JP3133501B2 - Chlorine-containing resin composition - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a stabilized chlorine-containing resin composition, and more particularly, to a stabilized chlorine-containing resin obtained by adding an organic phosphorus-containing metal salt and a metal oxide or hydroxide to a chlorine-containing resin in combination. The present invention relates to a hardened chlorine-containing resin composition.

[0002]

2. Description of the Related Art Hard chlorine-containing resin has a high heat deformation temperature, and is excellent in heat resistance and weather resistance, so that it is widely used for building materials such as window frames and pipes for water and sewage. Have been.

However, a hard chlorine-containing resin containing little plasticizer has a lower gelation rate, a higher melting temperature, and a lower fluidity than a soft resin composition containing a large amount of plasticizer. However, there is a drawback that thermal degradation is apt to occur during processing, and the thermal stability, light stability, mechanical properties, and the like of the resulting product are reduced.

In order to make up for these drawbacks, it has been attempted to increase the gelation rate and lower the melting temperature by adding an acrylic processing aid to a chlorine-containing resin or copolymerizing it directly with the resin. However, the effect is still insufficient. Conventionally, lead-based stabilizers, which are particularly excellent in heat resistance, have been widely used for hard vinyl chloride-based resin compositions. It was strongly desired to establish

As a stabilizer instead of a lead-based stabilizer, use of a hydrotalcite compound is expected.
JP-A-209943 and JP-A-60-199043 propose that a specific organotin compound and a hydrotalcite compound are added in combination, but not only have the drawbacks of poor processability and coloring properties. In particular, when a large amount is blended, foaming occurs at the time of extrusion at a high temperature and the workability is reduced, and foaming also occurs in a molded product, not only poor appearance but also adversely affects strength. There are drawbacks.

JP-A-49-125454 discloses a metal oxide, a hydroxide or an inorganic acid salt, an antioxidant,
It has been proposed to add a polyhydric alcohol, an epoxy compound or a reducing compound and other metal salts to a halogen-containing resin, and JP-A-50-72948 discloses that calcium hydroxide, an alkali metal or an alkaline earth metal can be used. It has been proposed to add an organic acid salt and an organic tin malate to a chlorine-containing resin, but they have not been practically satisfactory.

JP-A-53-39338 proposes to add a metal salt of an organic phosphoric acid in order to improve the processing stability of the resin, but it is still practically satisfactory. In addition, Japanese Patent Application Laid-Open No. 57-168932 proposes to add a lead salt of an organic carboxylic acid and a metal salt of an organic phosphate to a chlorine-containing resin, but this proposal uses a lead-based stabilizer. It was contrary to the request not to.

Accordingly, it is an object of the present invention to provide a hard chlorine-containing resin composition which is less susceptible to thermal deterioration during processing and which is excellent in product stability, mechanical properties and the like.

[0009]

As a result of various studies, the present inventors have found that by adding a specific organic phosphorus-containing metal salt and a metal oxide or hydroxide to a chlorine-containing resin in combination. The inventors have found that the above objects can be achieved and completed the present invention.

[0010] That is, the present invention relates to a chlorine-containing resin 100
The parts by weight, (a) the following general formula [2] of the general formula (chemical formula 1] and the same) (I) or at least one 0.01-5 parts by weight of an organic phosphorous metal salt represented by the general formula (II) And (b) Magnesi
An object of the present invention is to provide a stabilized hard chlorine-containing resin composition comprising 0.01 to 10 parts by weight of at least one of oxides and / or hydroxides of uranium and / or calcium .

[0011]

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Hereinafter, the chlorine-containing resin composition of the present invention will be described in detail.

In the above general formulas (I) and (II), R ₁ or R ₂
Examples of the alkyl group represented by octyl, nonyl, decyl, undecyl, dodecyl, tridecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl, octadecyl, nonadecyl, eicosyl, henycosyl, docosyl, tetracosyl, pentacosyl, hexacosyl,
Heptakosyl, octakosyl, nonakosyl, triacontyl and the like can be mentioned.

