JPH07267971A - Organic phosphite composition - Google Patents

Abstract

PURPOSE:To provide the subject composition capable of remarkably improving the processing stability of a synthetic resin when added to the resin, by adding a small amount of a specific alkanolamine to a specific cyclic organic phosphite compound. CONSTITUTION:This composition comprises (A) 100 pts.wt. of a cyclic organic phosphite compound of formula I (R1 R2 each is alkyl; R3 is H, alkyl; A is the residue produced by removing H from the hydroxyl group of a monohydric to trihydric alcohol, F; n is 1-3; m is 0,1) (e.g. a compound of formula II) and (B) 0.01-5 pts.-wt., preferably 0.05-3 pts.wt., of an alcoholamine compound of formula III [R4 is H, -(R6-O)pH, etc.; R5 is alkyl, -(R5-O)qH, etc.; R6 is alkylene; m, n, p, q each is 1-5] (e.g. triethanolamine). When the composition is added to a synthetic resin, the composition is preferably added in an amount of 0.005-5 pts.wt. per 100 pts.wt. of the synthetic resin.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an organic phosphite composition, and more particularly to an organic phosphite composition comprising a specific cyclic organic phosphite compound containing a small amount of alkanolamines. The present invention relates to a synthetic resin composition containing a phosphite composition and having excellent stability during processing.

[0002]

BACKGROUND OF THE INVENTION Organic phosphite compounds include polyethylene, polypropylene,
It is a stabilizer that is widely used to prevent deterioration of synthetic resins such as polyvinyl chloride due to the action of heat and light, and has a relatively excellent antioxidant ability, especially to improve stability during processing. Is used for the purpose.

However, the above-mentioned organic phosphite compound has a drawback that it is rapidly hydrolyzed during storage, particularly in moist air, and its action and effect as a stabilizer is significantly reduced. Organic phosphite compositions have been proposed in which the compound contains a small amount of an amine compound.

For example, Japanese Unexamined Patent Publication (Kokai) No. 52-22042 proposes an organic phosphite composition comprising dialkylpentaerythritol diphosphite or polyalkylbisphenol A polyphosphite and triisopropanolamine. No. 145742 proposes an organic phosphite composition comprising bis (2,4-dialkylphenyl) pentaerythritol diphosphite and triisopropanolamine, and JP-A No. 61-17595 discloses an organic phosphite composition. An organic phosphite composition composed of a phyto compound and hexamethylenetetramine has been proposed, and in JP-A-62-223290, bis (3,6-di-tert-butyl-4-alkylphenyl) pentaerythritol diphosphite. And non-aromatic amine Organic phosphite compositions and the like have been proposed. In these organic phosphite compositions, the hydrolyzability of the organic phosphite compound is improved to some extent. In particular, the stability in the case of processing was not yet satisfactory.

Further, the specific cyclic organic phosphite compound used in the present invention is disclosed in, for example, JP-A-1-254769.
In the publication, it is proposed to add a phenolic antioxidant to a synthetic resin in combination, and there is a description that it has an improving effect on stability during processing, but it is not yet satisfactory. Further, since it has excellent hydrolysis resistance, it has not been proposed so far to use an amine compound in combination as described above.

Therefore, it is an object of the present invention to provide an organic phosphite composition which, when incorporated in a synthetic resin, improves the stability of the synthetic resin during processing.

[0007]

Means for Solving the Problems As a result of intensive studies by the present inventors, an organic phosphite composition obtained by containing a specific alkanolamine in a specific cyclic organic phosphite compound has achieved the above object. It was found that it would be obtained.

The present invention was made on the basis of the above findings, and 100 parts by weight of a cyclic organic phosphite compound represented by the following general formula (I) represented by the general formula (I): The present invention provides an organic phosphite composition containing 0.01 to 5 parts by weight of an alkanolamine represented by the general formula (II) of the following [Chemical formula 4] (the same as the above [Chemical formula 2]). .

