Arkema France

Arkema Inc.

Atofina

Benoît Brule

Nadine Decraemer

Jean-Jacques Flat

Jerome Pascal

Estelle Meurice Pierrat

Guillaume Le

Philippe Blondel

Mathieu Sabard

Philippe Bussi

Eric Gamache

Barbara Ramfel

Nicolas Dufaure

Hao Wang

Benjamin Saillard

Bruce Clay

Richard Audry

Fabien Sguerra

Gilles Hochstetter

Julien Jouanneau

Alexander Korzhenko

Karine Loyen

Samuel Devisme

Frederic Malet

Yves Deyrail

Cyrille Mathieu

Ilias Iliopoulos

Maho Yasuda

Xiong Yao

Stefania Cassiano Gaspar

Benoît Barriere

Clément Paul

Henri-Alexandre Cayzac

Antoine Breuil

Nicolas Amouroux

Laurent B Cartier

Alexandre Vermogen

Denis Huze

Frédéric Malet

Reinhard Linemann

Thomas Fine

Jean-Charles Durand

Jérôme Amstutz

Ornella Zovi

Hervé Ster

Regis Cipriani

Angelo Pedicini

Christophe Caremiaux

Perrine Babin

Sylvain Benet

Stefânia Cassiano Gaspar

Rui Mao

Holger Vandrich

Damien Vitry

Jing Zhao

Anne Jonquieres

Robert Clement

Olivier Jeanne

Aude Chiquot

Lionel Jeancolas

Patrick Piccione

Nicolas Frenois

Jérome Pascal

Marie Pommier De Santi

A copolyamide including at least two distinct units A and XY of formula A/XY, wherein: A is a repeating unit obtained by polycondensation of: at least one Cto Camino acid, or at least one Cto Clactam, or at least one C-Cdicarboxylic acid Cb; XY is a repeating unit obtained from the polycondensation of at least one Cto Clinear aliphatic diamine (X), and at least one aromatic dicarboxylic acid (Y), to prepare a composition comprising betweenand 65% of reinforcing fibers, relative to the total weight of the composition, and for which the flexural modulus or tensile modulus, measured after an identical conditioning, does not vary by more than 20% in the temperature range from 20° C. to 40° C.

Copolyamide compositions comprising reinforcing fibers and having high modulus stability and uses thereof

A process for the preparation of a semifinished product including a PAEK-based resin and reinforcing fibers, including the stages of: a. preparation of a dispersion including a PAEK-based resin in the pulverulent form dispersed in an aqueous phase including a surfactant; b. bringing the reinforcing fibers into contact with said aqueous dispersion; c. drying the fibers impregnated with dispersion; and d. heating the impregnated fibers to a temperature sufficient for the melting of the resin, so as to form a semifinished product, wherein the surfactant is a thermally stable surfactant. Also, semifinished products capable of being obtained from the process and their use in the manufacture of composite materials.

Method for impregnating reinforcing fibres with polyaryletherketones and semi-products obtained therefrom

The field of molded articles and fiber-reinforced thermoplastic compositions for obtaining them. The use of the reinforced thermoplastic composition for obtaining a thin molded article with reduced warpage. The composition may include: from 30 to 70% by weight of an amorphous polyamide matrix by total weight of the composition; from 30 to 70% by weight of glass fibers with a circular cross-section by total weight of the composition; and optionally additives.

Use of a reinforced thermoplastic composition

The invention relates to the use of a composition comprising at least one semi-crystalline copolyamide A/X1Y in which: —A is a repeat unit obtained from the polycondensation of at least one C6 to C12 lactam, or at least one repeat unit XY obtained from the polycondensation of at least one aliphatic C4 to C18 diamine (X), and of at least one aliphatic C6 to C18, in particular C6 to C12, dicarboxylic acid (Y), —X1Y is a repeat unit obtained from the polycondensation of a diamine (X1) chosen from an arylamine, a cycloaliphatic diamine and a branched aliphatic diamine and of at least one aliphatic dicarboxylic acid (Y) identical to that of the unit XY, the A/X1Y weight ratio being from 60/40 to 95/5, glass fibres having a circular cross section, and optionally at least one impact modifier and/or at least one additive, for limiting warping while at the same time maintaining the cycle time of the obtained composition suitable for processing thereof, in particular by injection moulding.

Use of a copolyamide composition as a matrix of filler material with glass fibres having a circular cross section for limiting warping

The present invention relates to a polymer composition comprising a polymer comprising methyl methacrylate, (meth)acrylic acid and styrene monomers. In particular, the present invention relates to a polymer composition comprising a polymer comprising methyl methacrylate, (meth)acrylic acid and styrene monomers, said composition having particularly advantageous compromises of heat-resistant, fluidity, scratch-resistant and chemical-resistant properties. The present invention also relates to a molded or extruded object comprising a polymer comprising methyl methacrylate, (meth)acrylic acid and of styrene monomers, and the use of these objects.

