Stable high solids aqueous dispersions of hydrophobizing agents
AssigneeEnnis Herder, Inc.
InventorDaniel Horace Craig
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Abstract
Stable high solids aqueous dispersions of hydrophobizing agents can be prepared utilizing combinations of water-soluble protective colloids in combination with hydrolytically stable water-insoluble organic compounds selected from the group comprising organic salts and polar group-containing organic compounds as dispersion stabilizers. These dispersions impart water repellent characteristics when applied to the interfaces and surfaces of materials, and are compatible when blended with synthetic resin emulsions.
Claims18
A composition of matter which is an aqueous hydrophobizing agent dispersion comprising:
- a) from about 0.01% up to about 5% by weight of hydrophobizing agent of a water-soluble protective colloid selected from the group consisting of plant glycosides, semi-synthetic water-soluble polysaccharides and blends thereof,
- b) from about 0.01% up to about 5% by weight of hydrophobizing agent of a hydrolytically stable water-insoluble organic compound selected from the group comprising organic salts and polar group-containing organic compounds,
- c) optionally a secondary dispersion stabilizer,
- d) from about 0.1% up to about 50% by weight of total dispersion of a hydrophobizing agent,
- e) water.
A method for producing a composition of matter which is an aqueous hydrophobizing agent dispersion comprising:
- a) from about 0.01% up to about 5% by weight of hydrophobizing agent of a water-soluble protective colloid selected from the group consisting of plant glycosides, semi-synthetic water-soluble polysaccharides and blends thereof,
- b) from about 0.01% up to about 5% by weight of hydrophobizing agent of a hydrolytically stable water-insoluble organic compound selected from the group comprising organic salts and polar group-containing organic compounds,
- c) optionally a secondary dispersion stabilizer,
- d) from about 0.1% up to about 50% by weight of total dispersion of a hydrophobizing agent, and
- e) water,
- comprising dispersing said hydrophobizing agent into water in the presence of said water-soluble protective colloid and water-insoluble organic compound to form the aqueous hydrophobizing agent dispersion.
Dependencies are inferred from the claim text.