[0009]

[Chemical 3]

[0010]

[Chemical 4]

The organic phosphite composition of the present invention will be described in detail below.

The organic phosphite composition of the present invention comprises a cyclic organic phosphite compound represented by the general formula (I) and an alkanolamine represented by the general formula (II). is there.

By incorporating the cyclic organic phosphite compound in a synthetic resin, the stability thereof, particularly the stability during processing, is improved.

In the above cyclic organic phosphite compound, the alkyl groups represented by R ₁ , R ₂ and R ₃ in the above general formula (I) include methyl, ethyl, propyl, isopropyl, butyl, isobutyl and secondary alkyl groups. Butyl, tert-butyl, amyl, isoamyl, tert-amyl, hexyl, heptyl, octyl, 2-ethylhexyl, tert-octyl,
Nonyl, decyl, undecyl, dodecyl, tridecyl,
Examples thereof include groups such as tetradecyl, pentadecyl, hexadecyl, heptadecyl, octadecyl, nonadecyl, and eicosyl. Examples of alcohols that give an alcohol residue represented by A include methanol, ethanol, n-propanol, isopropanol, n-butanol, and tert.
-Butanol, n-pentanol, isopentanol,
tert-pentanol, n-hexanol, tert
-Hexanol, n-heptanol, isoheptanol, tert-heptanol, n-octanol, 2-
Monoalcohols such as ethylhexanol, tert-octanol, n-nonyl alcohol, isononyl alcohol, tert-nonyl alcohol, n-decanol, isodecanol, lauryl alcohol, myristyl alcohol, palmityl alcohol, stearyl alcohol, ethylene glycol, diethylene glycol, triethyl alcohol. Ethylene glycol, propylene glycol, 1,4-
Butanediol, 1,6-hexanediol, neopentyl glycol, 3,9-bis [1,1-dimethyl-2
-Hydroxyethyl) -2,4,8,10-tetraoxaspiro [5.5] undecane and other glycols, as well as triisopropanolamine and trimethylolpropane and other triols.

Therefore, examples of the cyclic organic phosphite compound represented by the above general formula (I) used in the present invention include compounds Nos. 1 to 5 of the following [Chemical formula 5] to [Chemical formula 15].
No. 11 etc.

[0016]

[Chemical 5]

[0017]

[Chemical 6]

[0018]

[Chemical 7]

[0019]

[Chemical 8]

[0020]

[Chemical 9]

[0021]

[Chemical 10]

[0022]

[Chemical 11]

[0023]

[Chemical 12]

[0024]

[Chemical 13]

[0025]

[Chemical 14]

[0026]

[Chemical 15]

Further, the alkanolamines improve the effect of the cyclic organic phosphite compound as a stabilizer for the synthetic resin.

In the above alkanolamines, the alkyl groups represented by R ₄ and R ₅ in the above general formula (II) include methyl, ethyl, propyl, isopropyl, butyl, isobutyl, sec-butyl and tert-butyl. Groups such as, amyl, isoamyl, tertiary amyl, hexyl, heptyl, octyl, 2-ethylhexyl, tertiary octyl, nonyl, decyl, undecyl, dodecyl, tridecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl, octadecyl, nonadecyl, eicosyl. Examples of the alkylene group represented by R ₆ and R ₇ include groups such as methylene, ethylene, trimethylene, propylene, tetramethylene, isobutylene, pentamethylene and hexamethylene, and further mixed alkylene groups thereof. May be.

Therefore, the alkanolamines represented by the above general formula (II) used in the present invention include, for example, trialkanolamines such as triethanolamine, triisopropanolamine and tri-n-propanolamine, and diethanol. Dialkanol / aliphatic amine such as aliphatic amine, diisopropanol / aliphatic amine, di-n-propanol / aliphatic amine (specifically, diethanol / dodecylamine, diethanol / octadecylamine, diethanol / beef tallow alkylamine , Diethanol / soybean alkylamine, diethanol / oleylamine, diethanol / octylamine, diethanol / coconut alkylamine, diethanol / hardened tallow alkylamine, diethanol / hexadecylamine, etc.), diisopro Noruamin, diethanolamine, tetraethanol ethylenediamine, and di alkanolamines, such as tetra isopropanol ethylenediamine and the like, further ethylene oxide to these alkanolamines, such as those obtained by adding an alkylene oxide such as propylene oxide.