Accordingly, as the organic phosphorus-containing metal salt of the component (a) used in the chlorine-containing resin composition of the present invention, for example, the following compounds (compounds 3 to 16) (compound No.
1 to Compound No. 14).

[0015]

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[0016]

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[0017]

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[0018]

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[0019]

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[0020]

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[0021]

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[0022]

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[0023]

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[0024]

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[0025]

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[0026]

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[0027]

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[0028]

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The amount of the organic phosphorus-containing metal salt is preferably 0.01 to 5 parts by weight based on 100 parts by weight of the chlorine-containing resin.
Parts by weight, more preferably 0.05 to 3 parts by weight.

[0030]

Used in the chlorine-containing resin composition of the present invention
(B) magnesium and / or calcium components
The oxides and / or hydroxides may be those which are generally commercially available, which can be used regardless of the particle size, particle size, specific surface area, etc., and which have been further treated with fatty acids, plasticizers, process oils and the like. Is also good.

The magnesium and / or component (b)
The amount of the calcium oxide and / or hydroxide is preferably 0.01 to 10 parts by weight, more preferably 0.05 to 5 parts by weight, based on 100 parts by weight of the chlorine-containing resin.

The organic phosphorus-containing metal salt of the above component (A) and the magnesium and / or calcium of the above component (B) used as a stabilizer in the chlorine-containing resin composition of the present invention.
The oxides and hydroxides of calcium can be separately compounded in the chlorine-containing resin, but they can be mixed in advance and then mixed with the chlorine-containing resin. In this case, if necessary, It can be used as a so-called composite stabilizer containing other stabilizer components and the like.

The chlorine-containing resin in the chlorine-containing resin composition of the present invention includes the following. For example, polyvinyl chloride, post-chlorinated polyvinyl chloride, polyvinylidene chloride, chlorinated polyethylene, chlorinated polypropylene, chlorinated rubber, vinyl chloride-vinyl acetate copolymer, vinyl chloride-ethylene copolymer, vinyl chloride-propylene copolymer Polymer, vinyl chloride-styrene copolymer, vinyl chloride-isobutylene copolymer, vinyl chloride-vinylidene chloride copolymer, vinyl chloride-styrene-maleic anhydride terpolymer, vinyl chloride-alkyl, cycloalkyl or Arylmaleimide copolymer, 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 Chlorine-containing resins such as ester copolymers, vinyl chloride-maleic acid ester copolymers, vinyl chloride-methacrylic acid ester copolymers, vinyl chloride-acrylonitrile copolymers, vinyl chloride-urethane copolymers and the above chlorine-containing resins And polyethylene, polypropylene, polybutene, α-olefin polymers such as poly-3-methylbutene or ethylene-vinyl acetate copolymer, polyolefins such as ethylene-propylene copolymer and copolymers thereof, polystyrene, acrylic resin, styrene And other monomers (eg anhydrous maleic Acid, butadiene, copolymers of acrylonitrile), acrylonitrile - butadiene - styrene copolymer, a methacrylic acid ester - butadiene - styrene copolymer may include blends Hinto of polyurethane.

The chlorine-containing resin composition (hard chlorine-containing resin composition) of the present invention does not contain any plasticizer or contains only 10 parts by weight or less of the plasticizer per 100 parts by weight of the chlorine-containing resin. It is.

Further, a hydrotalcite compound can be used in combination with the chlorine-containing resin composition of the present invention. Examples of the hydrotalcite compound include magnesium and aluminum represented by the following general formula (III), or a double salt compound having a layered structure composed of zinc, magnesium, and aluminum. There may be.

