申请人:NOF CORPORATION
公开号:US20190110986A1
公开(公告)日:2019-04-18
The present invention provides an O/W type emulsion having a volume median diameter of not more than 100 nm and containing a compound represented by the formula (1)
wherein X
a
and X
b
are each independently X
1
, X
2
or a 1,4-piperazinediyl group;
s is 1 or 2,
R
4
is an alkyl group having 1-6 carbon atoms,
n
a
and n
b
are each independently 0 or 1,
R
1a
, R
1b
, R
2a
and R
2b
are each independently an alkylene group having 1-6 carbon atoms,
Y
a
and Y
b
are each independently an ester bond, or the like, and
R
3a
and R
3b
are each independently a liposoluble vitamin residue or the like.
本发明提供了一种体积中值直径不超过100纳米的O/W型乳液,其含有由式(1)表示的化合物,
其中X
a
和X
b
分别独立地为X
1
、X
2
或1,4-哌嗪二基基团;
s为1或2,
R
4
为具有1-6个碳原子的烷基基团,
n
a
和n
b
分别独立地为0或1,
R
1a
、R
1b
、R
2a
和R
2b
分别独立地为具有1-6个碳原子的烷基基团,
Y
a
和Y
b
分别独立地为酯键,或类似物,以及
R
3a
和R
3b
分别独立地为脂溶性维生素残基或类似物。