US3035040A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reaction process for polymerization
Assignee: Phillips Petroleum Co
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Filing: 1960-02-24
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Granted: 1962-05-15
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Expires: 1980-02-24
Abstract
No abstract record available.
Inventors
- 👤 Robert A Findlay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:03
CPC Classifications
C; C08; C08F; C08F10/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
A PROCESS FOR OBTAINING HIGH YIELDS OF NORMALLY SOLID POLYMER PER WEIGHT OF CATALYST, WHICH PROCESS COMPRISES POLYMERIING AN OLEFIN IN DILUTE PHASE IN THE PRESENCE OF A CATALYST AND DILUTE UNDER TEMPERATURE AND PRESSURE CONDITIONS SUITABLE FOR THE PRODUCTION OF NORMALLY SOLID POLYMER IN A FIST REACTION ZONE BY PASSING THE REACTION MIXTURE IN STREAMLINE FLOW THROUGH AN ELONGATED TUBULAR ZONE, RECOVERING A CRUDE REACTION PRODUCT MIXTURE FROM SAID FIRST ZONE CONTAINING UP TO ABOUT 10 WEIGHT PERCENT POLYMER, DILUENT, UNREACTED OLEFIN AND CATALYST, AND PASSING SAID MIXTURE TO A SECOND REACTION ZONE COMPRISING AN AGITATED ZONE MAINTAINED UNDER TEMPERATURE AND PRESSURE CONDITIONS SUITABLE FOR THE, FORMTION OF A NORMALLY SOLID POLYMER FROM SAID OLEFIN, FORMING SUCH POLYMER IN SAID ZONE, AND RECOVERING A POLYMERIC PRODUCT.
Claim 2
Dependent Claim
127 words
A PROCESS FOR OBTAINING HIGH YIELDS OF NORMALLY SOLID POLYMER PER WEIGHT OF CATALYST, WHICH PROCESS COMPRISES POLYMERIING AN OLEFIN IN DILUTE PHASE IN THE PRESENCE OF A CATALYST AND DILUTE UNDER TEMPERATURE AND PRESSURE CONDITIONS SUITABLE FOR THE PRODUCTION OF NORMALLY SOLID POLYMER IN A FIST REACTION ZONE BY PASSING THE REACTION MIXTURE IN STREAMLINE FLOW THROUGH AN ELONGATED TUBULAR ZONE, RECOVERING A CRUDE REACTION PRODUCT MIXTURE FROM SAID FIRST ZONE CONTAINING UP TO ABOUT 10 WEIGHT PERCENT POLYMER, DILUENT, UNREACTED OLEFIN AND CATALYST, AND PASSING SAID MIXTURE TO A SECOND REACTION ZONE COMPRISING AN AGITATED ZONE MAINTAINED UNDER TEMPERATURE AND PRESSURE CONDITIONS SUITABLE FOR THE, FORMTION OF A NORMALLY SOLID POLYMER FROM SAID OLEFIN, FORMING SUCH POLYMER IN SAID ZONE, AND RECOVERING A POLYMERIC PRODUCT.
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) | 1965-05-14 | 1965-11-13 | 1966-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-14 | 1969-11-13 | 1970-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-14 | 1973-11-13 | 1974-05-15 | $7700.00 | Window Closed / Lapsed |