US2990389A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Superior polyethylene emulsions
Assignee: Commercial Solvents Corp
•
Filing: 1959-05-29
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Granted: 1961-06-27
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Expires: 1979-05-29
Abstract
No abstract record available.
Inventors
- 👤 John A Frump
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:05
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/02; C08J3/03; C08J2323/00; C08J2323/02; C08J2323/04; C08J2323/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
IN A PROCESS FOR THE PRODUCTION OF A STABLE, CLEAR, NON-CREAMING AQUEOUS EMULSION OF POLYETHYLENE, THE IMPROVEMENT WHICH COMPRISES MIXING MOLTEN POLYETHYLENE WITH ABOUT 20-23% OLEIC ACID AND ABOUT 7.2-7.7% 2-AMINO-2-METHYL-L-PROPANOL; AGITATING THE MELT UNTIL IT IS UNIFORM, INCREMENTALLY MIXING THE MELT WITH ABOUT 140160% OF WATER HAVING A TEMPERATURE OF ABOUT 200-212* F., AGITATING THE RESULTANT MIXTURE UNTIL A CONCENTRATED UNIFORM EMULSION FORMS, INCREMENTALLY MIXING THE CONCENTRATED EMULSION WITH MORE THAN 120%, ALL PERCENTAGES ARE BY WEIGHT BASED ON THE WEIGHT OF POLYETHYLENE IN THE MELT, OF WATER HAVING A TEMPERATURE OF ABOUT 40-80* F. AND AGITATING THE RESULTANT MIXTURE UNTIL A UNIFORM EMULSION FORMS.
Claim 2
Dependent Claim
106 words
IN A PROCESS FOR THE PRODUCTION OF A STABLE, CLEAR, NON-CREAMING AQUEOUS EMULSION OF POLYETHYLENE, THE IMPROVEMENT WHICH COMPRISES MIXING MOLTEN POLYETHYLENE WITH ABOUT 20-23% OLEIC ACID AND ABOUT 7.2-7.7% 2-AMINO-2-METHYL-L-PROPANOL; AGITATING THE MELT UNTIL IT IS UNIFORM, INCREMENTALLY MIXING THE MELT WITH ABOUT 140160% OF WATER HAVING A TEMPERATURE OF ABOUT 200-212* F., AGITATING THE RESULTANT MIXTURE UNTIL A CONCENTRATED UNIFORM EMULSION FORMS, INCREMENTALLY MIXING THE CONCENTRATED EMULSION WITH MORE THAN 120%, ALL PERCENTAGES ARE BY WEIGHT BASED ON THE WEIGHT OF POLYETHYLENE IN THE MELT, OF WATER HAVING A TEMPERATURE OF ABOUT 40-80* F. AND AGITATING THE RESULTANT MIXTURE UNTIL A UNIFORM EMULSION FORMS.
References Cited (Backward Citations)
US2313144A
Cited
US2766214A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-26 | 1964-12-26 | 1965-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-26 | 1968-12-26 | 1969-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-26 | 1972-12-26 | 1973-06-27 | $7700.00 | Window Closed / Lapsed |