Frozen organic peroxide emulsion
AssigneePPG Industries, Inc.
InventorsJames A. Barter, Henry C. Stevens, John F. Van Hoozer
Life of this patent
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Abstract
A solid, frozen organic peroxide emulsion comprising from 30 to 75 weight percent organic peroxide, an emulsifying amount of surfactant(s) and the remainder water is described. Organic peroxides described include: dialkyl peroxydicarbonates, e.g., di-secondarybutyl peroxydicarbonate, diacyl peroxides, e.g., diisobutyryl peroxide, and acyl sulfonyl peroxides, e.g., acetylcyclohexylsulfonyl peroxide. The surfactant can be anionic, cationic, or nonionic, preferably nonionic, or mixtures of compatible surfactants.
Claims20
A frozen organic peroxide aqueous emulsion comprising (a) from 30 to 75 weight percent of organic peroxide selected from the group. ##EQU1## wherein R.sub.1 is an aliphatic radical of from 1 to 20 carbon atoms or an aromatic radical of from 6 to 8 carbon atoms, ##EQU2## wherein R.sub.2 is an aliphatic radical of from 1 to 20 carbon atoms or an aromatic radical of from 6 to 8 carbon atoms, ##EQU3## wherein R.sub.3 is an aliphatic radical of from 4 to 12 carbon atoms or a cycloaliphatic radical of from 3 to 10 carbon atoms, and ##EQU4## wherein R' is an aliphatic radical of from 2 to 12 carbon atoms and R" is an aliphatic radical of from 1 to 8 carbon atoms, (b) an emulsifying amount of water soluble surfactant, and (c) the remainder water.
A frozen organic peroxide aqueous emulsion comprising (a) from 35 to 55 weight percent of organic peroxide selected from the group. ##STR6## wherein R.sub.1 is an aliphatic radical containing from 2 to 8 carbon atoms, ##STR7## wherein R.sub.2 is an aliphatic radical of from 1 to 4 carbon atoms, ##STR8## wherein R.sub.3 is an aliphatic radical of from 4 to 12 carbon atoms or a cycloaliphatic radical of from 3 to 6 carbon atoms, and ##STR9## wherein R' is an aliphatic radical of from 5 to 10 carbon atoms and R" is the tertiarybutyl radical, (b) an emulsifying amount of water soluble surfactant, and (c) the remainder water.
A frozen peroxydicarbonate ester aqueous emulsion comprising (a) from 35 to 55 weight percent of peroxydicarbonate ester represented by the formula, ##STR11## wherein R.sub.1 is an aliphatic radical of from 2 to 8 carbon atoms, (b) from about 3 to 7 weight percent of non-ionic water soluble surfactant, and (c) the remainder water, the frozen emulsion being a dispersion of finite globules or particles of peroxydicarbonate ester within a continuous frozen aqueous matrix.
Dependencies are inferred from the claim text.