US3073808A
Expired / Lapsed
US
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Process for controlling o2 content during polymerization
Assignee: Phillips Petroleum Co
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Filing: 1954-09-13
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Granted: 1963-01-15
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Expires: 1974-09-13
Abstract
No abstract record available.
Inventors
- 👤 Clyde W Mertz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:32
CPC Classifications
C; C08; C08F; C08F36/00; C08F36/02; C08F36/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
IN THE PRODUCTION OF A POLYMERIC MATERIAL OF HIGH MOLECULAR WEIGHT BY THE POLYMERIZATION IN AN AQUEOUS EMULSION OF A MONOMERIC MATERIAL COMPRISING A MAJOR AMOUNT OF A POLYMERIZABLE, 1,3-DIOLEFIN AND A MINOR AMOUNT OF AN UNSATURATED ORGANIC COMPOUND COPOLYMERIZABLE THEREWITH IN AQUEOUS EMULSION, SAID POLYMERIZATION BEING CONDUCTED IN THE PRESENCE OF A REDOX COMPOSITION COMPRISING AN OXIDANT, A REDUCTANT AND AN ACTIVATOR; THE STEPS OF ANALYZING THE MATERIALS BEING POLYMERIZED TO DETERMINE THE OXYGEN CONTENT THEREOF, AND ADJUSTING THE AMOUNT OF ACTIVATOR EMPLOYED IN THE POLYMERIZATION IN RESPONSE TO THE ANALYSIS BY INCREASING THE ADDITION OF ACTIVATOR WHEN THE MEASURED OXYGEN CONTENT EXCEEDS A PREDETERMINED VALUE SO THAT THE REACTION TAKES PLACE AT A PRESELECTED RATE.
Claim 2
Dependent Claim
117 words
IN THE PRODUCTION OF A POLYMERIC MATERIAL OF HIGH MOLECULAR WEIGHT BY THE POLYMERIZATION IN AN AQUEOUS EMULSION OF A MONOMERIC MATERIAL COMPRISING A MAJOR AMOUNT OF A POLYMERIZABLE, 1,3-DIOLEFIN AND A MINOR AMOUNT OF AN UNSATURATED ORGANIC COMPOUND COPOLYMERIZABLE THEREWITH IN AQUEOUS EMULSION, SAID POLYMERIZATION BEING CONDUCTED IN THE PRESENCE OF A REDOX COMPOSITION COMPRISING AN OXIDANT, A REDUCTANT AND AN ACTIVATOR; THE STEPS OF ANALYZING THE MATERIALS BEING POLYMERIZED TO DETERMINE THE OXYGEN CONTENT THEREOF, AND ADJUSTING THE AMOUNT OF ACTIVATOR EMPLOYED IN THE POLYMERIZATION IN RESPONSE TO THE ANALYSIS BY INCREASING THE ADDITION OF ACTIVATOR WHEN THE MEASURED OXYGEN CONTENT EXCEEDS A PREDETERMINED VALUE SO THAT THE REACTION TAKES PLACE AT A PRESELECTED RATE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-14 | 1966-07-16 | 1967-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-14 | 1970-07-16 | 1971-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-14 | 1974-07-16 | 1975-01-15 | $7700.00 | Window Closed / Lapsed |