Arkema France

Atofina

Elf Atochem S.a.

Atochem

Arkema Inc.

Philippe Blondel

Thierry Briffaud

Thibaut Montanari

Jean-Jacques Flat

Benjamin Saillard

Mathieu Sabard

Eric Gamache

Annett Linemann

Philippe Maj

Benoît Brule

Patrick Dang

Estelle Meurice Pierrat

Pierre Nogues

Yves Deyrail

Quentin P Pineau

Christophe Lacroix

Karine Loyen

Jean-Marc Sage

Nicolas Amouroux

Didier Judas

Frédéric Malet

Claire Michalowicz

Helene Egret

Henri Decraemer

Patrick Alex

Michael Werth

Frederic Malet

Alexandre Vermogen

Daniel Cuzin

Barbara Ramfel

Vincent Ferreiro

René-Paul Eustache

Reinhard Linemann

Patrick Douais

Fabrice Montezin

François Fernagut

Inci Turan-Altuntas

Yves Lermat

Sylvain Benet

Christophe Caremiaux

Francois Fernagut

Nicolas Frenois

Camille Jungblut

Fabrice Glasson

G&eacute;rard Reignier

Franck Gerard

Inci Turan

David Meslet

Jean-Philippe Allen

Thierry Lefebvre

Claire Isabelle Michalowicz

Benoït Brule

Héléne Egret

Hélène Egret

A polyamide-based polymer composition including: a) 50% to 98% by weight of a transparent amorphous polyamide; b) 1% to 15% by weight of a polymer in the form of core-shell particles; and c) 1% to 15% by weight of a polyether block and polyamide block copolymer, wherein the polyether block and polyamide block copolymer has: as a 2 mm layer, a transmittance at 560 nm of 90% or more; and a refractive index that does not differ by more than 0.01 from that of the transparent amorphous polyamide and wherein the polymer in the form of core-shell particles has a refractive index that does not differ by more than 0.01 from that of the transparent amorphous polyamide. Also, a process for the manufacture of the composition, and the composition capable of being obtained by said process.

Transparent polymeric composition

The invention relates to the use of a composition comprising at least one polyamide, of which at least one is a semicrystalline copolyamide comprising at least one minor motif resulting from the polycondensation of: at least one diamine with at least one polymerised fatty acid, in particular a fatty acid dimer; or at least one diamine dimer with at least one carboxylic acid; or at least one amino acid dimer; or mixtures of same, as a sealing coating in a pipe containing oil or gas, said pipe being used in the operation of offshore oil or gas deposits.

Polyamide-based composition for pipes containing oil or gas

The present invention relates to a copolyamide comprising at least two units and corresponding to the following general formula:A/(diamine)&#xb7;(Cdiacid),in which: The invention also relates to a composition comprising this copolyamide and to the use of this copolyamide and of such a composition.

Copolyamide, composition comprising such a copolyamide and uses thereof

The invention relates to the use of at least one catalyst, at least one copper heat stabiliser and at least one oligo- or poly-carbodiimide with a matrix including at least one polyamide, in order to form a composition that has a good melt viscosity and is stable during transformation, in particular during extrusion.

Transformation-stable composition comprising viscous polyamide, production thereof and use of same

The present invention relates to a copolymer with a rigid polyamide block and a flexible polyether or polyester block, wherein said polyamide block is semicrystalline and consists of a copolyamide of W/Y.Z type, wherein:

PEBA-based composition and use thereof for producing a fatigue-resistant transparent object

The invention relates to the use of at least one prepolymer in a composition which includes: a matrix of at least one transparent semi-crystalline polyamide, and optionally at least one additive, for improving the crystallisation kinetics and reducing the warping of the composition while preserving or improving the transparency properties thereof as well as the mechanical properties thereof, in comparison with the same composition without a prepolymer, wherein the composition does not contain a nucleating agent.

Use of a prepolymer in transparent thermoplastic compositions, compositions comprising same and uses thereof

Provided is a method for heating or cooling a liquid or a body by means of a vapor compression circuit containing a heat transfer fluid. The vapor compression circuit element includes at least one layer that includes copolyamide of formula X/10.T/Y, where the structural variables are described herein.