[0037]

Embedded image Mg _X1 Zn _X2 Al ₂ (OH) _{2 (X1 + X2) + 4} · CO ₃ · mH ₂ O (III) (where x1 and x2 satisfy the conditions represented by the following formulas, respectively) And m represents a real number: 0 ≦ x2 / x1 <10,
2 ≦ x1 + x2 <20)

The hydrotalcite compound may be a natural product or a synthetic product. As the synthesis method, JP-B-46-2280, JP-B-50-3
Known methods described in JP-A-0039, JP-B-51-29129, JP-A-61-174270 and the like can be exemplified. Further, in the present invention, it can be used without being limited by its crystal structure, crystal particle diameter and the like.

The surface of the above hydrotalcite compound may be made of a higher fatty acid such as stearic acid, a higher fatty acid metal salt such as an alkali metal oleate, an organic metal sulfonate such as an alkali metal dodecylbenzenesulfonate, or a higher fatty acid amide. And those coated with higher fatty acid esters or waxes.

The amount of the hydrotalcite compound to be added is preferably 0.01 to 10 parts by weight, more preferably 0.05 to 5 parts by weight, based on 100 parts by weight of the chlorine-containing resin.

The above hydrotalcite compound imparts relatively good thermal stability to the chlorine-containing resin, but has the disadvantages of poor colorability and foaming during high-temperature processing as described above. Although the use has been restricted, such a drawback can be solved by using the above components (a) and (b) together.

The chlorine-containing resin composition of the present invention may contain Li,
The stabilizing effect is remarkably improved by using an organic acid salt of a metal such as K, Na, Mg, Sr, Ca, Ba, Zn, Cd, Sn, or Pb, an organic tin compound, or the like in combination.

Carboxylic acids, phenols and the like are useful as organic acid residues of the above-mentioned organic acid salts of metals.

As the carboxylic acid, for example, acetic acid,
Propionic acid, butyric acid, valeric acid, caproic acid, enanthic acid, caprylic acid, neodecanoic acid, 2-ethylhexyl acid, pelargonic acid, capric acid, undecanoic acid, lauric acid, tridecanoic acid, myristic acid, palmitic acid, isostearic acid, stearin 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, 3,5-ditert-butyl-4-hydroxybenzoic acid, toluic acid, dimethylbenzoic acid Monohydric carboxylic acids such as ethylbenzoic acid, cumic acid, n-propylbenzoic acid, acetoxybenzoic acid, salicylic acid, p-tert-octylsalicylic 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, thiodipropionic acid, phthalic acid,
Divalent carboxylic acids such as isophthalic acid, terephthalic acid, oxyphthalic acid, chlorophthalic acid or monoesters or monoamide compounds thereof, butanetricarboxylic acid, butanetetracarboxylic acid, hemi-mellitic acid, trimellitic acid, melophanic acid, pyromellitic acid And di- or triester compounds of trivalent or tetravalent carboxylic acids.

The phenols include, for example, phenol, cresol, xylenol, methylpropylphenol, methyl tert-octylphenol, ethylphenol, isopropylphenol, tert-butylphenol, n-butylphenol, diisobutylphenol, isoamylphenol, diamylphenol Phenol,
Isohexylphenol, octylphenol, isooctylphenol, 2-ethylhexylphenol, tertiary octylphenol, nonylphenol, dinonylphenol, tertiary nonylphenol, decylphenol,
Dodecylphenol, octadecylphenol, cyclohexylphenol, phenylphenol and the like can be mentioned.

The amount of the metal organic acid salt to be added is preferably 0.01 to 10 parts by weight, particularly preferably 0.1 to 5 parts by weight, based on 100 parts by weight of the chlorine-containing resin.

