US3027346A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing composition containing graft copolymer of polyethylene and an acrylate monomer
Assignee: Union Carbide Corp
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Filing: 1956-11-15
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Granted: 1962-03-27
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Expires: 1976-11-15
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 17:30
CPC Classifications
C; C08; C08F; C08F255/00; C08F255/02; Y; Y10; Y10S; Y10S8/00; Y10S8/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
THE PROCESS WHICH CONSISTS IN HEATING IN CONTACT WITH A CATALYST SELECTED FROM THE GROUP CONSISTING OF BENZOYL PEROXIDE, 2,4-DICHLOROBENZOYL, PEROXIDE, ACETYL PEROXIDE, TERT-BUTYL HYDROPEROXIDE, TERT-BUTYL PEROXIDE, LAURYL PEROXIDE, PERACETIC ACID, TERT-BUTYL PERMALEIC ACID, AND MIXTURES THEREOF, A PREFORMED NORMALLY SOLID POLYETHYLENE, AND A MONOMERIC CARBOXYLIC ACID ESTER SELECTED FROM THE GROUP CONSISTING OF LOWER ALKYL ESTERS OF ACRYLIC ACID AND LOWER ALKYL ESTER OF METHACRYLIC ACID, SAID POLYETHYLENE BEING DISSOLVED IN AN AROMATIC SOLVENT THEREFOR, TO FORM A HOMOGENEOUS MIXTURE COMPRISING ETHYLENE HOMOPOLYMER, A SECOND HOMOPOLYMER OF THE SAID CARBOXYLIC ACID ESTER, AND A GRAFT COPOLYMER OF POLYETHYLENE AND THE SAID CARBOXYLIC ACID ESTER, AND THEREAFTER REMOVING SAID AROMATIC SOLVENT.
Claim 2
Dependent Claim
111 words
THE PROCESS WHICH CONSISTS IN HEATING IN CONTACT WITH A CATALYST SELECTED FROM THE GROUP CONSISTING OF BENZOYL PEROXIDE, 2,4-DICHLOROBENZOYL, PEROXIDE, ACETYL PEROXIDE, TERT-BUTYL HYDROPEROXIDE, TERT-BUTYL PEROXIDE, LAURYL PEROXIDE, PERACETIC ACID, TERT-BUTYL PERMALEIC ACID, AND MIXTURES THEREOF, A PREFORMED NORMALLY SOLID POLYETHYLENE, AND A MONOMERIC CARBOXYLIC ACID ESTER SELECTED FROM THE GROUP CONSISTING OF LOWER ALKYL ESTERS OF ACRYLIC ACID AND LOWER ALKYL ESTER OF METHACRYLIC ACID, SAID POLYETHYLENE BEING DISSOLVED IN AN AROMATIC SOLVENT THEREFOR, TO FORM A HOMOGENEOUS MIXTURE COMPRISING ETHYLENE HOMOPOLYMER, A SECOND HOMOPOLYMER OF THE SAID CARBOXYLIC ACID ESTER, AND A GRAFT COPOLYMER OF POLYETHYLENE AND THE SAID CARBOXYLIC ACID ESTER, AND THEREAFTER REMOVING SAID AROMATIC SOLVENT.
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) | 1965-03-26 | 1965-09-25 | 1966-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-26 | 1969-09-25 | 1970-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-26 | 1973-09-25 | 1974-03-27 | $7700.00 | Window Closed / Lapsed |