Peroxide stabilizers

Patent metadata

Field	Value
Publication number	US-10858249-B2
Application number	US-201715815977-A
Country	US
Kind code	B2
Filing date	Nov 17, 2017
Priority date	Nov 21, 2016
Publication date	Dec 8, 2020
Grant date	Dec 8, 2020

Abstract

Methods for stabilizing one or more peroxide compounds in solution comprising adding to the solution an effective amount of at least one compound selected from the group comprising (i) cyclic carbonates; (ii) poly-phosphonic acid chelating agents and salts thereof, and alkaline pH adjusting agents with a pKb value of up to 3.0, wherein the w/w ratio of the poly-phosphonic acid chelating agent or salt thereof to alkali or alkaline earth metal hydroxide is from about 1:1 to about 50:1; and (iii) mixtures thereof. Also disclosed are solutions comprising the above compounds, uses of the above compounds to stabilize peroxide compounds in solutions, and compounds recited above for use as novel stabilizers.

First claim

The invention claimed is:

1. A method of stabilizing a peroxide compound in a solution, the method comprising adding to the solution an effective amount of glycerol carbonate, wherein the stability of the peroxide compound is enhanced through the addition of the glycerol carbonate.

2. The method of claim 1 , wherein the solution is free of quaternary ammonium compounds.

3. The method of claim 1 , wherein the peroxide compound comprises hydrogen peroxide, hydrogen peroxide adducts, group IIIA oxidizing agents, hydrogen peroxide donors of group VIA oxidizing agents, group VA oxidizing agents, group VIIA oxidizing agents, sodium peroxide, urea peroxide, perboric acid, sodium perborate, potassium perborate, sodium persulfate, calcium peroxide, lithium peroxide, sodium peroxide, dibenzoyl peroxide, diacetyl peroxide, di(n-propyl) peroxydicarbonate, butyl peroxybenzoate, butyl hydroperoxide, ethylidene peroxide, ethyl hydroperoxide, peroximonosulfuric acid, peroxycarboxylic acid, percarbonate, perbenzoic acid, cumene peroxide, or mixtures thereof.

4. The method of claim 3 , wherein the peroxide compound is selected from the group consisting of hydrogen peroxide, percarbonate, perborate, persulfate, perphosphate, peroximonosulfuric acid, peroxycarboxylic acids, or mixtures thereof.

5. The method of claim 4 , wherein the peroxide compound is hydrogen peroxide.

6. The method of claim 1 , wherein the solution further comprises a solvent selected from water, propylene glycol derivatives with ethoxylation, propylene glycol derivatives with propoxylation, alkoxytriglycols, propylene glycol methyl ether acetate, dipropylene glycol methyl ether acetate, dipropylene glycol n-butyl ether, propylene glycol n-butyl ether, dipropylene glycol n-propyl ether, propylene glycol n-propyl ether, dipropylene glycol methyl ether, tripropylene glycol methyl ether, benzyl alcohol, phenoxyethanol, phenethyl alcohol, methanol, ethanol, butyl 3-hydroxybutyrate, isopropyl alcohol, ethylhexylglycerol, branched diols, unbranched diols, charged non-surfactant emulsifying agents, uncharged non-surfactant emulsifying agents, dibasic esters, polar protic solvents, polar aprotic solvents, or mixtures thereof.

7. The method of claim 1 , wherein the peroxide compound is present in the solution at a concentration of from 0.05 wt % to 49 wt % based on total weight of the solution.

8. The method of claim 1 , wherein the pH of the solution is up to 10.

9. The method of claim 1 , wherein the pH of the solution is up to 6.

10. The method of claim 1 , wherein the pH of the solution is from 0.1 to 14.

Assignees

• Diversey Inc

Inventors

• Ahmadpour Faraz

Classifications

• C01B15/123

  Stabilisation of the solid compounds, subsequent to the preparation or to the crystallisation, by additives or by coating · CPC title

• C07F9/386

  containing hydroxy substituents in the hydrocarbon radicals · CPC title

• C07F9/3808

  Acyclic saturated acids which can have further substituents on alkyl · CPC title

• C07D317/38

  Ethylene carbonate · CPC title

• C01D1/04

  Hydroxides · CPC title