Highly Concentrated Liquid Forms of Polysaccharide Ethers
AssigneeAkzo Nobel Chemicals International B.V.
InventorsPeter Westbye, Qingwen Wendy Yuan-Huffman
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Abstract
A liquid composition is provided, comprising 2 to 30 wt % of a non-ionic water-soluble polysaccharide ether, 55 to 90 wt %, of a polyol having 3 to 4 hydroxyl groups, 5 to 25 wt % of water, and 0.1 to 5 wt % of at least one multivalent inorganic anion salt. The invention also provides agricultural formulations obtained by adding such a liquid composition and an agriculturally active ingredient to water.
Claims18
A liquid composition comprising
- a) 2 to 30 wt %, based on the total weight of the liquid composition, of a non-ionic water-soluble polysaccharide ether;
- b) 55 to 90 wt %, based on the total weight of the liquid composition, of a polyol having 3 to 4 hydroxyl groups;
- c) 5 to 25 wt %, based on the total weight of the liquid composition, of water;
- and
- d) 0.1 to 5 wt %, based on the total weight of the liquid composition, of at least one multivalent inorganic anion salt.
A method of dispersing a non-ionic, water-soluble polysaccharide ether with a polyol having 3-4 hydroxyl groups, water and at least one salt of a multivalent anion, wherein the weight ratio of the polyol to the sum of water and the salt of a multivalent inorganic anion in the mixture is from 75:25 to 95:5, preferably from 80:20 to 90:10, and the concentration of the salt of multivalent inorganic anion is from 4 to 20 wt % based on the total weight of the salt of multivalent inorganic anion and water.
Dependencies are inferred from the claim text.