Examples of the organotin compound (organotin-based stabilizer) include mono- or dialkyltin compounds such as mono- or dimethyltin-, mono- or dibutyltin- or mono- or dioctyltin compounds. Specifically, sulfides, oxides or sulfide-oxides of mono- or dialkyltins; carboxylates such as octoate, laurate, malate-laurate, stearate, isostearate, crotonate, oleate and basic laurate of dialkyltin; dialkyltin Cyclic malate or maleate polymer; dialkyltin butylmalate, octylmalate, malate-octylmalate, stearylmalate, oleylmalate, basic butylmalate, etc .; ester maleate; mono- or dialkyltin octylmethyl Alkyl mercaptides such as captides, lauryl mercaptides, stearyl mercaptides; mono- or dialkyltin isooctylthioglycolate, 2-ethylhexylthioglycolate, tetradecylthioglycolate, isooctylthioglycolate-sulfide, etc. Thioglycolic acid ester salts of mono- or dialkyltins such as isooctylthiopropionate, 2-ethylhexylthiopropionate and tetradecylthiopropionate; 2-mercaptoethyl mono- or dialkyltins Mention may be made of mercaptoethanol ester salts such as oleate salts. Among these organotin compounds, particularly preferred are malate-based, ester-malate-based and thiocarboxylic acid ester-based stabilizers.

The amount of the organotin compound to be added is preferably 0.01 to 10 parts by weight, particularly preferably 0.1 to 5 parts by weight, per 100 parts by weight of the chlorine-containing resin.

An excellent synergistic effect is exhibited by using an organic phosphite compound and / or an epoxy compound in combination with the chlorine-containing resin composition of the present invention.

Examples of the organic phosphite compound include triphenyl phosphite, tris (2,4-ditert-butylphenyl) phosphite, tris (nonylphenyl) phosphite, tris (dinonylphenyl) phosphite, Tris (mono and di mixed nonylphenyl) phosphite, diphenyl acid phosphite, 2,
2'-methylenebis (4,6-di-tert-butylphenyl)
Octyl phosphite, diphenyl decyl phosphite, phenyl diisodecyl phosphite, tributyl phosphite, tri (2-ethylhexyl) phosphite, tridecyl phosphite, trilauryl phosphite, dibutyl acid phosphite, dilauryl acid phosphite, trilauryl Trithiophosphite,
Bis (neopentyl glycol) / 1,4-cyclohexanedimethyldiphosphite, bis (2,4-ditertbutylphenyl) pentaerythritol diphosphite,
Distearyl pentaerythritol diphosphite, phenyl-4,4'-isopropylidene diphenol pentaerythritol diphosphite, tetra (C ₁₂ -C
₁₅ mixed alkyl) -4,4'-isopropylidenediphenyldiphosphite, hydrogenated-4,4'-isopropylidenediphenol polyphosphite, bis (octylphenyl) bis [4,4'-n-butylidenebis ( 2-
Tert-butyl-5-methylphenol)] • 1,6-hexanediol • diphosphite, tetratridecyl •
4,4'-butylidenebis (2-tert-butyl-5-methylphenol) diphosphite, hexa (tridecyl)
-1,1,3-tris (2-methyl-5-tert-butyl-
4-hydroxyphenyl) butane triphosphite and the like.

The amount of the organic phosphite compound added is
It is preferably 0.01 to 5 parts by weight, particularly preferably 0.1 to 3 parts by weight, based on 100 parts by weight of the chlorine-containing resin.

Examples of the epoxy compound include epoxidized soybean oil, epoxidized linseed oil, epoxidized fish oil, epoxidized tall oil fatty acid ester, epoxidized 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 and the like.

The amount of the epoxy compound to be added is preferably 0.01 to 5 parts by weight, particularly preferably 0.1 to 3 parts by weight, based on 100 parts by weight of the chlorine-containing resin.

If a light stabilizer is added to the chlorine-containing resin composition of the present invention, the light stability can be improved, and these can be appropriately selected and used according to the purpose of use. These include benzophenones, benzotriazoles, salicylates, substituted acrylonitriles, hindered amines, various metal salts or metal chelates, especially nickel or chromium salts or chelates.

The coloring property can be improved by adding other organic stabilizing aids, metal perchlorates and the like to the chlorine-containing resin composition of the present invention.

