Stabilisation of body-care and household products

1. A method of preventing photooxidation and autooxidation processes in body-care products selected from body oils, body lotions and body gels,

which method comprises incorporating by dissolution in an oil phase or alcoholic or water phase, into said body-care products one or more phenolic antioxidants of formula (1)

wherein

R 1 is a tert-butyl radical or is C 1 -C 22 alkyl and

R 2 is tert-butyl radical;

Q is a radical of formula

T is —C n H 2n —;

a is 0, 1 or 2;

b is 1;

d is 0 or 1;

e is an integer from 1 to 3;

f is an integer from 1 to 3;

m, n and p are each independently of one another an integer from 1 to 3;

if e=1, then

R 3 is; C 1 -C 22 alkyl or (1f)

if e=2, then

R 3 is a direct bond, —CH 2 —, S or

and

if e=3, then

R 3 is the radical of formula

c is 0;

where the antioxidants are incorporated in a concentration of 50 to 1000 ppm, with the proviso that the body-care product contains an aqueous or aqueous/alcoholic phase.

2. A method according to claim 1 ,

wherein

R 1 and R 2 are the tert-butyl radical;

R 3 is a direct bond;

m is 1 to 3;

d is 0 and

e is 2.

3. A method according to claim 1 , which comprises incorporating the phenolic antioxidants of formula (I) as individual compounds or as a mixture of several individual compounds.

4. The method according to claim 1 which body care product further comprises tocopherol and/or tocopherol acetate.

5. The method according to claim 1 , which body care product further comprises light stabilisers.

6. The method according to claim 5 , wherein the light stabilisers are sterically hindered amines.

7. The method according to claim 5 , wherein the light stabilisers used are benzotriazoles of formula

wherein

R 6 is C 1 -C 12 alkyl; C 1 -C 5 alkoxy; C 1 -C 5 alkoxycarbonyl; C 5 -C 7 cycloalkyl; C 6 -C 10 aryl; aralkyl; —SO 3 M; a radical of formula ( . . . a)

R 8 and R 9 are each independently of the other hydrogen; or C 1 -C 5 alkyl;

m is 1 or 2;

n is 0 or 1;

if m=1,

R 7 is hydrogen; unsubstituted or phenyl-substituted C 1 -C 12 alkyl; C 6 -C 10 aryl;

if n=2,

R 2 is a direct bond; —(CH 2 ) p —; and

p is 1 to 3.

8. The method according to claim 5 , wherein the light stabilisers are 2-hydroxyphenyltriazines of formula

wherein

L 1 is C 1 -C 22 alkyl, C 2 -C 22 alkenyl or C 5 -C 7 cycloalkyl;

L 2 and L 6 are each independently of the other H, OH, halogen, C 1 -C 22 alkyl, halomethyl;

L 3 , L 5 and L 7 are each independently of one another H, OH, OL 1 , halogen, C 1 -C 22 alkyl, halomethyl;

L 4 is H, OH, OL 1 , halogen, C 1 -C 22 alkyl, phenyl, halomethyl;

L 12 is C 1 -C 22 alkyl, phenyl C 1 -C 5 alkyl, C 5 -C 7 cycloalkyl, OL 1 or, preferably, a group of formula

j is 0, 1, 2 or 3.

9. The method according to claim 1 , wherein the body-care products are for the skin and its adnexa.

10. The method according to claim 1 , wherein the body-care products are selected from skin-care products, bath and shower additives, preparations containing fragrances and odoriferous substances, hair-care products, dentifrices, deodorising and antiperspirant preparations, decorative preparations, light protection formulations and preparations containing active ingredients.

11. The method according to claim 1 , wherein the body care product further contains fragrances, olfactory substances and/or an oil selected from group consisting of fatty alcohols, fatty acids and liquid to solid waxes.

12. the method according to claim 1 , wherein the phenolic antioxidant of formula 1 is selected from the group consisting of