The content of the alkanolamines is 100 parts by weight of the cyclic organic phosphite compound.
It is 0.01 to 5 parts by weight, preferably 0.05 to 3 parts by weight. When the content is less than 0.01 part by weight, the effect is hardly seen, and when it is used in excess of 5 parts by weight, it is colored when the organic phosphite composition is added to the synthetic resin. It causes drawbacks such as.

The organic phosphite composition of the present invention can improve the stability of the synthetic resin, especially the stability during processing. The synthetic resin composition contains a stabilizing effective amount. It can be a thing.

Examples of the synthetic resin include α-olefin polymers such as polyethylene, polypropylene, polybutene and poly-3-methylbutene, ethylene-vinyl acetate copolymers and ethylene-propylene copolymers.
-Olefin copolymer, polyvinyl chloride, polyvinyl bromide, polyvinyl fluoride, chlorinated polyethylene, chlorinated polypropylene, polyvinylidene chloride, polyvinylidene fluoride, brominated polyethylene, chlorinated rubber, vinyl chloride-vinyl acetate copolymer , Vinyl chloride-ethylene copolymer, vinyl chloride-propylene copolymer, vinyl chloride-styrene copolymer, vinyl chloride-isobutylene copolymer, vinyl chloride-vinylidene chloride copolymer, vinyl chloride-styrene-maleic anhydride Terpolymer, vinyl chloride-styrene-acrylonitrile copolymer, vinyl chloride-butadiene copolymer, vinyl chloride-isoprene copolymer, vinyl chloride-chlorinated propylene copolymer, vinyl chloride-vinylidene chloride-vinyl acetate Terpolymer, vinyl chloride-acrylic acid ester copolymer Body, vinyl chloride-maleic acid ester copolymer, vinyl chloride-methacrylic acid ester copolymer, vinyl chloride-acrylonitrile copolymer, halogen-containing resin such as internal plasticized polyvinyl chloride, petroleum resin, chroman resin, polystyrene, Copolymers of polyvinyl acetate, acrylic resin, polyacrylonitrile, styrene or α-methylstyrene with other monomers (for example, maleic anhydride, butadiene, aryllonitrile, etc.), AB
S resin (including so-called heat-resistant ABS resin in which a part of styrene component is replaced with α-methylstyrene and so-called super-heat-resistant ABS resin in which maleimides are copolymerized), acrylonitrile-butadiene-styrene copolymer, acrylic ester-butadiene -Styrene copolymer, methacrylate resin such as polymethyl methacrylate, polyvinyl alcohol, polyvinyl formal, polyvinyl butyral, polyethylene terephthalate, linear polyester such as polybutylene terephthalate, polyphenylene oxide, polyamide, polycarbonate, polyacetal, polyurethane, fibrin Resin, phenolic resin,
Urea resin, melamine resin, epoxy resin, unsaturated polyester resin silicone resin, isoprene rubber, butadiene rubber, acrylonitrile-butadiene copolymer rubber, styrene-butadiene copolymer rubber, ethylene-propylene copolymer rubber, ethylene-propylene-diene Examples thereof include rubbers such as copolymer rubber. Further, for example, a so-called thermoplastic elastomer such as a blend of polyolefin and rubber, or a blend of these resins such as various polymer alloys may be used. Further, a cross-linked polymer such as cross-linked polyethylene cross-linked by peroxide or radiation and a foamed polymer such as expanded polystyrene foamed by a foaming agent are also included.

The content of the organic phosphite composition of the present invention is preferably 0.1% based on 100 parts by weight of the synthetic resin.
001 to 10 parts by weight, more preferably 0.005 to 5
Parts by weight.

