US2900378A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for modification of olefin polymers
Assignee: Lubrizol Corp
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Filing: 1956-12-10
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Granted: 1959-08-18
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Expires: 1976-12-10
Abstract
No abstract record available.
Inventors
- 👤 Clark O Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:15
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/04; C08; C08F; C08F8/00; C08F8/12; C08F8/26; C08F8/40; C08F8/42; C08K; C08K5/00; C08K5/0008; C08K5/0016; C08L; C08L27/00; C08L27/02; C08L27/04; C08L27/06; C08F2800/00; C08F2800/10; C08L23/00; C08L23/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
THE PROCESS OF PREPARING PHOSPHORUS-, SULFUR, AND CHLORINE-CONTAINING COMPOSITIONS WHICH COMPRISES ADDING PHOSPHORUS TRICHLORIDE TO A MIXTURE OF SULFUR AND A SUBSTANTIALLY ALIPHARIC OLEFIN POLYMER AT A TEMPERATURE ABOVE 140* C. BUT BELOW THE DECOMPOSITION POINT OF THE COMPONENTS OF THE REACTION MIXTURE, THE MOLE RATIO OF THE TOTAL AMOUNT OF SULFUR USED TO THE TOTAL AMOUNT OF PHOSPHORUS TRICHLORIDE USED BEING AT LEAST 1:1 AND THE MOLE RATIO OF THE TOTAL AMOUNT OF PHOSPHORUS TRICHLORIDE USED TO THE TOTAL AMOUNT OF SUBSTANTIALLY ALIPHATIC OLEFIN POLYMER USED BEING AT LEAST 1:1.
Claim 2
Dependent Claim
91 words
THE PROCESS OF PREPARING PHOSPHORUS-, SULFUR, AND CHLORINE-CONTAINING COMPOSITIONS WHICH COMPRISES ADDING PHOSPHORUS TRICHLORIDE TO A MIXTURE OF SULFUR AND A SUBSTANTIALLY ALIPHARIC OLEFIN POLYMER AT A TEMPERATURE ABOVE 140* C. BUT BELOW THE DECOMPOSITION POINT OF THE COMPONENTS OF THE REACTION MIXTURE, THE MOLE RATIO OF THE TOTAL AMOUNT OF SULFUR USED TO THE TOTAL AMOUNT OF PHOSPHORUS TRICHLORIDE USED BEING AT LEAST 1:1 AND THE MOLE RATIO OF THE TOTAL AMOUNT OF PHOSPHORUS TRICHLORIDE USED TO THE TOTAL AMOUNT OF SUBSTANTIALLY ALIPHATIC OLEFIN POLYMER USED BEING AT LEAST 1:1.
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) | 1962-08-17 | 1963-02-16 | 1963-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-17 | 1967-02-16 | 1967-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-17 | 1971-02-16 | 1971-08-18 | $7700.00 | Window Closed / Lapsed |