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US4419265A
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US
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Addition products from ethylene oxide-propylene oxide block polymers and bis-glycidyl ethers, a process for their preparation and their use
Assignee: Hoechst AG
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Filing: 1981-12-21
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Granted: 1983-12-06
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Expires: 2001-12-21
Abstract
Abstract Addition products from ethylene oxide-propylene oxide block polymers of the formula ##STR1## wherein R denotes methyl or ethyl, n and m are numbers which are so chosen that the content of polyethylene oxide constitutes 5 to 80% of the molecular weight of the total molecule and p is a number larger than 10, and bis-glycidyl ethers of the formulae ##STR2## wherein the R 1 's can be identical or different and denote hydrogen, C 1 -C 4 -alkyl or halogen, in particular chlorine, A denotes a direct bond, a sulfonyl or cyclohexyl group or a group of the formula ##STR3## R 2 denotes hydrogen, methyl or phenyl and a denotes an integer from 0 to 10. These addition products are used for breaking petroleum emulsions.
Inventors
- 👤 Helmut Diery
- 👤 Martin Hille
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:14
CPC Classifications
C; C10; C10G; C10G33/00; C10G33/04; C08; C08L; C08L63/00; C09; C09K; C09K8/00; C09K8/60; C09K8/602; C09K8/604
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
123 words
An addition product from the components consisting essentially of (a) an ethylene oxide-propylene oxide block polymer of the formula ##STR7## wherein R denotes methyl or ethyl, n and m are numbers which are so chosen that the content of polyethylene oxide constitutes 5 to 80% of the molecular weight of the total molecule and p is a number larger than 10, and (b) a bis-glycidyl ether of the formula ##STR8## wherein the R 1 's can be identical or different and denote hydrogen, C 1 -C 4 -alkyl or halogen, A denotes a direct bond, a sulfonyl or cyclohexyl group or a group of the formula ##STR9## R 2 denotes hydrogen, methyl or phenyl and a denotes an integer from 0 to 10.
Claim 2
Dependent Claim
123 words
An addition product from the components consisting essentially of (a) an ethylene oxide-propylene oxide block polymer of the formula ##STR7## wherein R denotes methyl or ethyl, n and m are numbers which are so chosen that the content of polyethylene oxide constitutes 5 to 80% of the molecular weight of the total molecule and p is a number larger than 10, and (b) a bis-glycidyl ether of the formula ##STR8## wherein the R 1 's can be identical or different and denote hydrogen, C 1 -C 4 -alkyl or halogen, A denotes a direct bond, a sulfonyl or cyclohexyl group or a group of the formula ##STR9## R 2 denotes hydrogen, methyl or phenyl and a denotes an integer from 0 to 10.
Claim 3
Dependent Claim
34 words
A process for the preparation of addition products as claimed in claim 1, which comprises reacting the ethylene oxide-propylene oxide block polymer with the bis-glycidyl ether at a temperature of 70° to 160° C.
Claim 4
Dependent Claim
18 words
An addition product of claim 1, wherein, when a said R 1 is halogen, said halogen is chlorine.
Claim 5
Dependent Claim
23 words
A method for breaking a petroleum emulsion comprising the step of using an addition product of claim 1 to break the petroleum emulsion.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-12-05 | 1987-06-06 | 1987-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-12-05 | 1991-06-06 | 1991-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-12-05 | 1995-06-06 | 1995-12-06 | $7700.00 | Window Closed / Lapsed |