Further, the above-mentioned synthetic resin composition containing the organic phosphite composition of the present invention may further contain various additives usually used in synthetic resins. Examples of the additive include metal organic acid salts, basic organic acid salts and overbased organic acid salts, epoxy compounds, β-diketo compounds, polyhydric alcohols, halogen oxyacid salts, phenolic compounds, sulfur-based compounds, and Examples include phosphite-based antioxidants other than the present invention, ultraviolet absorbers, hindered amine-based light stabilizers, plasticizers, nucleating agents, and inorganic compounds.

The metal species of the organic acid salt, basic organic acid salt and overbased organic acid salt of the above metal include Li,
Na, K, Ca, Ba, Mg, Sr, Zn, Cd, S
n, Cs, Al, organic Sn, and the like. Examples of the organic acid that constitutes the above salt include carboxylic acid, organic phosphoric acids, and phenols. Examples of the carboxylic acid include acetic acid, propionic acid, and butyric acid. , Valeric acid, caproic acid, enanthic acid, caprylic acid, neodecanoic acid, 2-ethylhexylic acid, pelargonic acid, capric acid, undecanoic acid, lauric acid, tridecanoic acid, myristic acid, palmitic acid, isostearic acid, stearic acid, 12- Hydroxystearic acid, behenic acid, montanic acid, elaidic acid, oleic acid, linoleic acid, linolenic acid, thioglycolic acid, mercaptopropionic acid, octylmercaptopropionic acid, benzoic acid, monochlorobenzoic acid, p-
Tert-butylbenzoic acid, dimethylhydroxybenzoic acid,
One of 3,5-di-tert-butyl-4-hydroxybenzoic acid, toluic acid, dimethylbenzoic acid, ethylbenzoic acid, cuminic acid, n-propylbenzoic acid, acetoxybenzoic acid, salicylic acid, p-tert-octylsalicylic acid, etc. Carboxylic acid, oxalic acid, malonic acid, succinic acid, glutaric acid, adipic acid, pimelic acid, suberic acid, azelaic acid, sebacic acid, maleic acid, fumaric acid, citraconic acid, metaconic acid, itaconic acid, aconitic acid, thio Divalent carboxylic acids such as dipropionic acid, phthalic acid, isophthalic acid, terephthalic acid, oxyphthalic acid, chlorophthalic acid or their monoesters or monoamide compounds, butanetricarboxylic acid, butanetetracarboxylic acid, hemimellitic acid, trimellitic acid , Trivalent or tetravalent carboxylic acid such as melophanoic acid and pyromellitic acid Di- or triester compounds of Bonn acid, etc. Examples of the above organic phosphoric acids, mono- or dioctyl phosphate, mono- or Jidodeshirurin acid,
Mono- or di-octadecyl phosphoric acid, mono- or di- (nonylphenyl) phosphoric acid, phosphonic acid nonylphenyl ester, phosphonic acid stearyl ester and the like,
Examples of the phenols include phenol, cresol,
Xylenol, methylpropylphenol, methyl tert-octylphenol, ethylphenol, isopropylphenol, tert-butylphenol, n-butylphenol, diisobutylphenol, isoamylphenol, diamylphenol, isohexylphenol, octylphenol, isooctylphenol, 2-ethylhexylphenol, no. Examples thereof include trioctylphenol, nonylphenol, dinonylphenol, tertiary nonylphenol, decylphenol, dodecylphenol, octadecylphenol, cyclohexylphenol, phenylphenolphenol, cresol, ethylphenol, cyclohexylphenol, nonylphenol and dodecylphenol.

Examples of the epoxy compound include epoxidized soybean oil, epoxidized linseed oil, epoxidized fish oil, epoxidized tall oil fatty acid ester, epoxidized beef tallow oil, epoxidized castor oil, epoxidized safflower oil, epoxidized linseed oil. Fatty acid butyl, epoxy methyl stearate,
-Butyl, 2-ethylhexyl or -stearyl,
Tris (epoxypropyl) isocyanurate, 3-
(2-xenoxy) -1,2-epoxypropane, epoxidized polybutadiene, bisphenol-A diglycidyl ether, vinylcyclohexene diepoxide, dicyclopentadiene diepoxide, 3,4-epoxycyclohexyl-6-methylepoxycyclohexanecarboxylate, etc. Is mentioned.

