Patent US2996034A successfully refreshed from Google Patents.
Patent US3054786A successfully refreshed from Google Patents.
US3054786A
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Chemical composition and process for polymerizing halogen-containing monomers
Assignee: Diamond Shamrock Corp
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Filing: 1957-01-09
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Granted: 1962-09-18
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Expires: 1977-01-09
Abstract
No abstract record available.
Inventors
- 👤 Ward J Burkholder
- 👤 Earnest R Henderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:06
CPC Classifications
C; C08; C08F; C08F36/00; C08F14/00; C08F14/02; C08F14/04; C08F14/06; C08F2/00; C08F2/12; C08F2/16; C08F2/18; Y; Y10; Y10S; Y10S526/00; Y10S526/91
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
A METHOD OF PREPARING A POLYMER CHARACTERIZED BY IMPOVED LUBRICITY, HEAT STABILITY AND LIGH STABILITY WHICH COMPRISES SUBJECTING TO SUSPENSION POLYMERIZATION CONDITIONS IN AN AQUEOUS MEDIUM, THE FOLLOWING INGREDIENTS: A. A POLYMERIZABLE HALOGEN-CONTAINING ETHYLENIC MONOMER B. A SUSPENDING AGENT SELECTED FROM THE GROUP CONSISTING OF GELATIN, METHYL CELLULOSE, POLYVINYL ALCOHOL, GUM TRAGACANTH AND SODIUM ALGINATES C. A METALLIC SALT OF A CARBOXYLIC ACID D. AN ESTER OF A CARBOXYLIC ACID AND A POLYHYDRODXY COMPOUND AND RECOVERING THE THUS-FORMED POLYMER.
Claim 2
Independent Claim
79 words
A METHOD OF PREPARING A POLYMER CHARACTERIZED BY IMPOVED LUBRICITY, HEAT STABILITY AND LIGH STABILITY WHICH COMPRISES SUBJECTING TO SUSPENSION POLYMERIZATION CONDITIONS IN AN AQUEOUS MEDIUM, THE FOLLOWING INGREDIENTS: A. A POLYMERIZABLE HALOGEN-CONTAINING ETHYLENIC MONOMER B. A SUSPENDING AGENT SELECTED FROM THE GROUP CONSISTING OF GELATIN, METHYL CELLULOSE, POLYVINYL ALCOHOL, GUM TRAGACANTH AND SODIUM ALGINATES C. A METALLIC SALT OF A CARBOXYLIC ACID D. AN ESTER OF A CARBOXYLIC ACID AND A POLYHYDRODXY COMPOUND AND RECOVERING THE THUS-FORMED POLYMER.
References Cited (Backward Citations)
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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) | 1965-09-17 | 1966-03-19 | 1966-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-17 | 1970-03-19 | 1970-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-17 | 1974-03-19 | 1974-09-18 | $7700.00 | Window Closed / Lapsed |