Patent ID: 8476386

Claim:
A branched poly(amino ester) compound having the formula: wherein x is an integer between 1 and about 10,000; each of R 1 , R 2 and R 3 is independently selected from the group consisting of hydrogen and hydrocarbyl; each of R 4 , R 5 , R 6 , R 7 , R 8 and R 9 is independently selected from the group consisting of hydrogen and hydrocarbyl and alkyl; each of L 1 and L 2 is N(—R 13 —)(—R 14 —)Z, wherein each of R 13 and R 14 is bonded to N and Z to form a cyclic structure, and wherein each of R 10 , R 11 , R 13 and R 14 is independently an optionally substituted C 1-30 alkylene; and each Z is independently selected from the group consisting of N, and CH, with the proviso that R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R 8 , R 9 and R 12 cannot have a primary amino group, a secondary amino group, or a carbon-carbon double bond conjugated to a carbonyl group; Y 1 is selected from the group consisting of (alkylene) 3 CR c , wherein each R c is independently selected from the group consisting of alkyl and aryl; A is selected from the group consisting of optionally substituted piperazinyl, optionally substituted piperidinyl, optionally substituted azetidinyl, optionally substituted pyrrolidinyl, N-methyl piperazinyl, N-ethyl piperazinyl, and 1-methyl-4-methylamino-piperidinyl, and benzyl-1-piperazinyl carboxylate; and each of B 1 and B 2 is independently selected from the group consisting of H and hydrocarbyl.