JP2007204525A - Liquid stabilizer composition for vinyl chloride-based resin and plastisol composition containing the liquid stabilizer composition - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a liquid stabilizer composition having excellent performance as a stabilizer for a plastisol consisting essentially of a vinyl chloride-based resin without generating a volatile organic substance (VOC) and a plastisol composition containing the liquid stabilizer composition. <P>SOLUTION: The liquid stabilizer composition for a vinyl chloride-based resin is a liquid stabilizer composition containing an organic acid zinc salt (A). Organic acid components constituting the organic acid zinc salt (A) comprise a ≥16C straight-chain aliphatic unsaturated carboxylic acid (a), isostearic acid (b), benzoic acid (c) which may contain a substituent group and an organic acid (d) except the acids (a), (b) and (c) in which 0.05-0.4 mol of the acid (a), 0.1-0.8 mol of the acid (b), 0.1-0.6 mol of the acid (c) and 0-0.5 mol of the acid (d) are used when the total of the organic acid components is 1 mol. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a liquid stabilizer composition for a vinyl chloride resin, and more specifically, a wallpaper having a low viscosity and excellent stability, mainly including a vinyl chloride resin, generating little volatile organic substances (VOC). The present invention relates to a liquid stabilizer composition for a vinyl chloride resin that can provide a plastisol composition that can be suitably used for interior materials, and a plastisol composition comprising the liquid stabilizer composition for a vinyl chloride resin. .

  Plastisol is composed of a vinyl chloride resin, a plasticizer, a filler, and the like, and has a feature that it can be shaped at room temperature, and is used for applications such as flooring, wallpaper, and leather.

  As the stabilizer for plastisol, a liquid stabilizer containing a metal stabilizer as a main component is usually preferably used for the purpose of suppressing the increase in viscosity of plastisol and simplifying the production process.

  Conventional liquid stabilizers are mainly composed of low molecular weight organic acid zinc such as zinc octylate. However, these low molecular weight organic acid zincs themselves correspond to volatile organic substances (VOCs), and when used for interior materials such as wallpaper obtained from plastisol containing them, low molecular weight organic acids. Since zinc acid may volatilize and induce sick house syndrome, development of an alternative liquid stabilizer has been demanded.

  However, so far, liquid stabilizers that replace these low molecular weight organic acid zinc-based liquid stabilizers have been developed for reasons such as increased sol viscosity or insufficient stabilization ability. It wasn't.

  For example, from JP-A-63-179939, JP-A-7-316372, JP-A-9-67198, JP-A-3002673, etc., long-chain unsaturated fatty acids such as oleic acid metal salts and ricinoleic acid metal salts Any use of an aromatic fatty acid metal salt such as a metal salt, a metal salt of isostearic acid, and a p-tert-butyl metal salt as a stabilizer for an expandable vinyl chloride resin composition is already known. However, there is no suggestion that a liquid stabilizer for plastisol with suppressed VOC can be obtained by selecting and using them in combination at a specific ratio.

JP-A 63-179939 JP 7-316372 A JP-A-9-67198 Japanese Patent No. 3002673

  Accordingly, an object of the present invention is to provide a liquid stabilizer composition for vinyl chloride resins that has excellent performance as a stabilizer for plastisols based on vinyl chloride resins without generating volatile organic substances (VOC). And a plastisol composition comprising the liquid stabilizer composition.

  As a result of intensive studies, the present inventors have found that the above object can be achieved by using an organic acid zinc salt having a specific organic acid composition.

  That is, the present invention is a liquid stabilizer composition for vinyl chloride resin containing an organic acid zinc salt (A), wherein the organic acid component constituting the organic acid zinc salt (A) has 16 or more carbon atoms. Other than the linear aliphatic unsaturated carboxylic acid (a), isostearic acid (b), benzoic acid (c) which can have a substituent, the component (a), the component (b) and the component (c) The organic acid (d) is used as 1 mol of the total organic acid component, and 0.05 to 0.4 mol of the component (a), 0.1 to 0.8 mol of the component (b), and the component (c), respectively. By providing a liquid stabilizer composition for a vinyl chloride resin characterized by being used in an amount of 0.1 to 0.6 mol and the organic acid (d) 0 to 0.5 mol, The goal has been achieved.

  In addition, the present invention includes 10 to 250 parts by mass of a filler, 30 to 100 parts by mass of a plasticizer, and 0.1 to 10 parts by mass of the liquid stabilizer composition for vinyl chloride resin. The object is achieved by providing a plastisol composition characterized by containing the plastisol composition.

The liquid stabilizer composition for vinyl chloride resin according to the present invention is a plastisol that is mainly composed of vinyl chloride resin, contains almost no volatile organic substance (VOC), and has low viscosity and excellent stability of molded products. It is possible to provide a composition.
In addition, the plastisol composition of the present invention has no risk of generating volatile organic substances (VOC) and is less likely to be used for interior materials such as wallpaper.

  Hereinafter, the liquid stabilizer composition for vinyl chloride resin of the present invention and the plastisol composition of the present invention will be described in detail.

  The liquid stabilizer composition for vinyl chloride-based resin of the present invention is a liquid stabilizer composition mainly composed of (A) an organic acid zinc salt, and an organic component constituting the organic acid zinc salt as component (A). The acid component is (a) a linear unsaturated carboxylic acid having 16 or more carbon atoms, (b) isostearic acid, (c) a benzoic acid having a substituent, the component (a), and the component (b). And an organic acid (d) other than the component (c).

  Examples of (a) linear aliphatic unsaturated carboxylic acid having 16 or more carbon atoms include oleic acid, linoleic acid, linolenic acid, ricinoleic acid and the like. Among these linear aliphatic unsaturated carboxylic acids, by using 0.1 to 0.9 / 0.9 to 0.1 (molar ratio) of oleic acid and ricinoleic acid, the low temperature fluidity of the liquid stabilizer is remarkable. It is preferable because it improves.

  (A) The linear aliphatic unsaturated carboxylic acid having 16 or more carbon atoms is 0.05 to 0.4 mol, preferably 0.1 to 0.35 mol, in the total organic acid constituting the organic acid zinc salt. When the amount used is less than 0.05 mol, the stabilizer cannot be liquefied, which is not preferable. When the amount exceeds 0.4 mol, the low temperature stability of the stabilizer is impaired. Therefore, it is not preferable.