The other organic stabilizing aids include phenolic antioxidants, polyhydric alcohols, β-diketone compounds, and organic nitrogen-containing compounds.

Examples of the phenolic antioxidants include 2,6-di-tert-butyl-p-cresol and 2,6-di-tert-butyl-p-cresol.
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-ditert-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-tert-butyl) Tributylphenol), bis [3,3-bis (4-hydroxy-3-tert-butylphenyl) butylic acid]
Glycol ester, 4,4'-butylidenebis (6-
Tert-butyl-m-cresol), 2,2′-ethylidenebis (4,6-di-tert-butylphenol), 2,2′-
Ethylidenebis (4-sec-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-
Hydroxybenzyl) isocyanurate, 1,3,5-
Tris (3,5-di-tert-butyl-4-hydroxybenzyl) -2,4,6-trimethylbenzene, 1,3,5-
Tris [(3,5-di-tert-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-−２ (3-tert-butyl Butyl-4-hydroxy-5-methylphenyl) propionyloxydiethyl] -2,4,8,10-tetraoxaspiro [5.5] undecane, triethylene glycol bis [(3-tert-butyl-4-hydroxy) −5-
Methylphenyl) propionate].

The polyhydric alcohols include, for example,
Pentaerythritol, dipentaerythritol, dipentaerythritol adipate, mannitol, sorbitol, trishydroxyether isocyanurate,
Examples thereof include trimethylolpropane, ditrimethylolpropane, and ester compounds or partial ester compounds thereof.

Examples of the β-diketone compound include β-diketone compounds such as dibenzoylmethane, benzoylacetone, stearoylbenzoylmethane, and dehydroacetic acid, and metal salts thereof.

As the organic nitrogen-containing compound, for example, 2,6-dimethyl-1,4-dihydropyridine-
3,5-dicarboxylic acid didodecyl ester, 2-phenylindole, melamine, 1,4-butanediol bis (β-aminocrotonate), thiodiethanolbis (β-aminocrotonate) and the like.

The metal component of the above metal perchlorate is as follows:
Examples include lithium, sodium, potassium, magnesium, calcium, strontium, barium, zinc, cadmium, lead, aluminum, and the like.Furthermore, hydrotalcite that has been treated with perchloric acid may be used. May be anhydrous or hydrated. It may be dissolved in a solvent such as alcohol or a dehydrated product thereof.

Further, in order to obtain a non-toxic or low-toxic chlorine-containing resin composition, if a non-toxic or low-toxic one of the above-mentioned commonly used organic acid metal salts is selected and used, it is non-toxic or low-toxic and heat-resistant. A stable chlorine-containing resin composition is obtained.

In addition, if necessary, the chlorine-containing resin composition of the present invention may contain, for example, a crosslinking agent, a filler, a modifier, a pigment, a foaming agent, an antistatic agent, an anti-fogging agent, a plate-out preventing agent, A surface treatment agent, a lubricant, a flame retardant, a fluorescent agent, a fungicide, a bactericide, a photodegradation agent, a non-metal stabilizer, a processing aid, a release agent and the like can be included.

[0064]

EXAMPLES Next, examples are given together with comparative examples to specifically show the stabilizing effect of the chlorine-containing resin composition of the present invention. However, the present invention is not limited by the following examples.

Example 1 Using the following mixture, the temperature was adjusted to 180 ° C. with a Labo Plastomill (torque rheometer manufactured by Toyo Seiki Seisaku-sho, Ltd.).
The decomposition time of each composition was measured at a temperature of 50 ° C., a rotation speed of 50 rpm, and an input amount of 60 g / 60 cc.

Further, a roll-up sheet of 1 mm was prepared at 180 ° C.
A pressed sheet was prepared at 30 ° C. for 30 minutes, and the yellowness was measured with a Hunter colorimeter to determine the color difference.

