US3280093A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for producing a reduced transition metal halide
Assignee: Eastman Kodak Co
•
Filing: 1963-07-11
•
Granted: 1966-10-18
•
Expires: 1983-07-11
Abstract
No abstract record available.
Inventors
- 👤 Jr Harry W Coover
- 👤 Jr Newton H Shearer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:39
CPC Classifications
C; C08; C08F; C08F10/00; B; B01; B01J; B01J27/00; B01J27/06; C01; C01G; C01G1/00; C01G1/06; C01G23/00; C01G23/02; C01G23/026; Y; Y10; Y10S; Y10S526/00; Y10S526/907
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
102 words
A METHOD FOR PRODUCING A REDUCED TRANSITION METAL HALIDE WHICH COMPRISES REACTING A TRANSITION METAL HALIDE WITH A METAL FROM GROUP I OF THE PERIODIC TABLE TO FORM A HALIDE OF SAID METAL FROM GROUP I OF THE PERIODIC TABLE IN THE ABSENCE OF POLYMERIZABLE COMPOUND AND IN THE PRESENCE OF A COMPLEXING AGENT THAT FORMS A COMPLEX WITH SAID HALIDE OF SAID METAL FROM GROUP I OF THE PERIODIC TABLE, SAID COMPLEX BEING SUBSTANTIALLY SOLUBLE IN SAID COMPLEXING AGENT, SAID REDUCED TRANSITION METAL HALIDE BEING SUBSTANTIALLY INSOLUBLE IN SAID COMPLEXING AGENT, AND RECOVERING REDUCED TRANSITION METAL HALIDE FROM RESULTING REACTION MIXTURE.
Claim 2
Independent Claim
102 words
A METHOD FOR PRODUCING A REDUCED TRANSITION METAL HALIDE WHICH COMPRISES REACTING A TRANSITION METAL HALIDE WITH A METAL FROM GROUP I OF THE PERIODIC TABLE TO FORM A HALIDE OF SAID METAL FROM GROUP I OF THE PERIODIC TABLE IN THE ABSENCE OF POLYMERIZABLE COMPOUND AND IN THE PRESENCE OF A COMPLEXING AGENT THAT FORMS A COMPLEX WITH SAID HALIDE OF SAID METAL FROM GROUP I OF THE PERIODIC TABLE, SAID COMPLEX BEING SUBSTANTIALLY SOLUBLE IN SAID COMPLEXING AGENT, SAID REDUCED TRANSITION METAL HALIDE BEING SUBSTANTIALLY INSOLUBLE IN SAID COMPLEXING AGENT, AND RECOVERING REDUCED TRANSITION METAL HALIDE FROM RESULTING REACTION MIXTURE.
Claim 3
Dependent Claim
74 words
IN A CATALYTIC PROCESS FOR THE POLYMERIZATION OF PROPYLENE TO FORM SOLID, CRYSTALLINE POLYMER WHEREIN TITANIUM TRICHLORIDE IS EMPLOYED AS A COMPONENT OF THE CATALYST, THE IMPROVEMENT WHICH COMPRISES EMPLOYING TITANIUM TRICHLORIDE PREPARED BY REACTING TITANIUM TETRACHLORIDE WITH SODIUM AT A TEMPERATURE WITHIN THE RANGE OF -80 TO 270*C. IN THE PRESENCE OF HEXAMETHYL PHOSPHORIC TRIAMIDE AND SEPARATING TITANIUM TRICHLORIDE FROM HEXAMETHYL PHOSPHORIC TRIAMIDE CONTAINING DISSOLVED COMPLEX OF HEXAMETHYL PHOSPHORIC TRIAMIDE AND SODIUM CHLORIDE.
Claim 4
Dependent Claim
74 words
IN A CATALYTIC PROCESS FOR THE POLYMERIZATION OF PROPYLENE TO FORM SOLID, CRYSTALLINE POLYMER WHEREIN TITANIUM TRICHLORIDE IS EMPLOYED AS A COMPONENT OF THE CATALYST, THE IMPROVEMENT WHICH COMPRISES EMPLOYING TITANIUM TRICHLORIDE PREPARED BY REACTING TITANIUM TETRACHLORIDE WITH SODIUM AT A TEMPERATURE WITHIN THE RANGE OF -80 TO 270*C. IN THE PRESENCE OF HEXAMETHYL PHOSPHORIC TRIAMIDE AND SEPARATING TITANIUM TRICHLORIDE FROM HEXAMETHYL PHOSPHORIC TRIAMIDE CONTAINING DISSOLVED COMPLEX OF HEXAMETHYL PHOSPHORIC TRIAMIDE AND SODIUM CHLORIDE.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-17 | 1970-04-18 | 1970-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-17 | 1974-04-18 | 1974-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-17 | 1978-04-18 | 1978-10-18 | $7700.00 | Window Closed / Lapsed |