  (B) The isostearic acid is used in an amount of 0.1 to 0.8 mol, preferably 0.2 to 0.6 mol, and less than 0.1 mol in the total organic acid constituting the organic acid zinc salt. When not used, it is not preferable because the stabilizer cannot be liquefied, and when exceeding 0.8 mol, the sol viscosity is remarkably increased, which is not preferable.

  Examples of the benzoic acid that can have a substituent (c), which is an organic acid component constituting the organic acid zinc salt (A), include benzoic acid, p-tert-butylbenzoic acid, m-toluic acid, p- Examples include toluic acid. Among the benzoic acids that can have these substituents, use of those having a total carbon number of 11 or more is not preferable because the stabilizer cannot be liquefied.

  (C) The benzoic acid which can have a substituent is used in an amount of 0.1 to 0.6 mol, preferably 0.15 to 0.5 mol in the total organic acid constituting the organic acid metal salt. When the amount used is less than 0.1 mol, the stabilizing ability is remarkably lowered, which is not preferable. When the amount used exceeds 0.5 mol, the sol viscosity is remarkably increased, which is not preferable.

  Examples of the organic acid (d) other than the component (a), the component (b), and the component (c) that are organic acid components constituting the organic acid zinc salt (A) include saturated aliphatic carboxylic acids or carbon atoms. Examples thereof include unsaturated aliphatic carboxylic acids having 15 or less and phenols.

  Examples of the aliphatic carboxylic acid include acetic acid, propionic acid, butyric acid, valeric acid, caproic acid, enanthic acid, caprylic acid, neoic acid, 2-ethylhexyl acid, pelargonic acid, capric acid, undecanoic acid, lauric acid, and tridecanoic acid. , Myristic acid, palmitic acid, stearic acid, 12-hydroxystearic acid, behenic acid, montanic acid, benzoic acid, monochlorobenzoic acid, dimethylhydroxybenzoic acid, 3,5-tert-butyl-4-hydroxybenzoic acid, toluic acid , Dimethylbenzoic acid, ethylbenzoic acid, cumic acid, n-propylbenzoic acid, aminobenzoic acid, N, N-dimethylbenzoic acid, acetoxybenzoic acid, salicylic acid, p-tert-octylsalicylic acid, elaidic acid, linoleic acid, linolenic acid Acid, thioglycolic acid, mercaptopropionic acid, octyl mercapto Monovalent carboxylic acids such as pionic acid, oxalic acid, malonic acid, succinic acid, glutaric acid, adipic acid, pimelic acid, suberic acid, azelaic acid, sebacic acid, phthalic acid, isophthalic acid, terephthalic acid, oxyphthalic acid, chlorophthalic acid , Monoesters or monoamide compounds of divalent carboxylic acids such as aminophthalic acid, maleic acid, fuaric acid, citraconic acid, metaconic acid, itaconic acid, aconitic acid, thiodipropionic acid, hemimertic acid, trimellitic acid, merophanic acid, Examples thereof include di- or triester compounds of trivalent or tetravalent carboxylic acids such as pyromellitic acid and meritic acid.

  Examples of phenols include tert-butylphenol, nonylphenol, dinonylphenol, mixed mono-dinonylphenol, cyclohexylphenol, phenylphenol, octylphenol, phenol, cresol, xylenol, n-butylphenol, isoamylphenol, ethylphenol, isopropylphenol, Examples include isooctylphenol, 2-ethylhexylphenol, tertiary nonylphenol, decylphenol, tertiary octylphenol, isohexylphenol, octadecylphenol, diisobutylphenol, methylpropylphenol, diamylphenol, methylisohexylphenol, and methyl tertiary octylphenol. .

  The organic acid (d) other than the component (a), the component (b) and the component (c) is 0 to 0.5 mol, preferably 0 to 0.3 mol in the total organic acid constituting the organic acid zinc salt. When the amount used is in the range of 0.5 mol, if the amount exceeds 0.5 mol, the low molecular weight component affects the generation of volatile organic substances (VOC). Since it raises remarkably and stabilization ability falls, it is not preferable.

The organic acid zinc salt of the present invention can be any of acidic salt, neutral salt and basic salt.
The content of the organic acid zinc salt of the present invention is preferably 10 to 90% by mass, particularly preferably 40 to 70% by mass, in the liquid stabilizer composition for vinyl chloride resin of the present invention.

The liquid stabilizer composition of the present invention may be used in combination with an organic acid metal salt other than the organic acid zinc salt. Examples of metal components in this case include lithium, sodium, potassium, magnesium, calcium, barium, tin, strontium and the like, and examples of the organic acid residue include the above components (a), (b), and (c And carboxylic acid and phenol residues as exemplified by component (d) above.
As the organic acid metal salts other than these organic acid zinc salts, any of acidic salts, neutral salts, basic salts and overbased salts can be used.
Further, among these organic acid metal salts other than the organic acid zinc salt, it is preferable to use the liquid overbased alkaline earth metal complex (B) in combination because the sol viscosity is lowered.

  The liquid overbased alkaline earth metal complex (B) used here is preferably an alkaline earth metal overbased phenolate or carboxylate / carbonate complex. Alkaline earth metal overbased phenolate or carboxylate / carbonate complexes are generally compounds of the following general formula (I).

（式中、Ｒがフェノール類又は有機カルボン酸の残基を示し、Ｍはアルカリ土類金属を示し、ｚは金属の過剰量で０より大きい正の数を示す。）
また、本発明の塩化ビニル系樹脂用液状安定剤組成物中、上記液状過塩基性アルカリ土類金属錯体（Ｂ）の含有量は、０〜９０質量％、特に５〜７０質量％が好ましい。

(In the formula, R represents a residue of a phenol or an organic carboxylic acid, M represents an alkaline earth metal, and z represents a positive number larger than 0 in an excess amount of the metal.)
Further, in the liquid stabilizer composition for vinyl chloride resin of the present invention, the content of the liquid overbased alkaline earth metal complex (B) is preferably 0 to 90% by mass, particularly preferably 5 to 70% by mass.