Use of semi-aromatic copolyamide for transporting refrigerant fluid

The invention relates to a composition comprising: This composition has advantageous properties of transparency and impact strength, especially for the manufacture of sports articles.

Transparent impact-resistant composition

The present invention concerns a multilayer tubular structure (MLT) intended for transporting fluids such as air, oil, water, a urea solution, a cooling liquid made from glycol, a transmission oil cooler (TOC), or an air conditioning liquid, or a fuel such as petrol, in particular bio-petrol, or diesel, in particular bio-diesel, comprising at least one layer (1) and at least one layer (2), said layer (1) comprising a composition comprising: -a) at least 50% by weight of at least one semi-aromatic polyamide of formula W/ZT, -b) at least 10% by weight, preferably at least 15%, of an impact modifier, -c) between 0 and 20% by weight of at least once plasticiser, -d) between 0 and 40% by weight of at least one additive, the sum of a) +b) +c) +d) being equal to 100%, said layer (2) comprising a composition comprising a') at least 50% by weight of at least one short-chain semi-crystalline polyamide referred to as (A), said short-chain aliphatic polyamide (A) being of formula X Y/Z, or formula V/Z, -b&#x2032;) between 0 and 15% of at least one impact modifier, -c&#x2032;) between 0 and 12% by weight of at least once plasticiser, -d&#x2032;) between 0 and 40% by weight of at least one additive, the sum a&#x2032;)+b&#x2032;)+c&#x2032;)+d&#x2032;) being equal to 100%.

Multilayer combining both good ageing properties and resistance to bursting in hot conditions, that can be used for high-temperature motor vehicle applications

The invention relates to the use of a layer consisting of a composition comprising a copolyamide of formula X/10.T/Y for transporting a heat transfer fluid in a vapor compression circuit, wherein: X represents either the residues of an aliphatic amino acid comprising between 8 and 18 carbon atoms, or a lactam, or the unit X.Xrepresenting the residues resulting from the condensation of an aliphatic diamine comprising between 6 and 18 carbon atoms and a (cyclo)aliphatic diacid comprising between 6 and 18 carbon atoms; 10.T represents the residues resulting from the condensation of a decanediamine and terephthalic acid; and Y represents the residues resulting from the condensation of an aliphatic diamine comprising between 9 and 14 carbon atoms and an aromatic diacid, Y being different from the unit 10.T; the molar proportion of 10.T units being higher than 0%.

A composition including at least one polyamide; at least one copolymer including polyamide blocks and polyether blocks; and a single polyolefin, said polyolefin being a polyolefin functionalized by maleic anhydride units or by epoxy units. Also, objects manufactured from this composition and to the associated manufacturing process of the composition.

Impact-resistant thermoplastic composition

The present invention relates to a copolyamide comprising at least two units and corresponding to the following general formula:A/(diamine).(Cw diacid),in which: The invention also relates to a composition comprising this copolyamide and to the use of this copolyamide and of such a composition.

Copolyamide, composition comprising such a copolyamide and their uses

A composition comprising a copolyamide and a crosslinked polyolefin. The present invention relates to a composition comprising at least one semi-aromatic polyamide and at least one crosslinked polyolefin, wherein the crosslinked polyolefin is obtained from at least one product (A) comprising an unsaturated epoxide and from at least one product (B) comprising an unsaturated carboxylic acid anhydride. According to the invention, the weight contents of (A) and (B), denoted respectively [A] and [B], are such that the [B]/[A] ratio is between 3 and 14.

Composition comprising a semi-aromatic polyamide and a crosslinked polyolefin

The invention relates to a copolyamide comprising at least two different units corresponding to the following general formulation:A/X.T A is chosen from a unit obtained from an amino acid, a unit obtained from a lactam and a unit corresponding to the formula (Cdiamine).(Cdiacid), with a representing the number of carbon atoms of the diamine and b representing the number of carbon atoms of the diacid, a and b each being between 4 and 36, advantageously between 9 and 18, X.T denotes a unit obtained from the polycondensation of a Cdiamine and of terephthalic acid, with x representing the number of carbon atoms of the Cdiamine, x being between 9 and 36, advantageously between 10 and 18, characterized in that said copolyamide exhibits: 

Semiaromatic polyamide comprising a chain ending

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Bernay, France

Philippe Blondel