US3271341A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aqueous colloidal dispersions of polymer
Assignee: EIDP Inc
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Filing: 1961-08-07
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Granted: 1966-09-06
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Expires: 1981-08-07
Abstract
No abstract record available.
Inventors
- 👤 Jr William Emmett Garrison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:20
CPC Classifications
C; C07; C07C; C07C59/00; C07C59/125; C07C59/135; C08; C08F; C08F14/00; C08F14/18; C08F14/26; C08F2/00; C08F2/12; C08F2/16; C08F2/22; C08F2/24; C08F2/26; C08K; C08K5/00; C08K5/04; C08K5/09; C08K5/095
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
60 words
IN THE POLYMERIZATION OF A MONOETHYLENICALLY UNSATURATED MONOMER COMPOSITION IN AN AQUEOUS MEDIUM TO OBTAIN A COLLOIDAL DISPERSION OF POLYMER EMPLOYING A WATER-SOLUBLE POLYMERIZATION INITIATOR, THE STEP OF CARRYING OUT THE POLYMERIZATION IN THE PRESENCE OF AN IONIZABLE DISPERSING AGENT, SAID DISPERSING AGENT BEING A COMPOUND HAVING A SOLUBILITY OF AT LEAST 0.1% TO 100*C. AND HAVING THE GENERAL FORMULA
Claim 2
Dependent Claim
60 words
IN THE POLYMERIZATION OF A MONOETHYLENICALLY UNSATURATED MONOMER COMPOSITION IN AN AQUEOUS MEDIUM TO OBTAIN A COLLOIDAL DISPERSION OF POLYMER EMPLOYING A WATER-SOLUBLE POLYMERIZATION INITIATOR, THE STEP OF CARRYING OUT THE POLYMERIZATION IN THE PRESENCE OF AN IONIZABLE DISPERSING AGENT, SAID DISPERSING AGENT BEING A COMPOUND HAVING A SOLUBILITY OF AT LEAST 0.1% TO 100*C. AND HAVING THE GENERAL 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) | 1969-09-05 | 1970-03-07 | 1970-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-05 | 1974-03-07 | 1974-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-05 | 1978-03-07 | 1978-09-06 | $7700.00 | Window Closed / Lapsed |