Wax inhibitors with improved flowability
AssigneeClariant International Ltd.
InventorsMichael Feustel, Matthias Krull
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Abstract
This invention provides a wax inhibitor composition comprising A) the reaction product obtainable by reaction of i) a carboxylic acid containing an optionally substituted cycloaliphatic hydrocarbyl residue with ii) an alkylene polyamine, B) a polymeric wax inhibitor, and C) an organic solvent.
Claims29
A wax inhibitor composition comprising
- A) a reaction product prepared by the reaction of
- i) a carboxylic acid containing a cycloaliphatic hydrocarbyl residue, the cycloaliphatic hydrocarbyl residue being optionally-substituted, and
- ii) an alkylene polyamine,
- B) a polymeric wax inhibitor, and
- C) an organic solvent.
A method to reduce the viscosity of a polymeric wax inhibitor (B) comprising the mixing of the polymeric wax inhibitor (B) with a reaction product (A) obtainable by the reaction of a carboxylic acid containing a cycloaliphatic hydrocarbyl residue (i) with an alkylene polyamine (ii), wherein (A) and (B) are dissolved or dispersed in an organic solvent (C).
A method for improving the cold flow properties of a paraffin-containing hydrocarbon fluid wherein the method comprises admixing the paraffin-containing hydrocarbon fluid with a wax inhibitor composition, wherein the wax inhibitor composition comprises
- A) a reaction product prepared by the reaction of
- i) a carboxylic acid containing a cycloaliphatic hydrocarbyl residue, the cycloaliphatic hydrocarbyl residue being optionally-substituted, and
- ii) an alkylene polyamine,
- B) a polymeric wax inhibitor, and
- C) an organic solvent.
A composition comprising a paraffin-containing hydrocarbon fluid and a wax inhibitor composition, wherein the wax inhibitor composition comprises
- A) a reaction product prepared by the reaction of
- i) a carboxylic acid containing a cycloaliphatic hydrocarbyl residue, the cycloaliphatic hydrocarbyl residue being optionally-substituted, and
- ii) an alkylene polyamine,
- B) a polymeric wax inhibitor, and
- C) an organic solvent.
Dependencies are inferred from the claim text.