US2559752A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aqueous colloidal dispersions of polymers
Assignee: EIDP Inc
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Filing: 1951-03-06
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Granted: 1951-07-10
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Expires: 1971-03-06
Abstract
No abstract record available.
Inventors
- 👤 Kenneth L Berry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:39
CPC Classifications
C; C08; C08F; C08F2/00; C08F2/12; C08F2/16; C08F2/22; C08F2/24; C08F14/00; C08F14/18; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/07; Y10S526/00; Y10S526/91
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
A STABLE AQUEOUS COLLOIDAL DISPERSION OF THE POLYMER OF A MONOMERIC ETHYLENICALLY UNSATURATED ORGANIC COMPOUND, SAID DISPERSION CONTAINING, AS AN IONIZABLE DISPERSING AGENT, A COMPOUND HAVING A SOLUBILITY IN WATER OF AT LEAST 0.1% AT 100* C. AND COMPRISING AN IONIC HYDROPHILIC PORTION AND A HYDROPHOBIC PORTION, SAID LATTER BEING A FLUOROALKYL GROUP CONTAINING AT LEAST 6 ALIPHATIC CARBON ATOMS, ALL EXCEPT AT MOST ONE OF WHICH, AND THAT ONE THE CLOSEST TO SAID SOLUBILIZING GROUP, BEARING AT LEAST 2 FLUORINE ATOMS, THE TERMINAL CARBON ATOM BEARING IN ADDITION AN ATOM FROM THE GROUP CONSISTING OF HYDROGEN AND FLUORINE.
Claim 2
Dependent Claim
99 words
A STABLE AQUEOUS COLLOIDAL DISPERSION OF THE POLYMER OF A MONOMERIC ETHYLENICALLY UNSATURATED ORGANIC COMPOUND, SAID DISPERSION CONTAINING, AS AN IONIZABLE DISPERSING AGENT, A COMPOUND HAVING A SOLUBILITY IN WATER OF AT LEAST 0.1% AT 100* C. AND COMPRISING AN IONIC HYDROPHILIC PORTION AND A HYDROPHOBIC PORTION, SAID LATTER BEING A FLUOROALKYL GROUP CONTAINING AT LEAST 6 ALIPHATIC CARBON ATOMS, ALL EXCEPT AT MOST ONE OF WHICH, AND THAT ONE THE CLOSEST TO SAID SOLUBILIZING GROUP, BEARING AT LEAST 2 FLUORINE ATOMS, THE TERMINAL CARBON ATOM BEARING IN ADDITION AN ATOM FROM THE GROUP CONSISTING OF HYDROGEN AND FLUORINE.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-09 | 1955-01-08 | 1955-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-09 | 1959-01-08 | 1959-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-09 | 1963-01-08 | 1963-07-10 | $7700.00 | Window Closed / Lapsed |