JPH05320450A - Stabilized chlorine-containing resin composition - Google Patents

Abstract

PURPOSE:To obtain a compsn. excellent in thermal stability, resistance to chalking, and retention of surface gloss by compounding a chlorine-contg. resin with a specified amt. of a specific organocopper compd. CONSTITUTION:This compsn. is prepd. by compounding 100 pts.wt. chlorine- contg. resin (e.g. polyvinyl chloride) with 0.001-5 pts.wt. at least one organocopper compd. selected from the group consisting of copper compds. of formulas I and II (wherein R1 to R6 are each H, halogen, hydroxyl, 1-18C alkyl, or alkoxy)(e.g. a compd. of formula III or IV). The addition of a hydrotalcite compd. to the compsn. further improves the resistance to heat and weathering. A metal-based stabilizer (e.g. lead stearate) may also be added to the compsn.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stabilized chlorine-containing resin composition.
The present invention relates to a chlorine-containing resin composition in which chalking is prevented without reducing thermal stability by adding a copper salt of a specific benzotriazole compound or benzophenone compound.

[0002]

2. Description of the Related Art Chlorine-containing resins are used in various applications from soft applications to hard applications by freely blending plasticizers.
In particular, chlorine-containing resins are used for outdoor applications such as pipes and corrugated sheets because of their high heat distortion temperature, thermal stability, and light resistance. However, there is a drawback that a whitening phenomenon called chalking occurs due to blowing of a filler or the like under the influence of heat and light derived from sunlight during use, oxygen in rainwater and air.

In order to prevent this chalking, a method of using an inorganic copper compound such as cuprous chloride, cupric chloride, copper sulfate, basic copper carbonate and copper carbonate (JP-A-59-1).
No. 02942) or a method of using one or two selected from copper-containing hydrotalcite compounds and glycine copper (see Japanese Patent Laid-Open No. 2-187442), and the like. Although there was some improvement, it had the drawback of poor thermal stability and weather resistance.

Further, chromium which is a benzophenone compound,
It has been proposed to use a metal salt of cobalt, nickel or the like as a stabilizer for a polymer material (see JP-A-50-35238 and JP-A-50-100135), but these compounds are chlorine. No significant effect is seen in preventing the chalking of the contained resin.

[0005]

Means for Solving the Problems As a result of intensive studies to improve the above-mentioned drawbacks, the present inventors have found that among the metal salts of a specific benzotriazole compound or benzophenone compound, chlorine-containing resins are particularly preferable. It has been found that a chlorine-containing resin composition in which choking is prevented can be obtained by adding a copper salt without deteriorating thermal stability, and has reached the present invention.

That is, according to the present invention, 100 parts by weight of a chlorine-containing resin is added to the following general formula (I) of the following [Chemical formula 3] (the same as [Chemical formula 1]).
And / or chlorine-containing resin obtained by adding 0.001 to 5 parts by weight of at least one selected from the copper compounds represented by the general formula (II) of the following [Chemical formula 4] (the same as [Chemical formula 2]) A composition is provided.

[0007]

[Chemical 3]

[0008]

[Chemical 4]

The chlorine-containing resin composition of the present invention will be described in detail below. The above general formula (I) and the above general formula (I) representing the copper compound added to the chlorine-containing resin composition of the present invention.
In I), examples of the halogen atom represented by R ₁ , R ₂ , R ₃ , R ₄ , R ₅ and R ₆ include fluorine, chlorine, bromine and iodine, and examples of the alkyl group include methyl and ethyl. ,
Propyl, isopropyl, butyl, isobutyl, secondary butyl, tertiary butyl, amyl, tertiary amyl, hexyl, heptyl, octyl, 2-ethylhexyl, tertiary octyl, nonyl, decyl, undecyl, dodecyl, tridecyl, tetradecyl, pentadecyl, Groups such as hexadecyl, heptadecyl, stearyl, benzyl, phenylethyl, cumyl, methoxycarbonylethyl, etc.,
As the alkoxy group, methoxy, ethoxy, propoxy, isopropoxy, butoxy, isobutoxy,
Secondary butoxy, tertiary butoxy, amyloxy, tertiary amyloxy, hexyloxy, heptyloxy, octyloxy, 2-ethylhexyloxy, tertiary octyloxy, nonyloxy, decyloxy, undecyloxy,
Examples include groups such as dodecyloxy, tridecyloxy, tetradecyloxy, pentadecyloxy, hexadecyloxy, heptadecyloxy and stearoxy.

