Water-in-oil creams of organosilicon compounds
AssigneeEvonik Goldschmidt GmbH
InventorsManfred Schmuck, Roland Sucker
Life of this patent
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Abstract
The invention relates to hydrocarbon-free aqueous creams of organosilicon compounds, their preparation and their use. The hydrocarbon-free water-in-oil creams of organosilicon compounds comprise the components: (A) one or more C1-C20-alkyl-C1-C6-alkoxysilanes (A1), alkoxy-containing organopolysiloxanes (A2) and/or organopolysiloxanes (A3) which comprise, in addition to other organosiloxane units, siloxane units which bear Si—C-bonded radicals containing basic nitrogen, with the proviso that the amine number of the organopolysiloxane is at least 0.01, (B) one or more emulsifiers and (C) water.
Claims17
A method for waterproofing building materials which comprises applying a hydrocarbon-free water-in-oil cream of organosilicon compounds, which comprises the components
- (A) at least one or more optionally halogen-substituted alkyl-alkoxysilanes (A1);
- and/or one or more organopolysiloxanes (A3) which comprise, in addition to other organosiloxane units, siloxane units which bear Si—C-bonded radicals containing basic nitrogen, with the proviso that the amine number of the organopolysiloxane is at least about 0.01;
- and
- optionally an alkoxy containing polysiloxane (A2);
- (B) one or more emulsifiers and
- (C) water;
- to said building materials.
A method for waterproofing building materials which comprises applying to said building materials a hydrocarbon-free water-in-oil cream of organosilicon compounds, which comprises the components
- (A) at least one or more optionally halogen-substituted C1-C20-alkyl-C1-C6-alkoxysilanes (A1);
- and/or
- one or more organopolysiloxanes (A3) which comprise, in addition to other organosiloxane units, siloxane units which bear Si—C-bonded radicals containing basic nitrogen, with the proviso that the amine number of the organopolysiloxane is at least 0.01;
- and optionally an alkoxy containing polysiloxane (A2);
- (B) one or more emulsifiers and
- (C) water.
A process for hydrophobing finely divided inorganic materials which comprises contacting a hydrocarbon-free water-in-oil cream of organosilicon compounds, which comprises the components
- (A) at least one or more optionally halogen-substituted alkyl-alkoxysilanes (A1);
- and/or one or more organopolysiloxanes (A3) which comprise, in addition to other organosiloxane units, siloxane units which bear Si—C-bonded radicals containing basic nitrogen, with the proviso that the amine number of the organopolysiloxane is at least about 0.01;
- and
- optionally an alkoxy containing polysiloxane (A2);
- (B) one or more emulsifiers and
- (C) water;
- with said inorganic materials.
Dependencies are inferred from the claim text.