Compositions for rendering absorbent materials water-repellent and oil-repellent
AssigneeWacker Chemie AG
InventorsRudolf Hager, Elke Eberharter
Life of this patent
Estimating the term…
Abstract
The aqueous compositions for rendering absorbent materials oil-repellent and water-repellent consist essentially of (A) an organosilicon compound, (A1) a C.sub.1 -C.sub.20 -alkyl-C.sub.1 -C.sub.6 -alkoxysilane, (A2) an organopolysiloxane containing C.sub.1 -C.sub.6 -alkoxy groups and optionally groups selected from hydroxyl groups and C.sub.1 -C.sub.30 hydrocarbon groups which optionally contain basic nitrogen, or mixtures of (A1) and (A2), (B) an organofluorine compound consisting of fluorine and carbon atoms and optionally chlorine, hydrogen, oxygen sulfur, silicon, phosphorus and/ or nitrogen atoms, and containing CF bonds, (C) a surfactant and (D) water.
Claims13
An aqueous composition for rendering absorbent materials oil-repellent and water-repellent, said composition being an aqueous emulsion consisting essentially of
- (A) as an organosilicon component,
- (A1) one or more C.sub.1 -C.sub.20 -alkyl-C.sub.1 -C.sub.6 -alkoxysilanes,
- (A2) one or more organopolysiloxanes containing C.sub.1 -C.sub.6 -alkoxy groups and optionally groups selected from hydroxyl groups and C.sub.1 -C.sub.30 hydrocarbon groups, and which optionally contain basic nitrogen, or,
- (A3) mixtures of (A1) and (A2),
- (B) one or more organofluorine compounds consisting of fluorine and carbon atoms and optionally chlorine, hydrogen, oxygen, sulfur, silicon, phosphorus and/or nitrogen atoms, and containing CF bonds,
- (C) a surfactant, and
- (D) water.
An aqueous composition for rendering absorbent materials oil-repellent and water-repellent, said composition being an aqueous emulsion consisting essentially of
- (A) as an organosilicon component,
- (A1) one or more C.sub.1 -C.sub.20 -alkyl-C.sub.1 -C.sub.6 -alkoxysilanes,
- (A2) one or more organopolysiloxanes containing C.sub.1 -C.sub.6 -alkoxy groups and optionally groups selected from hydroxyl groups and C.sub.1 -C.sub.30 hydrocarbon groups, and which optionally contain basic nitrogen, or
- (A3) mixtures of (A1) and (A2),
- (B) one or more organofluorine compounds consisting of fluorine and carbon atoms and optionally chlorine, hydrogen, oxygen, sulfur, silicon, phosphorus and/or nitrogen atoms, and containing CF bonds,
- (C) a surfactant, and
- (D) water,
- wherein said composition is free of organosilicon compounds with ammonium functional groups.
Dependencies are inferred from the claim text.