The above copper compounds are obtained by using sodium hydroxide and a copper compound such as copper chloride in a benzotriazole compound or a benzophenone compound, respectively.
It can be easily produced by a metathesis method in a solvent such as water, and in this case, it is possible to heat it if necessary, and the production method is not limited to this.

As the above-mentioned benzotriazole compound,
2- (2'-hydroxy-5'-methylphenyl) benzotriazole, 2- (2'-hydroxy-5'-tertiary octylphenyl) 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-3 ', 5'-dicumylphenyl) benzotriazole, 2- (2'-hydroxy-3'-tert-butyl-5) '-Octoxycarbonylethylphenyl) benzotriazole and the like, and examples of the benzophenone compound include 2,4-dihydroxybenzophenone, 2-hydroxy-4-methoxybenzophenone, 2-hydroxy-4-octoxybenzophenone and 2 -Hydroxy-4-decyloxybenzophenone, 2-hydroxy-4-dodecyloxybenzophenone, 2-hydroxy-4-stearyloxybenzophenone, 2,2 ', 4,4'-tetrahydroxybenzophenone, 2,2'-dihydroxy- 4,4'-
Dimethoxybenzophenone, 2-hydroxy-4-methoxy-4'-chlorobenzophenone, 2-hydroxy-
4-methoxy-3′-methylbenzophenone and the like can be mentioned.

Therefore, the copper compound represented by the above general formula (I) or (II) is, for example,
Examples thereof include compounds represented by [Chemical Formula 9] (Compound No. 1 to Compound No. 5).

[0013]

[Chemical 5]

[0014]

[Chemical 6]

[0015]

[Chemical 7]

[0016]

[Chemical 8]

[0017]

[Chemical 9]

The amount of the above copper compound added is the chlorine-containing resin 1
It is 0.001 to 5 parts by weight, preferably 0.01 to 3 parts by weight with respect to 00 parts by weight.

Examples of the chlorine-containing resin in the present invention include polyvinyl chloride, chlorinated polyvinyl chloride, polyvinylidene chloride, chlorinated polyethylene, vinyl chloride-vinyl acetate copolymers, vinyl chloride-ethylene copolymers, and chlorides. Vinyl-propylene copolymer, vinyl chloride-styrene copolymer, vinyl chloride-isobutylene copolymer, vinyl chloride-vinylidene chloride copolymer, vinyl chloride-styrene-
Maleic anhydride terpolymer, vinyl chloride, styrene-
Acrylonitol copolymer, vinyl chloride-butadiene copolymer, vinyl chloride-isoprene copolymer, vinyl chloride-chlorinated propylene copolymer, vinyl chloride-vinylidene chloride-vinyl acetate terpolymer, vinyl chloride- Maleic acid ester copolymer, vinyl chloride-methacrylic acid ester copolymer, vinyl chloride-acrylonitrile copolymer,
Examples thereof include chlorine-containing resins such as vinyl chloride-various vinyl ether copolymers, blends of these with each other or with other chlorine-free synthetic resins, block copolymers, graft copolymers and the like.

To the chlorine-containing resin composition of the present invention, a commonly used metal-based stabilizer can be added. For example, a lead-based stabilizer, a calcium-based stabilizer, a zinc-based stabilizer,
Examples thereof include magnesium-based stabilizers, barium-based stabilizers, organic tin-based stabilizers, and composite stabilizers thereof.

Examples of the lead-based stabilizer include lead white, basic lead silicate, basic lead sulfate, dibasic lead sulfate, tribasic lead sulfate, basic lead sulfite, and dibasic lead phosphite. ,
Silica gel co-precipitated lead silicate, dibasic lead phthalate, tribasic lead maleate, lead salicylate, lead stearate, basic lead stearate, dibasic lead stearate, lead laurate, lead octylate, 12- Lead hydroxystearate,
Examples include lead behenate and lead naphthenate.

