US3280096A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymerization catalysts
Assignee: Cabot Corp
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Filing: 1963-08-05
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Granted: 1966-10-18
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Expires: 1983-08-05
Abstract
No abstract record available.
Inventors
- 👤 James C Mackenzie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:51
CPC Classifications
C; C08; C08F; C08F36/00; C08F36/02; C08F36/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
152 words
A PROCESS FOR POLYMERIZING A SUBSTANCE CHOSEN FROM THE GROUP CONSISTING OF A MON0-OLEFIN,MONO-OLEFINS, A DI-OLEFIN, DIOLEFINS AND MIXTURES THEREOF WHICH COMPRISES HEATING TO TEMPERATURES BETWEEN ABOUT 100*C. AND ABOUT 200*C. AN INORGANIC SOLID HAVING AN AVERAGE PARTICLE DIAMETER OF LESS THAN ABOUT 0.1 MICRON AND HAVING CHEMICALLY BOUND TO THE SURFACE THEREOF AT LEAST ABOUT 2X10-5 EQUIVALENTS PER GRAM OF SURFACE STRUCTURES: (A) CONFORMING TO THE FORMULA: HCRDM WHEREIN M IS A QUADRIVALENT METAL OF GROUP IVB OF THE MENDELEEV PERIODIC TABLE; EACH H IS HYDROGEN; C IS A NUMBER FROM 2 TO 3; R IS CHOSEN FROM THE GROUP CONSISTING OF ANY HYDROCARBON RADICAL, ALKOXY RADICAL AND ARYLOXY RADICAL; D IS A NUMBER FROM 0 TO 1; AND WHEREIN M IS CHEMICALLY BOUND DIRECTLY TO AN OXYGEN ATOM IN THE SURFACE OF SAID INORGANIC SOLID, AND AT LEAST ABOUT 2X10-5 EQUIVALENTS PER GRAM OF STRUCTURES (B) CONFORMING TO THE FORMULA:
Claim 2
Dependent Claim
152 words
A PROCESS FOR POLYMERIZING A SUBSTANCE CHOSEN FROM THE GROUP CONSISTING OF A MON0-OLEFIN,MONO-OLEFINS, A DI-OLEFIN, DIOLEFINS AND MIXTURES THEREOF WHICH COMPRISES HEATING TO TEMPERATURES BETWEEN ABOUT 100*C. AND ABOUT 200*C. AN INORGANIC SOLID HAVING AN AVERAGE PARTICLE DIAMETER OF LESS THAN ABOUT 0.1 MICRON AND HAVING CHEMICALLY BOUND TO THE SURFACE THEREOF AT LEAST ABOUT 2X10-5 EQUIVALENTS PER GRAM OF SURFACE STRUCTURES: (A) CONFORMING TO THE FORMULA: HCRDM WHEREIN M IS A QUADRIVALENT METAL OF GROUP IVB OF THE MENDELEEV PERIODIC TABLE; EACH H IS HYDROGEN; C IS A NUMBER FROM 2 TO 3; R IS CHOSEN FROM THE GROUP CONSISTING OF ANY HYDROCARBON RADICAL, ALKOXY RADICAL AND ARYLOXY RADICAL; D IS A NUMBER FROM 0 TO 1; AND WHEREIN M IS CHEMICALLY BOUND DIRECTLY TO AN OXYGEN ATOM IN THE SURFACE OF SAID INORGANIC SOLID, AND AT LEAST ABOUT 2X10-5 EQUIVALENTS PER GRAM OF STRUCTURES (B) CONFORMING TO THE FORMULA:
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) | 1969-10-17 | 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 |