  Here, in the general formula (I), examples of the alkaline earth metal represented by M include barium, calcium, magnesium, strontium and the like. Although z is not particularly limited as long as it is a number larger than 0, it is generally preferably 0.1 to 60, particularly preferably 0.5 to 30. Examples of the residue of phenols represented by R include the residues of phenols such as phenol, cresol, ethylphenol, cyclohexylphenol, nonylphenol, and dodecylphenol. Examples of the residue of the organic carboxylic acid represented by R include caproic acid, caprylic acid, pelargonic acid, 2-ethylhexylic acid, capric acid, neodecanoic acid, undecylenic acid, lauric acid, myristic acid, palmitic acid, stearin. Acids, isostearic acid, 12-hydroxystearic acid, chlorostearic acid, 12-ketostearic acid, phenylstearic acid, ricinoleic acid, linoleic acid, linolenic acid, oleic acid, arachidic acid, behenic acid, erucic acid, brassic acid and the like Acid and tallow fatty acid, coconut oil fatty acid, tung oil fatty acid, soybean oil fatty acid, cottonseed oil fatty acid and other naturally occurring organic carboxylic acid mixtures, benzoic acid, pt-butylbenzoic acid, ethylbenzoic acid, isopropylbenzoic acid, Toluic acid, xylic acid, naphthenic acid, cyclohexane Residues of monocarboxylic acids such as Sun carboxylic acid.

  As described above, the alkaline earth metal overbased phenolate or carboxylate / carbonate complex is a compound represented by the above general formula (I), but it may be a phenol or an alkali of an organic carboxylic acid. It is completely different from a simple mixture of an earth metal normal salt and an alkaline earth metal carbonate, which are complexed by some kind of interaction, while having a high alkaline earth metal content, It has the characteristic of showing a uniform liquid in a solvent. This complex is composed of alkaline earth metal orthosalts of phenols or organic carboxylic acids, alkaline earth metal carbonates, and alkaline earth metal composite salts of phenols or organic carboxylic acids and carbonic acid. , Mainly alkaline earth metal carbonates, alkaline earth metal ortho salts of phenols or organic carboxylic acids, and alkaline earth metal composite salts of phenols or organic carboxylic acids and carbonic acid are present in the vicinity thereof, In other words, the formation of micelles shows a uniform liquid state in an organic solvent.

  The alkaline earth metal overbased phenolate or carboxylate / carbonate complex is, for example, a method of reacting the phenol or the organic carboxylic acid with a stoichiometric excess of an alkaline earth metal carbonate, A method of reacting a phenol or the above organic carboxylic acid with a stoichiometric excess of an alkaline earth metal oxide or hydroxide and then treating with carbon dioxide gas, or an alkaline earth of the above phenol or organic carboxylic acid It can be produced by a conventionally known method such as a method of reacting an alkali metal orthosalt with an alkaline earth metal carbonate. The alkaline earth metal overbased phenolate or carboxylate / carbonate complex thus prepared is characterized by the type of metal, the type of acid, the content of metal, the metal ratio, and the like. Here, the term “metal ratio” indicates the total chemical equivalent of the metal in the salt relative to the equivalent of the amount of metal that forms a neutral salt, and corresponds to z + 1 in the above general formula (II).

The alkaline earth metal overbased phenolate or carboxylate / carbonate complex can be easily produced by the method as described above, and various commercially available complexes can be used as they are. . Typical examples of commercially available complexes include “Plastistab ^™ 2116” manufactured by Hammond (overbased barium oleate / carbonate complex: specific gravity 1.42 to 1.53, Ba = 33 to 36%). , “Plastistab ^™ 2513” (overbased barium oleate / carbonate complex: specific gravity 1.41-1.52, Ba = 33-36%), “Plastistab ^™ 2508” (overbased barium oleate / carbonate complex: specific gravity 1 39-1.51, Ba = 33-36%), “Plastistab ^™ 2265” (overbased calcium oleate / carbonate complex: specific gravity 1.04-1.09, Ca = 10%) and the like.

  A liquid overbased carboxylate / carbonate complex using barium as an alkaline earth metal can be produced by the production method described in JP-A No. 2004-238364.

  The production method described in JP-A-2004-238364 includes (a) at least one barium base, (b) at least one linear monovalent carboxylic acid having 8 to 30 carbon atoms, and (c) at least one carbon. Including a step of preparing a mixture using a tertiary monovalent carboxylic acid having 3 alkyl groups of 1 to 10 atoms so as to have an excess of base, in which a natural or synthetic diluent is used. It is preferable to do. Examples of these diluents include aliphatic, alicyclic or aromatic hydrocarbons, esters, ethers, alcohols, and the like, and these may be used as a mixture.

  Among these diluents, a hydrocarbon solvent having a boiling point of 150 ° C. or higher and a monohydric alcohol having 8 to 20 carbon atoms in a molar ratio (the former / the latter) of 1/1 to 4/1, particularly 1.2 / 1. It is more preferable to use a mixed solvent mixed at ˜3.5 / 1 because the reaction can proceed efficiently without causing precipitation.

  Examples of the hydrocarbon solvent having a boiling point of 150 ° C. or higher include EXXSOL D40 (Exxon), EXXSOL D80 (Exxon), EXXSOL D110 (Exxon), various liquid paraffins, various process oils, and the like. . Among these, EXXXSOL D80 is preferable. The boiling point of the hydrocarbon solvent is preferably 200 ° C. or higher.

  Examples of the monohydric alcohol having 8 to 20 carbon atoms include octanol, nonanol, isononanol, decanol, isodecanol, undecanol, dodecanol, tridecanol, tetradecanol, pentadecanol, hexadecanol, heptadecanol, Octadecanol, nonadecanol, eicosanol, etc., or a mixture thereof can be used. Among these, a monohydric alcohol having 10 to 18 carbon atoms is preferable.

  Although the usage-amount of these diluents is not restrict | limited in particular, in order to perform reaction efficiently, it is 50-2000 mass parts with respect to 100 mass parts of total amounts of (a)-(c) component. In particular, it is preferably used in the range of 50 to 500 parts by mass.