Examples of the above zinc-based, calcium-based, magnesium-based and barium-based stabilizers are oxides, hydroxides, carbonates, basic carbonates, (meth) borates, (meth) silicic acids thereof. Examples thereof include salts, (sub-) phosphates, basic phosphates, aluminates, titanates, stannates, rhodanates and other inorganic compounds, and metal soaps with organic carboxylic acids. Examples of such organic carboxylic acids include acetic acid, lactic acid, stearyl lactic acid, caproic acid, pelargonic acid, lauric acid, 2-ethylhexylic acid, myristic acid, palmitic acid, undecylenic acid, ricinoleic acid, linoleic acid, linoleic acid, neodecanoic acid. ,oleic acid,
Stearic acid, isodecanoic acid, isostearic acid, 12
-Hydroxystearic acid, 12-ketostearic acid,
Chloro-stearic acid, phenyl-stearic acid, arachidic acid, behenic acid, erucic acid, brassic acid and similar acids as well as naturally occurring substances such as tallow fatty acid, coconut oil fatty acid, tung oil fatty acid, soybean oil fatty acid and cottonseed oil fatty acid Mixtures of the above acids, benzoic acid, chlorobenzoic acid, toluic acid, salicylic acid, p-tertiary butylbenzoic acid, 5-tertiary octylsalicylic acid, naphthenic acid, xylic acid, ethylbenzoic acid, isopropylbenzoic acid, ditertiary benzoic acid. Butylbenzoic acid, bromobenzoic acid, maleic acid, adipic acid, phthalic acid, monobutyl maleate, monodecyl phthalate, cyclohexanedicarboxylic acid and the like can be mentioned.

Examples of the above-mentioned organotin stabilizers include, for example, methylstannoic acid, butylstannoic acid,
Octyl stanoic acid, dimethyl tin oxide, dibutyl tin oxide, dioctyl tin oxide, dimethyl tin sulfide, dibutyl tin sulfide, dioctyl tin sulfide, monobutyl tin oxide sulfide, methyl thiostannoic acid, butyl thiostannoic acid, octyl Thiostanoic acid, dibutyltin dilaurate, dibutyltin distearate, dioctyltin dioleate, dibutyltin basic laurate, dibutyltin dicrotonate, dibutyltin bis (butoxydiethylene glycol malate), dibutyltin methyl octyl neopentyl glycol malate, Dibutyltin isooctyl-1,4-butanediol malate, dibutyltin dimethacrylate, dibutyltin dicinnamate, dioctyltin bis (oleylmer ), Dibutyltin bis (stearyl malate), dibutyltin itaconate, dioctyltin malate, dimethyltin dicrotonate, dioctyltin bis (butylmalate), dibutyltin dimethoxide, dibutyltin dilauroxide, dioctyltin ethyleneglycoxide, pentaerythritol dibutyl. Tin oxide condensate, dibutyltin bis (lauryl mercaptide), dimethyltin bis (stearyl mercaptide), monobutyltin tris (lauryl mercaptide), dibutyltin-β
-Mercaptopropionate, dioctyltin-β-mercaptopropionate, dibutyltin mercaptoacetate, monobutyltin tris (isooctylmercaptoacetate), monooctyltin tris (2-ethylhexylmercaptoacetate), dibutyltin bis (isooctylmercapto) Acetate), dioctyl tin bis (isooctyl mercapto acetate), dioctyl tin bis (2
-Ethylhexyl mercapto acetate), dimethyl tin bis (isooctyl mercapto acetate), dimethyl tin bis (isooctyl mercapto propionate), monobutyl tin tris (isooctyl mercapto propionate), bis [monobutyl di (isooctoxy carbonyl methylene thio) ) Tin] sulfide, bis [dibutylmono (isooctoxycarbonylmethylenethio) tin] sulfide, monobutylmonochlorotin bis (isooctylmercaptopropionate), monobutylmonochlorotin bis (isooctylmercaptoacetate), monobutylmonochlorotin Bis (lauryl mercaptide), butyltin bis (ethylcellosolbumarate), bis (dioctyltin butylmalate) malate, bis (methyltin diisooctyltilg) Cholate) disulfide, bis (methyl / dimethyltin mono / diisooctylthioglycolate) disulfide, bis (methyltin diisooctylthioglycolate) trisulfide, bis (butyltin diisooctylthioglycolate) trisulfide , 2-butoxycarbonylethyltin tris (butylthioglycolate) and the like.

The amount of the above metal-based stabilizer used 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.

By adding a hydrotalcite compound to the chlorine-containing resin composition of the present invention, its heat resistance and weather resistance are further improved.

As the above-mentioned hydrotalcite compound,
Magnesium represented by the following general formula (III)
A double salt compound consisting of zinc and aluminum can be mentioned.

