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US 7,094,827 B2Granted
Thixotropic agents comprising ethylene terpolymer waxes
AssigneeBASF SE
InventorsAndreas Fechtenkötter, Lars Wittkowski, Katrin Zeitz, Michael Ehle, Siegfried Gast, Wolfgang Kasel, Andreas Deckers
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Abstract
The invention relates to a method for producing thixotropic agents containing 0.1–30 wt.-% of at least one ethylene terpolymer wax, 5–7 wt.-% of at least one solvent, which is incompatible with the ethylene terpolymer wax, 5–85 wt.-% of of at least one solvent which is compatible with the ethylene terpolymer wax and with one or more of the first-named solvents.
Claims9
A thixotropic agent comprising as components from 0.1 to 30% by weight of at least one ethylene terpolymer wax synthesized from
- from 80 to 99.9% by weight of ethylene, from 0.1 to 20% by weight of at least two comonomers comprising
- as first comonomer from 1 to 99% by weight of at least one C3–C12 alkenecarboxylic acid and
- as second comonomer from 99 to 1% by weight of at least one ester of the formula I
- where R1 is selected from the group consisting of hydrogen, C1–C10 alkyl, C3–C12 cycloalkyl, and C6–C14 aryl
- and R2 is selected from the group consisting of C1–C10 alkyl, C3–C12 cycloalkyl, and C6–C14 aryl,
- from 5 to 70% by weight of at least one first solvent incompatible with the ethylene terpolymer wax, and
- from 5 to 85% by weight of at least one second solvent compatible with the ethylene terpolymer wax and with said first solvent(s).
4 more elements
Dependencies are inferred from the claim text.