Patent ID: 8603493

Claim:
A branched carbosilane dendrimer with terminal moieties at ends of their branches which contain primary, secondary, tertiary or quaternary amino groups, and said carbosilane dendrimer is described by any one of the formulas: or by the corresponding analogous formulas in the case of later generations, wherein the formula corresponding to later generation (i) results from substituting X p in the formula corresponding to the previous generation (i−1) by a new block of the type: passing the group bound to the same silicon atom as this substitutory block from being represented by (R i−1 ) 3-p to being represented by (R i−1 ) 3-z , formulas, and wherein: Alq 1 , Alq 2 , Alq 3 , . . . , Alq i−1 , Alq i represent alkylene moieties of 2 to 4 carbons which are chosen independently from one another according to the length of the branches in each generation; R 1 , R 2 , R 3 , . . . , R i−1, R i each independently represent methyl and/or phenyl; X is a moiety comprising at least one primary, secondary, tertiary or quaternary amino group; p and m, n, . . . , z are each independently as integer of 1 to 3; and wherein the terminal moiety of the branches comprising at least one amino group is bound to the dendrimer by (1) an —O— group formed from the —OH group of an alcohol-amine; or by (2) a —CH 2 — group formed from a terminal carbon which was forming part of a carbon-carbon double bond in a compound which contains at least one amino group with which the dendrimer is made to react to produce terminal moieties of branches.