US2947718A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymerization of vinyl ester in the presence of polyethylene and product therefrom
Assignee: Union Carbide Corp
•
Filing: 1954-08-30
•
Granted: 1960-08-02
•
Expires: 1974-08-30
Abstract
No abstract record available.
Inventors
- 👤 Frank M Rugg
- 👤 James E Potts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:24
CPC Classifications
C; C08; C08F; C08F255/00; C08F255/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
THE PROCESS WHICH CONSISTS IN REACTING IN THE PRESENCE OF A CATALYST SELECTED FROM THE GROUP CONSISTING OF BENZOLYL PEROXIDE, HYDROXYHEPTYL PEROXIDE, METHYLETHYL KETONE PEROXIDE, CYCLOHEXANONE PEROXIDE, CUMENE HYDROPEROXIDE, TETRT-BUTYL HYDROPEROXIDE, P-CHLOROBENZOYL PEROXIDE, DI-TERT-BUTYL PEROXIDE, PERACETIC ACID, DI-TERTBUTYL DIPERPHTHALATE, A PREFORMED NORMALLY SOLID POLYETHYLENE AND A VINYL ESTER OF A CARBOXYLIC ACID, SAID POLYETHYLENE BEING DISSOLVELD IN AN AROMATIC SOLVENT THEREFOR, TO FORM A HOMOGENEOUS MIXTURE COMPRISING ETHYLENE HOMOPOLYMER, A HOMOPOLYMER OF THE VINYL ESTER, AND A GRAFT COPOLYMER OF POLYETHYLENE AND THE VINYL ESTER, AND THEREAFTER REMOVING SAID AROMATIC SOLVENT.
Claim 2
Dependent Claim
91 words
THE PROCESS WHICH CONSISTS IN REACTING IN THE PRESENCE OF A CATALYST SELECTED FROM THE GROUP CONSISTING OF BENZOLYL PEROXIDE, HYDROXYHEPTYL PEROXIDE, METHYLETHYL KETONE PEROXIDE, CYCLOHEXANONE PEROXIDE, CUMENE HYDROPEROXIDE, TETRT-BUTYL HYDROPEROXIDE, P-CHLOROBENZOYL PEROXIDE, DI-TERT-BUTYL PEROXIDE, PERACETIC ACID, DI-TERTBUTYL DIPERPHTHALATE, A PREFORMED NORMALLY SOLID POLYETHYLENE AND A VINYL ESTER OF A CARBOXYLIC ACID, SAID POLYETHYLENE BEING DISSOLVELD IN AN AROMATIC SOLVENT THEREFOR, TO FORM A HOMOGENEOUS MIXTURE COMPRISING ETHYLENE HOMOPOLYMER, A HOMOPOLYMER OF THE VINYL ESTER, AND A GRAFT COPOLYMER OF POLYETHYLENE AND THE VINYL ESTER, AND THEREAFTER REMOVING SAID AROMATIC SOLVENT.
References Cited (Backward Citations)
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US2175672A
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US2405817A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-02 | 1964-02-01 | 1964-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-02 | 1968-02-01 | 1968-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-02 | 1972-02-01 | 1972-08-02 | $7700.00 | Window Closed / Lapsed |