US3900424A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalyst for copolymerizing epoxy compounds with carbon dioxide
Assignee: Nok Corp
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Filing: 1973-07-18
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Granted: 1975-08-19
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Expires: 1993-07-18
Abstract
Abstract A catalyst composition and a process for preparing same comprising the reaction product of (a) an organometallic compound having the general formula R''nM, wherein n is an integer, at least one R'' is an alkyl group, an alicyclic group, or halogen or hydroxy or alkoxy radicals, or hydrogen, the remaining R'' groups are alkyl groups, alicyclic groups, alkaryl groups, aralkyl groups, aryl groups, or halogen or hydroxy or alkoxy radicals, and M is a metal of group II or group III of the periodic Table, (b) a co-catalyst component which is sulfur or a compound containing active hydrogen atoms, and (c) carbon dioxide. The catalyst composition is used in preparing copolymers of epoxy compounds with carbon dioxide.
Inventors
- 👤 Shohei Inoue
- 👤 Masaki Kanbe
- 👤 Tadamichi Takada
- 👤 Nobuyuki Miyazaki
- 👤 Masanori Yokokawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 05:27
CPC Classifications
C; C08; C08G; C08G64/00; C08G64/02; C08G64/20; C08G64/32; C08G64/34
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
188 words
A CATALYST COMPOSITION CONSISTING ESSENTIALLY OF THE REACTION PRODUCT OF (A) AN ORGANOMETALLIC COMPOUND HAVING THE GENERAL FORMULA R''NM WHEREIN N IS AN INTEGER, AT LEAST ONE R'' IS SELECTED FROM THE GROUP CONSISTING OF AN ALKYL GROUP, HALOGEN, HYDROXY, ALKOXY AND HYDROGEN, THE REMAININ R'' GROUPS ARE SELECTED FROM THE GROUP CONSISTING OF ALKYL GROUPS, ALKARYL GROUPS ARLKYL GROUPS, ARYL GROUPS, HALOGEN, HYDROXY AND ALKOXY, AND M IS A METAL ELEMENT SELECTED FROM THE GROUP CONSISTING OF THOSE METAL ELEMENTS IN GROUPS II AND III OF THE PERIODIC TABLE, (B) AT LEAST ONE CO-CATALYST COMPONENT SELECTED FROM THE GROUP CONSISTING OF SULFUR AND COMPOUNDS CONTAINING ONE OR MORE ACTIVE HYDROGEN ATOMS IN A MOLAR RATIO TO THE ORGANOMETALLIC COMPOUND WITHIN THE RANGE OF FROM ABOUT 0.1 TO ABOUT 5.0, AND (C) CARBON DIOXIDE GAS UNDER A PRESSURE AT ROOM TEMPERATURE OF FROM ABOUT 5 TO ABOUT 50 KG/CM2 AND IN A MOLAR RATIO TO THE ORGANOMETALLIC COMPOUND OF AT LEAST 1, SAID REACTANTS HAVING BEEN REACTED TOGETHER AT A TEMPERATURE BETWEEN ROOM TEMPERATURE AND ABOUT 300*C FOR A TIME OF FROM ABOUT 0.1 TO ABOUT 100 HOURS.
Claim 2
Dependent Claim
188 words
A CATALYST COMPOSITION CONSISTING ESSENTIALLY OF THE REACTION PRODUCT OF (A) AN ORGANOMETALLIC COMPOUND HAVING THE GENERAL FORMULA R''NM WHEREIN N IS AN INTEGER, AT LEAST ONE R'' IS SELECTED FROM THE GROUP CONSISTING OF AN ALKYL GROUP, HALOGEN, HYDROXY, ALKOXY AND HYDROGEN, THE REMAININ R'' GROUPS ARE SELECTED FROM THE GROUP CONSISTING OF ALKYL GROUPS, ALKARYL GROUPS ARLKYL GROUPS, ARYL GROUPS, HALOGEN, HYDROXY AND ALKOXY, AND M IS A METAL ELEMENT SELECTED FROM THE GROUP CONSISTING OF THOSE METAL ELEMENTS IN GROUPS II AND III OF THE PERIODIC TABLE, (B) AT LEAST ONE CO-CATALYST COMPONENT SELECTED FROM THE GROUP CONSISTING OF SULFUR AND COMPOUNDS CONTAINING ONE OR MORE ACTIVE HYDROGEN ATOMS IN A MOLAR RATIO TO THE ORGANOMETALLIC COMPOUND WITHIN THE RANGE OF FROM ABOUT 0.1 TO ABOUT 5.0, AND (C) CARBON DIOXIDE GAS UNDER A PRESSURE AT ROOM TEMPERATURE OF FROM ABOUT 5 TO ABOUT 50 KG/CM2 AND IN A MOLAR RATIO TO THE ORGANOMETALLIC COMPOUND OF AT LEAST 1, SAID REACTANTS HAVING BEEN REACTED TOGETHER AT A TEMPERATURE BETWEEN ROOM TEMPERATURE AND ABOUT 300*C FOR A TIME OF FROM ABOUT 0.1 TO ABOUT 100 HOURS.
