Patent US2853471A successfully refreshed from Google Patents.
US2853471A
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Making addition polymers and copolymers with phosphorus compound emulsifier
Assignee: GAF Chemicals Corp
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Filing: 1955-11-29
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Granted: 1958-09-23
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Expires: 1975-11-29
Abstract
No abstract record available.
Inventors
- 👤 Donald A Beadell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:44
CPC Classifications
C; C08; C08F; C08F36/00; C08F36/02; C08F36/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
51 words
THE PROCESS OF PRODUCING AQUEOUS EMULSION POLYMERIZATES OF AT LEAST ONE POLYMERIZABLE COMPOUND OF THE GROUP CONSISTING OF A CONJUGATED DIOLEFIN AND A COMPOUND CONTAINING A SINGLE >C=C< GROUP WHICH COMPRISES EFFECTING THE POLYMERIZATION IN AN AQUEOUS MEDIUM CONTAINING AN EMULSIFYING AGENT SELECTED FROM THE CLASS CONSISTING OF THE FOLLOWING FORMULAE:
Claim 2
Dependent Claim
51 words
THE PROCESS OF PRODUCING AQUEOUS EMULSION POLYMERIZATES OF AT LEAST ONE POLYMERIZABLE COMPOUND OF THE GROUP CONSISTING OF A CONJUGATED DIOLEFIN AND A COMPOUND CONTAINING A SINGLE >C=C< GROUP WHICH COMPRISES EFFECTING THE POLYMERIZATION IN AN AQUEOUS MEDIUM CONTAINING AN EMULSIFYING AGENT SELECTED FROM THE CLASS CONSISTING OF THE FOLLOWING FORMULAE:
References Cited (Backward Citations)
US2587340A
Cited
US2754280A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-22 | 1962-03-24 | 1962-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-22 | 1966-03-24 | 1966-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-22 | 1970-03-24 | 1970-09-23 | $7700.00 | Window Closed / Lapsed |