METHODS AND COMPOSITIONS FOR USE WITH GEL DISPENSERS
A method is provided for reducing the frequency of mis-directed output of hydroalchoholic gel from a dispenser. A method of reducing the formation of coagulated gel deposits, and dispensable hydroalchoholic gel compositions are also provided.
1 . A dispensable gel composition comprising:
at least 50 wt. % of a C 1-4 alcohol, based upon the total weight of the dispensable gel composition;
from 0.01 to 10 wt. % of a polyacrylate thickener, based upon the total weight of the dispensable gel composition;
glycerin; and
one or more neutralizers selected from the group consisting of sodium hydroxide, ammonium hydroxide, potassium hydroxide, arginine, tetrahydroxypropyl ethylenediamine, triethanolamine, tromethamine, and triisopropanolamine.
2 . The dispensable gel composition of claim 1 , wherein the C 1-4 alcohol is selected from the group consisting of ethanol, propanol, isopropanol, butanol, isobutanol, tertiary butanol, methanol, and mixtures thereof.
3 . The dispensable gel composition of claim 1 , wherein the polyacrylate thickener is selected from the group consisting of acrylates/C 10-30 alkyl acrylate crosspolymers, copolymers of acrylic acid and alkyl C5-C10 acrylate, copolymers of acrylic acid and maleic anhydride, carbomers, and mixtures thereof.
4 . The dispensable gel composition of claim 1 , wherein the dispensable gel composition has a viscosity of from 1,000 to 65,000 centipoise, when measured using RV or LV spindles at 22° C.
5 . The dispensable gel composition of claim 1 , wherein the dispensable gel composition comprises at least 60 wt. % of the C 1-4 alcohol.
6 . The dispensable gel composition of claim 1 , wherein the dispensable gel composition comprises at least 65 wt. % of the C 1-4 alcohol.
7 . The dispensable gel composition of claim 1 , wherein the polyacrylate thickener is a carbomer.
8 . The dispensable gel composition of claim 1 , further comprising a plug-preventing additive.
9 . The dispensable gel composition of claim 1 , wherein:
the C 1-4 alcohol comprises ethanol; and
the polyacrylate thickener comprises acrylates/C 10-30 alkyl acrylate crosspolymers.
10 . The dispensable gel composition of claim 1 , wherein the neutralizer consists of tetrahydroxypropyl ethylenediamine.
11 . A dispensable gel composition comprising:
at least 65 wt. % of a C 1-4 alcohol, based upon the total weight of the dispensable gel composition;
from 0.01 to 10 wt. % of a polyacrylate thickener, based upon the total weight of the dispensable gel composition;
glycerin; and
one or more neutralizers selected from the group consisting of sodium hydroxide, ammonium hydroxide, potassium hydroxide, arginine, tetrahydroxypropyl ethylenediamine, triethanolamine, tromethamine, and triisopropanolamine.
12 . The dispensable gel composition of claim 11 , wherein the neutralizer consists of tetrahydroxypropyl ethylenediamine.