HAIRSPRAY FORMULATIONS FOR HFO PROPELLANTS
The present disclosure provides a formulation comprising a fluoroolefin, an amine neutralizer, a fixative polymer, and a solvent. The formulation may be trans-1,3,3,3-tetrafluoropropene (HFO-1234ze(E)), and the amine neutralizer may be triethanolamine (TEA), triisopropanolamine (TIPA), or a mixture thereof. The formulation may be suitable for use as a personal care product, such as a hair spray.
1 . A formulation comprising:
a fluoroolefin of the formula
wherein R 1 is hydrogen or fluorine;
R 2 is hydrogen or fluorine;
R 3 is hydrogen or fluorine;
a solvent;
an amine neutralizer; and
a fixative polymer.
2 . The formulation of claim 1 , wherein the fluoroolefin has a GWP, as measured in carbon dioxide (CO 2 ) equivalents, of 10 or less.
3 . The formulation of claim 1 , wherein the fluoroolefin comprises trans-1,3,3,3-tetrafluoropropene (HFO-1234ze(E)).
4 . The formulation of claim 1 , wherein the solvent comprises ethanol.
5 . The formulation of claim 1 , wherein the amine neutralizer comprises an amine that is unreactive towards trans-1,3,3,3-tetrafluoropropene (HFO-1234ze(E)) as determined by detection of fluoride via an ion-selective electrode.
6 . The formulation of claim 1 , wherein the amine neutralizer comprises a tertiary amine.
7 . The formulation of claim 1 , wherein the amine neutralizer comprises triethanolamine (TEA), triisopropanolamine (TIPA), or a mixture thereof.
8 . The formulation of claim 1 , further comprising at least one of one or more co-propellants and one or more co-solvents.
9 . The formulation of claim 1 , further comprising one or more additives selected from the group consisting of lubricants, stabilizers, corrosion inhibitors, fragrances, starches, and performance modifiers.
10 . The formulation of claim 1 , wherein the fixative polymer is selected from the group consisting of acrylate-octylacrylamide copolymers, vinyl acetate-crotonate-vinyl neodecanoate co-polymers, and octylacrylamide-acrylate-butylaminoethyl-methacrylate copolymers.
11 . The formulation of claim 1 , wherein the fluoroolefin is present in the formulation in an amount of 10 wt.% to 90 wt.% based on the total weight of the formulation.
12 . The formulation of claim 1 , wherein the solvent is present in an amount of 10 wt.% to 90 wt.% based on the total weight of the formulation.
13 . The formulation of claim 1 , wherein the amine neutralizer is present in the formulation in an amount of 0.2 wt.% to 1.5 wt.% based on the total weight of the formulation.
14 . The formulation of claim 1 , wherein the fixative polymer is present in the formulation in an amount of 1 wt.% to 15 wt.% based on the total weight of the formulation.
15 . A personal care formulation comprising the formulation of claim 1 .
16 . The personal care formulation of claim 15 , wherein the formulation is an aerosol.
17 . The personal care formulation of claim 15 , wherein the formulation is a hairspray.
18 . A method, comprising applying the formulation of claim 17 to hair.
19 . The formulation of claim 1 , wherein the formulation includes less than 300 ppm fluoride as determined by ion-selective electrode following storage of the formulation in a sealed container at 50° C. for a period of three months.
20 . A method of preparing the formulation of claim 1 , comprising:
contacting the polymer with the solvent;
adding the amine neutralizer; and
adding the propellant.