US 12,257,336 B2
Cosmetic composition comprising a polyhydroxyalkanoate in an oily medium
Julien Portal, Aulnay-sous-Bois (FR); and Romain Garcon, Aulnay-sous-Bois (FR)
Assigned to L'OREAL, Paris (FR)
Appl. No. 17/291,717
Filed by L'OREAL, Paris (FR)
PCT Filed Dec. 20, 2019, PCT No. PCT/EP2019/086809
§ 371(c)(1), (2) Date May 6, 2021,
PCT Pub. No. WO2020/128050, PCT Pub. Date Jun. 25, 2020.
Claims priority of application No. 1873652 (FR), filed on Dec. 20, 2018.
Prior Publication US 2022/0008317 A1, Jan. 13, 2022
Int. Cl. A61K 8/85 (2006.01); A61K 8/34 (2006.01); A61K 8/92 (2006.01); A61Q 1/06 (2006.01); A61Q 1/10 (2006.01)
CPC A61K 8/85 (2013.01) [A61K 8/34 (2013.01); A61K 8/922 (2013.01); A61Q 1/06 (2013.01); A61Q 1/10 (2013.01); A61K 2800/34 (2013.01); A61K 2800/591 (2013.01); A61K 2800/85 (2013.01)] 21 Claims
 
1. A composition comprising:
a) a film-forming polyhydroxyalkanoate copolymer comprising the following polymeric units A, B and C:
—[—O—CH(R1)-CH2—CO—]— unit A
—[—O—CH(R2)-CH2—CO—]— unit B
—[—O—CH(R3)-CH2—CO—]— unit C
in which:
R1 denotes a linear alkyl radical having from 5 to 9 carbon atoms;
R2 denotes a linear alkyl radical having a carbon number corresponding to the number of carbon atoms of the R1 radical −2;
R3 denotes a linear alkyl radical having a carbon number corresponding to the number of carbon atoms of the R1 radical −4;
the molar percentage of unit A being greater than the molar percentage of unit B and greater than the molar percentage of unit C; and wherein the unit A is present in a molar percentage ranging from 40% to 97.5%, the unit B is present in a molar percentage ranging from 2% to 40% and the unit C is present in a molar percentage ranging from 0.5% to 20%, with respect to all of the units A, B and C; and
b) an oily medium comprising a non-silicone oil chosen from:
ester oils, carbonate oils,
branched nonpolar hydrocarbon oils having from 8 to 14 carbon atoms, as a mixture with a monoalcohol having from 2 to 6 carbon atoms according to a monoalcohol/branched nonpolar hydrocarbon oil ratio by weight ranging from 1/99 to 10/90; and
when the polymer is such that the R1 alkyl group has from 6 to 9 carbon atoms, the non-silicone oil is also chosen from nonpolar hydrocarbon oils having from 8 to 14 carbon atoms in the absence of monoalcohol having from 2 to 6 carbon atoms;
when the polymer is such that the R1 alkyl group comprises 9 carbon atoms, the non-silicone oil is also chosen from hydrogenated polyisobutylenes.