PLASTICIZING COMPOSITION CONTAINING POLYMER ESTERS OF DICARBOXYLIC ACIDS AND DIALKYL ESTERS OF TEREPHTHALIC ACID

FIELD: chemical or physical processes.SUBSTANCE: invention relates to a plasticising composition containing at least one polymer dicarboxylic acid ester and at least one dialkyl ester of terephthalic acid, to molding compositions containing a thermoplastic polymer or elastomer and said plasticizing composition, as well as to use of said plasticising compositions and molding compounds. Described is a plasticising composition for a thermoplastic polymer selected from polyvinyl chloride (PVC), polyvinyl butyral (PVB), homopolymers and vinyl acetate copolymers, homopolymers and copolymers of styrene, polyacrylates, thermoplastic polyurethanes (TPU) or polysulphides, containing: a) one or more compounds of general formula (I):,in which X in each case denotes a straight alkylene group with 2-8 carbon atoms, Y in each case denotes a straight or branched alkylene group with 2-12 carbon atoms, and is integer from 1 to 100 and R1are independently selected from unbranched alkyl residues with 1-12 carbon atoms, wherein the Y groups contained in the compounds of formula (I) can be identical or can differ from each other, and wherein if compounds of formula (I) contain more than one X group, the latter are identical, and b) one or more compounds of general formula (II):in which R2and R3are independently selected from branched and unbranched alkyl residues with 4-12 carbon atoms. Also disclosed are a molding composition, use of a plasticising composition, use of a molding compound.EFFECT: present invention is based on the task of providing a plasticising composition which does not cause toxicological concerns, containing at least one polyester plasticiser for thermoplastic polymers and elastomers, which has high compatibility with polymer to be plasticized and in this regard during use is not inclined or only slightly tends to sweat, due to which elastic properties of polymers plasticized using such plasticisers are preserved for long periods of time.18 cl, 2 tbl, 2 dwg Изобретение относится к пластифицирующей композиции, содержащей по меньшей мере один полимерный сложный эфир дикарбоновой кислоты и по меньшей мере один сложный диалкиловый эфир терефталевой кислоты, к формовочным массам, содержащим термопластичный полимер или эластомер и указанную пластифицирующую композицию, а также к применению указанных пластифицирующих композиций и формовочных масс. Описана пластифицирующая композиция для термопластичного полимера, выбранного из поливинилхлорида (ПВХ), поливинилбутир