Patent ID: 6936654

Claim:
A process for obtaining additives for hydrogenated resins, comprising: 1) reacting the following components: a) bifunctional perfluoropolyethers having a —COOR end group optionally in admixture with monofunctional perfluoropolyethers having —COOR end group, wherein R=H, C 1 -C 10 alkyl, the number average molecular weight of bifunctional and monofunctional perfluoropolyethers being in the range of 500-5,000; b) mono, bi or polyfunctional hydrogenated monomers having functional aminic groups; c) polyolefins having functional groups, said polyolefin formed by C 2 -C 4 monomers, said functional groups being obtained by grafting with maleic anhydride; wherein in a first step a) is reacted with b), or a) is reacted with mixtures of monomers b) having a different functionality, until disappearance of the —COOR group of component a), and in a second step reacting the product obtained from the reaction of a) with b) with the functionalized polyolefins c).