US3062767A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of stripping solvent from a polymer latex
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1958-05-13
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Granted: 1962-11-06
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Expires: 1978-05-13
Abstract
No abstract record available.
Inventors
- 👤 Hunter Edward Allen
- 👤 Augustus B Small
- 👤 Alfred L Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:20
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/02; C08J3/03; C08J2323/00; C08J2323/02; C08J2323/18; C08J2323/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
IN A PROCESS OF STRIPPING SOLVENT FROM A RAW LATEX OF A COPOLYMER OF A C4 TO C8 ISOOLEFIN WITH A CONJUGATED DIOLEFIN, SAID LATEX CONTAINING SAID COPOLYMER DISSOLVED IN A SOLVENT AND EMULSIFIED WITH WATER AND AN EMULSIFIER, THE COMBINATION WHICH COMPRISES CHARGING A STRIPPING MEANS WITH A DILUTE AQUEOUS EMULSIFIER SOLUTION, HEATING THE EMULSIFIER SOLUTION TO A TEMPERATURE BETWEEN 100* AND 200*F., SUBSEQUENTLY CONTINUOUSLY INTRODUCING RAW BUTYL RUBBER LATEX INTO SAID HOT STRIPPING MEANS AND REMOVING THE SOLVENT.
Claim 2
Dependent Claim
80 words
IN A PROCESS OF STRIPPING SOLVENT FROM A RAW LATEX OF A COPOLYMER OF A C4 TO C8 ISOOLEFIN WITH A CONJUGATED DIOLEFIN, SAID LATEX CONTAINING SAID COPOLYMER DISSOLVED IN A SOLVENT AND EMULSIFIED WITH WATER AND AN EMULSIFIER, THE COMBINATION WHICH COMPRISES CHARGING A STRIPPING MEANS WITH A DILUTE AQUEOUS EMULSIFIER SOLUTION, HEATING THE EMULSIFIER SOLUTION TO A TEMPERATURE BETWEEN 100* AND 200*F., SUBSEQUENTLY CONTINUOUSLY INTRODUCING RAW BUTYL RUBBER LATEX INTO SAID HOT STRIPPING MEANS AND REMOVING THE SOLVENT.
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) | 1965-11-05 | 1966-05-07 | 1966-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-05 | 1970-05-07 | 1970-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-05 | 1974-05-07 | 1974-11-06 | $7700.00 | Window Closed / Lapsed |