GB870418A - Improvements in or relating to the production of polymers of mono-epoxides - Google Patents
Improvements in or relating to the production of polymers of mono-epoxidesInfo
- Publication number
- GB870418A GB870418A GB2019759A GB2019759A GB870418A GB 870418 A GB870418 A GB 870418A GB 2019759 A GB2019759 A GB 2019759A GB 2019759 A GB2019759 A GB 2019759A GB 870418 A GB870418 A GB 870418A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ethylene glycol
- catalyst
- aluminium
- metal
- polyhydric alcohol
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
- C08G65/04—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers only
- C08G65/06—Cyclic ethers having no atoms other than carbon and hydrogen outside the ring
- C08G65/08—Saturated oxiranes
Abstract
A catalyst for the polymerization of monomeric epoxy compounds comprises a metal polyhydric alcohol compound formed by reacting a polyhydric alcohol and an aluminium or magnesium alkyl, aryl, alkoxide or aroxide or halide of such metal compound. The epoxy compounds are those having the formula: <FORM:0870418/IV (a)/1> where R is a hydrocarbon or substituted hydrocarbon radical or hydrogen or both R's may form a substituted or unsubstituted cycloaliphatic ring. Specified compounds are ethylene, propylene, styrene and cyclohexene oxides, epichlorhydrin, and phenyl, tolyl, chlorophenyl and naphthyl glycidyl ethers. Examples of catalysts are the reaction products of ethylene glycol and aluminium triethyl, of ethylene glycol and aluminium isopropoxide, and of ethyl magnesium bromide and ethylene glycol. They may be used on a solid support, e.g. aluminium isopropoxide heated with alumina and ethylene glycol added to the melt. In p general they may be prepared as described in Specification 731,216. A co-catalyst may be added, e.g. metal halides such as zinc chloride. Solvents may be used in the reaction, which may be effected at temperatures of 0 DEG to 300 DEG C. The polymer may be freed from catalyst by decomposing the catalyst with alcohol, washing with dil. HCl, washing with water and extracting with benzene. The examples describe the polymerization of ethylene oxide to products having molecular weights of up to 763,000.ALSO:A catalyst for the polymerization of monomeric epoxy compounds (see Group IV(a)) comprises a metal polyhydric alcohol compound formed by reacting a polyhydric alcohol and an aluminium or magnesium alkyl, aryl, alkoxide or aroxide or a halide of such metal compound. A co-catalyst may be added, e.g. a metal halide such as zinc chloride. Examples of catalysts are the reaction products of ethylene glycol and aluminium isopropoxide, of ethylene glycol and aluminium triethyl, and of ethyl magnesium bromide and ethylene glycol. They may be used on a solid support, e.g. aluminium isopropoxide may be heated with alumina and ethylene glycol added to the melt. In general they may be prepared as described in Specification 731,216.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2019759A GB870418A (en) | 1959-06-12 | 1959-06-12 | Improvements in or relating to the production of polymers of mono-epoxides |
| FR829471A FR1258790A (en) | 1959-06-12 | 1960-06-09 | Improvements in the preparation of polymers of alkylene oxides |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2019759A GB870418A (en) | 1959-06-12 | 1959-06-12 | Improvements in or relating to the production of polymers of mono-epoxides |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB870418A true GB870418A (en) | 1961-06-14 |
Family
ID=10142016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2019759A Expired GB870418A (en) | 1959-06-12 | 1959-06-12 | Improvements in or relating to the production of polymers of mono-epoxides |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB870418A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3337475A (en) * | 1961-12-29 | 1967-08-22 | Sumitomo Chemical Co | Method for the polymerization of olefin oxides |
| US3356620A (en) * | 1964-09-17 | 1967-12-05 | Hercules Inc | Process for preparing crystalline poly |
| US3427259A (en) * | 1963-10-16 | 1969-02-11 | Union Carbide Corp | Polymerizing of oxirane monoepoxides in the presence of a reaction product of an organometallic compound and a polyoxyalkylene glycol |
-
1959
- 1959-06-12 GB GB2019759A patent/GB870418A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3337475A (en) * | 1961-12-29 | 1967-08-22 | Sumitomo Chemical Co | Method for the polymerization of olefin oxides |
| US3427259A (en) * | 1963-10-16 | 1969-02-11 | Union Carbide Corp | Polymerizing of oxirane monoepoxides in the presence of a reaction product of an organometallic compound and a polyoxyalkylene glycol |
| US3356620A (en) * | 1964-09-17 | 1967-12-05 | Hercules Inc | Process for preparing crystalline poly |
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