[0027]

_{Embedded image} Mg _y1 Zn _y2 Al _x · (OH) ₂ · (CO ₃ ) _{x / 2} · mH ₂ O (III) (where x, y ₁ , and y ₂ are conditions represented by the following equations, respectively) And m is 0 or any positive number, 0 <x ≦ 0.5, y ₁ + y ₂ = 1−x, 0.1 ≦ y ₁ <
1, 0 ≦ y ₂ <0.8)

The hydrotalcite compound may be a natural product or a synthetic product, or may be a product obtained by heating and dehydrating the water of crystallization thereof. As the synthesis method, known methods described in JP-B-46-2280, JP-B-50-30039, JP-B-51-29129 and the like can be exemplified. Further, in the present invention, it can be used without being limited by its crystal structure, crystal particle size and the like.

On the surface of the hydrotalcite compound, higher fatty acid such as stearic acid, higher fatty acid metal salt such as alkali metal oleate, organic sulfonic acid metal salt such as alkali metal dodecylbenzene sulfonate, higher fatty acid amide Those coated with higher fatty acid ester or wax can also be used.

Further, a compound obtained by substituting a part of the metal of the hydrotalcite compound with another metal such as zinc or a compound obtained by substituting a part or all of the carbonate ion with an anion such as perchlorate ion can also be used.

The amount of the above-mentioned hydrotalcite compound 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.
Parts by weight.

An organic phosphite type antioxidant can be used in combination with the chlorine-containing resin composition of the present invention. Such organic phosphite-based antioxidants include diphenyldecyl phosphite, triphenyl phosphite, tris-
Nonylphenyl phosphite, tridecyl phosphite, tris (2-ethylhexyl) phosphite, tributyl phosphite, dilauryl acid phosphite,
Dibutyl acid phosphite, tris (dinonylphenyl) phosphite, trilauryl trithiophosphite, trilauryl phosphite, bis (neopentyl glycol) -1,4-cyclohexanedimethyl diphosphite, distearyl pentaerythritol diphosphite, Diisodecyl pentaerythritol diphosphite, diphenyl acid phosphite, tris (lauryl-2-thioethyl) phosphite, tetratridecyl-
1,1,3-tris (2'-methyl-5'-tert-butyl-4'-hydroxyphenyl) butanediphosphite,
Tetra (C ₁₂ ~ ₁₅ mixed alkyl) -4,4'-isopropylidene diphenyl diphosphite, tris (4-hydroxy-2,5-di-tert-butylphenyl) phosphite, tris (4-hydroxy-3,5 -Di-tert-butylphenyl) phosphite, 2-ethylhexyldiphenylphosphite, tris (mono, di mixed nonylphenyl)
Phosphite, hydrogenated-4,4'-isopropylidene diphenol polyphosphite, diphenyl bis [4,
4'-n-butylidene bis (2-tert-butyl-5-methylphenol)] thiodiethanol diphosphite, bis (octylphenyl) .bis [4,4'-n-butylidene bis (2-tert-butyl-5- Methylphenol))
-1,6-hexanediol diphosphite, phenyl-4,4'-isopropylidene diphenol pentaerythritol diphosphite, phenyldiisodecyl phosphite, tetratridecyl-4,4'-n-butylidene bis (2-second Examples thereof include tributyl-5-methylphenol) diphosphite and tris (2,4-ditertiarybutylphenyl) phosphite.

A light stabilizer such as an ultraviolet absorber or a hindered amine compound can be used in combination with the chlorine-containing resin composition of the present invention.

