Patent ID: 7645798

Claim:
A compound of general formula (1) A-X-(A) m wherein A= m=0 or 1; when m=0, X=R′″, where R′″ is an aliphatic, cycloaliphatic, or arylaliphatic radical having C 1 -C 18 ; when m=1, X=—(CH 2 ) n —, where n is an integer comprised between 1 and 20; R is chosen among H and alkyl radicals C 1 -C 8 , possibly substituted with halogen atoms; R′ is an aliphatic, cycloaliphatic, or arylaliphatic radical, having C 1 -C 18 ; R″ is chosen among H, aliphatic, cycloaliphatic, or arylaliphatic radical having C 1 -C 18 .