US2859201A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Graft-type polymer of conjugated diene and acrylic acid and process of preparation
Assignee: Phillips Petroleum Co
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Filing: 1953-11-09
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Granted: 1958-11-04
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Expires: 1973-11-09
Abstract
No abstract record available.
Inventors
- 👤 Carl A Uraneck
- 👤 Richard J Sonnenfeld
- 👤 Jr Durward F Dodgen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:18
CPC Classifications
C; C08; C08F; C08F265/00; C08F265/02; C08F279/00; C08F279/02; Y; Y10; Y10S; Y10S525/00; Y10S525/919
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
A PROCESS FOR PREPARING A GRAFT-TYPE POLYMER COMPRISING TREATING AN UNSATURATED POLYMER WITH A BASE TO FORM A WATER-SOLUBLE SALT THEREOF, SAID POLYMER BEING PREPARED FROM A POLYMERIZABLE MIXTURE WHICH INCLUDES A CONJUGATED DIENE AND AN UNSATURATED CARBOXY ACID, THE LATTER CONSTITUTING 20-99% BY WEIGHTG OF TOTAL MONOMERS, AND POLYMERIZING SAID SALT WITH AT LEAST ONE VINYLIDENE COMPOUND IN AN AQUEOUS EMULSION SYSTEM IN THE PRESENCE OF A POLYMERIZATION CATALYST, SAID POLYMER BEING THE SOLE EMULSIFIER IN THE SYSTEM AND CONSTITUTING AT LEAST 1% BY WEIGHT OF THE POLYMERIZABLE CONSTITUENTS THEREIN.
Claim 2
Dependent Claim
91 words
A PROCESS FOR PREPARING A GRAFT-TYPE POLYMER COMPRISING TREATING AN UNSATURATED POLYMER WITH A BASE TO FORM A WATER-SOLUBLE SALT THEREOF, SAID POLYMER BEING PREPARED FROM A POLYMERIZABLE MIXTURE WHICH INCLUDES A CONJUGATED DIENE AND AN UNSATURATED CARBOXY ACID, THE LATTER CONSTITUTING 20-99% BY WEIGHTG OF TOTAL MONOMERS, AND POLYMERIZING SAID SALT WITH AT LEAST ONE VINYLIDENE COMPOUND IN AN AQUEOUS EMULSION SYSTEM IN THE PRESENCE OF A POLYMERIZATION CATALYST, SAID POLYMER BEING THE SOLE EMULSIFIER IN THE SYSTEM AND CONSTITUTING AT LEAST 1% BY WEIGHT OF THE POLYMERIZABLE CONSTITUENTS THEREIN.
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) | 1961-11-03 | 1962-05-05 | 1962-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-03 | 1966-05-05 | 1966-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-03 | 1970-05-05 | 1970-11-04 | $7700.00 | Window Closed / Lapsed |