  These liquid overbased alkaline earth metal complexes are not only blended with the component (A) of the present invention and used as a one-pack type liquid stabilizer, but can also be added separately to the vinyl chloride resin.

  The liquid stabilizer composition for vinyl chloride resin of the present invention can contain various additives used for ordinary vinyl chloride resins as long as they do not hinder the liquefaction point. . Moreover, a plasticizer, a diluent, etc. can be contained.

  The plastisol composition of the present invention contains the liquid stabilizer composition for vinyl chloride resin of the present invention as a stabilizer for vinyl chloride resin. Specifically, the composition is contained in 100 parts by mass of vinyl chloride resin. , 10 to 250 parts by weight of filler, 30 to 100 parts by weight of plasticizer, and 0.1 to 10 parts by weight of the liquid stabilizer composition for vinyl chloride resin of the present invention.

  Here, as the vinyl chloride resin, for example, polyvinyl chloride, pentachlorinated polyvinyl chloride, 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-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 ester copolymer, vinyl chloride-maleic acid ester copolymer Coalescence, vinyl chloride - methacrylic acid ester copolymers, vinyl chloride - acrylonitrile copolymer, vinyl chloride - such as urethane copolymer. A commercially available product may also be used. In use, they can be used alone or as a mixture.

  When the liquid stabilizer composition for vinyl chloride resin of the present invention is blended with the vinyl chloride resin, the blending amount of the organic acid zinc salt is 0.01 to 100 parts by mass of the vinyl chloride resin. The amount is preferably 10 parts by mass, particularly 0.05 to 5 parts by mass. When the blending amount of the (A) organic acid zinc salt is less than 0.01 parts by mass, the effect of blending is not expected, and even when the blending amount exceeds 10 parts by mass, no improvement in curing is observed. Since there is a possibility of causing zinc burn, it is not preferable.

  The blending amount of the liquid overbased metal complex (the blending amount as an overbased metal complex when blended in the liquid stabilizer composition for vinyl chloride resin) is based on 100 parts by mass of the vinyl chloride resin. 0.01 to 10 parts by mass, particularly 0.05 to 10 parts by mass, and more preferably 0.1 to 5 parts by mass. When the blending amount is less than 0.01 parts by mass, the effect of blending is not expected, and even when the blending amount exceeds 10 parts by mass, the effect is not improved, and there is a possibility of causing defects such as coloring. is there.

  In addition to the vinyl chloride resin composition obtained by blending the liquid stabilizer composition of the present invention, the composition of the present invention further contains additives that are usually used in vinyl chloride resins, for example, if necessary. , Plasticizers, fillers, colorants, cross-linking agents, antistatic agents, plate-out prevention agents, surface treatment agents, lubricants, flame retardants, fluorescent agents, antifungal agents, bactericides, metal deactivators, mold release agents , Pigments, processing aids, antioxidants, light stabilizers, foaming agents, and the like.

  The vinyl chloride resin composition can be used regardless of the processing method. For example, calendering, roll processing, extrusion molding, melt rolling, pressure molding, paste processing, powder processing, etc. It can be suitably used for body molding processing, foam molding processing and the like.

  The above-mentioned vinyl chloride resin composition is used for building materials such as wall materials, floor materials, window frames and wallpaper; wire covering materials; automotive interior and exterior materials; agricultural materials such as houses and tunnels; and fish food packaging such as wraps and trays. Materials: Can be used as miscellaneous goods such as paints, hoses, pipes, sheets, and toys.

The liquid stabilizer composition for vinyl chloride resin of the present invention is suitably used as a stabilizer for plastisol comprising a vinyl chloride resin, a plasticizer, a filler and the like.
The plastisol composition of the present invention will be described in detail below.

  The plastisol composition of the present invention is a plastisol composition comprising a vinyl chloride resin, a filler, a plasticizer, and the liquid stabilizer composition.

  Examples of the vinyl chloride resin used in the plastisol composition of the present invention include vinyl chloride resins as exemplified above. In particular, it is preferable to use a paste vinyl chloride resin obtained by an emulsion polymerization method or a fine particle suspension polymerization method (micro suspension) or a mixture of this and a blend resin.

  Examples of the filler used in the plastisol composition of the present invention include calcium carbonate, calcium sulfate, calcium sulfite, calcium hydroxide, magnesium carbonate, barium sulfate, aluminum hydroxide, titanium oxide, talc, asbestos, kaolin, clay and silica. Can be given.

  The amount of the filler added is preferably 10 to 250 parts by weight with respect to 100 parts by weight of the vinyl chloride resin.

The plasticizer used in the plastisol composition of the present invention is not particularly limited as long as it is a normal plasticizer used for vinyl chloride resins, and examples thereof include di-n-butyl phthalate and di-n phthalate. - octyl phthalate, di-2-ethylhexyl, diisooctyl phthalate, octyl decyl, diisodecyl phthalate, di C ₇ ~ ₉ mixed alkyl phthalate, butyl benzyl phthalate, phthalic acid and isophthalic acid di-2-ethylhexyl Plasticizer, fatty acid ester plasticizer such as di-2-ethylhexyl adipate, diisodecyl adipate, di-2-ethylhexyl azelate, dibutyl sebacate, di-2-ethylhexyl sebacate, tributyl phosphate, triphosphate phosphate 2-ethylhexyl, tricresyl phosphate, trixyl phosphate, etc. Examples include acid ester plasticizers, chlorine plasticizers such as chlorinated paraffins, chlorinated fatty acid esters, epoxy plasticizers, polyester plasticizers, etc., and use one or a mixture of two or more of these. Can do.

  The amount of the plasticizer added is preferably 30 to 100 parts by weight, particularly 50 to 80 parts by weight, based on 100 parts by weight of the vinyl chloride resin.

  The liquid stabilizer composition for vinyl chloride resin of the present invention exhibits an excellent effect on foamability and stability of a foam obtained from a plastisol composition containing a pyrolytic organic foaming agent. .

