US3157610A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Petroleum wax-ethylene alkene coating composition
Assignee: Standard Oil Co
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Filing: 1960-12-23
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Granted: 1964-11-17
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Expires: 1980-12-23
Abstract
No abstract record available.
Inventors
- 👤 Eugene E Richardson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:09
CPC Classifications
D; D21; D21H; D21H19/00; D21H19/10; D21H19/14; D21H19/18; C; C09; C09D; C09D191/00; C09D191/06; C09D191/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
A COATING COMPOSITION CHARACTERIZED AS BEING CAPABLE OF FORMING A NON-BRITTLE COATING ON PAPER BOARD FOOD CONTAINERS, WHICH COATING RETAINS FLEXIBILITY AT LOW TEMPERATURES, CONSISTING OF (A) A PARAFFINWAX HAVING A MELTING POINT OF FROM ABOUT 120 TO ABOUT 150*F. WHICH WHEN APPLIED BY ITSELF TO SUCH FOOD CONTAINERS FORMS A BRITTLE COATING THEREON, AND (B) FROM ABOUT 0.01 TO ABOUT 5 PERCENT OF A COPOLYMER HAVING A MOLECULAR WEIGHT OF FROM ABOUT 30,000 TO ABOUT 50,000 SELECTED FROM THE GROUP CONSISTING OF AN ETHYLENE-PROPYLENE COPOLYMER CONTAINING FROM ABOUT 5 TO ABOUT 8 MOLE PERCENT PROPYLENE AND ANETHYLENE-BUTENE-1 COPOLYMER CONTAINING FROM ABOUT 3 TO ABOUT 5 MOLE PERCENT OF BUTENE-1, SAID COPOLYMER OVERCOMING THE BRITTLE CHARACTERISTICS OF SAID PARFFIN WAX.
Claim 2
Dependent Claim
120 words
A COATING COMPOSITION CHARACTERIZED AS BEING CAPABLE OF FORMING A NON-BRITTLE COATING ON PAPER BOARD FOOD CONTAINERS, WHICH COATING RETAINS FLEXIBILITY AT LOW TEMPERATURES, CONSISTING OF (A) A PARAFFINWAX HAVING A MELTING POINT OF FROM ABOUT 120 TO ABOUT 150*F. WHICH WHEN APPLIED BY ITSELF TO SUCH FOOD CONTAINERS FORMS A BRITTLE COATING THEREON, AND (B) FROM ABOUT 0.01 TO ABOUT 5 PERCENT OF A COPOLYMER HAVING A MOLECULAR WEIGHT OF FROM ABOUT 30,000 TO ABOUT 50,000 SELECTED FROM THE GROUP CONSISTING OF AN ETHYLENE-PROPYLENE COPOLYMER CONTAINING FROM ABOUT 5 TO ABOUT 8 MOLE PERCENT PROPYLENE AND ANETHYLENE-BUTENE-1 COPOLYMER CONTAINING FROM ABOUT 3 TO ABOUT 5 MOLE PERCENT OF BUTENE-1, SAID COPOLYMER OVERCOMING THE BRITTLE CHARACTERISTICS OF SAID PARFFIN WAX.
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) | 1967-11-17 | 1968-05-18 | 1968-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-17 | 1972-05-18 | 1972-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-17 | 1976-05-18 | 1976-11-17 | $7700.00 | Window Closed / Lapsed |