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US3086958A
Expired / Lapsed
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Blends of high pressure type polyethylene with cracked highly crystalline 1-olefin polymers
Assignee: Phillips Petroleum Co
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Filing: 1958-11-17
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Granted: 1963-04-23
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Expires: 1978-11-17
Abstract
No abstract record available.
Inventors
- 👤 Peter J Canterino
- 👤 Robert J Martinovich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:24
CPC Classifications
C; C08; C08L; C08L23/00; C08L23/02; C08L23/04; C08L23/06; C08F; C08F8/00; C08F8/50; C08F2810/00; C08F2810/10; C08L2205/00; C08L2205/02; C08L2205/03; C08L2205/035; C08L91/00; C08L91/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
AS A COMPOSITION OF MATTER, A BLEND OF (1) A PRYOLYSIS PRODUCT OBTAINED BY THERMALLY DECOMPOSING AN ETHYLENE POLYMER HAVING A DENSITY RANGING FROM 0.930 TO 0.990 AND A MOLECULAR WEIGHT GREATER THAN 25,000 SAID DECOMPOSITION BEING EFFECTED BY HEATING SUCH A POLYMER TO A TEMPERATURE IN THE RANGE OF 600 TO 900*F. TO PRODUCE A PYROLZED POLYMERIC MATERIAL HAVING A MOLECULAR WEIGHT IN THE RANGE 2,000 TO 12,000 AND (2) POLYETHYLENE HAVING A CRYSTALLINITY NOT GREATER THAN 65 PERCENT AND A SOFTENING POINT LESS THAN 215*F., SAID PRODUCT OF DECOMPOSITION CONSTITUTING FROM 5 TO 75 WEIGHT PARTS PER 100 WEIGHT PARTS OF SAID BLEND AND SAID POLYETHYLENE CONSTITUTING FROM 95 TO 25 WEIGHT PARTS.
Claim 2
Dependent Claim
115 words
AS A COMPOSITION OF MATTER, A BLEND OF (1) A PRYOLYSIS PRODUCT OBTAINED BY THERMALLY DECOMPOSING AN ETHYLENE POLYMER HAVING A DENSITY RANGING FROM 0.930 TO 0.990 AND A MOLECULAR WEIGHT GREATER THAN 25,000 SAID DECOMPOSITION BEING EFFECTED BY HEATING SUCH A POLYMER TO A TEMPERATURE IN THE RANGE OF 600 TO 900*F. TO PRODUCE A PYROLZED POLYMERIC MATERIAL HAVING A MOLECULAR WEIGHT IN THE RANGE 2,000 TO 12,000 AND (2) POLYETHYLENE HAVING A CRYSTALLINITY NOT GREATER THAN 65 PERCENT AND A SOFTENING POINT LESS THAN 215*F., SAID PRODUCT OF DECOMPOSITION CONSTITUTING FROM 5 TO 75 WEIGHT PARTS PER 100 WEIGHT PARTS OF SAID BLEND AND SAID POLYETHYLENE CONSTITUTING FROM 95 TO 25 WEIGHT PARTS.
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) | 1966-04-22 | 1966-10-22 | 1967-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-22 | 1970-10-22 | 1971-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-22 | 1974-10-22 | 1975-04-23 | $7700.00 | Window Closed / Lapsed |