  Examples of the thermally decomposable organic foaming agent used in the plastisol composition of the present invention include N, N′-dinitropentamethylenetetramine, azodicarbonamide, p, p′-bis (benzenesulfonylhydrazide) ether, and p-toluenesulfonyl. A hydrazide etc. and these combination are mention | raise | lifted.

  The amount of the pyrolytic organic foaming agent added is preferably 0.05 to 10 parts by weight, more preferably 0.2 to 5 parts by weight, based on 100 parts by weight of the vinyl chloride resin.

  In addition to the plastisol composition of the present invention, organic phosphite compounds, epoxy compounds, hindered amine light stabilizers, ultraviolet absorbers, phosphorus-based, phenol and / or sulfur-based antioxidants, perchlorates, and other inorganic metal compounds Other stabilizing aids, cell regulators and the like can be added as necessary. These can be added to the liquid stabilizer composition to form a one-pack stabilizer.

Examples of the organic phosphite compound include tributyl phosphite, tri (2-ethylhexyl) phosphite, tridecyl phosphite, trilauryl phosphite, dibutyl acid phosphite, dilauryl acid phosphite, 2-ethylhexyl diphenyl phosphite, phenyl Diisodecyl phosphite, diphenyl decyl phosphite, triphenyl phosphite, tris (nonylphenyl) phosphite, tris (mono / di-mixed nonylphenyl) phosphite, diphenyl acid phosphite, distearyl pentaerythritol diphosphite, diisodecyl pentaerythritol Diphosphite, phenyl-4,4'-isopropylidenediphenol / pentaerythritol diphosphite, hexa (tridecyl) -1,1,3-to Scan (2'-methyl-5'-tert-butyl-4'-hydroxyphenyl) butane triphosphite, tetra (C ₁₂ -C ₁₅ mixed alkyl) -4,4'-isopropylidene diphenyl diphosphite, tetra (tridecyl ) -4,4'-n-butylidenebis (2-tert-butyl-5-methylphenol) diphosphite, hydrogenated-4,4'-isopropylidenediphenol polyphosphite, diphenyl bis [4,4'-n -Butylidenebis (2-tert-butyl-5-methylphenol)] thiodiethanol diphosphite, bis (octylphenyl) bis [4,4'-n-butylidenebis (2-tert-butyl-5-methylphenol)] 1,6-hexanediol diphosphite, tris (2,4-di-tert-butylphenyl) phosphite and the like.

  Examples of the epoxy compound include epoxidized soybean oil, epoxidized linseed oil, epoxidized beef oil, epoxidized fish oil, epoxidized tall oil fatty acid ester, epoxidized castor oil, epoxidized safflower oil, epoxidized polybutadiene, and epoxidized linseed Oil fatty acid butyl, epoxidized methyl stearate, -butyl, -2-ethylhexyl, -stearyl, tris (epoxypropyl) isocyanurate, 3- (2-xenoxy) -1,2-epoxypropane, bisphenol A diglycidyl ether Vinylcyclohexene diepoxide, dicyclopentadiene diepoxide, 3,4-epoxycyclohexyl-6-methylepoxycyclohexanecarboxylate, and the like.

  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, 2,2, 6,6-tetramethyl-4-piperidylbenzoate, bis (2,2,6,6-tetramethyl-4-piperidyl) sebacate, bis (1,2,2,6,6-pentamethyl-4-piperidyl) sebacate Bis (1-octoxy-2,2,6,6-tetramethyl-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 (2,2 6,6-tetramethyl-4-piperidyl) bis (tridecyl) -1,2,3,4-butanetetracarboxylate, bis (1,2,2,6,6-pentamethyl-4-piperidyl) bis (Tridecyl) -1,2,3,4-butanetetracarboxylate, bis (1,2,2,6,6-pentamethyl-4-piperidyl) -2-butyl-2- (3,5-ditertiary Butyl-4-hydroxybenzyl) malonate, 1- (2-hydroxyethyl) -2,2,6,6-tetramethyl-4-piperidinol / diethyl succinate polycondensate, 1,6-bis (2,2, 6,6-tetramethyl-4-piperidylamino) hexane / dibromoethane polycondensate, 1,6-bis (2,2,6,6-tetramethyl-4-piperidylamino) hexane / 2,4-dichloro- -Morpholino-s-triazine polycondensate, 1,6-bis (2,2,6,6-tetramethyl-4-piperidylamino) hexane / 2,4-dichloro-6-tert-octylamino-s-triazine Polycondensate, 1,5,8,12-tetrakis [2,4-bis (N-butyl-N- (2,2,6,6-tetramethyl-4-piperidyl) amino) -s-triazine-6 -Yl] -1,5,8,12-tetraazadodecane, 1,5,8,12-tetrakis [2,4-bis (N-butyl-N- (1,2,2,6,6-pentamethyl) -4-piperidyl) amino) -s-triazin-6-yl] -1,5,8,12-tetraazadodecane, 1,6,11-tris [2,4-bis (N-butyl-N- ( 2,2,6,6-tetramethyl-4-piperidyl) amino-s-triazine -6-ylamino] undecane, 1,6,11-tris [2,4-bis (N-butyl-N- (1,2,2,6,6-pentamethyl-4-piperidyl) amino-s-triazine- 6-ylamino] undecane, 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-piperidyloxycarbonyl] Oxy) butylcarbonyloxy] ethyl] -2,4,8,10-tetraoxaspiro [5.5] undecane and the like.

