Plasticizer for vinyl chloride resin, vinyl chloride resin composition, wire harness, and dashboard

A vinyl chloride resin composition comprising a plasticizer for a vinyl chloride resin and a vinyl chloride resin wherein the plasticizer for a vinyl chloride resin comprising:

• an ester compound (A1) represented by General Formula (1):
• wherein x is an integer of 2 to 4, plural L's may be the same or different, plural R1's may be the same or different, plural R2's may be the same or different, L's each represent an aliphatic oxycarboxylic acid residue having 3 to 18 carbon atoms or a cyclic ester residue having 3 to 18 carbon atoms, R1's each represent an alkyl group having 6 to 18 carbon atoms, R2's each represent a hydrogen atom or an alkyl group having 1 to 6 carbon atoms, and plural a's each represents a repeating number of L, provided that the total of the plural a's is from 1 to 10, and
• wherein the ester compound (A1) is produced by a reaction between benzenecarboxylic acid, which is one or more compounds selected from the group consisting of phthalic acid, isophthalic acid, terephthalic acid, trivalent benzenecarboxylic acid, tetravalent benzenecarboxylic acid, alkyl esters thereof, and phthalic acid anhydride;
• a cyclic ester selected from the group consisting of ε-caprolactone, methyl-ε-caprolactone, and dimethyl-ε-caprolactone;
• and a saturated aliphatic monoalcohol selected from the group consisting of dodecanol, tridecanol, tetradecanol, isotridecanol, pentadecanol, and hexadecanol, or a mixture of saturated aliphatic monoalcohols consisting of monoalcohols having alkyl group with 6 to 18 carbon atoms and the saturated aliphatic monoalcohol selected from the group consisting of dodecanol, tridecanol, tetradecanol, isotridecanol, pentadecanol, and hexadecanol, wherein the saturated aliphatic monoalcohol or the mixture of saturated aliphatic monoalcohols having a straight chain percentage of 85 mol % or more, and
• wherein the content of the plasticizer for a vinyl chloride resin is from 10 to 100 parts by mass with respect to 100 parts by mass of the vinyl chloride resin.