US3102050A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of coating particulated resinous material by polymerization technique
Assignee: Phillips Petroleum Co
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Filing: 1960-04-21
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Granted: 1963-08-27
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Expires: 1980-04-21
Abstract
No abstract record available.
Inventors
- 👤 Peter J Canterino
- 👤 Lon T Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:04
CPC Classifications
C; C08; C08F; C08F255/00; C08F255/02; Y; Y10; Y10S; Y10S8/00; Y10S8/09; Y10S8/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
A METHOD FOR PRODDUCING A FREE-FLOWING COMPOSITION WHICH COMPRISES: PRODUCING A FINE GRANULAR POLYETHYLENE HAVING A DENSITY OF 0.94 TO 1.00 GM. PER CC. AND A PARTICLE SIZE OF UP TO 40 MESH; APPLYING TO SAID GRANULAR POLYETHYLENE DIRECTLY WITHOUT INTERMEDIATE CHEMICAL TREATMENT, A LIQUID MONOMER AND A POLYMERZATION CATALYST THEREFOR, THE AMOUNT OF SAID MONOMER USED BEING IN THE RANGE BETWEEEN ABOUT 1 AND ABOUT 100 WEIGHT PERCENT BASED ON SAID POLYETHYLENE; SUBJECTING THE RESULTING MONOMER WET HIGH SURFACE AREA FORM OF POLYETHYLENE TO POLYMERIZATION CONDITIONS FOR SUCH MONOMER, IN THE ABSENCE OF A DILUENT, WITHOUT STIRRING; AND RECOVERING SAID FREE-FLOWING COMPOSITION DIRECTLY AS THE RESULT OF SAID METHOD
Claim 2
Independent Claim
110 words
A METHOD FOR PRODDUCING A FREE-FLOWING COMPOSITION WHICH COMPRISES: PRODUCING A FINE GRANULAR POLYETHYLENE HAVING A DENSITY OF 0.94 TO 1.00 GM. PER CC. AND A PARTICLE SIZE OF UP TO 40 MESH; APPLYING TO SAID GRANULAR POLYETHYLENE DIRECTLY WITHOUT INTERMEDIATE CHEMICAL TREATMENT, A LIQUID MONOMER AND A POLYMERZATION CATALYST THEREFOR, THE AMOUNT OF SAID MONOMER USED BEING IN THE RANGE BETWEEEN ABOUT 1 AND ABOUT 100 WEIGHT PERCENT BASED ON SAID POLYETHYLENE; SUBJECTING THE RESULTING MONOMER WET HIGH SURFACE AREA FORM OF POLYETHYLENE TO POLYMERIZATION CONDITIONS FOR SUCH MONOMER, IN THE ABSENCE OF A DILUENT, WITHOUT STIRRING; AND RECOVERING SAID FREE-FLOWING COMPOSITION DIRECTLY AS THE RESULT OF SAID METHOD
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) | 1966-08-26 | 1967-02-25 | 1967-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-26 | 1971-02-25 | 1971-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-26 | 1975-02-25 | 1975-08-27 | $7700.00 | Window Closed / Lapsed |