| abstract |
Alkali-swellable rheology modifier comprise a core-shell polymer, the core-shell polymer comprising a core polymer and a shell comprising at least one shell copolymer layer, at least one shell copolymer layer being at least partially cross-linked and containing a mole percent of crosslinking agent greater than the mole percent of crosslinking agent in the core polymer, with the proviso that if the mole percent of crosslinking agent in the core polymer is zero, then either the core polymer is greater than 60 wt.% of the core-shell polymer; and/or the core polymer comprises at least one associative monomer;and/or at least one shell copolymer layer copolymer comprises at least one associative monomer; and/or the at least one shell copolymer layer that is at least partially cross-linked comprises greater than 3 mole.% crosslinking agent, based on the moles of monomers in that shell copolymer layer not counting the crosslinking agent.Aqueous compositions comprising the alkali-swellable rheology modifier include personal care formulations,healthcare formulations, agricultural formulations, paint formulations, coating formulations, laundry and fabric care formulations, household cleaning formulations, and industrial and institutional cleaning formulations. |