Polymer product for treating leather

摘要

The invention concerns graft copolymers, useful for the treatment of leather, comprising monomers of the formula (* CHEMICAL STRUCTURE *) grafted onto a base polymer comprising monomers of the formula (* CHEMICAL STRUCTURE *) wherein R1 and R2 stand for a hydrocarbon group having 2 to 24 carbon atoms, with the proviso that the groups R1 and R2 have van der Waals volumes which differ from one another by less than 30 percent.