Reaction products and use of same in defoamer compositions and methods for defoaming
AssigneeBASF SE
InventorsDavid E. Przybyla, John Mangano, Brandon C. Achord
Life of this patent
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Abstract
Reaction products of an optionally alkoxylated alcohol, a polyalkylene alcohol and a linker can be used in various applications such as defoamers. Methods of making the reaction products and defoamer compositions including the reaction products, and methods of using the reaction products to reduce or prevent foam in a composition are also disclosed. The reaction products can be used with an organic solvent or without an organic solvent to provide low VOC compositions.
Claims20
A product which is the reaction product of components consisting of:
- (a) a compound of Formula I,
- R1—OH
- wherein R1 is an aliphatic alkyl group containing from 4 to 36 carbon atoms, and the alkyl group is unsubstituted or non-alkoxy substituted;
- (b) a compound of Formula II,
- H—(OR2)m—OH
- wherein R2 is ethylene, propylene, butylene, or a combination thereof, and m is a number from 1 to 50, and
- (c) a linking compound of Formula III,
- R3(X)3
- wherein R3 is an alkanetriyl group containing from 3 to 10 carbon atoms, and wherein each X is independently a halogen, or one X group is a halogen and two X groups represent an epoxy oxygen atom attached to two carbon atoms from the R3 group to form an epoxy group.
A method of making a defoamer composition, comprising reacting components consisting of:
- (a) a compound of Formula II,
- H—(OR2)m—OH
- wherein R2 is ethylene, propylene, butylene, or a combination thereof, and m is a number from 1 to 50,
- (b) a linking compound of Formula III,
- R3(X)3
- wherein R3 is an alkanetriyl group containing from 3 to 10 carbon atoms, and wherein each X is independently a halogen, or one X is a halogen and two X groups represent an epoxy oxygen atom attached to two carbon atoms from the R3 group to form an epoxy group, and
- (c) a compound of Formula Ib,
- R1—(OR101)n—OH
- wherein R1 is an aliphatic alkyl group containing from 4 to 36 carbon atoms, and the alkyl group is unsubstituted or non-alkoxy substituted;
- R101 is ethylene, propylene, butylene, or a combination thereof, and n is 0, and
- wherein the reaction does not include an organic solvent.
Dependencies are inferred from the claim text.