Patent US3272890A successfully refreshed from Google Patents.
US3272890A
Expired / Lapsed
US
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Compatible polyolefin and polyurethane composition
Assignee: Container Corp
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Filing: 1963-03-04
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Granted: 1966-09-13
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Expires: 1983-03-04
Abstract
No abstract record available.
Inventors
- 👤 Jr John M O'leary
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:32
CPC Classifications
C; C08; C08L; C08L23/00; C08L23/02; C08L23/04; C08L23/06; C08L23/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
A METHOD ARTICLE FORMED FROM A COMPATIBLE POLYMER COMPOSITION CONSISTING ESSENTIALLY OF A HOMOGENEOUS MIXTURE OF 85 TO 75 WEIGHT PERCENT OF A POLYOLEFIN SELECTED FROM THE GROUP CONSISTING OF POLYETHYLENE, POLYPROPYLENE, POLYETHYLENE COPOLYMER HAVING A MAJOR WEIGHT PERCENTAGE OF POLYETHYLENE, AND MIXTURES THEREOF, AND FROM 15 TO 25 WEIGHT PERCENT OF POLYURETHANE, WHICH COMPOSITION POSSESSES EXCELLENT RESISTANCE CHARACTERISTICS IN THE COLD STATE OF HYDROCARBON SOLVENTS, AND MAY BE READILY COMPRESSION MOLDED.
Claim 2
Independent Claim
72 words
A METHOD ARTICLE FORMED FROM A COMPATIBLE POLYMER COMPOSITION CONSISTING ESSENTIALLY OF A HOMOGENEOUS MIXTURE OF 85 TO 75 WEIGHT PERCENT OF A POLYOLEFIN SELECTED FROM THE GROUP CONSISTING OF POLYETHYLENE, POLYPROPYLENE, POLYETHYLENE COPOLYMER HAVING A MAJOR WEIGHT PERCENTAGE OF POLYETHYLENE, AND MIXTURES THEREOF, AND FROM 15 TO 25 WEIGHT PERCENT OF POLYURETHANE, WHICH COMPOSITION POSSESSES EXCELLENT RESISTANCE CHARACTERISTICS IN THE COLD STATE OF HYDROCARBON SOLVENTS, AND MAY BE READILY COMPRESSION MOLDED.
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) | 1969-09-12 | 1970-03-14 | 1970-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-12 | 1974-03-14 | 1974-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-12 | 1978-03-14 | 1978-09-13 | $7700.00 | Window Closed / Lapsed |