Patent ID: 8784711

Claim:
A process for preparing a reactive thermoplastic composition comprising a continuous phase based on at least one thermoplastic polymer and dispersed therein a discontinuous phase based on at least one reactive reinforcing chemical agent that may be immiscible with said at least one thermoplastic polymer and that is selected from the group consisting of epoxy resins, polyorganosiloxanes having SiH functional group(s), diisocyanates or polyisocyanates and mixtures thereof, wherein this process comprises a grafting, a branching and/or a crosslinking, that are carried out in situ, by a reactive compounding of these phases with a shear rate greater than 10 3 s −1 , of said at least one reinforcing agent onto the chain of said at least one thermoplastic polymer, so that said discontinuous phase is dispersed in said continuous phase in the form of nodules having a number-average size of less than 5 μm with a maximum standard deviation of 0.5 μm.