1-9 alkyl group, a C 5-8 cycloalkyl group, a C 6-12 alkylcycloalkyl group, a C 7-12 aralkyl group or Represents a phenyl group. ]

[In the formula (5), each R 10 independently represents a C 1-18 alkyl group, or a C 1-9 alkyl group, a C 5-8 cycloalkyl group, a C 6-12 alkylcycloalkyl group, and a C 7. 12 represents a phenyl group which may be substituted with at least one selected from the group consisting of -12 aralkyl groups. ]

[In Formula (6),
Each R 11 and each R 12 independently represent a hydrogen atom, a C 1-9 alkyl group, a C 5-8 cycloalkyl group, a C 6-12 alkylcycloalkyl group, a C 7-12 aralkyl group or a phenyl group. To express.
Each L 2 independently represents a single bond, a sulfur atom or formula (6a):

{In Formula (6a), R 13 and R 14 each independently represent a hydrogen atom or a C 1-7 alkyl group on condition that the total number of carbon atoms is 7 or less. } Represents a divalent group.
Each L 3 independently represents a C 2-8 alkylene group. ]

[In Formula (7),
Each R 15 and each R 16 independently represents a hydrogen atom, a C 1-9 alkyl group, a C 5-8 cycloalkyl group, a C 6-12 alkylcycloalkyl group, a C 7-12 aralkyl group or a phenyl group. To express.
R 17 is a C 1-8 alkyl group, or at least one selected from the group consisting of a C 1-9 alkyl group, a C 5-8 cycloalkyl group, a C 6-12 alkylcycloalkyl group, and a C 7-12 aralkyl group. Represents an optionally substituted phenyl group.
L 4 represents a single bond, a sulfur atom or the formula (7a):

{In Formula (7a), R 18 and R 19 each independently represent a hydrogen atom or a C 1-7 alkyl group on condition that the total number of carbon atoms is 7 or less. } Represents a divalent group. ]
A thermoplastic polymer composition comprising at least one selected from the group consisting of compounds represented by: maltitol and a thermoplastic polymer.
The total amount of the compound selected from the group consisting of the compounds represented by formulas (3) to (7) and maltitol is 0.001 to 3 parts by weight with respect to 100 parts by weight of the thermoplastic polymer. The thermoplastic polymer composition as described.
The thermoplastic polymer composition according to claim 24 or 25, wherein the thermoplastic polymer is a styrene-butadiene block copolymer.
Formula (3) to Formula (7):

[In the formula (3), each R 7 and each R 8 independently represent a hydrogen atom, a C 1-9 alkyl group, a C 5-8 cycloalkyl group, a C 6-12 alkylcycloalkyl group, a C 7- 12 represents an aralkyl group or a phenyl group. ]

[In the formula (4), each R 9 independently represents a hydrogen atom, a C 1-9 alkyl group, a C 5-8 cycloalkyl group, a C 6-12 alkylcycloalkyl group, a C 7-12 aralkyl group or Represents a phenyl group. ]

[In the formula (5), each R 10 independently represents a C 1-18 alkyl group, or a C 1-9 alkyl group, a C 5-8 cycloalkyl group, a C 6-12 alkylcycloalkyl group, and a C 7. 12 represents a phenyl group which may be substituted with at least one selected from the group consisting of -12 aralkyl groups. ]

[In Formula (6),
Each R 11 and each R 12 independently represent a hydrogen atom, a C 1-9 alkyl group, a C 5-8 cycloalkyl group, a C 6-12 alkylcycloalkyl group, a C 7-12 aralkyl group or a phenyl group. To express.
Each L 2 independently represents a single bond, a sulfur atom or formula (6a):

{In Formula (6a), R 13 and R 14 each independently represent a hydrogen atom or a C 1-7 alkyl group on condition that the total number of carbon atoms is 7 or less. } Represents a divalent group.
Each L 3 independently represents a C 2-8 alkylene group. ]

[In Formula (7),
Each R 15 and each R 16 independently represents a hydrogen atom, a C 1-9 alkyl group, a C 5-8 cycloalkyl group, a C 6-12 alkylcycloalkyl group, a C 7-12 aralkyl group or a phenyl group. To express.
R 17 is a C 1-8 alkyl group, or at least one selected from the group consisting of a C 1-9 alkyl group, a C 5-8 cycloalkyl group, a C 6-12 alkylcycloalkyl group, and a C 7-12 aralkyl group. Represents an optionally substituted phenyl group.
L 4 represents a single bond, a sulfur atom or the formula (7a):

{In Formula (7a), R 18 and R 19 each independently represent a hydrogen atom or a C 1-7 alkyl group on condition that the total number of carbon atoms is 7 or less. } Represents a divalent group. ]
A processing stabilizer comprising at least one selected from the group consisting of compounds represented by the formula (I) and maltitol.
The processing stabilizer according to claim 27, wherein at least one selected from the group consisting of compounds represented by formulas (3) to (7) is a compound represented by formula (3).
The processing stabilizer according to claim 28, wherein the compound represented by the formula (3) is tris (2,4-di-t-butylphenyl) phosphite.