| abstract |
The invention relates to a nucleating agent of formula (I)n nwherein residues R 1 and R 2 are independently selected from substituted phenyl groups, wherein the substituents of said substituted phenyl groups are independently from each other selected from the group consisting of (C 1 -C 4 )-alkyl-; and wherein R 3 is a -C(O)OR4, -C(O)NR 4 R 5 , or -C(O)-NR 7 -NR 5 R 6 residue, wherein R 4 , R 5 , R 6 , and R 7 are independently from each other hydrogen or (C 1 -C 4 )-alkyl-. |