Patent ID: 7741402
Filing Date: 2010-06-22
Classification: C08G,C08L,C09D

Abstract:
1. An aqueous associative thickener polymer composition comprising: (a) 1% to 60% by weight of an associative thickener having a backbone comprising a polyoxyalkylene, a polysaccharide, or a polyvinyl alcohol, said associative thickener further comprising a plurality of hydrophobic groups attached to or within the backbone wherein one or more of said hydrophobic groups comprises a secondary amine, or a tertiary amine, or a tertiary phosphine, or a combination thereof, and optionally a quaternary amine, with the proviso that less than 80% of the total amine functionality is a quaternary amine; wherein the secondary amine, tertiary amine, and tertiary phosphine are defined such that the carbon atoms adjacent to nitrogen or phosphorus are not classified as carbonyl or thionyl carbons; (b) sufficient acid to substantially protonate the secondary amine, or the tertiary amine, or the tertiary phosphine, or combination thereof; (c) 40% to 99% by weight of water; and (d) 0% to 15% by weight of an organic co-solvent, surfactant, cyclodextrin compound, or any combination thereof as a viscosity-suppressing additive.