US3983166A
Expired / Lapsed
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Monomeric emulsion stabilizers
Assignee: Kendall Co
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Filing: 1975-04-21
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Granted: 1976-09-28
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Expires: 1995-04-21
Abstract
Abstract A novel class of monomeric emulsion stabilizers is prepared by reacting certain quaternary ammonium halides with anionic surfactants. In polymerization reactions these stabilizers become a part of the polymer molecule, which is thereby self-stabilized in aqueous dispersion.
Inventors
- 👤 Carlos M. Samour
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 06:45
CPC Classifications
C; C08; C08F; C08F2/00; C08F2/12; C08F2/16; C08F2/22; C08F2/24; C08F2/26
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
115 words
A monomeric emulsion stabilizer capable of stabilizing the polymerization of ethylenically-unsaturated monomers in a copolymerization reaction, corresponding to the formula: ##EQU1##wherein V is selected from the group consisting of 4-hydroxymaleoyloxy and; -hydroxycitraconoyloxy radicals; A is an alkylene group selected from the class consisting of ethylene and propylene; R 1 , r 2 are methyl groups and R 3 is an acetamido group; and Y - R 4 is an acidic group selected from the class consisting of esters of sulfosuccinic acid, ##EQU2##wherein R 5 is an alkyl group of from 8 to 28 carbon atoms, and phenyl sulfonates wherein the phenyl group is substituted by an alkyl group of from 8 to 28 carbon atoms.
Claim 2
Dependent Claim
115 words
A monomeric emulsion stabilizer capable of stabilizing the polymerization of ethylenically-unsaturated monomers in a copolymerization reaction, corresponding to the formula: ##EQU1##wherein V is selected from the group consisting of 4-hydroxymaleoyloxy and; -hydroxycitraconoyloxy radicals; A is an alkylene group selected from the class consisting of ethylene and propylene; R 1 , r 2 are methyl groups and R 3 is an acetamido group; and Y - R 4 is an acidic group selected from the class consisting of esters of sulfosuccinic acid, ##EQU2##wherein R 5 is an alkyl group of from 8 to 28 carbon atoms, and phenyl sulfonates wherein the phenyl group is substituted by an alkyl group of from 8 to 28 carbon atoms.
Claim 3
Dependent Claim
16 words
The compound according to claim 1 wherein the compound is 4-hydroxymaleoyloxy ethyl 2-acetamido dimethyl ammonium bis-tridecylsulfosuccinate.
Claim 4
Dependent Claim
17 words
The compound according to claim 1 wherein the compound is 4-hydroxymaleoyloxy ethyl 2-acetamido dimethyl ammonium p-dodecylphenyl sulfonate.
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) | 1979-09-28 | 1980-03-29 | 1980-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-09-28 | 1984-03-29 | 1984-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-09-28 | 1988-03-29 | 1988-09-28 | $7700.00 | Window Closed / Lapsed |