US-12622862-B2 - Hair conditioner formulation

US12622862B2US 12622862 B2US12622862 B2US 12622862B2US-12622862-B2

Abstract

A hair conditioner formulation is provided, comprising: a dermatologically acceptable vehicle; and a conditioning polymer, wherein the conditioning polymer is a dextran polymer crosslinked with a dextran crosslinking agent of formula (I) wherein X is a halogen; wherein each R 1 is independently selected from a substituted or unsubstituted C 1-6 alkyl group; wherein each R 2 is independently selected from the group consisting of a C 1-6 alkanediyl group; wherein Y is a divalent bridging group.

Inventors

Nisaraporn Suthiwangcharoen
Lyndsay M. Leal
MICHAELEEN PACHOLSKI
Shannon Golden
Emmett M. Partain, III

Assignees

DOW GLOBAL TECHNOLOGIES LLC
DOW SILICONES CORPORATION
ROHM AND HAAS COMPANY

Dates

Publication Date: 20260512
Application Date: 20220309

Claims (10)

1 . A hair conditioner formulation, comprising: a dermatologically acceptable vehicle; and a conditioning polymer, wherein the conditioning polymer is a dextran polymer crosslinked with a dextran crosslinking agent of formula (I) wherein X is a halogen; wherein each R 1 is independently selected from a substituted or unsubstituted C 1-6 alkyl group; wherein each R 2 is independently selected from the group consisting of a C 1-6 alkanediyl group; wherein Y is a divalent bridging group.
2 . The hair conditioner formulation of claim 1 , wherein the hair conditioner formulation contains less than 0.01 wt %, based on 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 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 rinse off conditioner formulation and a leave in conditioner formulation.
5 . The hair conditioner formulation of claim 4 , wherein the hair conditioner formulation is a rinse off conditioner formulation.
6 . The hair conditioner 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 conditioner formulation of claim 6 , wherein the dextran crosslinking agent of formula (I) is selected from the group consisting of and mixtures thereof.
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.

Description

The present invention relates to a hair conditioner formulation. In particular, the present invention relates to a hair conditioner formulation, comprising: a dermatologically acceptable vehicle; and a conditioning polymer, wherein the conditioning polymer is a dextran polymer crosslinked with a dextran crosslinking agent of formula (I) wherein X is a halogen; wherein each R1 is independently selected from a substituted or unsubstituted C1-6 alkyl group; wherein each R2 is independently selected from the group consisting of a C1-6 alkanediyl group; wherein Y is a divalent bridging group. Conventional hair conditioners are popular with consumers for treating hair. Silicone based conditioning agents are the most commonly used conditioning agent in hair conditioner formulations. However, there are growing concerns among some consumers regarding the persistence and potential toxicity of certain silicone based conditioning agents in the environment, particularly for D4 and D5 conditioners. Accordingly, there has been a growing interest in the development of silicone-free alternative conditioning agents for use in hair conditioner formulations. In U.S. Pat. No. 5,879,670, Melby et al disclose a non-silicon containing amphyolyte polymer for use as a conditioning agent for treatment of a keratin-containing substrate. In particular, Melby et al disclose novel conditioning polymer containing (meth)acrylamidopropyltrimethyl ammonium chloride, meth(acrylic acid) or 2-(meth)acrylamido-2-methylpropane sulfonic acid and, optionally, a C1-22 alkyl (meth)acrylate and the use thereof in a cosmetically acceptable medium for the treatment of a keratin-containing substrate. Notwithstanding, there is a continuing need for new hair conditioning agents that provide conditioning benefits. There is also a continuing need for new hair conditioning agents having an increased natural origin index (IS016128) when compared with conventional hair conditioning agents. The present invention provides a hair conditioner formulation, comprising: a dermatologically acceptable vehicle; and a conditioning polymer, wherein the conditioning polymer is a dextran polymer crosslinked with a dextran crosslinking agent of formula (I) wherein X is a halogen; wherein each R1 is independently selected from a substituted or unsubstituted C1-6 alkyl group; wherein each R2 is independently selected from the group consisting of a C1-6 alkanediyl group; wherein Y is a divalent bridging group. The present invention provides a hair conditioner formulation, comprising: a dermatologically acceptable vehicle; and a conditioning polymer, wherein the conditioning polymer is a dextran polymer crosslinked with a dextran crosslinking agent of formula (I) wherein X is a halogen; wherein each R1 is independently selected from a substituted or unsubstituted C1-6 alkyl group; wherein each R2 is independently selected from the group consisting of a C1-6 alkanediyl group; wherein Y is a divalent bridging group; and wherein the hair conditioner formulation contains less than 0.01 wt %, based on weight of the hair conditioner formulation, of a dermatologically acceptable oil. The present invention provides a hair conditioner formulation, comprising: a dermatologically acceptable vehicle; and a conditioning polymer, wherein the conditioning polymer is a dextran polymer crosslinked with a dextran crosslinking agent of formula (I) wherein X is a halogen; wherein each R1 is independently selected from a substituted or unsubstituted C1-6 alkyl group; wherein each R2 is independently selected from the group consisting of a C1-6 alkanediyl group; wherein Y is a divalent bridging group; and wherein the hair conditioner formulation contains less than 0.1 wt %, based on weight of the hair conditioner formulation, of silicon containing molecules. The present invention provides a hair conditioner formulation, comprising: a dermatologically acceptable vehicle; and a conditioning polymer, wherein the conditioning polymer is a dextran polymer crosslinked with a dextran crosslinking agent of formula (I) wherein X is a halogen; wherein each R1 is independently selected from a substituted or unsubstituted C1-6 alkyl group; wherein each R2 is independently selected from the group consisting of a C1-6 alkanediyl group; wherein Y is a divalent bridging group; wherein the hair conditioner formulation contains less than 0.01 wt %, based on weight of the hair conditioner formulation, of a dermatologically acceptable oil; and wherein the hair conditioner formulation contains less than 0.1 wt %, based on weight of the hair conditioner formulation, of silicon containing molecules. The present invention provides a method of conditioning mammalian hair, comprising: selecting a hair conditioner formulation of the present invention; and applying the hair conditioner formulation to mammalian hair. DETAILED DESCRIPTION We have surprisingly found that dextran polymer crosslinked with a dextran crosslinking agent