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US 5,627,296 AGranted
Phosphorus-containing organosilicon compounds
AssigneeWacker Chemie AG
InventorsJochen Dauth, Hans Mayer, Bernward Deubzer, Petra Gratzl
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Abstract
The present invention provides novel phosphorus-containing organosilicon compounds which can be prepared in a simple manner using readily obtainable starting materials, which are hydrophilic to water-soluble and whose hydrophilicity or water-solubility can be specifically controlled by modification of the phosphorus-containing organosilicon compounds.
Claims4
A process for the preparation of phosphorus-containing organosilicon compounds, of the formula
- wherein organosilicon compounds having units of the formula ##STR20## R is identical or different and is a monovalent, optionally halogenated hydrocarbon radical having 1 to 18 carbon atoms per radical,
- R.sup.1 is a hydrogen atom, a hydroxyl group, a monovalent hydrocarbon radical having 1 to 18 carbon atoms per radical, or a radical of the formula ##STR21## B is a monovalent hydrocarbon radical having aliphatic multiple bonds and having 2 to 18 carbon atoms per radical,
- Z is a divalent hydrocarbon radical having 2 to 18 carbon atoms per radical,
- X is identical or different and is a halogen atom or a radical of the formula --OR.sup.2,
- R.sup.2 is an alkyl radical having 1 to 8 carbon atoms per radical, optionally substituted by an ether oxygen atom,
- a is 0, 1, 2, 3 or 4,
- b is 0, 1, 2 or 3,
- c is 0, 1, 2 or 3,
- c is 0, 1, 2 or 3,
- the sum a+b+c.gtoreq.4,
- are reacted with alkali metal or alkaline earth metal salts of phosphinic or phosphonic acid of the formula ##STR22## wherein R.sup.3 is a hydrogen atom, a hydroxyl group or a monovalent hydrocarbon radical having 1 to 18 carbon atoms per radical,
- M is an alkali metal or alkaline earth metal and
- f is 0.5 or 1,
- in the presence of catalysts (3) which form free radicals.
11 more elements
Dependencies are inferred from the claim text.