Examples of the β-diketo compound include dehydroacetic acid, dibenzoylmethane, palmitoylbenzoylmethane, stearoylbenzoylmethane, and the like.
These metal salts are likewise useful.

Examples of the polyhydric alcohol include pentaerythritol, dipentaerythritol, sorbitol,
Mannitol, trimethylolpropane, ditrimethylolpropane, pentaerythritol or partial ester of stearic acid of dipentaerythritol, bis (dipentaetasthritol) adipate, glycerin, diglycerin, tris (2-hydroxyethyl) isocyanurate and the like can be mentioned. .

As the atoms or molecules constituting the halogen oxyacid salt, Li, K, Na, Mg, Sr, Ca, Ba, Zn, Cd, Sn,
Metal atoms such as Pb, ammonia, organic amine compounds or organic quaternary ammonium compounds,
As the halogen oxyacid salt, perchlorate, periodate, perbromate, chlorate, bromate, iodate, chlorite, hypochlorite, bromate And the like, which may be anhydrous or hydrated salt,
It may be dissolved in a solvent such as alcohol, or may be dissolved in alcohol and then dehydrated.

The halogen oxyacid salt is, for example,
JP-A-59-140261, JP-A-59-788
It may be obtained by treating hydrotalcites or silicate minerals with perchloric acid as described in JP-A-74 and JP-A-59-113636.

Examples of the above-mentioned phenolic antioxidant include 2,6-di-tert-butyl-p-cresol and 2,6
-Diphenyl-4-octadecyloxyphenol, stearyl (3,5-di-tert-butyl-4-hydroxyphenyl) -propionate, distearyl (3,5-di-tert-butyl-4-hydroxybenzyl) phosphonate, thiodiethylene glycol Bis [(3,5-di-tert-butyl-
4-hydroxyphenyl) propionate], 1,6-
Hexamethylene bis [(3,5-di-tert-butyl-4-hydroxyphenyl) propionate], 1,6-hexamethylene bis [(3,5-di-tert-butyl-4-hydroxyphenyl) propionamide], 4,4'-thiobis (6-tert-butyl-m-cresol), 2,2'-methylenebis (4-methyl-6-tert-butylphenol), 2,2'-methylenebis (4-ethyl-6-sec. Tributylphenol), bis [3,3-bis (4-hydroxy-3-tert-butylphenyl) butyric acid]
Glycol ester, 4,4'-butylidene bis (6-
Tert-butyl-m-cresol), 2,2'-ethylidene bis (4,6-di-tert-butylphenol), 2,2'-
Ethylidene bis (4-tert-butyl-6-tert-butylphenol), 1,1,3-tris (2-methyl-4-hydroxy-5-tert-butylphenyl) butane, bis [2-
Tert-butyl-4-methyl-6- (2-hydroxy-3-
Tert-Butyl-5-methylbenzyl) phenyl] terephthalate, 1,3,5-tris (2,6-dimethyl-3-)
Hydroxy-4-tert-butylbenzyl) isocyanurate, 1,3,5-tris (3,5-di-tert-butyl-4-)
Hidoxybenzyl) isocyanurate, 1,3,5-
Tris (3,5-di-tert-butyl-4-hydroxybenzyl) -2,4,6-trimethylbenzene, 1,3,5-
Tris [(3,5-ditert-butyl-4-hydroxyphenyl) propionyloxyethyl] isocyanurate,
Tetrakis [methylene-3- (3,5-di-tert-butyl-
4-hydroxyphenyl) propionate] methane, 2
-Tert-butyl-4-methyl-6- (2-acryloyloxy-3-tert-butyl-5-methylbenzyl) phenol, 3,9-bis [1,1-dimethyl-2-{(3-tertiary Butyl-4-hydroxy-5-methylphenyl) propionyloxy} ethyl] -2,4,8,10-tetraoxaspiro [5.5] undecane, triethylene glycol bis [(3-tert-butyl-4-hydroxy) -5
Methylphenyl) propionate] and the like.

