US2542783A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Emulsions of ethylene polymers and interpolymers and process of making same
Assignee: Imperial Chemical Industries Ltd
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Filing: 1949-04-07
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Granted: 1951-02-20
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Expires: 1969-04-07
Abstract
No abstract record available.
Inventors
- 👤 Seed Leslie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:50
CPC Classifications
C; C08; C08F; C08F265/00; C08F265/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
PROCESS FOR THE MANUFACTURE OF IMPROVED AQUEOUS EMULSIONS OF SOLID ETHYLENE POLYMERS WHICH COMPRISES POLYMERISING ETHYLENE AT A HIGH TEMPERATURE AND PRESSURE, IN THE PRESENCE OF WATER, A WATER-SOLUBLE SALT OF A CARBOXYLIC ACID POLYMER OF MOLECULAR WEIGHT ABOVE 300, AND AN ORGANIC SULPHONIC COMPOUND OF THE FORMULA R.SO3M, WHERE M IS A RADICAL OF THE GROUP CONSISTING OF HYDROGEN, AMMONIUM, QUATERNARY AMMONIUM, ALKALI METAL AND ALKALINE EARTH METAL.
Claim 2
Dependent Claim
69 words
PROCESS FOR THE MANUFACTURE OF IMPROVED AQUEOUS EMULSIONS OF SOLID ETHYLENE POLYMERS WHICH COMPRISES POLYMERISING ETHYLENE AT A HIGH TEMPERATURE AND PRESSURE, IN THE PRESENCE OF WATER, A WATER-SOLUBLE SALT OF A CARBOXYLIC ACID POLYMER OF MOLECULAR WEIGHT ABOVE 300, AND AN ORGANIC SULPHONIC COMPOUND OF THE FORMULA R.SO3M, WHERE M IS A RADICAL OF THE GROUP CONSISTING OF HYDROGEN, AMMONIUM, QUATERNARY AMMONIUM, ALKALI METAL AND ALKALINE EARTH METAL.
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) | 1954-02-19 | 1954-08-21 | 1955-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-19 | 1958-08-21 | 1959-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-19 | 1962-08-21 | 1963-02-20 | $7700.00 | Window Closed / Lapsed |