Patent ID: 8889771

Claim:
A method of plasticizing a plastic, comprising: adding a plasticizer to the plastic, wherein the plasticizer comprises a molecule with an average molecular mass of greater than 500 g/mol, wherein the molecule comprises at least one associative group comprising a nitrogenous heterocycle; wherein the molecule comprising at least one associative group is a supramolecular polymer obtained by reacting at least one compound A with at least one compound B; wherein compound A comprises a mixture of fatty acid trimer and a linear or branched alkyldicarboxylic acid is selected from the group consisting of glutaric acid, adipic acid, pimelic acid, suberic acid, azelaic acid, sebacic acid, undecanedioic acid, dodecanedioic acid, brassylic acid, tetradecanedioic acid, pentadecanedioic acid, thapsic acid, octadecanedioic acid, and 3,3-dimethylglutaric acid; wherein compound B is selected from the group consisting of a compound of formulae (B1) to (B4): wherein: R is a unit comprising at least one reactive function; R′ is a hydrogen atom; R″, R 1 and R 2 are chosen from a C 1 to C 50 alkyl group; and A is chosen from an oxygen atom, a sulfur atom, and a NH group.