Patent ID: 8476384

Claim:
A polymeric reaction product from polymerizing in a media containing water with a free radical initiator source in the presence of a solid Brönsted acid a) at least one ethylenically unsaturated aliphatic olefin with 4 to 30 carbon atoms of the formula CH 2 ═CR′R″ where R′ is a linear or branched C 1 to C 28 alkyl that may be linear, branched or cyclic and R″ is hydrogen or a linear or branched alkyl as set forth for R′, with the proviso that R′ and R″ together have no more than 28 carbon atoms with b) at least one ethylenically unsaturated monomer containing an electron withdrawing group, and c) optionally with other ethylenically unsaturated monomers forming a copolymer comprising repeating units within the same copolymer from said olefin and said monomer containing an electron withdrawing group.