| abstract |
The present invention relates to the use of compositions of aliphatic esters having the general formula as plasticizers for polymeric compositions: R 1 -OC (O) -R 4 -C (O) - [- OR 2 -OC (O) -R 5 -C (O) -] m -OR 3 Where: R 1 is selected from one or more of the group consisting of H, linear and branched, saturated and unsaturated alkyl residues of the C 1 -C 24 type, and polyol residues esterified with C 1 -C 24 monocarboxylic acids; R 2 comprises -CH 2 -C (CH 3 ) 2 -CH 2 - and C 2 -C 8 alkylene groups, and at least 50 mol% of the -CH 2 -C (CH 3 ) 2 -CH 2 - groups Include; R < 3 > is selected from one or more of the group consisting of H, linear and branched, saturated and unsaturated alkyl residues of the C 1 -C 24 type, and polyol residues esterified with C 1 -C 24 monocarboxylic acids; R 4 and R 5 comprise at least one C 2 -C 22 alkylene and comprise at least 50 mol% C 7 alkylene; m is from 1 to 20; These esters are particularly suitable for use as a plasticizer for various types of polymers, such as vinyl polymers of the polyvinyl chloride (PVC) type, thermoplastic elastomers, and hydroxy acid polyesters, for example, lactic acid. |