Disclosed is the use of benzotropolone derivatives of formula
wherein
R
1
, R
2
and R
7
independently from each other are hydrogen; C
1
-C
3
alkyl; or COR
8
;
R
3
is hydrogen; or COOR
9
R
4
is hydrogen; or C
1
-C
3
alkyl;
R
5
is hydrogen; hydroxy; C
1
-C
3
-alkoxy; or —O—(CO)—R
10
;
R
6
is hydrogen; C
1
-C
3
alkyl; or COR
8
; or
R
5
and R
6
together may form a five or six membered ring; or
R
6
and R
7
together form a five or six membered ring; and
R
8
, R
9
, R
10
independently of each other are C
1
-C
30
alkyl;
for protecting body-care and household products from photolytic and oxidative degradation.
本发明揭示了利用公式中的苯并三酮衍
生物,其中R1、R2和R7各自独立地为氢;C1-C3烷基;或COR8;R3为氢;或COOR9;R4为氢;或C1-C3烷基;R5为氢;羟基;C1-C3-烷氧基;或—O—(CO)—R10;R6为氢;C1-C3烷基;或COR8;或R5和R6可共同形成五元或六元环;或R6和R7可共同形成五元或六元环;以及R8、R9、R10各自独立地为C1-C30烷基;用于保护身体护理和家用产品免受光解和氧化降解的影响。