Thermoplastic polymer masterbatch

The invention discloses process for increasing the scratch resistance of a composition comprising a thermoplastic organic polymer and a scratch resistant polymer composition per se. The process for increasing the scratch resistance of a composition comprising a thermoplastic organic polymer (P) comprises reactively mixing a thermoplastic organic polymer (A) and an organopolysiloxane (B) in a first step (I) at a temperature at which the thermoplastic organic polymer (A) and the organopolysiloxane (B) are in liquid phases to form a masterbatch, wherein the organopolysiloxane (B) contains at least one functionality capable of reacting with the thermoplastic organic polymer (A) so that a copolymer of (A) and (B) is formed in the masterbatch during the reactive mixing, and in a second step (II) mixing the masterbatch with the composition comprising thermoplastic organic polymer (P). 本发明公开了用于提高包含热塑性有机聚合物的组合物的耐刮擦性的方法以及耐刮擦聚合物组合物本身。用于提高包含热塑性有机聚合物(P)的组合物的耐刮擦性的方法包括在第步骤(I)中使热塑性有机聚合物(A)和有机聚硅氧烷(B)在所述热塑性有机聚合物(A)和所述有机聚硅氧烷(B)