US2500894A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Distillation of volatile monomeric materials from aqueous polymer dispersions while reducing foam formation by the presence of acetic acid
Assignee: Goodrich Corp
•
Filing: 1946-06-19
•
Granted: 1950-03-14
•
Expires: 1966-06-19
Abstract
No abstract record available.
Inventors
- 👤 Craig David
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:15
CPC Classifications
C; C08; C08C; C08C1/00; C08C1/02; C08C1/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
IN A PROCESS OF STEAM-DISTILLING AN UNPOLYMERIZED STEAM-DISTILLABLE MONOMER FROM AN AQUEOUS POLYMER DISPERSION PREPARED BY THE INCOMPRISING SAID STEAM-DISTILLABLE MONOMER IN AN AQUEOUS EMULSION IN THE PRESENCE OF AN EMULSIFYING AGENT SELECTED FROM THE CLASS CONSISTING OF FATTY ACID AND ROSIN ACID SOAPS, THE METHOD OF REDUCING THE FORMATION OF FOAM DURING THE DISTILLATION WHICH COMPRISES INCLUDING IN THE SAID DISPERSION PRIOR TO THE DISTILLATION AN AMOUNT OF ACETIC ACID INSUFFICIENT TO COAGULATE THE DISPERSION.
Claim 2
Dependent Claim
76 words
IN A PROCESS OF STEAM-DISTILLING AN UNPOLYMERIZED STEAM-DISTILLABLE MONOMER FROM AN AQUEOUS POLYMER DISPERSION PREPARED BY THE INCOMPRISING SAID STEAM-DISTILLABLE MONOMER IN AN AQUEOUS EMULSION IN THE PRESENCE OF AN EMULSIFYING AGENT SELECTED FROM THE CLASS CONSISTING OF FATTY ACID AND ROSIN ACID SOAPS, THE METHOD OF REDUCING THE FORMATION OF FOAM DURING THE DISTILLATION WHICH COMPRISES INCLUDING IN THE SAID DISPERSION PRIOR TO THE DISTILLATION AN AMOUNT OF ACETIC ACID INSUFFICIENT TO COAGULATE THE DISPERSION.
References Cited (Backward Citations)
GB339255A
Cited
US2366325A
Cited
US2366460A
Cited
US2409915A
Cited
US2387385A
Cited
US2426127A
Cited
US2379268A
Cited
US2357861A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-03-13 | 1953-09-12 | 1954-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-03-13 | 1957-09-12 | 1958-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-03-13 | 1961-09-12 | 1962-03-14 | $7700.00 | Window Closed / Lapsed |