Patent US3291862A successfully refreshed from Google Patents.
US3291862A
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Chlorinated polyolefin polymer mixtures
Assignee: Ingredion Inc
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Filing: 1962-08-03
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Granted: 1966-12-13
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Expires: 1982-08-03
Abstract
No abstract record available.
Inventors
- 👤 Walter B Armour
- 👤 Michael P Diamantopoulos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:29
CPC Classifications
C; C08; C08F; C08F8/00; C08F8/18; C08F8/20; Y; Y10; Y10S; Y10S8/00; Y10S8/09
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
A METHOD FOR THE PREPARATION OF CHLORINATED POLYOLEFIN POLYMER MIXTURES COMPRISING CHLORINATING AN ORGANIC SOLVENT SOLUTION OF A MIXTURE OF ATACTIC POLYPROPYLENE AND AN ETHYLENE:PROPYLENE COPOLYMER, SAID CHLORINATION BEING CONDUCTED IN THE PRESENCE OF A FREE RADICAL CATALYST; WHEREIN THE RATIO OF ATACTIC POLYPROPYLENE TO ETHYLENE:PROPYLENE COPOLYMER RANGES FROM 30:70 TO 70:30; WHEREIN SAID ETHYLENE:POPYLENE COPOLYMER HAS A RATIO OF ETHYLENE: PROPYLENE RANGING FROM 60:40 TO 70:30; AND WHEREIN THE AMOUNT OF CHLORINE IN THE RESULTING CHLORINATED POLYMER MIXTURE RANGES FROM 10 TO 60%, BY WEIGHT, OF SAID POLYMER MIXTURE.
Claim 2
Independent Claim
90 words
A METHOD FOR THE PREPARATION OF CHLORINATED POLYOLEFIN POLYMER MIXTURES COMPRISING CHLORINATING AN ORGANIC SOLVENT SOLUTION OF A MIXTURE OF ATACTIC POLYPROPYLENE AND AN ETHYLENE:PROPYLENE COPOLYMER, SAID CHLORINATION BEING CONDUCTED IN THE PRESENCE OF A FREE RADICAL CATALYST; WHEREIN THE RATIO OF ATACTIC POLYPROPYLENE TO ETHYLENE:PROPYLENE COPOLYMER RANGES FROM 30:70 TO 70:30; WHEREIN SAID ETHYLENE:POPYLENE COPOLYMER HAS A RATIO OF ETHYLENE: PROPYLENE RANGING FROM 60:40 TO 70:30; AND WHEREIN THE AMOUNT OF CHLORINE IN THE RESULTING CHLORINATED POLYMER MIXTURE RANGES FROM 10 TO 60%, BY WEIGHT, OF SAID POLYMER MIXTURE.
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) | 1969-12-12 | 1970-06-13 | 1970-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-12 | 1974-06-13 | 1974-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-12 | 1978-06-13 | 1978-12-13 | $7700.00 | Window Closed / Lapsed |