Examples of the sulfur-based antioxidant include
Examples thereof include dialkylthiodipropionates such as dilauryl thiodipropionate, dimyristyl and distearyl, and β-alkylmercaptopropionate esters of polyols such as pentaerythritol tetra (β-dodecylmercaptopropionate).

As the above phosphite type antioxidant,
For example, trisnonylphenyl phosphite, tris (2,4-ditert-butylphenyl) phosphite, tris [2-tert-butyl-4- (3-tert-butyl-4-hydroxy-5-methylphenylthio)] -5-methylphenyl] phosphite, tridecylphosphite, octyldiphenylphosphite, di (decyl) monophenylphosphite, monodecyldiphenylphosphite, mono (dinonylphenyl) bis (nonylphenyl) phosphite, di ( Tridecyl) pentaerythritol diphosphite, distearyl pentaerythritol diphosphite, di (nonylphenyl) pentaerythritol diphosphite, bis (2,4-ditert-butylphenyl) pentaerythritol diphosphite, bis (2,6) -Di-tert-butyl-4-me Ruphenyl) pentaerythritol diphosphite, tetra (tridecyl) isopropylidene diphenol diphosphite, tetra (tridecyl) isopropylidene diphenol diphosphite, tetra (C12-15 mixed alkyl) -4,4'-n-butylidene bis ( 2-tert-butyl-5-methylphenol) diphosphite, hexa (tridecyl) -1,1,3-tris (2-methyl-4-hydroxy-5-tert-butylphenyl) butanetriphosphite, tetrakis (2,4)
-Di-tert-butylphenyl) biphenylene diphosphonite and the like.

Examples of the ultraviolet absorber include 2,
4-dihydroxybenzophenone, 2-hydroxy-4
-Methoxybenzophenone, 2-hydroxy-4-octoxybenzophenone, 5,5'-methylenebis (2-
(Hydroxy-4-methoxybenzophenone) and the like 2-
Hydroxybenzophenones; 2- (2'-hydroxy-5'-methylphenyl) benzotriazole, 2-
(2'-Hydroxy-3 ', 5'-di-tert-butylphenyl) benzotriazole, 2- (2'-hydroxy-
3 ', 5'-di-tert-butylphenyl) -5-chlorobenzotriazole, 2- (2'-hydroxy-3'-tert-butyl-5'-methylphenyl) -5-chlorobenzotriazole, 2- ( 2'-hydroxy-5'-tertiary octylphenyl) benzotriazole, 2- (2'-hydroxy-3'.5'-dicumylphenyl) benzotriazole, 2,2'-methylenebis (4-tertiary octyl-
2- (2 'such as 6-benzotriazolyl) phenol
-Hydroxyphenyl) benzotriazoles; phenyl salicylate, resorcinol monobenzoate,
2,4-di-tert-butylphenyl-3 ', 5'-di-tert-butyl-4'-hydroxybenzoate, hexadecyl-
Benzoates such as 3,5-ditertiary butyl-4-hydroxybenzoate; Substituted oxanilides such as 2-ethyl-2'-ethoxyoxanilide and 2-ethoxy-4'-dodecyloxanilide; Ethyl-α -Cyano-β,
β-diphenyl acrylate, methyl-2-cyano-3
Examples include cyanoacrylates such as -methyl-3- (p-methoxyphenyl) acrylate.

