Arkema France

Arkema Inc.

Elf Atochem S.a.

Atofina

Teijin Aramid B.v.

Appryl S.n.c.

Philippe Bussi

David Silagy

Anthony Bonnet

Guillaume Le

Clément Paul

Yves Deyrail

Jason M Lyons

Bruce Clay

Timothy A Spahr

Richard Audry

Philippe Renouard

Benoît Brule

Gilles Hochstetter

Thibaut Montanari

Alain Bouilloux

Julien Jouanneau

Quentin P Pineau

Christophe Lacroix

Hanneke Boerstoel

Michael Timothy Burchill

Karine Triballier

Bruno D'Herbecourt

Barbara Ramfel

Serge Lorek

Jacques Thomasset

Bert Gebben

Wido Nijenhuis

Pierre Gonnetan

Francedillaois Fernagut

Gérard Reignier

J&eacute;r&ocirc ;me Thierry-Mieg

Fr&eacute;d&eacute;rique Pery

Jose Teixeira Pires

Michael Foure

Benoit Barriere

Anne-Claude Gaumont

Hashim Albadri

A composition based on poly(arylene ether ketone) (PAEK) which is stable in the molten state, characterized in that it includes a phosphate salt or a mixture of phosphate salts, a process for the stabilization of a composition based on PAEK incorporating said phosphate salts and objects manufactured using the composition.

Composition made from poly(arylene-ether-ketone) (PAEK) which is stable in the molten state and method for stabilizing such a composition

An insulated conductor including: at least one electrical conductor; and, an insulating coating covering said electrical conductor, having n layer(s), 'n' being an integer greater than or equal to 1, the nlayer being the outermost layer having a pseudo-amorphous composition Cincluding at least 50% by weight of a polyaryletherketone. A process for manufacturing the insulated conductor, a heat-welding process using two sections of insulated conductor, and a coil capable of being obtained by heat-welding a winding of the insulated conductor.

Insulated conductor for use in a winding, winding derived therefrom and corresponding manufacturing methods

A method of manufacturing a semi-crystalline article from at least one pseudo-amorphous polymer including a poly aryl ether ketone, such as PEKK, including a softening step, wherein the at least one pseudo-amorphous polymer is heated to a temperature above its glass transition temperature to soften the polymer, and a crystallization step, wherein the at least one pseudo-amorphous polymer is heated to a temperature between its glass transition temperature and melting temperature, the pseudo-amorphous polymer being placed on a mold during either the softening step or the crystallization step before at least some crystallization takes place. The method results in articles demonstrating increased opacity, increased crystallinity, increased thermal resistance, improved chemical resistance, and improved mechanical properties over articles formed by traditional thermoforming processes.

Production of semicrystalline parts from pseudo-amorphous polymers

A polymer blend, including: (i) a poly(aryl ether ketone); (ii) a polysiloxane; and (iii) a block copolymer containing polysiloxane blocks. A process for manufacturing the polymer blend, the use of the polymer blend for the manufacture of parts, notably in the petroleum, cabling, aeronautical, motor vehicle, electronics, electrotechnical, composite, additive manufacturing and medical device sectors and also a part at least partially manufactured from said blend.

Blends of polyaryletherketones having improved impact-resistance, elongation at break and flexibility

The use of PEKK for lowering the COand HS permeability of a part intended to enter into contact with a petroleum effluent. Also, a pipe for transporting a petroleum effluent, including a layer intended to be in contact with the petroleum effluent, wherein the layer intended to be in contact with the petroleum effluent comprises PEKK and has a COpermeability at 130&#xb0; C. of less than 10cm, for a thickness of 1 cm and a surface area of 1 cmand per second and bar of COpressure and/or an HS permeability at 130&#xb0; C. of less than 10cmfor a thickness of 1 cm and a surface area of 1 cmand per second and bar of HS pressure, the amount of COand HS being measured by GC, respectively. Lastly, a number of methods for manufacturing such a pipe.

Use of PEKK for producing parts with low gas permeability

A process for manufacturing a fiber including polyetherketoneketone including the steps of: mixing polyetherketoneketone and sulfuric acid having a concentration of at least 90 wt % to obtain a spin dope and passing the spin dope through a spinneret into a coagulation bath, wherein the polyetherketoneketone is dissolved in the sulfuric acid to a concentration of 12 to 22 wt %. Also disclosed are fibers obtainable by the process and polyetherketoneketone fibers having a sulfur content of 0.001 to 5 wt %, based on the weight of the fiber, in particular such fibers having low or high crystallinity, as well as, hybrid yarns and composite materials.

