Patent US3242103A successfully refreshed from Google Patents.
US3242103A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reaction products of zinc salts with metal halides and their use as cyclic oxide polymerization catalysts
Assignee: Aerojet Rocketdyne Holdings Inc
•
Filing: 1960-10-25
•
Granted: 1966-03-22
•
Expires: 1980-10-25
Abstract
No abstract record available.
Inventors
- 👤 Uelzmann Heinz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:43
CPC Classifications
C; C08; C08G; C08G65/00; C08G65/02; C08G65/26; C08G65/2642; C08G65/269
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
65 words
A COMPOSITION USEFUL FOR THE POLYMERIZATION OF EPOXIDES AND OXETANES CONSISTING OF THE REACTION PRODUCT OF A AND B IN THE MOL RATIO OF FROM AB OUT 1.0:0.01 TO 1.0:1.0 AND IN AN INERT MEDIUM AT A TEMPERATURE OF FROM ABOUT 50 TO 450*C., A BEING A COMPOUND SELECTED FROM THE GROUP CONSISTING OF ZINC CYANIDE, ZINC OXIDE, BASIC ZINC CARBONATE, ZINC HYDROXIDE, ZNX AND
Claim 2
Dependent Claim
65 words
A COMPOSITION USEFUL FOR THE POLYMERIZATION OF EPOXIDES AND OXETANES CONSISTING OF THE REACTION PRODUCT OF A AND B IN THE MOL RATIO OF FROM AB OUT 1.0:0.01 TO 1.0:1.0 AND IN AN INERT MEDIUM AT A TEMPERATURE OF FROM ABOUT 50 TO 450*C., A BEING A COMPOUND SELECTED FROM THE GROUP CONSISTING OF ZINC CYANIDE, ZINC OXIDE, BASIC ZINC CARBONATE, ZINC HYDROXIDE, ZNX AND
Claim 3
Independent Claim
143 words
THE METHOD WHICH COMPRISES, UNDER AN INERT ATMOSPHERE, MIXING (I) AT LEAST ONE POLYMERIZABLE ORGANIC CYCLIC OXIDE MONOMER HAVING A SATURATED RING OF FROM 2 TO 3 CARBON ATOMS AND ONE OXYGEN ATOM AND A TOTAL OF FROM 2 TO 25 CARBON ATOMS IN ADMIXTURE WITH (II) A MINOR AMOUNT BY WEIGHT SUFFICIENT TO POLYMERIZE SAID CYCLIC OXIDE OF A CATALYTIC COMPOSITION AND POLYMERIZING SAID OXIDE INADMIXTURE WITH SAID COMPOSITION BY MEANS OF SAID RING TO FORM A POLYETHER HAVING A MOLECULAR WEIGHT OF AT LEAST 20,000, SAID COMPOSITION COMPRISING ESSENTIALLY THE REACTION PRODUCT OF A AND B IN THE MOLAR RATIO OF FROM ABOUT 1.0:0.01 TO 1.0:1.0 AND IN AN INERT MEDIUM AT A TEMPERATURE OF FROM ABOUT 50 TO 450*C., A BEING A COMPOUND SELECTED FROM THE GROUP CONSISTING OF ZINC CYANIDE, ZINC OXIDE, BASIC ZINC CARBONATE, ZINC HYDROXIDE, ZNX AND
Claim 4
Independent Claim
143 words
THE METHOD WHICH COMPRISES, UNDER AN INERT ATMOSPHERE, MIXING (I) AT LEAST ONE POLYMERIZABLE ORGANIC CYCLIC OXIDE MONOMER HAVING A SATURATED RING OF FROM 2 TO 3 CARBON ATOMS AND ONE OXYGEN ATOM AND A TOTAL OF FROM 2 TO 25 CARBON ATOMS IN ADMIXTURE WITH (II) A MINOR AMOUNT BY WEIGHT SUFFICIENT TO POLYMERIZE SAID CYCLIC OXIDE OF A CATALYTIC COMPOSITION AND POLYMERIZING SAID OXIDE INADMIXTURE WITH SAID COMPOSITION BY MEANS OF SAID RING TO FORM A POLYETHER HAVING A MOLECULAR WEIGHT OF AT LEAST 20,000, SAID COMPOSITION COMPRISING ESSENTIALLY THE REACTION PRODUCT OF A AND B IN THE MOLAR RATIO OF FROM ABOUT 1.0:0.01 TO 1.0:1.0 AND IN AN INERT MEDIUM AT A TEMPERATURE OF FROM ABOUT 50 TO 450*C., A BEING A COMPOUND SELECTED FROM THE GROUP CONSISTING OF ZINC CYANIDE, ZINC OXIDE, BASIC ZINC CARBONATE, ZINC HYDROXIDE, ZNX AND
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) | 1969-03-21 | 1969-09-20 | 1970-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-21 | 1973-09-20 | 1974-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-21 | 1977-09-20 | 1978-03-22 | $7700.00 | Window Closed / Lapsed |