Organosilicon-modified polydienes, process for their preparation, and their use as demulsifiers for crude oil

Organosilicon-modified polydienes of the formula in which Z are chain-terminating groups, R is hydrogen or methyl, R , R and R are lower alkyl having 1 to 4 carbon atoms, which may be identical or different within the polymeric molecule, R is methyl or [O-(R O-)3-R ], R , R and R are alkylene having...

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Bibliographische Detailangaben
Hauptverfasser:	KOERNER,GOETZ,DR, WEITEMEYER,CHRISTIAN,DR
Format:	Patent
Sprache:	eng ; ger
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON CRACKING HYDROCARBON OILS FUELS LUBRICANTS METALLURGY MINERAL WAXES ORGANIC MACROMOLECULAR COMPOUNDS PEAT PERFORMING OPERATIONS PETROLEUM, GAS OR COKE INDUSTRIES PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVEHYDROGENATION, OLIGOMERISATION, POLYMERISATION RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, ORGASES REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS REFORMING OF NAPHTHA SEPARATION TECHNICAL GASES CONTAINING CARBON MONOXIDE THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS
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Beschreibung
Zusammenfassung:	Organosilicon-modified polydienes of the formula in which Z are chain-terminating groups, R is hydrogen or methyl, R , R and R are lower alkyl having 1 to 4 carbon atoms, which may be identical or different within the polymeric molecule, R is methyl or [O-(R O-)3-R ], R , R and R are alkylene having 2 to 4 carbon atoms, the C:O ratio is from 2.25 to 3:1 in R O, from 3 to 2.75:1 in R O and from 2 to 3:1 in R O, but the difference between the C:O ratios in R O and R O must be >/= 0.25, and the C:O ratio in R O must be < that in R O or > that in R O, a is from 0 to 2, 0 < b < 3, where 0 < a + b < 3, p, q and s are >/= 2, x and y are >/= 0, z is >/= 3. The invention furthermore relates to processes for the preparation of these compounds, and the use thereof as demulsifiers for crude oil/water emulsions.