Process for the manufacture of polyetherketoneketone fiber

A method for stabilizing a composition made from PAEK, said method including a step of incorporating a stabilizing agent against thermo-oxidation phenomena, said method being characterized in that said incorporated stabilizing agent is a phosphate salt, or a mixture of phosphate salts. The phosphate salt is incorporated into the composition based on PAEK by one of the following techniques: dry blending, compounding, wet impregnation or during the process for synthesizing the PAEK polymer.

Method for stabilising a composition made from poly(arylene-ether-ketone) (PAEK)

One subject of the present invention is a composition that combines at least one polyamide having at least one MXD entity, MXD denoting meta-xylylenediamine or a mixture of meta-xylylenediamine and of para-xylylenediamine, with a bioresourced reinforcement. The invention also relates to the conversion of these compositions, by injection molding or extrusion, into objects that have good mechanical properties, said objects corresponding to technical application specifications such as may be found, for example, in the automotive industry, construction, sport and in electrical or electronic fields.

Polyamide and bioresourced reinforcement compositions having improved mechanical properties

The invention relates to a method of producing a film comprising at least one layer of a thermoplastic fluoro-polymer and at least one layer of another polymer (A). The inventive method consists in using extrusion blow molding to coextrude a fluoro-polymer and polymer (A) which adhere to one another; with a layer of another thermoplastic polymer (B) such that it forms a layer which is adjacent to the fluoropolymer/polymer (A) layer According to the invention, the thermoplastic polymer (B) is incompatible with the fluoro-polymer and polymer (A) and has adequate extrudate behavior to support the layers of fluoro-polymer and/or polymer (A). Once the coextrudate has been cooled, by separating the layer(s) of (B), at least the film is recovered, said film comprising at least one layer of a polymer selected from among thermoplastic fluoro-polymers and polymers (A).

Method of producing films by means of coextrusion blow-moulding

The present invention relates to the use of films, formed from an adhesive layer and a layer (A), for coating articles made of a thermoset, the adhesive layer comprising, by weiqht: 0 to 60 parts of PVDE, 10 to 100 parts of functionalized PMMA, 0 to 50 parts of an acrylic elastomer and 0 to 4 parts of a UV absorber, the total making upparts, the layer (A) comprising, as main constituents, 0 to 100 parts of PVDF per 100 to 0 parts of PMMA, respectively. This film may be manufactured by coextrusion and is then fixed to the thermoset, for example by hot pressing. The invention also relates to an SMC (Sheet Moulding Compound) multilayer structure comprising, in this order: a backing film, a crosslinkable composition (the precursor of the thermoset), the above adhesive layer and the above layer (A).

Use of a film based PVDF, PMMA or a blend thereof for covering articles made of a thermoset

The invention relates to a polyamide-based thermoplastic composition comprising, by weight: It also relates to an impact modifier composition and to the process for the preparation of a thermoplastic composition according to the invention using such an impact modifier composition.

Polyamide thermoplastic compositions with improved impact strength properties

A structure made of a fluoropolymer layer and directly attached to one of its sides a tie layer based on a polyamide which results from the condensation of at least one diacid and at least one diamine of the following formula (1):in which Rrepresents H or -Z1-NHand Z1 represents an alkyl, a cycloalkyl or an aryl having up to 15 carbon atoms and Rrepresents H or -Z2-NHand Z2 represents an alkyl, a cycloalkyl or an aryl having up to 15 carbon atoms, it being possible for Rand Rto be identical or different. The tie resin may also be a copolymer having polyamide blocks and polyether blocks, the polyamide blocks resulting from condensation of at least one diacid and at least one diamine of formula (1). The invention also relates to a structure comprising a fluoropolymer layer, the tie layer and a substrate layer, respectively, as well as to a structure comprising a tie layer, respectively. This structure may be placed between two substrate layers and may be in the form of a sheet, film, profile or tube. It is particularly useful in the form of a tube for transporting gasoline between the tank and the injection device in motor-vehicle engines.

Structure comprising a fluoropolymer layer and a piperazine-based tie resin

The present invention relates to a microcomposite powder comprising particles from 1 um to 300 um of an electrically conductive product, which are coated with particles from 0.1 &mgr;m to 0.5 &mgr;m of a fluoropolymer. According to one advantageous form of the invention the microcomposite powder comprises a product (A) which is a polymer or an oligomer which can be dissolved with a solvent which is not a solvent for the fluoropolymer or for the electrically conductive product. The present invention also relates to objects consisting of this powder. These objects may be bipolar plates for fuel cells, or supercapacitor components.

Microcomposite power based on an electrical conductor and a fluoropolymer, and objects manufactured with this powder

Thermoformable multilayer film for the protection of substrates and objects obtained

Growing community of inventors

Bernay, France

Philippe Bussi