EP1257339A1 - Entschäumer für flüssige kohlenwasserstoffe i - Google Patents
Entschäumer für flüssige kohlenwasserstoffe iInfo
- Publication number
- EP1257339A1 EP1257339A1 EP01903701A EP01903701A EP1257339A1 EP 1257339 A1 EP1257339 A1 EP 1257339A1 EP 01903701 A EP01903701 A EP 01903701A EP 01903701 A EP01903701 A EP 01903701A EP 1257339 A1 EP1257339 A1 EP 1257339A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- formula
- compounds
- liquid hydrocarbons
- liquid
- added
- 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.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D19/00—Degasification of liquids
- B01D19/02—Foam dispersion or prevention
- B01D19/04—Foam dispersion or prevention by addition of chemical substances
- B01D19/0404—Foam dispersion or prevention by addition of chemical substances characterised by the nature of the chemical substance
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M171/00—Lubricating compositions characterised by purely physical criteria, e.g. containing as base-material, thickener or additive, ingredients which are characterised exclusively by their numerically specified physical properties, i.e. containing ingredients which are physically well-defined but for which the chemical nature is either unspecified or only very vaguely indicated
- C10M171/004—Foam inhibited lubricant compositions
Definitions
- the present application relates to the use of polymeric vinyl alkyl ethers for defoaming liquid hydrocarbons, a process for defoaming liquid hydrocarbons and additives for defoaming liquid hydrocarbons.
- defoamer is used synonymously with the expression foam inhibitor or foam-preventing reagents.
- foam inhibitor or foam-preventing reagents.
- the effect of the present compound can be seen in the fact that the formation of foam is suppressed or foam that has already formed is broken down more quickly.
- the polymers to be used in accordance with the present technical teaching are known compounds which can be prepared from suitable monomers by polymerization processes known to the person skilled in the art.
- Such polymers are preferred whose values M n are in the range from 1000 to 50,000 and in particular 10,000 to 35,000 and particularly preferably in the range from 15,000 to 25,000.
- M n are in the range from 1000 to 50,000 and in particular 10,000 to 35,000 and particularly preferably in the range from 15,000 to 25,000.
- alkyl radicals already mentioned above, those with carbon numbers between 6 and 16 and 8 to 12 and 4 to 10 have also proven to be particularly suitable.
- the isobutyl radical is particularly preferred.
- the compound of the formula (I) is added to liquid hydrocarbon in amounts of from 1 to 2000 ppm, preferably from 5 to 1000 ppm and in particular from 10 to 500 ppm (in each case based on the active substance of the formula (I).
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Dispersion Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Lubricants (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10006623A DE10006623A1 (de) | 2000-02-15 | 2000-02-15 | Entschäumer für flüssige Kohlenwasserstoffe I |
DE10006623 | 2000-02-15 | ||
PCT/EP2001/001241 WO2001060492A1 (de) | 2000-02-15 | 2001-02-06 | Entschäumer für flüssige kohlenwasserstoffe i |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1257339A1 true EP1257339A1 (de) | 2002-11-20 |
Family
ID=7630934
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01903701A Withdrawn EP1257339A1 (de) | 2000-02-15 | 2001-02-06 | Entschäumer für flüssige kohlenwasserstoffe i |
Country Status (5)
Country | Link |
---|---|
US (1) | US20030145513A1 (de) |
EP (1) | EP1257339A1 (de) |
CA (1) | CA2400427A1 (de) |
DE (1) | DE10006623A1 (de) |
WO (1) | WO2001060492A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4526584B2 (ja) * | 2008-09-24 | 2010-08-18 | 楠本化成株式会社 | 水性塗料用消泡剤 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3127352A (en) * | 1964-03-31 | Ppm branched polyvinyl ether | ||
GB759427A (en) * | 1953-07-24 | 1956-10-17 | Monsanto Chemicals | Functional fluids of reduced foaming tendency |
US3166508A (en) * | 1963-01-16 | 1965-01-19 | Monsanto Co | Hydrocarbon oils of reduced foaming properties |
FR2435486A1 (fr) * | 1978-09-06 | 1980-04-04 | Lubrizol Corp | Nouveaux polymeres inhibant la formation de mousse et lubrifiants les contenant |
DE3442727C1 (de) * | 1984-11-23 | 1985-11-28 | Th. Goldschmidt Ag, 4300 Essen | Verwendung von Polymerisaten von Alkylvinylethern zur Verhinderung oder Beseitigung von Schaum auf waessrigen Medien |
DE3607674A1 (de) * | 1986-03-08 | 1987-09-17 | Henkel Kgaa | Verfahren zur herstellung eines entschaeumergemisches |
DE3744593A1 (de) * | 1987-12-31 | 1989-07-13 | Basf Ag | Entschaeumer auf basis von oel-in-wasser-emulsionen |
DE3901608A1 (de) * | 1989-01-20 | 1990-07-26 | Byk Chemie Gmbh | Beschichtungs- und formmassen enthaltend polymerisate von alkylvinylethern und deren verwendung als verlauf- oder antischaummittel |
US5766513A (en) * | 1996-09-10 | 1998-06-16 | Exxon Research And Engineering Company | Antifoaming agents for lubricating oils (law455) |
-
2000
- 2000-02-15 DE DE10006623A patent/DE10006623A1/de not_active Withdrawn
-
2001
- 2001-02-06 WO PCT/EP2001/001241 patent/WO2001060492A1/de not_active Application Discontinuation
- 2001-02-06 US US10/203,858 patent/US20030145513A1/en not_active Abandoned
- 2001-02-06 CA CA002400427A patent/CA2400427A1/en not_active Abandoned
- 2001-02-06 EP EP01903701A patent/EP1257339A1/de not_active Withdrawn
Non-Patent Citations (1)
Title |
---|
See references of WO0160492A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE10006623A1 (de) | 2001-08-16 |
US20030145513A1 (en) | 2003-08-07 |
CA2400427A1 (en) | 2001-08-23 |
WO2001060492A1 (de) | 2001-08-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20020806 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
|
AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: BONGARDT, FRANK Inventor name: HERAULT, DAVID Inventor name: PFEIFFER, ACHIM Inventor name: ABRIBAT, BENOIT |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20040831 |