Rhodianyl

Rhodia Chimie

The University of Western Ontario

Christophe Paulo

Franck Touraud

Jean-François Sassi

Christine Vidil

Pascal Herve

Jean-Pierre Marchand

Eric Roche

Judit E Puskas

Prince P Antony

Sandrine Rochat

Natalia Scherbakoff

Mare Labeille

Jean-Paul La Grange

Bertrand Bordes

Jean-Francois Sassi

Jean-Paul Lagrange

The invention relates to a process for the preparation of particles based on a thermoplastic polymer with a mean diameter of less than 1 mm. The process of the invention comprises more particularly a stage of preparation of a composition comprising the thermoplastic polymer and an additive, in the molten state, of cooling the composition and of disintegration of the thermoplastic polymer dispersion.

Process for the preparation of particles based on a thermoplastic polymer and powder thus obtained

The invention provides a novel thermoplastic polymer comprising at least one polyalkylene oxide block. It relates to a process for preparing the thermoplastic polymer and to an application of this polymer as a hydrophilicity and/or antistatic modifier, especially in polyamide compositions. These compositions are particularly suitable for the manufacture of yarns, fibres and filaments.

Thermoplastic polymer, use thereof in polyamide compositions with improved hydrophily and anti-staticity

The invention relates to thermoplastic compositions comprising a thermoplastic polyamide matrix and at least one additive which modifies the interaction between the matrix and an agent. The purpose of the invention is to provide an additive which modifies the interaction between a copolyamide-type thermoplastic copolyamide matrix and at least one agent. The aforementioned additive, which comprises at least one hyperbranched functionalised polymer, is not compatible with the matrix. Moreover, said additive can be used for the controlled modification of the interaction between the thermoplastic copolyamide and an internal or external chemical agent. Preferably, the composition does not contain hyperbranched polymers which produce therein a reduction in the molar mass of matrix M which is greater than or equal to 7% in relation to a sample composition which comprises matrix M but does not contain hyperbranched polymer additive(s). Said mass measurement is taken preferably using a determined protocol P. The invention is suitable for use in moulding, injection moulding, injection/blow moulding, extrusion/blow moulding, extrusion or spinning.

Thermoplastic composition comprising a hyperbranched polymer additive and articles made using said material

The present invention provides highly branched block copolymers comprising branched soft segments with a low glass-transition temperature (T ) and hard segments with a high T or crystalline melting point that exhibit thermoplastic elastomeric properties. More particularly the invention provides a highly branched block copolymer of a polyisoolefin and a polymonovinylidene arene characterized by having thermoplastic elastomeric properties wherein the aforesaid block copolymer comprises a highly branched polyisoolefin block and some of the branches of the aforesaid polyisoolefin block terminate in polymonovinylidene arene endblocks.

Arborescent thermoplastic elastomers and products therefrom

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Lyons, France

Christophe Paulo