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US 11,795,263 B2Granted
Low-water-content hydrophilization agents and use thereof in aqueous dispersions
AssigneeEvonik Operations GmbH
InventorsEmmanouil Spyrou, Iris Brückner, Judith Schoder
Life of this patent
Estimating the term…
Abstract
The present invention relates to compositions comprising a) 20-80% by weight, based on the total mass of constituents of the composition, of at least one sulfonic acid functionalized with at least one hydroxy and/or amino group and/or at least one sulfonic acid derivative functionalized with at least one hydroxy and/or amino group and b) 80-20% by weight, based on the total mass of constituents of the composition, of at least one compound having at least two OH groups, a method for the preparation thereof and use thereof.
Claims12
A composition consisting of reactive constituents
- a) from 20 to 80% by weight, based on the total mass of constituents of the composition, of at least one sulfonic acid functionalized with at least one hydroxy and/or amino group and/or at least one sulfonic acid derivative functionalized with at least one hydroxy and/or amino group, selected from the group consisting of lithium, sodium, potassium, and caesium salts of a sulfonic acid selected from the group consisting of hydroxyethylsulfonic acid, hydroxypropylsulfonic acid, hydroxybutylsulfonic acid, aminoethylsulfonic acid, aminopropylsulfonic acid, aminobutylsulfonic acid and 2-[(2-aminoethyl)amino-ethane]sulfonic acid;
- and
- b) from 80 to 20% by weight, based on the total mass of constituents of the composition, of at least one compound having at least two OH groups,
- wherein:
- component a) is exclusively a sulfonic acid derivative, and
- the water content is less than 5% by weight based on the total mass of the composition.
3 more elements
Dependencies are inferred from the claim text.