| abstract |
A process for preparing grafted poly ((meth) acrylate] copolymers (A) containing a polymeric backbone comprising the following monomer units (A1) to (A4): (A1) 0% to 40% by weight, based on the total weight of components (A1), (A2), (A3) and (A4), of one or more compounds, ethylenically unsaturated esters, of formula (I): ** (See formula) ** where : R is H or CH3, R1 represents a linear or branched, saturated or unsaturated alkyl group, with 1 to 5 carbon atoms or a cycloalkyl group with 3 to 5 carbon atoms, R2 and R3 independently represent H or a group of the formula -COOR ', wherein R' is H or a linear or branched alkyl group, saturated or unsaturated, with 1 to 5 carbon atoms or a cycloalkyl group with 3 to 5 carbon atoms, (A2) 20% to 93, 5% by weight, based on the total weight of components (A1), (A2), (A3) and (A4), of one or more compounds, ethylenically unsaturated esters, of formula (II): ** (Ve r formula) ** where: R is H or CH3, R4 represents a linear or branched, saturated or unsaturated alkyl group, with 6 to 15 carbon atoms, R5 and R6 independently represent H or a group of the formula -COOR " , where R "is H or a linear or branched alkyl group, saturated or unsaturated, with 6 to 15 carbon atoms, ... |