Examples of the hindered amine light stabilizer include 2,2,6,6-tetramethyl-4-piperidyl stearate, 1,2,2,6,6-pentamethyl-4-piperidyl stearate, and 2 , 2,6,6-Tetramethyl-4-piperidyl benzoate, N- (2,
2,6,6-Tetramethyl-4-piperidyl) dodecyl succinimide, 1-[(3,5-ditert-butyl-4-
Hydroxyphenyl) propionyloxyethyl]-
2,2,6,6-tetramethyl-4-piperidyl-
(3,5-di-tert-butyl-4-hydroxyphenyl) propionate, bis (2,2,6,6-tetramethyl-
4-piperidyl) sebacate, bis (1, 2, 2, 6,
6-pentamethyl-4-piperidyl) sebacate, bis (1,2,2,6,6-pentamethyl-4-piperidyl) -2-butyl-2- (3,5-di-tert-butyl-4-
Hydroxybenzyl) malonate, N, N′-bis (2,2,6,6-tetramethyl-4-piperidyl) hexamethylenediamine, tetra (2,2,6,6-tetramethyl-4-piperidyl) butanetetra Carboxylate, tetra (1,2,2,6,6-pentamethyl-4
-Piperidyl) butanetetracarboxylate, bis (2,2,6,6-tetramethyl-4-piperidyl).
Di (tridecyl) butane tetracarboxylate, bis (1,2,2,6,6-pentamethyl-4-piperidyl) di (tridecyl) butane tetracarboxylate, 3,9-bis [1,1-dimethyl-2 -{Tris (2,2,6,6-tetramethyl-4-piperidyloxycarbonyloxy) butylcarbonyloxy} ethyl] -2,4,8,10-tetraoxaspiro [5.
5] Undecane, 3,9-bis [1,1-dimethyl-2
-{Tris (1,2,2,6,6-pentamethyl-4-
Piperidyloxycarbonyloxy) butylcarbonyloxy} ethyl] -2,4,8,10-tetraoxaspiro [5.5] undecane, 1,5,8,12-tetrakis [4,6-bis {N- (2 , 2,6,6-Tetramethyl-4-piperidyl) butylamino} -1,3,5-
Triazin-2-yl] -1,5,8,12-tetraazadodecane, 1- (2-hydroxyethyl) -2,2
6,6-Tetramethyl-4-piperidinol / dimethyl succinate condensate, 2-tertiary octylamino-4,6-dichloro-s-triazine / N, N′-bis (2,2,2
6,6-Tetramethyl-4-piperidyl) hexamethylenediamine condensate, N, N'-bis (2,2,6,6-
Examples thereof include tetramethyl-4-piperidyl) hexamethylenediamine / dibromoethane condensate.

Examples of the above-mentioned plasticizer include ester-based plasticizers such as phthalic acid ester-based plasticizers and adipic acid ester-based plasticizers, polyester-based plasticizers, phosphoric acid ester-based plasticizers,
Examples include chlorine-based plasticizers.

As the nucleating agent, aluminum-p-
Tertiary butyl benzoate, dibenzylidene sorbitol, bis (4-methylbenzylidene) sorbitol, bis (4-tertiary butylphenyl) phosphate sodium salt, 2,2'-methylenebis (4,6-ditertiary butylphenyl) phosphate sodium salt Salts, 2,2'-methylenebis (4,6-di-tert-butylphenyl) phosphate aluminum salt / lithium soap mixture and the like.

Examples of the above-mentioned inorganic compounds include metal oxides, metal hydroxides, metal silicate salts, zeolites, hydrotalcites and the like.

If necessary, the synthetic resin composition may further include an impact resistance improver, a cross-linking agent, a filler, a foaming agent, an antistatic agent, an antifogging agent, a plate-out prevention agent, a surface treatment agent,
A flame retardant, a fluorescent agent, a fungicide, a bactericide, a metal deactivator, a release agent, a pigment, a processing aid and the like can be added.

The above synthetic resin composition is calendered,
Sheets, films and various molded products can be processed by various processing methods such as extrusion processing, injection processing, inflation processing, vacuum molding processing, powder molding processing and paste processing.

The above synthetic resin composition is a dashboard,
It can be used for various applications such as vehicle interior / exterior agents such as crash pads and bumpers, electric wire coating materials, toys, wallpapers, hoses, water and sewer pipes, food packaging containers, medical devices, agricultural films, paints and the like.

