US3083193A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pyrolysis of polyolefins in a water slurry
Assignee: Phillips Petroleum Co
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Filing: 1960-06-30
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Granted: 1963-03-26
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Expires: 1980-06-30
Abstract
No abstract record available.
Inventors
- 👤 Samuel J Kolner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:57
CPC Classifications
C; C08; C08F; C08F8/00; C08F8/50; Y; Y10; Y10S; Y10S159/00; Y10S159/10; Y10S526/00; Y10S526/914
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
A PROCESS FOR PYROLYZING A NORMALLY SOLID POLYMER OF A 1-OLEFIN TO FORM A PRODUCT HAVING A LOWER INHERENT VISCOSITY WHICH COMPRISES: (1) DISPERSING SAID POLYMER IN PARTICULATE FORM IN WATER, (2) HEATING THE RESULTING DISPERSION TO A TEMPERATURE OF AT LEAST ABOUT 500*F. FOR A PERIOD OF 1 TO 10 MINUTES WHILE MAINTAINING THE WATER IN THE LIQUID PHASE, (C) FLASHING WATER FROM THE HOT DISPERSION THEREBY REMOVING ODOR-FORMING MATERIALS FROM THE POLYMER, AND (4) RECOVERING SAID POLYMER REDUCED IN MOLECULAR WEIGHT AND ODOR.
Claim 2
Dependent Claim
85 words
A PROCESS FOR PYROLYZING A NORMALLY SOLID POLYMER OF A 1-OLEFIN TO FORM A PRODUCT HAVING A LOWER INHERENT VISCOSITY WHICH COMPRISES: (1) DISPERSING SAID POLYMER IN PARTICULATE FORM IN WATER, (2) HEATING THE RESULTING DISPERSION TO A TEMPERATURE OF AT LEAST ABOUT 500*F. FOR A PERIOD OF 1 TO 10 MINUTES WHILE MAINTAINING THE WATER IN THE LIQUID PHASE, (C) FLASHING WATER FROM THE HOT DISPERSION THEREBY REMOVING ODOR-FORMING MATERIALS FROM THE POLYMER, AND (4) RECOVERING SAID POLYMER REDUCED IN MOLECULAR WEIGHT AND ODOR.
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) | 1966-03-25 | 1966-09-24 | 1967-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-25 | 1970-09-24 | 1971-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-25 | 1974-09-24 | 1975-03-26 | $7700.00 | Window Closed / Lapsed |