The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 24, 2009
Filed:
Mar. 28, 2003
Chika Itoh, Kanagawa, JP;
Kazuhiro Kubo, Kanagawa, JP;
Syunsuke Ohhashi, Kanagawa, JP;
Tohru Yasukohchi, Kanagawa, JP;
Hiroshi Kikuchi, Tokyo, JP;
Norio Suzuki, Chiba, JP;
Miho Takahashi, Fujieda, JP;
Hitoshi Yamauchi, Tokyo, JP;
Chika Itoh, Kanagawa, JP;
Kazuhiro Kubo, Kanagawa, JP;
Syunsuke Ohhashi, Kanagawa, JP;
Tohru Yasukohchi, Kanagawa, JP;
Hiroshi Kikuchi, Tokyo, JP;
Norio Suzuki, Chiba, JP;
Miho Takahashi, Fujieda, JP;
Hitoshi Yamauchi, Tokyo, JP;
NOF Corporation, Tokyo, JP;
Daiichi Pharmaceutical Co., Ltd., Tokyo, JP;
Abstract
A phospholipid derivative represented by the formula (1) (Z represents a residue of a compound having 3 to 10 hydroxyl groups; AO represents an oxyalkylene group having 2 to 4 carbon atoms; RCO and RCO represent an acyl group having 8 to 22 carbon atoms; X represents hydrogen atom, an alkali metal atom, ammonium or an organic ammonium; 'a' represents an integer of 0 to 4; 'b' represents 0 or 1; Q represents hydrogen atom or methyl group; m represents an average number of moles of the oxyalkylene group added; and m, k1, k2, and k3 are numbers satisfying the following conditions: 3≦m≦200, 9≦m×(k1+k2+k3)≦1000, 1≦k1≦2, 0≦k2≦9 and 0≦k3≦9, and 3≦k1+k2+k3≦10), which is highly safe for living bodies, and is suitably used for solubilization and dispersion of physiologically active substances and the like, or in the fields of drug delivery systems such as liposomes and cosmetics.