US3397155A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymerization of monoepoxides employing high surface area phosphate catalysts
Assignee: Mobil Oil AS
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Filing: 1965-08-26
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Granted: 1968-08-13
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Expires: 1985-08-26
Abstract
No abstract record available.
Inventors
- 👤 Paul A Naro
- 👤 Robert D Offenhauer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:46
CPC Classifications
C; C08; C08G; C08G65/00; C08G65/02; C08G65/26; C08G65/2642; C08G65/2645; C08G65/266; C08G65/04; C08G65/06; C08G65/08; C08G65/10; C08G65/12; C08G65/2654
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
A PROCESS WHICH COMPRISES POLYMERIZING A VICINAL MONOEPOXIDE COMPOUND FREE OF ETHYLENIC AND ACETYLENIC UNSATURATION IN THE PRESENCE OF FROM ABOUT 0.005 TO ABOUT 15 WEIGHT PERCENT, BASED ON THE WEIGHT OF THE MONOEPOXIDE COMPOUND, OF A METAL PHOSPHATE CATALYST WHICH HAS A SURFACE AREA IN EXCESS OF ABOUT 75 SQUARE METERS PER GRAM, WHEREIN THE METAL PORTION OF SAID METAL PHOSPHATE IS SELECTED FROM THE GROUP CONSISTING OF BORON, ALUMIUM, GALLIUM, INDIUM AND THALLIUM, SAID METAL PHOSPHATE BEING PREPARED BY REACTING A COMPOUND SELECTED FROM THE GROUP CONSISTING OF ORTHOPHOSPHORIC ACID AND DIAMMONIUM HYDROGEN PHOSPHATE WITH A HALIDE OF SAID METAL, NEUTRALIZING THE REACTION PRODUCT, AND DRYING AND CALCINING THE NEUTRALIZED REACTION PRODUCT, AT A POLYMERIZATION TEMPERATURE FROM ABOUT 20*C. TO ABOUT 150*C., FOR A PERIOD OF TIME SUFFICIENT TO PRODUCE A SOLID POLYMER.
Claim 2
Dependent Claim
135 words
A PROCESS WHICH COMPRISES POLYMERIZING A VICINAL MONOEPOXIDE COMPOUND FREE OF ETHYLENIC AND ACETYLENIC UNSATURATION IN THE PRESENCE OF FROM ABOUT 0.005 TO ABOUT 15 WEIGHT PERCENT, BASED ON THE WEIGHT OF THE MONOEPOXIDE COMPOUND, OF A METAL PHOSPHATE CATALYST WHICH HAS A SURFACE AREA IN EXCESS OF ABOUT 75 SQUARE METERS PER GRAM, WHEREIN THE METAL PORTION OF SAID METAL PHOSPHATE IS SELECTED FROM THE GROUP CONSISTING OF BORON, ALUMIUM, GALLIUM, INDIUM AND THALLIUM, SAID METAL PHOSPHATE BEING PREPARED BY REACTING A COMPOUND SELECTED FROM THE GROUP CONSISTING OF ORTHOPHOSPHORIC ACID AND DIAMMONIUM HYDROGEN PHOSPHATE WITH A HALIDE OF SAID METAL, NEUTRALIZING THE REACTION PRODUCT, AND DRYING AND CALCINING THE NEUTRALIZED REACTION PRODUCT, AT A POLYMERIZATION TEMPERATURE FROM ABOUT 20*C. TO ABOUT 150*C., FOR A PERIOD OF TIME SUFFICIENT TO PRODUCE A SOLID POLYMER.
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) | 1971-08-13 | 1972-02-12 | 1972-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-13 | 1976-02-12 | 1976-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-13 | 1980-02-12 | 1980-08-13 | $7700.00 | Window Closed / Lapsed |