US2963525A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of supplying a catalyst to a reactor and apparatus therefor
Assignee: Phillips Petroleum Co
•
Filing: 1956-05-07
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Granted: 1960-12-06
•
Expires: 1976-05-07
Abstract
No abstract record available.
Inventors
- 👤 John M Folz
- 👤 Carl A Bretz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:17
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/0015; C; C08; C08F; C08F10/00; C08F10/02; Y; Y10; Y10S; Y10S585/00; Y10S585/949; Y10S585/955; Y10T; Y10T137/00; Y10T137/0318; Y10T137/0391
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
151 words
A METHOD OF CONVERTING AN OLEFINIC MATERIAL TO A POLYMER IN THE PRESENCE OF A CATALYTIC SLURRY WHICH COMPRISES ACTIVATING A CATALYST ADAPTED TO THE CONVERSION OF SAID OLEFINIC MATERIAL UNDER CONDITIONS EXCLUDING UNDESIRABLE CONTAMINATION, TRANSPORTING SAID CATALYST IN A TRANSPORT GAS UNDER CONDITIONS TO DISPLACE AIR AND WATER VAPOR FROM SAID CATALYST TO A SLURRY PREPARATION ZONE, IN SAID ZONE ADMIXING SAID CATALYST WITH A FLUID ADAPTED TO PREPARE SAID SLURRY, IN SAID ZONE DEGASSING THE SLURRY OBTAINED THEREIN, CIRCULATING SAID SLURRY FROM SAID ZONE AND BACK TO SAID ZONE THROUGH A CLOSED CIRCUIT IN WHICH THE SLURRY IS MAINTAINED IN A STATE OF TURBULENCE SUFFICIENT TO AVOID SEGREGATION OF SAID SLURRY, REMOVING A SMALL PORTION OF THE SLURRY BEING CIRCULATED FROM SAID CIRCUIT, INTRODUCING SAID PORTION OF SLURRY INTO A CONVERSION ZONE MAINTAINED UNDER POLYMER-FORMING CONDITIONS, AND THEREIN CONTACTING SAID SLURRY WITH SAID OLEFINIC MATERIAL TO FORM SAID POLYMER.
Claim 2
Independent Claim
151 words
A METHOD OF CONVERTING AN OLEFINIC MATERIAL TO A POLYMER IN THE PRESENCE OF A CATALYTIC SLURRY WHICH COMPRISES ACTIVATING A CATALYST ADAPTED TO THE CONVERSION OF SAID OLEFINIC MATERIAL UNDER CONDITIONS EXCLUDING UNDESIRABLE CONTAMINATION, TRANSPORTING SAID CATALYST IN A TRANSPORT GAS UNDER CONDITIONS TO DISPLACE AIR AND WATER VAPOR FROM SAID CATALYST TO A SLURRY PREPARATION ZONE, IN SAID ZONE ADMIXING SAID CATALYST WITH A FLUID ADAPTED TO PREPARE SAID SLURRY, IN SAID ZONE DEGASSING THE SLURRY OBTAINED THEREIN, CIRCULATING SAID SLURRY FROM SAID ZONE AND BACK TO SAID ZONE THROUGH A CLOSED CIRCUIT IN WHICH THE SLURRY IS MAINTAINED IN A STATE OF TURBULENCE SUFFICIENT TO AVOID SEGREGATION OF SAID SLURRY, REMOVING A SMALL PORTION OF THE SLURRY BEING CIRCULATED FROM SAID CIRCUIT, INTRODUCING SAID PORTION OF SLURRY INTO A CONVERSION ZONE MAINTAINED UNDER POLYMER-FORMING CONDITIONS, AND THEREIN CONTACTING SAID SLURRY WITH SAID OLEFINIC MATERIAL TO FORM SAID POLYMER.
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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) | 1963-12-06 | 1964-06-06 | 1964-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-06 | 1968-06-06 | 1968-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-06 | 1972-06-06 | 1972-12-06 | $7700.00 | Window Closed / Lapsed |