PLASTICIZER FOR VINYL CHLORIDE RESIN CONTAINING NON-PHTHALATE ESTER AND VINYL CHLORIDE RESIN COMPOSITION CONTAINING SUCH PLASTICIZER

摘要

An object of the present invention is to provide a plasticizer for vinyl chloride-based resin superior in cold resistance and volatility resistance, and desirable in flexibility, fogging resistance, heat discoloration resistance, and weather resistance, and to also provide a vinyl chloride-based resin composition comprising the plasticizer.;An ester obtained by reacting a specific carboxylic acid or a derivative thereof with a C9 saturated aliphatic alcohol at a specific proportion is superior in cold resistance and volatility resistance, and desirable in flexibility, fogging resistance, heat discoloration resistance, and weather resistance. Therefore, if becomes possible to obtain a vinyl chloride-based resin composition applicable to automobile parts, medical materials, or the like, as well as a molded article of the vinyl chloride-based resin composition.

主权项

1. A plasticizer for vinyl chloride-based resin, comprising a non-phthalate ester (C) obtained by reacting a polycarboxylic acid (A) and an alcohol (B),
wherein: (i) the polycarboxylic acid (A) is a polycarboxylic acid compound selected from the group consisting of alicyclic dicarboxylic acids, aromatic tricarboxylic acids, and derivatives thereof; (ii) the alcohol (B) is a saturated aliphatic alcohol (B1) comprising a C9 saturated aliphatic alcohol as a major component; (iii) the saturated aliphatic alcohol (B1) comprises a linear C9 saturated aliphatic alcohol (B1-1) of 60 wt % or more, and a branched C9 saturated aliphatic alcohol (B1-2) of 40 wt % or less; (iv) the linear-chain ratio of the alcohol (B1) is 60% or more; and (v) the non-phthalate ester (C) does not substantially comprise a phthalate ester obtained by reacting a phthalic acid compound or a derivative thereof with an alkyl alcohol having 8 or fewer carbon atoms.