Examples of the light stabilizer include 2,4-
2-hydroxybenzophenones such as dihydroxybenzophenone, 2-hydroxy-4-methoxybenzophenone, 2-hydroxy-4-octoxybenzophenone and 5,5′-methylenebis (2-hydroxy-4-methoxybenzophenone); 2- (2 '-Hydroxy-
5'-methylphenyl) benzotriazole, 2-
(2'-Hydroxy-5'-tertiary octylphenyl) 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-3 ', 5'-dicumylphenyl) benzotriazole, 2,2'-methylenebis ( 4-tertiary octyl-6-benzotriazolyl) phenol and the like 2-
(2'-hydroxyphenyl) benzotriazoles;
Phenyl salicylate, resorcinol monobenzoate, 2,4-di-tert-butylphenyl-3 ', 5'-di-tert-butyl-4'-hydroxybenzoate: hexadecyl-3,5-di-tert-butyl-4-hydroxybenzoate, etc. Benzoates; 2-ethyl-2'-ethoxyoxanilide, 2-ethoxy-4'-dodecyloxanilide and other substituted oxanilides; ethyl-α-cyano-
Cyanoacrylates such as β, β-diphenyl acrylate and methyl-2-cyano-3-methyl-3- (p-methoxyphenyl) acrylate; 2,2,6,6-tetramethyl-4-piperidyl stearate, 1 , 2,
2,6,6-pentamethyl-4-piperidyl stearate, 2,2,6,6-tetramethyl-4-piperidyl benzoate, bis (2,2,6,6-tetramethyl-4
-Piperidyl) sebacate, bis (1,2,2,6,6)
-Pentamethyl-4-piperidyl) sebacate, tetrakis (2,2,6,6-tetramethyl-4-piperidyl) -1,2,3,4-butanetetracarboxylate, tetrakis (1,2,2,6) 6-pentamethyl-
4-piperidyl) -1,2,3,4-butanetetracarboxylate, bis (1,2,2,6,6-pentamethyl-4-piperidyl) di (tridecyl) -1,2,
3,4-butane tetracarboxylate, bis (1,
2,2,6,6-pentamethyl-4-piperidyl) -2
-Butyl-2- (3,5-di-tert-butyl-4-hydroxybenzyl) malonate, 1- (2-hydroxyethyl) -2,2,6,6-tetramethyl-4-piperidinol / diethyl succinate Condensate, 1,6-bis (2,
2,6,6-Tetramethyl-4-piperidylamino) hexane / dibromoethane polycondensate, 1,6-bis (2,2
2,6,6-Tetramethyl-4-piperidylamino) hexane / 2,4-dichloro-6-tert-octylamino-
s-triazine polycondensate, 1,6-bis (2,2,6,
6-tetramethyl-4-piperidylamino) hexane /
Examples thereof include hindered amine compounds such as 2,4-dichloro-6-morpholino-s-triazine polycondensate.

The chlorine-containing resin composition of the present invention also comprises
For example, β-aminocrotonates such as 1,4-butanediol bis (β-aminocrotonate) and thiodiglycol bis (β-aminocrotonate); ureas such as diphenylurea and diphenylthiourea; α- Indoles such as phenylindole and α- (octylphenyl) indole; 2,6-dimethyl-3,5-dicarboctooxy-1,4-dihydropyridine, 2,6-dimethyl-3,5-dicarbo Dihydropyridines such as lauryloxy-1,4-dihydropyridine; β-diketone compounds such as dibenzoylmethane, benzoylacetone, stearoylbenzoylmethane, caproylbenzoylmethane, dehydroacetic acid; trimethylolpropane, glycerin, tris (hydroxyethyl) isocyanate Nurate, pentaerythritol Le, dipentaerythritol,
Polyhydric alcohols such as mannitol, sorbit, pentaerythritol / stearic acid ester, dipentaerythritol / adipic acid ester, dipentaerythritol / pyrrolidone carboxylic acid ester; dilauryl thiodipropionate, distearyl thiodipropionate, penta Organic sulfur compounds such as erythritol tetra (lauryl mercaptopropionate); bisphenol A, 2,6-di-tert-butyl-p-cresol, stearyl-3,5-di-tert-butyl-4-hydroxyphenylpropionate And phenols or melamines can be used in combination.

In addition, if necessary, the chlorine-containing resin composition of the present invention includes, for example, a cross-linking agent, a pigment, a filler, a foaming agent, an antistatic agent, an antifogging agent, a plate-out preventing agent, a surface treating agent, Lubricants, flame retardants, fluorescent agents, antifungal agents, bactericides, metal deactivators, photodegradants, processing aids, release agents, reinforcing agents and the like can be included.

[0037]

EXAMPLES The following examples show the effects of the chlorine-containing resin composition of the present invention, but the present invention is not limited to these examples.

Example 1 A test piece having a thickness of 1 mm was prepared by kneading the following composition (compounding) at 190 ° C. for 5 minutes and then pressing at 170 ° C. under 200 kg / cm ² for 5 minutes. This test piece was tested at 63 ° C with sunshine weatherometer (SWOM)
And the blackening time was measured.

Further, the test piece was accelerated by a UV tester, and
With respect to the test pieces after 80 hours and 840 hours, the whiteness was measured with a color difference meter and the chalking phenomenon was observed. In addition, the 60-degree specular glossiness was measured with a gloss meter. Regarding the glossiness, the retention rate was calculated by comparison with the original.

