Patent ID: 11952351
Assignee: KABUSHIKI KAISHA TOSHIBA
Field: Pharmaceuticals (Chemistry)
Classification: CPC C  A | IPC A  C

Claim 0:
1. Lipid particles comprising a lipid compound represented by the formula (1):

Q-CHR2  (1)

wherein
Q is a nitrogen-containing aliphatic group containing two or more tertiary nitrogens but no oxygen, and
each R is independently an aliphatic group of C12 to C24, and is represented by the following formula (1-R):

-LR1-C(═O)—O-LR2  (1-R)

wherein
LR1 and LR2 are alkylene and alkenyl, respectively;
wherein the lipid particles contain
25 to 75 mol % of said lipid compound represented by the formula (1); and
1 to 10 mol % of a lipid capable of reducing aggregation,
based on the total number of moles of the lipids used for the lipid particles, respectively.