  Examples of the ultraviolet absorber include 2,4-dihydroxybenzophenone, 2-hydroxy-4-methoxybenzophenone, 2-hydroxy-4-octoxybenzophenone, 2-hydroxy-4-tert-butyl-4 ′-(2 2-methacryloyloxyethoxyethoxy) benzophenone, 2-hydroxybenzophenones such as 5,5′-methylenebis (2-hydroxy-4-methoxybenzophenone); 2- (2-hydroxy-5-methylphenyl) benzotriazole, 2- (2-hydroxy-5-tert-octylphenyl) benzotriazole, 2- (2-hydroxy-3,5-ditert-butylphenyl) -5-chlorobenzotriazole, 2- (2-hydroxy-3-tertiary) Butyl-5-methylphenyl) -5-chlorobenzotriazole, 2 (2-hydroxy-3-dodecyl-5-methylphenyl) benzotriazole, 2- (2-hydroxy-3-tert-butyl-5-C7-9 mixed alkoxycarbonylethylphenyl) triazole, 2- (2-hydroxy- 3,5-dicumylphenyl) benzotriazole, 2,2′-methylenebis (4-tert-octyl-6-benzotriazolylphenol), 2- (2-hydroxy-3-tert-butyl-5-carboxyphenyl) ) 2- (2-hydroxyphenyl) benzotriazoles such as polyethylene glycol esters of benzotriazole; 2- (2-hydroxy-4-hexyloxyphenyl) -4,6-diphenyl-1,3,5-triazine, 2 -(2-hydroxy-4-methoxyphenyl) -4,6-diphenyl-1,3,5-to Azine, 2- (2-hydroxy-4-octoxyphenyl) -4,6-bis (2,4-dimethylphenyl) -1,3,5-triazine, 2- (2-hydroxy-4-acryloyloxyethoxy) Phenyl) -4,6-bis (2,4-dimethylphenyl) -1,3,5-triazine, 2- (2-hydroxy-4- (2-ethylhexyloxyloyloxyethoxyphenyl) -4,6- 2- (2-hydroxyphenyl) -1,3,5-triazines such as bis (2,4-dimethylphenyl) -1,3,5-triazine; phenyl salicylate, resorcinol monobenzoate, 2,4-diter 3-butylphenyl-3,5-ditert-butyl-4-hydroxybenzoate, 2,4-ditert-amylphenyl-3,5-ditert-butyl-4-hydroxybenzoate Benzoates such as zoate and hexadecyl-3,5-ditert-butyl-4-hydroxybenzoate; substituted oxanilides such as 2-ethyl-2′-ethoxyoxanilide and 2-ethoxy-4′-dodecyloxanilide Cyanoacrylates such as ethyl-α-cyano-β, β-diphenyl acrylate and methyl-2-cyano-3-methyl-3- (p-methoxyphenyl) acrylate;

  Examples of the phosphorus antioxidant include triphenyl phosphite, tris (2,4-ditert-butylphenyl) phosphite, tris (nonylphenyl) phosphite, tris (dinonylphenyl) phosphite, tris ( Mono-, di-mixed nonylphenyl) phosphite, bis (2-tert-butyl-4,6-dimethylphenyl) -ethyl phosphite, diphenyl acid phosphite, 2,2'-methylene bis (4,6-di-tert-butyl) Phenyl) octyl phosphite, diphenyl decyl phosphite, phenyl diisodecyl phosphite, tributyl phosphite, tris (2-ethylhexyl) phosphite, tridecyl phosphite, trilauryl phosphite, dibutyl acid phosphite, dilauryl acid phosphite, bird Uril trithiophosphite, bis (neopentylglycol) 1,4-cyclohexanedimethyldiphosphite, bis (2,4-ditert-butylphenyl) pentaerythritol diphosphite, bis (2,6-ditert-butyl) -4-methylphenyl) pentaerythritol diphosphite, distearyl pentaerythritol diphosphite, tetra (C12-15 mixed alkyl) -4,4'-isopropylidene diphenyl phosphite, bis [2,2'-methylenebis (4 , 6-Diamylphenyl)]-isopropylidene diphenyl phosphite, hydrogenated-4,4'-isopropylidene diphenol polyphosphite, tetratridecyl 4,4'-butylidenebis (2-tert-butyl-5- Methylphenol) diphosphite, hexa (tridecyl) 1,1,3-tris (2-methyl-5-tert-butyl-4-hydroxyphenyl) butane triphosphonite, 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide 2-butyl-2-ethylpropanediol. 2,4,6-tritert-butylphenol monophosphite and the like.

  Examples of the phenol-based antioxidant include 2,6-ditert-butyl-p-cresol, 2,6-diphenyl-4-octadecyloxyphenol, stearyl (3,5-ditert-butyl-4- Hydroxyphenyl) propionate, distearyl (3,5-ditert-butyl-4-hydroxybenzyl) phosphonate, tridecyl 3,5-ditert-butyl-4-hydroxybenzylthioacetate, thiodiethylenebis [(3,5 -Di-tert-butyl-4-hydroxyphenyl) propionate], 4,4'-thiobis (6-tert-butyl-m-cresol), 2-octylthio-4,6-di (3,5-di-tert-butyl) -4-hydroxyphenoxy) -s-triazine, 2,2'-methylenebis (4-methyl-6-tert-butylphenol), bis [3,3-bis ( -Hydroxy-3-tert-butylphenyl) butyric acid] glycol ester, 4,4′-butylidenebis (4,6-ditert-butylphenol), 2,2′-ethylidenebis (4,6-ditert-butylphenol) ), 1,1,3-tris (2-methyl-4-hydroxy-5-tert-butylphenyl) butane, bis [2-tert-butyl-4-methyl-6- (2-hydroxy-3-tertiary) 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-trimethylbenze 1,3,5-tris [(3,5-ditert-butyl-4-hydroxyphenyl) propionyloxyethyl] isocyanurate, tetrakis [methylene-3- (3,5-ditert-butyl-4- Hydroxyphenyl) propionate] methane, 2-tert-butyl-4-methyl-6- (2-acryloyloxy-3-tert-butyl-5-methylbenzyl) phenol, 3,9-bis [2- (3- Tert-butyl-4-hydroxy-5-methylhydrocinnamoyloxy) -1,1-dimethylethyl] -2,4,8,10-tetraoxaspiro [5.5] undecane], triethylene glycol bis [β -(3-tert-butyl-4-hydroxy-5-methylphenyl) propionate] and the like.

  Examples of the sulfur-based antioxidant include dialkylthiodipropionates such as dilauryl, dimyristyl, myristylstearyl, and distearyl esters of thiodipropionic acid and polyols such as pentaerythritol tetra (β-dodecyl mercaptopropionate). And β-alkyl mercaptopropionic acid esters.

