US3988261A
Expired / Lapsed
US
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Frozen organic peroxide emulsion
Assignee: PPG Industries Inc
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Filing: 1975-07-28
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Granted: 1976-10-26
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Expires: 1995-07-28
Abstract
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.
Inventors
- 👤 James A. Barter
- 👤 Henry C. Stevens
- 👤 John F. Van Hoozer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:31
CPC Classifications
C; C08; C08F; C08F4/00; C08F4/28; C08F4/32; C08F4/34
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
140 words
A frozen organic peroxide aqueous emulsion comprising (a) from 30 to 75 weight percent of organic peroxide selected from the group. ##EQU1## wherein R 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 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 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.
Claim 2
Dependent Claim
140 words
A frozen organic peroxide aqueous emulsion comprising (a) from 30 to 75 weight percent of organic peroxide selected from the group. ##EQU1## wherein R 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 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 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.
Claim 3
Dependent Claim
20 words
The frozen emulsion of claim 1 wherein the organic peroxide represents from 35 to 55 weight percent of the emulsion.
Claim 4
Dependent Claim
20 words
The frozen emulsion of claim 2 wherein the organic peroxide represents from 40 to 50 weight percent of the emulsion.
Claim 5
Dependent Claim
18 words
The frozen emulsion of claim 1 wherein from about 1 to 10 weight percent of surfactant is used.
Claim 6
Dependent Claim
11 words
The frozen emulsion of claim 1 wherein the surfactant is non-ionic.
Claim 7
Dependent Claim
12 words
The frozen emulsion of claim 5 wherein the surfactant is polyvinyl alcohol.
Claim 8
Dependent Claim
17 words
The frozen emulsion of claim 1 wherein the continuous phase of the emulsion is the aqueous phase.
Claim 9
Dependent Claim
111 words
A frozen organic peroxide aqueous emulsion comprising (a) from 35 to 55 weight percent of organic peroxide selected from the group. ##STR6## wherein R 1 is an aliphatic radical containing from 2 to 8 carbon atoms, ##STR7## wherein R 2 is an aliphatic radical of from 1 to 4 carbon atoms, ##STR8## wherein R 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.
Claim 10
Dependent Claim
111 words
A frozen organic peroxide aqueous emulsion comprising (a) from 35 to 55 weight percent of organic peroxide selected from the group. ##STR6## wherein R 1 is an aliphatic radical containing from 2 to 8 carbon atoms, ##STR7## wherein R 2 is an aliphatic radical of from 1 to 4 carbon atoms, ##STR8## wherein R 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.
Claim 11
Dependent Claim
22 words
The frozen emulsion of claim 8 wherein the organic peroxide represents from about 40 to about 50 weight percent of the emulsion.
Claim 12
Dependent Claim
38 words
The frozen emulsion of claim 8 wherein R 1 is ethyl, n-propyl, isopropyl, n-butyl, secondary butyl, isobutyl or 2-ethylhexyl; R 2 is methyl, isopropyl or tertiary butyl; R 3 is cyclohexyl; and ##STR10## is pivalyl, octanoyl or neodecanoyl.
Claim 13
Dependent Claim
19 words
The frozen emulsion of claim 8 wherein from about 3 to about 7 weight percent of surfactant is used.
Claim 14
Dependent Claim
13 words
The frozen emulsion of claim 11 wherein the surfactant is a non-ionic surfactant.
Claim 15
Dependent Claim
12 words
The frozen emulsion of claim 12 wherein the surfactant is polyvinyl alcohol.
Claim 16
Dependent Claim
14 words
The frozen emulsion of claim 11 wherein the surfactant is a water-soluble cellulose ether.
Claim 17
Dependent Claim
11 words
The frozen emulsion of claim 11 wherein the surfactant is gelatin.
Claim 18
Dependent Claim
14 words
The emulsion of claim 14 wherein the surfactant is sodium carboxymethylcellulose, hydroxyethylcellulose or methylcellulose.
Claim 19
Dependent Claim
18 words
The emulsion of claim 8 wherein the surfactant is sorbitan esters of C 12 -C 18 fatty acids.
Claim 20
Dependent Claim
23 words
The emulsion of claim 8 wherein the surfactant is selected from anionic surfactants, non-ionic surfactants or a combination of anionic and non-ionic surfactants.
Claim 21
Dependent Claim
74 words
A frozen peroxydicarbonate ester aqueous emulsion comprising (a) from 35 to 55 weight percent of peroxydicarbonate ester represented by the formula, ##STR11## wherein R 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.
Claim 22
Dependent Claim
74 words
A frozen peroxydicarbonate ester aqueous emulsion comprising (a) from 35 to 55 weight percent of peroxydicarbonate ester represented by the formula, ##STR11## wherein R 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.
Claim 23
Dependent Claim
12 words
The frozen emulsion of claim 19 wherein the surfactant is polyvinyl alcohol.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-10-26 | 1980-04-26 | 1980-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-10-26 | 1984-04-26 | 1984-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-10-26 | 1988-04-26 | 1988-10-26 | $7700.00 | Window Closed / Lapsed |