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US 8,507,597 B2Granted
Polymeric defoamer additive
AssigneeKemira Chemicals, Inc.
InventorsJames Martin, Robert Wilson, Scott Rosencrance, David Previs
Life of this patent
Estimating the term…
Abstract
The present invention relates to a cost-effective and environmentally friendly polymeric defoamer formulation for use in various industrial applications that does not contain oil, EBS or free silicone.
Claims32
A defoamer formulation comprising
- 0.01 to 50% by weight of a combination of an acrylate polymer with 1-20 mol % acrylic acid in a suitable diluent, based on a total weight of the formulation;
- 20-80% by weight of an organic carrier, based on a total weight of the formulation, the organic carrier selected from diisodecyl phthalate, diisooctyl adipate, bis-2-ethylhexyl adipate, dioctyl adipate, dihexyl phthalate, polybutenes having a molecular weight of from about 300-1300 atomic mass units, fatty acid esters, or mixtures thereof;
- 0.01 to 15% by weight of an additive, based on a total weight of the formulation;
- and
- optionally, 0.01 to 30% by weight of a surfactant, based on a total weight of the formulation;
- wherein the defoamer formulation does not contain oil or free silicone.
3 more elements
A defoamer formulation comprising
- 0.01 to 50% by weight of a combination of a methacrylate polymer with 1-20 mol % methacrylic acid in a suitable diluent, based on a total weight of the formulation;
- 20-80% by weight of an organic carrier, based on a total weight of the formulation, the organic carrier selected from diisodecyl phthalate, diisooctyl adipate, bis-2-ethylhexyl adipate, dioctyl adipate, dihexyl phthalate, polybutenes having a molecular weight of from about 300-1300 atomic mass units, fatty acid esters, or mixtures thereof;
- 0.01 to 15% by weight of an additive, based on a total weight of the formulation;
- and
- optionally, 0.01 to 30% by weight of a surfactant, based on a total weight of the formulation;
- wherein the defoamer formulation does not contain oil or free silicone.
3 more elements
Dependencies are inferred from the claim text.