  Examples of the perchlorates include lithium, sodium, potassium, strontium, barium, zinc, cadmium, lead, aluminum, and ammonium salts of perchloric acid. These metal salts of perchloric acid are anhydrides. Alternatively, it may be a hydrated salt, or may be a salt dissolved in an alcohol or ester solvent such as butyl diglycol or butyl diglycol adipate or a dehydrate thereof.

  Examples of the other inorganic metal compounds include calcium silicate, calcium phosphate, calcium oxide, calcium hydroxide, magnesium silicate, magnesium phosphate, magnesium oxide, and magnesium hydroxide.

  Examples of the other stabilizing aids include diphenylthiourea, anilinodithiotriazine, melamine, benzoic acid, cinnamic acid, and p-tert-butylbenzoic acid.

  Examples of the cell regulator include alkyl acrylate homopolymers and copolymers thereof with allyl acrylate, alkyl methacrylate, acrylonitrile, and the like.

  In addition, the plastisol composition of the present invention further includes additives used for the vinyl chloride resin as necessary, for example, coloring agents, crosslinking agents, antistatic agents, plate-out preventing agents, surface treatment agents, lubricants, Flame retardants, fluorescent agents, antifungal agents, bactericides, metal deactivators, mold release agents, pigments, processing aids, antioxidants, light stabilizers, foaming agents and the like can be blended.

  In addition, the plastisol composition of the present invention is a molding method such as a rotational molding method, a dip molding method, a mold molding method, a slush molding method, etc .; and as a coating agent for substrates such as paper, cloth, metal, and glass nonwoven fabric. It can be applied to usual paste processing methods such as coating methods such as spread coating methods, dip coating methods, gravure printing methods, screen printing methods, and spray methods.

The plastisol composition of the present invention can be used as wallpaper, flooring, PVC steel sheet, canvas, industrial parts, hoses, sheets, leather, toys, rubber gloves, rubber boots and the like.
In particular, the plastisol composition of the present invention can be suitably used for interior materials such as wallpaper and floor because the generation of volatile organic substances (VOC) causing sick house syndrome is suppressed.

EXAMPLES Next, although an Example demonstrates this invention further in detail, this invention is not restrict | limited by the following Example. Examples 1-1 to 1-8 show the production of an organic acid zinc salt, the preparation of a liquid stabilizer composition for a vinyl chloride resin, and the evaluation of the storage stability of the liquid stabilizer composition for a vinyl chloride resin. Comparative Examples 1-1 to 1-8 are the production of comparative organic acid zinc salts, the preparation of a comparative liquid stabilizer composition for vinyl chloride resin, and the evaluation of the storage stability of the comparative liquid stabilizer composition for vinyl chloride resin. Indicates.
Examples 2-1 to 2-8 were prepared from the plastisol composition containing the liquid stabilizer composition for vinyl chloride resin obtained in Examples 1-1 to 1-8, and the plastisol composition. Comparative examples 2-1 to 2-8 are comparative plastisol composition preparations containing the comparative vinyl chloride resin liquid stabilizer composition obtained in Comparative Examples 1-1 to 1-8, and the comparative plastisol. The evaluation of the composition is shown.

[Examples 1-1 to 1-8 (Production of organic acid zinc salt and preparation of liquid stabilizer compositions No. 1 to No. 8 for vinyl chloride resins and liquid stabilizer composition No. 1 for vinyl chloride resins) 1 to No. 8) and Comparative Examples 1-1 to 1-8 (Production of Comparative Organic Acid Zinc Salts and Comparative Liquid Chloride Stabilizer Compositions No. 1A to No. 8A and Comparative Chlorination) Evaluation of Liquid Stabilizer Composition No. 1A to No. 8A for Vinyl Resin)]
Zinc oxide and organic acid were mixed in the molar ratios shown in the following [Table 1] and [Table 2], and the mixture was heated to 135 to 145 ° C. with stirring to perform a dehydration reaction, and further 125 to 135 ° C., 30 An organic acid zinc salt and a comparative organic acid zinc salt were produced by dehydration under reduced pressure with Toll.
Furthermore, the obtained organic acid zinc salt or comparative organic acid zinc salt and the compounding agents shown in the following [Table 1] and [Table 2] were blended, respectively, and a liquid stabilizer composition for vinyl chloride resin (No. 1). To No. 8) and a comparative vinyl chloride resin liquid stabilizer composition (No. 1A to No. 8A). The obtained liquid stabilizer composition for vinyl chloride resins (No. 1 to No. 8) and the comparative liquid stabilizer composition for vinyl chloride resins (No. 1A to No. 8A) are sample bottles with caps of 50 cc. After sealing and sealing, the state of the sample bottle after standing for 5 days in a thermostatic bath at 5 ° C. was visually confirmed, and storage stability was evaluated in the following three stages. The results are shown in [Table 1] and [Table 2] below. ○: No change at all, △: Nigiri, ×: Precipitation

有機酸成分の配合割合は「モル」、液状安定剤の配合割合は質量％で示した。
表中（ａ）〜（ｄ）は有機酸亜鉛塩を構成する有機酸成分を示す。
ｐｔＢＢＡ：ｐ−第三ブチル安息香酸
Ｖｅｒ１０：エクソンモービル社製；ネオデカン酸
ＰＳ−２５１３：Ｈａｍｍｏｎｄ社製；Ｐｌａｓｔｉｓｔａｂ^TM２５１３
ＬＳ−１２：旭電化工業（株）製（アデカスタブ）；１２−ヒドロキシステアリン酸
ＬＢ−９３：旭電化工業（株）製；ラウリルアルコールＥＯ／ＰＯ付加物
ＤＩＮＰ：ジイソノニルフタレート

The blending ratio of the organic acid component is “mol”, and the blending ratio of the liquid stabilizer is represented by mass%.
(A)-(d) in a table | surface shows the organic acid component which comprises organic acid zinc salt.
ptBBA: p-tert-butylbenzoic acid Ver10: manufactured by ExxonMobil; neodecanoic acid PS-2513: manufactured by Hammond; Plasistab ^™ 2513
LS-12: Asahi Denka Kogyo Co., Ltd. (Adekastab); 12-hydroxystearic acid LB-93: Asahi Denka Kogyo Co., Ltd .; Lauryl alcohol EO / PO adduct DINP: Diisononyl phthalate

有機酸成分の配合割合は「モル」、液状安定剤の配合割合は質量％で示した。
表中（ａ）〜（ｄ）は比較有機酸亜鉛塩を構成する有機酸成分を示す。

The blending ratio of the organic acid component is “mol”, and the blending ratio of the liquid stabilizer is represented by mass%.
(A)-(d) in a table | surface shows the organic acid component which comprises a comparison organic acid zinc salt.