The setting conditions of the UV tester were as follows. Black panel temperature 50 ℃ Light intensity 60mw / cm ² (at
365nm) Humidity 50%

In the table below, compound No. 1 to compound No.
5 are the above-exemplified compounds ([Chemical Formula 5] to [Chemical Formula 9]), and Comparative Compound Nos. 1 to 1 used as comparative compounds
No. 3 is a compound represented by the following [Chemical formula 11] to [Chemical formula 13].

[0042]

[Chemical 11]

[0043]

[Chemical formula 12]

[0044]

[Chemical 13]

The results are shown in [Table 1] below.

(Combination) Polyvinyl chloride (average molecular weight 1050) 100 parts by weight Tribasic lead sulfate 0.5 Lead stearate 1.5 Dibasic lead stearate 0.3 Calcium stearate 0.3 Calcium carbonate 2. 0 Titanium oxide 0.2 Carbon black 0.01 Test compound (see [Table 1]) 0.3

[0047]

[Table 1]

Example 2 A test piece was prepared in the same manner as in Example 1 using the following (blend) composition, and the test piece was placed in a sunshine weatherometer (SOWM) and the blackening time was measured. The choking (whitening) generation time was measured with a UV tester. The respective settings were the same as in Example 1.

The results are shown in Table 2 below.

(Compounding) Polyvinyl chloride (average molecular weight 1050) 100 parts by weight Epoxidized soybean oil 0.5 Zinc stearate 1.0 Calcium stearate 1.0 DHT-4A ^{* 1} 0.5 Dipentaerythritol 0.5 Bisphenol A 0.2 Calcium carbonate 10 Titanium oxide 0.2 Carbon black 0.1 Test compound (see [Table 2]) 0.3 * 1: Synthetic hydrotalcite manufactured by Kyowa Chemical Industry Co., Ltd.

[0051]

[Table 2]

Example 3 A test piece was prepared from the following (blended) composition in the same manner as in Example 1, and an outdoor exposure test (Urawa City, Saitama Prefecture) was conducted using this, and sampling was carried out every 3 months. Then, the gloss loss was obtained in the same manner as in Example 1.

The results are shown in Table 3 below.

(Compounding) Polyvinyl chloride (average molecular weight 1050) 100 parts by weight Calcium stearate 1.0 Zinc stearate 1.0 Dipentaerythritol 0.7 Bisphenol A 0.4 DHT-4A ^{* 1} 0.5 Oxidized polyethylene Wax 0.45 Calcium carbonate 3.0 Titanium oxide 6.0 Test compound (see [Table 3]) 0.3 * 1: Synthetic hydrotalcite manufactured by Kyowa Chemical Industry Co., Ltd.

[0055]

[Table 3]

Example 4 A test piece was prepared in the same manner as in Example 1 using the following formulation (compounding), the blackening time was measured in a gear oven at 190 ° C., and this was used outdoors. Exposure test,
The occurrence of choking was visually evaluated by sampling every three months. The evaluation criterion is 10 out of 10 and indicates that no chalking phenomenon is observed at all, and that the occurrence of chalking is remarkable as the numerical value increases.

The results are shown in Table 4 below.

(Compounding) Polyvinyl chloride (average molecular weight 1050) 100 parts by weight dibasic lead phosphite 2.0 lead stearate 1.0 tribasic lead sulfate 0.5 calcium stearate 0.5 acrylic modification Agent 5 Calcium carbonate 3 Titanium oxide 6 Test compound (see [Table 4]) 0.3

[0059]

[Table 4]

As is clear from [Table 1] to [Table 4], when a benzotriazole compound or a benzophenone compound or a metal salt thereof other than copper, which is used as a general light stabilizer, is used in a chlorine-containing resin. Has a lot of chalking and gloss loss due to light deterioration. When using a copper compound other than the copper compound in the present invention,
Although its light resistance is improved to some extent, it deteriorates thermal stability.

On the other hand, when the copper salt of the benzotriazole compound or the benzophenone compound of the present invention is used, it is excellent in anti-choking property and gloss retention,
Furthermore, it does not lower the thermal stability like other copper compounds.

[0062]

The chlorine-containing resin composition of the present invention is excellent in thermal stability, and has excellent anti-choking property and surface gloss retention property.

Claims (1)

[Claims] 1. At least 100 parts by weight of a chlorine-containing resin are selected from copper compounds represented by the following general formula (I) and / or the following general formula (II). A chlorine-containing resin composition obtained by adding 0.001 to 5 parts by weight of one kind. [Chemical 1] [Chemical 2]