US3017376A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crosslinking process
Assignee: WR Grace and Co
•
Filing: 1959-12-01
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Granted: 1962-01-16
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Expires: 1979-12-01
Abstract
No abstract record available.
Inventors
- 👤 Richard A Bafford
- 👤 Razmic S Gregorian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:21
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/0091; C08K5/04; C08K5/09; C08K5/098
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
THE PROCESS OF CROSSLINKING A MEMBER OF THE GROUP CONSISTING OF POLYETHYLENE AND A COPOLYMER OF ETHYLENE AND BUTYLENE WHICH COMPRISES SUBJECTING SAID MEMBER AT A TEMPERATURE ABOVE ITS RESPECTIVE MELTING POINT IN THE PRESENCE OF FREE OXYGEN TO THE ACTION OF A CROSSLINKING PROMOTER CONSISTING ESSENTIALLY OF AN ORGANO-METALLIC COMPOUND CONTAINING A TRANSITION METAL IN A VALENCE STATE LESS THAN 4 SELECTED FROM THE GROUP CONSISTING OF CO AND MN, SAID COMPOUND BEING SOLUBLE IN SAID POLYMERRIC GROUP MEMBER.
Claim 2
Dependent Claim
80 words
THE PROCESS OF CROSSLINKING A MEMBER OF THE GROUP CONSISTING OF POLYETHYLENE AND A COPOLYMER OF ETHYLENE AND BUTYLENE WHICH COMPRISES SUBJECTING SAID MEMBER AT A TEMPERATURE ABOVE ITS RESPECTIVE MELTING POINT IN THE PRESENCE OF FREE OXYGEN TO THE ACTION OF A CROSSLINKING PROMOTER CONSISTING ESSENTIALLY OF AN ORGANO-METALLIC COMPOUND CONTAINING A TRANSITION METAL IN A VALENCE STATE LESS THAN 4 SELECTED FROM THE GROUP CONSISTING OF CO AND MN, SAID COMPOUND BEING SOLUBLE IN SAID POLYMERRIC GROUP MEMBER.
References Cited (Backward Citations)
US2654717A
Cited
US2826570A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-01-15 | 1965-07-17 | 1966-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-15 | 1969-07-17 | 1970-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-15 | 1973-07-17 | 1974-01-16 | $7700.00 | Window Closed / Lapsed |