US3316201A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the manufacture of concentrated aqueous dispersions of fluorinated olefin polymers
Assignee: Hoechst AG
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Filing: 1964-12-22
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Granted: 1967-04-25
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Expires: 1984-12-22
Abstract
No abstract record available.
Inventors
- 👤 Hahn Helmut
- 👤 Beermann Claus
- 👤 Ulmschneider Dieter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:03
CPC Classifications
C; C08; C08F; C08F6/00; C08F6/14; C08F6/20; C08L; C08L27/00; C08L27/02; C08L27/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
A PROCESS FOR THE MANUFACTURE OF A CONCENTRATED DISPERSION OF A FLUORINATED OLEFIN POLYMER IN WATER AS THE SOLE CONTINUOUS PHASE WHICH COMPRISES ADDING 1 TO 10 PERCENT BY WEIGHT, CALCULATED ON THE SOLIDS CONTENT OF THE DISPERSION, OF A SURFACE-ACTIVE, AGENT OF THE GROUP CONSISTING OF P-OCTYLPHENOL-POLYENTHYLENEGLYCOL ETHER AND PNONYLPHENOL-POLYETHYTENEGLYCOL ETHER TO A DILUTE DISPERSION OF SAID FLUORINATED OLEFIN POLYMER IN WATER AS THE SOLE CONTINUOUS PHASE AND DISTILLING THE MAJOR PORTION OF THE WATER FROM THE DISPERSION IN VACUO AT A TEMPERATURE OF 10 TO 60*C. WHILE PREVENTING PENETRATION OF AIR OR OTHER GAS INTO THE DISPERSION.
Claim 2
Dependent Claim
99 words
A PROCESS FOR THE MANUFACTURE OF A CONCENTRATED DISPERSION OF A FLUORINATED OLEFIN POLYMER IN WATER AS THE SOLE CONTINUOUS PHASE WHICH COMPRISES ADDING 1 TO 10 PERCENT BY WEIGHT, CALCULATED ON THE SOLIDS CONTENT OF THE DISPERSION, OF A SURFACE-ACTIVE, AGENT OF THE GROUP CONSISTING OF P-OCTYLPHENOL-POLYENTHYLENEGLYCOL ETHER AND PNONYLPHENOL-POLYETHYTENEGLYCOL ETHER TO A DILUTE DISPERSION OF SAID FLUORINATED OLEFIN POLYMER IN WATER AS THE SOLE CONTINUOUS PHASE AND DISTILLING THE MAJOR PORTION OF THE WATER FROM THE DISPERSION IN VACUO AT A TEMPERATURE OF 10 TO 60*C. WHILE PREVENTING PENETRATION OF AIR OR OTHER GAS INTO THE DISPERSION.
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) | 1970-04-24 | 1970-10-24 | 1971-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-04-24 | 1974-10-24 | 1975-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-04-24 | 1978-10-24 | 1979-04-25 | $7700.00 | Window Closed / Lapsed |