Claim 3
Dependent Claim
22 words
The catalyst composition of claim 1 wherein M is a metal element selected from the group consisting of zinc, magnesium and aluminum.
Claim 4
Dependent Claim
29 words
The catalyst composition of claim 1 wherein the molar ratio of said co-catalyst component to the organometallic compound is within the range of from about 0.3 to about 2.0.
Claim 5
Dependent Claim
193 words
A process for preparing a catalyst composition which consists essentially of forming a mixture of (a) an organometallic compound having the general formula R''nM, wherein n is an integer, at least one R'' is selected from the group consisting of an alkyl group, halogen, hydroxy, alkoxy, and hydrogen, the remaining R'' groups are selected from the group consisting of alkyl groups, alkaryl groups, aralkyl groups, aryl groups, halogen, hydroxy and alkoxy, and M is a metal element selected from the group consisting of those metal elements in Groups II and III of the Periodic Table, (b) at least one co-catalyst component selected from the group consisting of sulfur and compounds containing one or more active hydrogen atoms in a molar ratio to the organometallic compound within the range of from about 0.1 to about 5.0, and (c) carbon dioxide gas under a pressure at room temperature of from about 5 to about 50 kg/cm2 and in a molar ratio to the organometallic compound of at least 1, and reacting said mixture at a temperature of between room temperature and about 300* C for a time of from about 0.1 to about 100 hours.
Claim 6
Dependent Claim
193 words
A process for preparing a catalyst composition which consists essentially of forming a mixture of (a) an organometallic compound having the general formula R''nM, wherein n is an integer, at least one R'' is selected from the group consisting of an alkyl group, halogen, hydroxy, alkoxy, and hydrogen, the remaining R'' groups are selected from the group consisting of alkyl groups, alkaryl groups, aralkyl groups, aryl groups, halogen, hydroxy and alkoxy, and M is a metal element selected from the group consisting of those metal elements in Groups II and III of the Periodic Table, (b) at least one co-catalyst component selected from the group consisting of sulfur and compounds containing one or more active hydrogen atoms in a molar ratio to the organometallic compound within the range of from about 0.1 to about 5.0, and (c) carbon dioxide gas under a pressure at room temperature of from about 5 to about 50 kg/cm2 and in a molar ratio to the organometallic compound of at least 1, and reacting said mixture at a temperature of between room temperature and about 300* C for a time of from about 0.1 to about 100 hours.
Claim 7
Dependent Claim
31 words
The process of claim 4 wherein the mixture is reacted at a temperature of from about 50*C to about 250*C for a time of from about 0.2 to about 60 hours.
Claim 8
Dependent Claim
31 words
The process of claim 4 wherein the mixture is reacted at a temperature of from about 100*C to about 200*C for a time of from about 0.5 to about 40 hours.
Claim 9
Dependent Claim
15 words
The process of claim 4 wherein the reaction mixture also includes an inert organic solvent.
Claim 10
Dependent Claim
11 words
The process of claim 7 wherein said solvent comprises an ether.
Claim 11
Dependent Claim
21 words
The process of claim 4 wherein M is a metal element selected from the group consisting of zinc, magnesium and aluminum.
Claim 12
Dependent Claim
32 words
The process of claim 4 wherein the molar ratio of said co-catalyst component to the organometallic compound in the reaction mixture is within the range of from about 0.3 to about 2.0.
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) | 1978-08-18 | 1979-02-17 | 1979-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-18 | 1983-02-17 | 1983-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-18 | 1987-02-17 | 1987-08-19 | $7700.00 | Window Closed / Lapsed |