Rhodia Engineering Plastics S.r.l.

Rhodia Operations

Nyltech Italia

Rhodia Engineering Plastics, S.a.

Nyltec Italia

Rhodia Opérations S.a.s.

Nicolangelo Peduto

Franco Speroni

Haichun Zhang

Gerard Bradley

Florence Clement

Caroll Vergelati

Franck Touraud

Olivier Andres

Christophe Lapierre

Frédéric Tronc

Gérard Bradley

Heat and light-stabilized polyamide compositions containing a stabilization system that includes copper oxide and KBr, and have an excellent preservation of color and of the mechanical properties thereof after exposure to heat or to light; these compositions are especially useful for producing shaped articles in the automotive field.

Heat/light-stabilized polyamide compositions

Polyamide compositions and articles shaped therefrom have good dimensional stability and contain at least one novolac resin and nanometric flake structure filler material; the articles shaped therefrom, e.g., by injection molding, are useful in a various of applications, for example as engineering plastics.

Polyamide compositions

A process for producing an article, including: forming an article from a composition comprising a polyamide matrix, wherein the composition comprises: 2 to 10% by weight of carbon black as an electrically conductive filler, with respect to the total weight of the composition, and 1% to 30% by weight of an antistatic agent comprising a polyetheramide, with respect to the total weight of the composition; and applying paint to the article by electrostatic deposition.

Electrostatic composition based on a polyamide matrix

Heat- and light-stabilized polyamide compositions contain a stabilization system that includes copper oxide and KBr, and have an excellent preservation of color and of the mechanical properties thereof after exposure to heat or to light; these compositions are especially useful for producing shaped articles in the automotive field.

Polyamide matrix-based compositions containing electrically conductive fillers are molded into plastic shaped articles, e.g., automotive body parts, which are improvedly painted by electrostatic deposition processing.

Electrically conductive compositions/shaped articles comprising polyamide matrices

The invention concerns a multilayer structure based on polyamides, particularly suitable for making tubes or conduits for transporting liquid fluids such as alcohol's, liquid fuels, fuel containing oxygen-containing compounds such as, for example alcohol's or refrigerating fluids. The multilayer structure comprises two superposed layers: at least one internal layer and at least one external layer. The invention is characterized in that at least the internal layer is based a composition comprising at least one thermoplastic polyamide and at least one agent modifying resistance to shocks in a weight proportion between 10 and 50% of said composition, and at least the external layer is based on a composition containing as polymeric matrix a polyamide composition selected among the group comprising: (i) a thermoplastic copolymer obtained by copolymerization of &#x3b5;-caprolactam with at least one of the monomers selected among the group comprising: an aminoacid containing at least 9 carbon atoms, or the corresponding lactam, a mixture of hexamethylenediamine with a diacid comprising at least 9 carbon atoms, the weight ratio between the &#x3b5;-caprolactam and the total hexamethylenediamine and diacid and/or aminoacid ranging between 4 and 9, or (ii) a mixture of at least said thermoplastic copolymer and at least a second thermoplastic polyamide or copolyamide obtained by polymerization of monomers containing less than 9 carbon atoms. The weight content of the second polymer or copolymer in the polymeric matrix is between 0 and 80 wt. %, preferably between 0 and 40 wt. %. The multilayer structure has high barrier properties against fuel vapor and good mechanical properties such as good resistance to cracking.

Multilayer structure based on polyamides and tube or conduit with multilayer structure

Thermoplastic compositions containing a polyamide and/or polyester matrix and a variety of additives have high fluidity and can be shaped into plastic articles with good mechanical properties and an improved surface appearance.

Polyamide and/or polyester matrix thermoplastic compositions and articles shaped therefrom

The invention relates to a composition based on a polyamide matrix comprising electrically-conductive charges. Said composition can be prepared in order to produce plastic articles such as, for example, body parts in the automobile industry, having a good capacity for being painted using an electrostatic paint application method.

Electrically-conductive composition based on a polyamide matrix

The invention concerns manufactured articles comprising at least two assembled thermoplastic elements, a first element based on polyolefin and a second element based on polyamide. The elements are assembled by being welded together.

Articles comprising a polyolefin-based element joined to a polyamide-based element, and process for obtaining them

The invention concerns a plastic-based multilayer structure, in particular for making tubes or conduits for transporting liquid fluids such as alcohol, liquid fuels derived from petrol, fuels containing oxygen compounds such as, for instance alcohol. More particularly it concerns a multilayer structure comprising an external layer (A) formed from a polyamide based composition with and an internal adjacent layer (B) formed from a polyfluorovinylidene based composition.

Plastic-based multilayer structure and tube having a multilayer structure

The invention concerns polyamides modified by a multifunctional compound. Finished articles formed from said polyamides or from compositions based on said polyamides exhibit excellent mechanical properties, and a very good surface appearance. The modified polyamide is obtained by mixing in melted form a polyamide and a polyamide macromolecular compound comprising star-shaped or H-shaped macromolecular chains.

Modified polyamides, compositions based on same and macromolecular compounds used to obtain them

The invention relates to modified polyamides, and more particularly to polyamides containing units of the type obtained by reacting a diacid with a diamine, modified with a multifunctional compound. The finished articles shaped from these polyamides or from compositions based on these polyamides have excellent mechanical properties and also a very good surface aspect. The modified polyamide according to the invention is obtained by melt-blending polyamides of different natures, in the presence of a multifunctional compound.

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Cesano Maderno, Italy

Nicolangelo Peduto