A method and apparatus for heat treating powders of semi-crystalline or crystallizable polymers. The apparatus includes a heating device for heating the powder to a temperature that is less than the melting temperature of a highest melting crystalline form of the powder, a vessel containing the powder that is exposed to heat produced by the heating device, and a mechanism for moving the vessel to cause the powder within the vessel to move with respect to the vessel.

Process and apparatus for heat treatment of a polymer powder

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 at least one MXDZ polyamide, obtained from the polycondensation of meta-xylylenediamine (MXD), with a Cto Caliphatic (Z) dicarboxylic acid, in particular Cto C, in a mixture including at least one aliphatic polyamide A obtained from the polycondensation of a unit selected from: a Cto Clactam, a Cto Camino acid, and an XY unit obtained from the polycondensation of a Cto C, aliphatic diamine (X), especially Cto C, and a Cto Caliphatic dicarboxylic acid (Y), especially Cto C, circular-section glass fibres and optionally at least one impact modifier and/or at least one additive, said at least one MXDZ polyamide and said mixture constituting a composition, and the MXDZ/A weight ratio being from 0.11 to 0.83, in particular from 0.11 to 0.66, to limit the warping of said composition during processing, in particular by injection or compression moulding.

Use of a semi-aromatic polyamide in a mixture of aliphatic polyamide comprising circular-section glass fibres to limit warping

The present invention relates to a reinforced thermoplastic powder composition, comprising: The present invention relates in particular to the use of said composition in 3D printing processes for manufacturing reinforced three-dimensional objects.

Thermoplastic powder composition and reinforced three-dimensional object produced by 3D printing of such a composition

The invention relates to a composition comprising at least one first polyamide, conforming to the formula MXD&#xb7;10 or MXD&#xb7;10/Z and having a melting temperature Tf, and at least one second polyamide. Said at least second polyamide has a melting temperature Tfsuch that Tf&#x2212;40&#xb0; C.&#x2264;Tf&#x3c;Tf+20&#xb0; C. The invention likewise relates to an article obtained from such a composition, to a method of shaping such an article, and to the use of such a composition and of such an article.

Polyamide-based composition, article obtained therefrom, and uses thereof

Provided is a poly(aryl-ether-ketone) (PAEK) powder suitable for use in a method for building objects layer-by-layer by electromagnetic radiation-generated sintering, which is obtained from a thermal pretreatment at a temperature between 260&#xb0; C. and 290&#xb0; C. and which has a melting temperature which is stable, at the build temperature, and below or equal to 330&#xb0; C.

Poly(aryl-ether-ketone) (PAEK) powder suitable for multiple use in sintering methods

The use of circular-section glass fibres in a mixture including at least one MXDZ polyamide, obtained from polycondensation of meta-xylylenediamine (MXD), with a Cto Caliphatic (Z) dicarboxylic acid, and at least one aliphatic polyamide A obtained from the polycondensation of a unit selected from: a Cto Clactam, a Cto Camino acid, and an XY unit obtained from the polycondensation of a Cto Caliphatic diamine (X), and a Cto Caliphatic dicarboxylic acid (Y), circular-section glass fibres and optionally at least one impact modifier and/or at least one additive, said circular-section glass fibres and said mixture constituting a composition, said circular-section glass fibres being present from 30 to 75% by weight and with respect to the total weight of the composition, to improve the mechanical properties of said composition, including elongation at break, after processing, in particular by injection or compression moulding.

Use of circular-section glass fibres in a mixture comprising a semi-aromatic polyamide and an aliphatic polyamide to improve the mechanical properties of said mixture

The invention is targeted mainly at a process for the preparation of a semifinished product comprising a PAEK-based resin and reinforcing fibers, comprising the stages of:

A tubular structure for transporting heat transfer fluid including at least: i) a layer (1) in contact with the fluid including at least one thermoplastic polymer P1 that is semicrystalline with Tm1 greater than or equal to 160&#xb0; C., as determined according to the standard 1 1357-3 (2013) or amorphous with Tg1 greater than or equal to 100&#xb0; C., as determined according to the standard 1 1357-2 (2013), said layer (1) containing no fibers, ii) a layer (2) including at least: (a) a thermoplastic polymer P2 that is semicrystalline, in particular a polyamide with Tm2 greater than or equal to 170&#xb0; C. or amorphous with Tg2 greater than or equal to 100&#xb0; C., or a polyolefin with Tm greater than 100&#xb0; C.; (b) optional continuous fibers, the polymer P2 being identical to P1 or different from P1 in which case the polymers P1 and P2 adhere at least partially to one another.

Multilayer structure for transporting heat transfer fluid

A method for producing a surface coated with a coating having an improved coalescence, the method including: providing a composition comprising from 99.6% to 99.99% by weight of at least one powder of at least one polyarylene ether ketone and 0.01 to 0.4% by weight of a hydrophilic flow agent, the hydrophilic flow agent being hydrophilic silica; depositing the composition onto a surface forming a coated surface; and baking the coated surface to form a film on the surface.

Powder composition of polyarylene ether ketone ketones allowing an excellent castability/coalescence balance suitable for laser sintering

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Beaumont-le-Roger, France

Benoît Brule