[0052]

EXAMPLES The present invention will be described in more detail with reference to Examples and Comparative Examples. However, the present invention is not limited by the following examples.

Example 1 Organic phosphite compound (shown in [Table 1] below) was placed in a mortar.
100 g and 1 g of added compound (shown in [Table 1] below)
Was added and pulverized and mixed for 15 minutes to obtain an organic phosphite composition. This was tested for workability with the following formulation. Regarding the processing conditions, the mixture was mixed with a rocking mixer for 30 minutes and extruded at 280 ° C. for 30 minutes to prepare pellets. 1-time extrusion (MI1) and 5-time extrusion (M
Melt index (g / 1
0 minutes), and the rate of increase [(MI5-
MI1) / 4] was calculated. The results are shown below [Table 1]
Shown in.

[Compounding] Parts by weight Polypropylene resin (Profax6501-14) 100 Tetrakis [(4-hydroxy-3,5-ditertiarybutyl 0.05 phenyl) propionyloxymethyl] methane stearyl (4-hydroxy-3,5) -Di-tert-butyl 0.025 phenyl) propionate calcium stearate 0.05 DHT-4A (synthetic hydrotalcite manufactured by Kyowa Chemical Industry) 0.05 organic phosphite composition (shown in Table 1 below) 0.1

[0055]

[Table 1]

[0056]

[Chemical 16]

$: In order to avoid the influence of hydrolysis, the organic phosphite compound was used after being sealed and stored in a dry room at a low temperature immediately after production, and the additives were added immediately before the test. * 2: HMTA; hexamethylenetetramine * 3: TIPA; triisopropanolamine * 4: DIPA; diisopropanolamine * 5: DETA; diethanol / beef tallow alkylamine * 6: PECA; ethylene oxide 5 mol addition palm alkylamine (molar ratio 1/6) #: Compound No. 1 and TIPA were previously blended and directly blended with the resin without using the organic phosphite composition of the present invention.

Example 2 A workability test was conducted in the same manner as in Example 1 with the following formulation. The results are shown in [Table 2] below.

[Blending] Parts by Weight Polypropylene Resin (Profax6501-14) 100 Tetrakis [(4-hydroxy-3,5-ditertiarybutyl 0.05 phenyl) propionyloxymethoxy] methane DHT-4A 0.1 Organic Phosphite Composition (shown in [Table 2] below) 0.1

[0060]

[Table 2]

$: Same as in [Table 1] above. #: Same as the above [Table 1].

As is clear from Examples 1 and 2 above, a composition comprising an organic phosphite compound other than the general formula (I) containing the alkanolamines of the general formula (II) according to the present invention ( Comparative Examples 1-4, 2-4) or a composition comprising the cyclic organic phosphite compound of the general formula (I) according to the present invention and an amine other than the alkanolamines of the general formula (II) ( Comparative Examples 1-2 and 2-2
) Has almost no effect of improving the stability of the synthetic resin during processing.

On the other hand, the organic phosphite composition of the present invention comprising the cyclic organic phosphite compound of the general formula (I) and the alkanolamines of the general formula (II) (Example 1-1) 1 to 11 and 2-1 to 2-11) have the effect of significantly improving the stability of the synthetic resin during processing.

[0064]

The specific cyclic organic phosphite compound has the following effects.
The organic phosphite composition of the present invention containing a specific alkanolamine significantly improves the stability of synthetic resin during processing.

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Claims (2)

[Claims] 1. 100 parts by weight of a cyclic organic phosphite compound represented by the general formula (I) of the following [Chemical formula 1] is added to 0.1 part of the alkanolamines represented by the general formula (II) of the following [Chemical formula 2]. An organic phosphite composition containing 01 to 5 parts by weight. [Chemical 1] [Chemical 2] 2. A synthetic resin composition comprising a synthetic resin containing the organic phosphite composition according to claim 1 in a stabilizing effective amount.