Atofina

Arkema France

Arkema Inc.

Martin Baumert

Jean-Jacques Flat

Patrice Robert

Marius Hert

Christophe Lacroix

Jean-Michel Pierrot

Christian Laurichesse

David Silagy

Francois Court

Franck Bertoux

Philippe Annoot

Thibault Montanari

François Court

Sëbastien Micheneau

Roparz Kervennal

Jocelyn Mauffrey

Mehdi Mehran Emad

Sébastien Micheneau

The present invention relates to a multilayer structure based on polyamides and graft copolymers having polyamide blocks, comprising, in this order: One particularly useful application relates to tubes for cooling circuits of internal combustion engines, such as the engines of cars or lorries.

Multilayer structure based on polyamides and graft copolymers having polyamide blocks

The invention relates to a composition comprising, for 100 parts by weight, 99-60 parts of a styrenic polymer (A), 1-40 parts of (B)+(C), (B) being a polyamide block and polyether block copolymer essentially comprising ethylene oxide patterns (C2H4-O)&#x2014;, (C) being a compatibilizer of styrene and at least one polymerized block comprising ethylene patterns, (B)/(C) ranging from 2 to 10.

Antistatic strenique polymer compositions

The invention concerns a mixture comprising by weight, the total being 100%, 1 to 100% if a polyamide block copolymer consisting of a basic polyolefin chain and on an average at least a polyamide graft wherein: the grafts are fixed to the basic chain by the radicals of an unsaturated monomer (X) having a function capable of reacting with a polyamide with amine terminal, the radicals of the unsaturated monomer (X) are fixed to the basic chain by grafting or copolymerization from its double bond; 99 to 0% of a flexible polyolefin with elastic modulus in flexure less than 50 MPa at 23&#xb0; C. and having a crystalline melting point ranging between 60&#xb0; C. and 100&#xb0; C. Said mixtures are useful for making films, tanks, geomembrane protective fabrics produced by extrusion, products obtained by calendering, thermocladding/forming, protective films for electric cables and skins using slush molding technique.

Mixture of grafted polyamide-block and flexible polyolefin copolymers

The present invention relates to a hot-melt adhesive composition comprising:

Hot-melt adhesives based on polyamide-block graft copolymers

The invention concerns a crosslinkable composition of functionalized polyolefin powder comprising a functionalized polyolefin (A) having an MFI of at least 20 (190&deg; C. 2.16 kg), a product (B) having a function for crosslinking (A), the composition having a grain size distribution between 100 and 400 &mgr;m. Said composition is useful for slush moulding, for thermoforming sheets or injection on an insert.

Crosslinkable compositions of functionalized polyolefin powders

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Serquigny, France

Martin Baumert