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US 2014/0350123 A1Published application
Nonaqueous method of dispersing a water soluble polymer
AssigneeRohm and Haas Company
InventorAnne Oberlin
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Abstract
Described are methods of dispersing and hydrating a water soluble polymer, comprising forming a nonaqueous slurry of polypropylene glycol, water soluble polymer, and hydrophobically modified ethoxylated urethane, provided that the slurry contains less than five percent water; and then contacting the nonaqueous slurry with water to disperse and hydrate the water soluble polymer.
Claims8
A method of dispersing and hydrating a water soluble polymer, comprising:
- forming a nonaqueous slurry of polypropylene glycol, water soluble polymer, and hydrophobically modified ethoxylated urethane, provided that the slurry contains less than five percent water;
- and then
- contacting the nonaqueous slurry with water to disperse and hydrate the water soluble polymer.
A nonaqueous slurry consisting essentially of:
- polypropylene glycol,
- water soluble polymer, and
- hydrophobically modified ethoxylated urethane,
- provided that the slurry contains less than five percent water.
1 more element
Dependencies are inferred from the claim text.