Photostable cationic organic sunscreen compounds and compositions obtained therefrom
申请人:——
公开号:US20040057911A1
公开(公告)日:2004-03-25
Compounds of Formula I
1
wherein
R, R
1
and R
2
are each independently hydrogen or linear or branched C
1
to C
10
alkyl, or linear or branched C
1
to C
10
alkoxy;
R
3
is selected from the group consisting of COCH
3
, CO
2
R
7
, CONH
2
, CON(R
8
)
2
, CN, COX(CH
2
)n-N—(R
4
)(R
5
)(R
6
), and the quaternized salt form of the formula COX(CH
2
)n-N—(R
4
)(R
5
)(R
6
)
+
Y
−
;
X is O or NH;
n is an integer of 1 to 5;
Y is an anion;
R
4
, R
5
and R
6
are independently linear or branched C
1
to C
30
alkyl; and
R
7
and R
8
are independently hydrogen or linear or branched C
1
-C
30
alkyl.
Sunscreen formulations containing compounds of Formula I, and methods for protecting hair, skin and substrates such as polymers, textiles, fabrics, leathers and paints using the compounds herein.