US3296170A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Emulsion polymerization of ethylene
Assignee: Union Carbide Corp
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Filing: 1963-04-03
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Granted: 1967-01-03
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Expires: 1983-04-03
Abstract
No abstract record available.
Inventors
- 👤 Richard D Burkhart
- 👤 Nathan L Zutty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:52
CPC Classifications
C; C08; C08F; C08F214/00; C08F214/18; C08F214/20; C08F10/00; C08F10/02; C08F14/00; C08F14/18; C08F14/20; C08F2/00; C08F2/12; C08F2/16; C08F2/22; C08F2/24; C08F110/00; C08F110/02; C08F210/00; C08F210/02; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/03; Y10S516/05; Y10S516/07; Y10S526/00; Y10S526/911
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
A PROCESS FOR PRODUCING A STABLE ETHYLENE POLYMER LATEX CHARACTERIZED BY RELATIVELY SPERICAL PARTICLES HAVING A DIAMETER OF FROM 0.01 TO 2.0 MICRONS WHICH PROCESS COMPRISES SUBJECTING A POLYMERIZABLE MASS OF NON-AROMATIC, MONO-OLEFINICALLY UNSATURATED, POLYMERIZABLE MONOMER CONTAINING FROM 5 TO 100 PERCENT ETHYLENE MONOMER THEREIN TO A TEMPERATURE OF FROM 50*C. TO 250*C., AT A PRESSURE OF FROM ABOUT 1000 POUNDS PER SQUARE INCH TO ABOUT 50,000 POUNDS PER SQUARE INCH, WITH THE PROVISO THAT A PRESURE OF AT LEAST 8,000 POUNDS PER SQUARE INCH IS EMPLOYED IN PREPARING ETHYLENE HOMOPOLYMER, IN AN AQUEOUS MEDIA CONTAINING (1) A WATER-SOLUBLE FREE-RADICAL CATALYST; (2) A SURFACTANT SELECTED FROM THE GROUP CONSISTING OF (A) AMINE SALTS OF ALKYL ARYL SUFONATES CONTAINING FROM 12 TO 30 CARBON ATOMS INCLUSIVE AND HAVING A MICELLE POTENTIAL OF LESS THAN 10 AND (B) OILSOLUBLE NON-IONIC SURFACTANTS OF THE FORMULA:
Claim 2
Dependent Claim
142 words
A PROCESS FOR PRODUCING A STABLE ETHYLENE POLYMER LATEX CHARACTERIZED BY RELATIVELY SPERICAL PARTICLES HAVING A DIAMETER OF FROM 0.01 TO 2.0 MICRONS WHICH PROCESS COMPRISES SUBJECTING A POLYMERIZABLE MASS OF NON-AROMATIC, MONO-OLEFINICALLY UNSATURATED, POLYMERIZABLE MONOMER CONTAINING FROM 5 TO 100 PERCENT ETHYLENE MONOMER THEREIN TO A TEMPERATURE OF FROM 50*C. TO 250*C., AT A PRESSURE OF FROM ABOUT 1000 POUNDS PER SQUARE INCH TO ABOUT 50,000 POUNDS PER SQUARE INCH, WITH THE PROVISO THAT A PRESURE OF AT LEAST 8,000 POUNDS PER SQUARE INCH IS EMPLOYED IN PREPARING ETHYLENE HOMOPOLYMER, IN AN AQUEOUS MEDIA CONTAINING (1) A WATER-SOLUBLE FREE-RADICAL CATALYST; (2) A SURFACTANT SELECTED FROM THE GROUP CONSISTING OF (A) AMINE SALTS OF ALKYL ARYL SUFONATES CONTAINING FROM 12 TO 30 CARBON ATOMS INCLUSIVE AND HAVING A MICELLE POTENTIAL OF LESS THAN 10 AND (B) OILSOLUBLE NON-IONIC SURFACTANTS OF THE FORMULA:
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) | 1970-01-02 | 1970-07-04 | 1971-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-02 | 1974-07-04 | 1975-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-02 | 1978-07-04 | 1979-01-03 | $7700.00 | Window Closed / Lapsed |