Polyamide rheology modifiers for aqueous coating
AssigneeElementis Specialties, Inc.
InventorsChun-Hung Yen, Wei-Jen Huang, Ming-Jhe Li, Yu-Lun Hung, Hou-Jen Yen, Yu-Yen Lu, Yu-Zhe Su, Hung-Yi Lin
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Abstract
A novel rheology modifier which comprises a quaternary ammonium containing polyamide for use in aqueous paint, and that can provide excellent pigment suspension and rheological properties to the aqueous based coating without being affected by pH fluctuation.
Claims21
A rheology modifier having a composition comprising a quaternary ammonium containing polyamide [B] having Formula (1)
- wherein:
- R4 is a linear or branched substituted or unsubstituted alkyl group having 2 to 36 carbon atoms;
- R5 is a linear or branched substituted or unsubstituted alkyl group having 2 to 34 carbon atoms;
- R6 is a linear or branched substituted or unsubstituted alkyl group having 2 to 12 carbon atoms;
- R7 is selected from the group consisting of hydrogen, alkyl, alkyl carboxylate, alkyl sulfonate having 1 to 18 carbon atoms, and a combination thereof;
- and m ranges from 1 to 10.
A method of making a rheology modifier comprising a quaternary ammonium terminal polyamide, wherein the quaternary ammonium terminal polyamide [B] is obtained by reacting a tertiary amine terminal polyamide with a quaternary agent.
-22. (canceled)
Dependencies are inferred from the claim text.