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Patent US3211692A successfully refreshed from Google Patents.
US3211692A
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Ethylene polymeric compositions containing substituted ureas
Assignee: Gulf Oil Corp
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Filing: 1963-01-02
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Granted: 1965-10-12
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Expires: 1983-01-02
Abstract
No abstract record available.
Inventors
- 👤 Thomas R Hopkins
- 👤 Paul D Strickler
- 👤 William C Francis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:54
CPC Classifications
C; C07; C07C; C07C273/00; C07C273/18; C07C273/1809; C07C273/1818; C07C273/1827; C08; C08K; C08K5/00; C08K5/16; C08K5/21
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
A POLYMERIC COMPOSTION HAVING LOW BLOCKING TENDENCIES COMPRISING IN ADMIXTURE A MAJOR PORTION OF A NORMALLY SOLID ETHYLENE POLYMER AND FROM ABOUT 0.01 PERCENT TO ABOUT 1.0 PERCENT OF A SUBSTITUTED UREA, BASED ON THE WEIGHT OF ETHYLENE POLYMER, SAID ETHYLENE POLYMER BEING SELECTED FROM THE GROUP CONSISTING OF HOMOPOLYMERS OF ETHYLENE AND COPOLYMERS OF ETHYLENE AND UP TO ABOUT 0.5 MOLE OF A VINYL MONOMER COPOLYMERIZABLE THEREWITH, AND SAID SUBSTITUTED UREA HAVING THE FOLLOWING STRUCTURAL FORMULA:
Claim 2
Dependent Claim
77 words
A POLYMERIC COMPOSTION HAVING LOW BLOCKING TENDENCIES COMPRISING IN ADMIXTURE A MAJOR PORTION OF A NORMALLY SOLID ETHYLENE POLYMER AND FROM ABOUT 0.01 PERCENT TO ABOUT 1.0 PERCENT OF A SUBSTITUTED UREA, BASED ON THE WEIGHT OF ETHYLENE POLYMER, SAID ETHYLENE POLYMER BEING SELECTED FROM THE GROUP CONSISTING OF HOMOPOLYMERS OF ETHYLENE AND COPOLYMERS OF ETHYLENE AND UP TO ABOUT 0.5 MOLE OF A VINYL MONOMER COPOLYMERIZABLE THEREWITH, AND SAID SUBSTITUTED UREA HAVING THE FOLLOWING STRUCTURAL FORMULA:
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) | 1968-10-11 | 1969-04-12 | 1969-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-11 | 1973-04-12 | 1973-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-11 | 1977-04-12 | 1977-10-12 | $7700.00 | Window Closed / Lapsed |