Hair conditioner
A hair conditioner formulation is provided, comprising: a dermatologically acceptable vehicle; and a conditioning polymer, wherein the conditioning polymer is a cationic dextran polymer, comprising a dextran polymer functionalized with quaternary ammonium groups; wherein the dextran polymer has a weight average molecular weight of 50,000 to 3,000,000 Daltons; wherein the quaternary ammonium groups are selected from the group consisting of quaternary ammonium moieties of formula (A) bound to a pendent oxygen on the dextran polymer wherein is a pendent oxygen on the dextran polymer; wherein X is a divalent linking group bonding the quaternary ammonium moiety to the pendent oxygen on the dextran polymer; wherein each R 2 is independently selected N from the group consisting of a C 1-3 alkyl group; and wherein each R 3 is independently selected from the group consisting of a linear or branched C 4-16 alkyl group.
1 . A hair conditioner formulation, comprising:
a dermatologically acceptable vehicle; and
a conditioning polymer, wherein the conditioning polymer is a cationic dextran polymer, comprising a dextran polymer functionalized with quaternary ammonium groups; wherein the dextran polymer has a weight average molecular weight of 50,000 to 3,000,000 Daltons; wherein the quaternary ammonium groups are selected from the group consisting of quaternary ammonium moieties of formula (A) bound to a pendent oxygen on the dextran polymer
wherein
is a pendent oxygen on the dextran polymer; wherein X is a divalent linking group bonding the quaternary ammonium moiety to the pendent oxygen on the dextran polymer; wherein each R 2 is independently selected from the group consisting of a C 1-3 alkyl group; and wherein R 3 is selected from the group consisting of a linear or branched C 8 alkyl group and a linear or branched C 12 alkyl group.
2 . The hair conditioner formulation of claim 1 , wherein the hair conditioner formulation contains less than 0.01 wt %, based on the total weight of the hair conditioner formulation, of a dermatologically acceptable oil.
3 . The hair conditioner formulation of claim 2 , wherein the hair conditioner formulation contains less than 0.1 wt %, based on the total weight of the hair conditioner formulation, of silicon containing molecules.
4 . The hair conditioner formulation of claim 3 , wherein the hair conditioner formulation is selected from the group consisting of a leave on conditioner, a rinse off conditioner and a conditioning shampoo.
5 . The hair conditioner formulation of claim 4 , wherein the hair conditioner formulation is a leave on conditioner.
6 . The hair conditioning formulation of claim 5 , wherein the cationic dextran polymer has a Kjeldahl nitrogen content corrected for ash and volatiles, TKN, of 0.5 to 5.0 wt %.
7 . The hair conditioning formulation of claim 6 , wherein R 3 is a linear or branched C 12 alkyl group.
8 . The hair conditioner formulation of claim 7 , further comprising a thickener.
9 . The hair conditioner formulation of claim 8 , further comprising a preservative.
10 . A method of conditioning mammalian hair, comprising:
selecting a hair conditioner formulation according to claim 1 ; and
applying the hair conditioner formulation to mammalian hair.