Compositions containing Guerbet lanolin esters and free lanolin alcohol useful in personal care applications
View Patent ↗The present invention relates to the cosmetic use of certain esters, prepared by the reaction of a Guerbet alcohol and lanolin. The result is a cosmetically elegant ester and lanolin alcohol which is a highly functional material in skin care. These compositions provide conditioning effects when applied to the hair and skin.
1. A composition made by the trans esterification reaction of a Guerbet alcohol conforming to the following structure:
wherein;
a is an integer ranging from 3 to 11;
b is an integer ranging from 5 to 19, with the proviso that b=a+2;
and lanolin, wherein said trans esterification reaction is carried out at a temperature of between 180° C. and 200° C.
2. A composition of claim 1 wherein a is 3 and b is 5.
3. A composition of claim 1 wherein a is 7 and b is 9.
4. A composition of claim 1 wherein a is 9 and b is 11.
5. A composition of claim 1 wherein a is 11 and b is 13.
6. A process for conditioning hair and skin, which comprises contacting the hair or skin with an effective conditioning concentration of a composition made by the esterification reaction of a Guerbet alcohol conforming to the following structure:
wherein
a is an integer ranging from 3 to 11;
b is an integer ranging from 5 to 19, with the proviso that b=a+2;
with lanolin, wherein said esterification reaction is carried out at a temperature of between 180° C. and 200° C.
7. A process of claim 6 wherein a is 3 and b is 5.
8. A process of claim 6 wherein a is 7 and b is 9.
9. A process of claim 6 wherein a is 9 and b is 11.
10. A process of claim 6 wherein a is 11 and b is 13.