Atofina

Thierry Vivier

Heike Faulhammer

Alain Bouilloux

Denis Bertin

Laurent Teze

Michel Biensan

Nicola Hoogen

Guo-Hua Hu

Franck Victorien

Huxi Li

According to a first form, the present invention relates to a compatibilizer composed of a polyolefin backbone and of polyamide grafts in which: The invention also relates to a process for the preparation of these compatibilizers in which, after the preparation of the backbone comprising the monomer having an activating functional group, the precursor lactam of the grafts and a catalyst are added and heating is carried out in order to obtain anionic polymerization of the lactam which spreads starting from the activating functional group. Subsequently, the compatibilizer and the polyamide which has formed apart from the grafts are optionally separated.

Compatibilizing agent based on polyolefin with polyamide grafts and mixtures comprising same

Method for anionic polymerization of lactames

The invention relates to a thermoplastic composition comprising: a matrix-forming thermoplastic polymer (M), rigid nodules obtained by radical polymerization, and optionally an impact modifier (S). It also relates to a process comprising, in a first stage, forming a homogeneous solution of precursor of the nodules in the thermoplastic (M) in the molten state, in a second stage, introducing the initiator while remaining at a temperature below which the initiator becomes active, and, in a third stage, heating to a temperature sufficient to cause crosslinking of the precursor and to form rigid nodules while kneading the composition, the impact modifier being introduced during the first or the second stage.

Thermoplastic resin compositions comprising a rigid dispersed phase

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Serquigny, France

Thierry Vivier