The results are shown in Table 1 below.

[Combination] Parts by weight Vinyl chloride resin (degree of polymerization 800) 100 Titanium dioxide 0.3 Polyethylene wax 0.3 Monoglyceride stearate 0.2 Calcium stearate 0.6 Zinc stearate 0.85 Alkamizer 4 ^{* 1} 0.7 calcium hydroxide 0.7 test compound (Table 1 refer) 0.3 * 1 Kyowa chemical Co., Ltd. zinc-modified synthetic hydrotalcite composition formula _{Mg 3 ZnAl 2 (OH) 12} CO 3 · 3H ₂ O

[0069]

[Table 1]

Example 2 The decomposition time of each composition was measured in the same manner as in Example 1 using the following compound.

The results are shown in the following [Table 2].

[Combination] Parts by weight Vinyl chloride resin (degree of polymerization 1050) 100 Calcium carbonate 3 Titanium dioxide 6 Acrylic modifier 5 Acrylic processing aid 0.5 Polyethylene wax 0.6 Monoglyceride stearate 0.4 Calcium Stearate 0.9 Zinc stearate 1.2 Calcium hydroxide 1.0 Test compound (see [Table 2]) 0.4

[0073]

[Table 2]

Example 3 The decomposition time of each composition was measured in the same manner as in Example 1 except that the following mixture was used.

In order to confirm the foaming phenomenon, 180
A roll-up sheet of 1 mm was prepared at 1 ° C., placed in a gear oven at 210 ° C. for 10 minutes, and its foamability was visually evaluated. The evaluation criterion is 5 levels, and 1 represents a state without foaming at all, and the larger the numerical value, the greater the foaming property. Further, the color difference was determined in the same manner as in Example 1.

The results are shown in Table 3 below.

[Combination] Parts by weight Vinyl chloride resin (degree of polymerization 800) 100 Titanium dioxide 0.3 Polyethylene wax 0.3 Monoglyceride stearate 0.2 Calcium stearate 0.6 Zinc stearate 0.85 DHT-4- A ^{* 2} 0.7 Compound No. 4 0.3 Test compound (see [Table 3]) 0.7 * 2 Synthetic hydrotalcite manufactured by Kyowa Chemical Co., Ltd. Composition formula Mg _4.5 Al ₂ (OH) ₁₃ CO ₃ · 3.5H ₂ O

[0078]

[Table 3]

As is apparent from the results shown in Tables 1 to 3, the processing stability of the hard chlorine-containing resin is determined by the organic phosphorus-containing metal salt of component (A) or (B) of the present invention. Even if only one of the component metal oxide and / or hydroxide is added, no significant improvement is observed.

On the other hand, by adding together the organic phosphorus-containing metal salt of the component (A) and the metal oxide and / or hydroxide of the component (B) of the present invention to the hard chlorine-containing resin, The processing stability is unpredictably improved when each is used alone, and furthermore, when used in combination with a hydrotalcite compound, it has an effect of suppressing coloring and foaming.

[0081]

Industrial Applicability The chlorine-containing resin composition of the present invention hardly undergoes thermal deterioration during processing and has excellent product stability and mechanical properties.

──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Takahiro Aihara 5-2-13-1 Shirahata, Urawa-shi, Saitama Asahi Denka Kogyo Co., Ltd. (56) References JP-A-3-275750 (JP, A) JP-A 49-125454 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) C08L 27/04 C08K 3/22 C08K 5/521 WPI (DIALOG)

Claims (1)

(57) [Claims] 1. An amount of at least one organic phosphorus-containing metal salt represented by the following general formula (I) or (II): 0.01 to 5 parts by weight per 100 parts by weight of a chlorine-containing resin. Part and (b) at least one oxide and / or hydroxide of magnesium and / or calcium 0.01 to 1
A stabilized hard chlorine-containing resin composition to which 0 parts by weight are added. Embedded image