[Examples 2-1 to 2-8 (Preparation of plastisol compositions containing liquid stabilizer compositions No. 1 to No. 8 for vinyl chloride resins obtained in Examples 1-1 to 1-8 and Evaluation of the plastisol composition) and Comparative Examples 2-1 to 2-8 (Comparative Examples 1-1A to 1-8 for Comparative Vinyl Chloride Resin Liquid Stabilizer Compositions No. 1A to No. 8A) Preparation of comparative plastisol composition to be contained and evaluation of the comparative plastisol composition)]
The following formulations were kneaded with a kneader for 30 minutes, and defoamed and stirred for 60 minutes to prepare a plastisol composition and a comparative plastisol composition. The sol viscosity (mPa.s) was measured using a B-type viscometer (6 rpm, 12 rpm, 30 rpm, and 60 rpm) for the samples that were immediately after preparation of these plastisol compositions and comparative plastisol compositions and left at room temperature for 1 day. A straight line was drawn from the log of the rotation speed and the sol viscosity at this time by the least square method, and the absolute value of the slope was shown as the TI value.
Moreover, these plastisol compositions and comparative plastisol compositions were applied on paper to a thickness of 0.2 mm and heated in a gear oven at 150 ° C. for 60 seconds to obtain gelled sheets. Using this gelled sheet, foam sheets of 30 seconds, 60 seconds, and 120 seconds were prepared in a gear oven at 220 ° C., respectively, and the expansion ratio of the obtained sheet (thickness of foamed sheet / thickness of unfoamed sheet) ) To measure foamability. Further, the yellowness (YI) of these foamed sheets was measured with a colorimeter. In addition, a foam sheet of 60 seconds was prepared in a gear oven at 20 ° C., left at 40 ° C. for 1 day, and the amount of VOC (organic volatile substance) generated was calculated by calculating the mass change before and after being left as it was. The volatility was determined. All the above results are shown in the following [Table 3] and [Table 4].

Normally, the amount of VOC (organic volatile substance) generated is measured by the chamber method. The measurement method of the chamber method is in accordance with the method described in JIS A 1901. The measurement conditions are 20 L, temperature 28 ° C. ± 1 ° C., humidity 50 ± 5%, chamber ventilation rate 0.5 times / 1 hour chamber Measure a 147 mm square sample.
The volatile data obtained from the amount of VOC (organic volatile substance) generated above has the correlation shown in Table 5 with the value of the amount of VOC (organic volatile substance) measured by the chamber method. . As a target value, 400 μg / m ^3, that is, a volatility of 0.5% or less was set by the chamber method.

(Composition) Mass parts Vinyl chloride resin (manufactured by Kaneka Chemical; PSL-280) 100
Diisononyl phthalate 50
Calcium carbonate 100
Titanium oxide 17
Azodicarbonamide 4
Mineral Spirit 10
Liquid stabilizer composition ([Table 1] and [Table 2]) 4

  As is clear from the above examples, the liquid stabilizer composition mainly composed of zinc organic acid obtained by using the organic acid component (a), (b), (c) and (d) in a specific ratio. The product is liquid and excellent in storage stability. In addition, the plastisol composition of the present invention obtained by blending the liquid stabilizer composition of the present invention has excellent viscosity characteristics, excellent foamability and colorability, and almost no volatile organic substances (VOC) are generated. Absent.

Claims (9)

  A liquid stabilizer composition for a vinyl chloride resin containing an organic acid zinc salt (A), wherein the organic acid component constituting the organic acid zinc salt (A) is a straight chain aliphatic group having 16 or more carbon atoms. Saturated carboxylic acid (a), isostearic acid (b), benzoic acid (c) which can have a substituent and organic acid (d) other than component (a), component (b) and component (c) Are each 1 mol of the total organic acid component, 0.05 to 0.4 mol of the component (a), 0.1 to 0.8 mol of the component (b), and 0.1 to 0.8 mol of the component (c). A liquid stabilizer composition for a vinyl chloride resin characterized by being used in an amount of 6 mol and 0 to 0.5 mol of the organic acid (d).   The organic acid component constituting the organic acid zinc salt (A) is 0.1 to 0.35 mol of the component (a) and 0.2 to 0. The vinyl chloride resin according to claim 1, wherein 6 mol, 0.2 to 0.5 mol of the component (c), and 0 to 0.3 mol of the organic acid (d) are used. Liquid stabilizer composition.   The linear aliphatic unsaturated carboxylic acid (a) having 16 or more carbon atoms is a combination of oleic acid and ricinoleic acid in a ratio of 0.1 to 0.9 / 0.9 to 0.1 (molar ratio). The liquid stabilizer composition for vinyl chloride resin according to claim 1 or 2, wherein   The benzoic acid (c) capable of having the substituent is at least one selected from benzoic acid, p-tert-butylbenzoic acid and toluic acid. A liquid stabilizer composition for vinyl chloride resin as described in 1.   Content of the said organic acid zinc salt (A) is 10-90 mass%, The liquid stabilizer composition for vinyl chloride-type resins in any one of Claims 1-4 characterized by the above-mentioned.   The liquid stabilizer composition for vinyl chloride resins according to any one of claims 1 to 5, further comprising at least one liquid overbased alkaline earth metal complex (B).   10 to 250 parts by mass of a filler, 30 to 100 parts by mass of a plasticizer, and 0.1 to 0.1 of the liquid stabilizer composition for a vinyl chloride resin according to any one of claims 1 to 5 A plastisol composition comprising 10 parts by mass.   The plastisol composition according to claim 7, further comprising 0.05 to 10 parts by mass of a pyrolytic organic foaming agent. The plastisol composition according to claim 7 or 8, which is used for interior building materials or automotive interior materials.