Arkema France

Compagnie Generale Des Etablissements Michelin

Other

Dehondt Technologies

Akrema France

Centre National De La Recherche Scientifique

Ecole Superieure De Physique Et De Chimie Industrielles De La Ville De Paris

Institut National Des Sciences Appliquees De Lyon

Quentin P Pineau

Gilles Hochstetter

Ludwik Leibler

Marc Audenaert

Philippe Blondel

Sébastien Rigo

Jean-Jacques Flat

Thierry Briffaud

Mathieu Capelot

Philippe Bussi

Clio Cocquet

Helena Cheminet

Inci Turan-Altuntas

Karine Loyen

Mathieu Sabard

Yves Deyrail

François Fernagut

Patrick Dang

Bruno D'Herbecourt

Jean-Yves Loze

René-Paul Eustache

Jean-Charles Durand

Emilie Goncalves

Stefania Cassiano Gaspar

Laure Berdin

Atsushi Yoshitake

Francois Fernagut

Guy Dehondt

Edouard Philippe

Masako Akagi

Philippe Denis H Blondel

Alain Rousseau

François Tournilhac

Martin Pouzet

Blandine Testud

Emilie Papore

Réda Agnaou

Jérôme Dupuy

The present invention concerns the use of PCL in preparing a block copolymer comprising at least one rigid block and at least one flexible block, for enhancing the sebum resistance of said block copolymer. The present invention also provides a sebum-resistant block copolymer, characterized in that it comprises rigid blocks and flexible blocks comprising at least 50% by weight of PCL, based on the total weight of flexible blocks, which represents 100%; a process for synthesizing said copolymer; and also compositions and articles comprising a sebum-resistant copolymer of this kind.

Block copolymer with improved resistance to sebum

A copolyamide-based powder intended for forming a coating on a surface, having an inherent viscosity of greater than or equal to 0.8 (g/100 g), in which the copolyamide has a melting point of less than or equal to 160° C. Also, the use of such a powder for coating a surface, the coating having an inherent viscosity of greater than or equal to 0.8 (g/100 g), and also a process for coating a surface using such a powder.

Low-melting copolyamide powders

The invention relates to a flexible, stretchable, waterproof breathable film based on a block copolymer comprising at least one rigid polyamide PA block and at least one flexible block, characterized in that said copolymer includes at least one carboxylic acid chain end blocked with a polycarbodiimide. The invention also relates to the use of a polycarbodiimide in a process for manufacturing a film based on a copolymer containing polyamide blocks and flexible blocks including at least one carboxylic acid chain end, for improving, simultaneously, the extrudability of the copolymer, the drawability of the copolymer in film form and/or for improving the extrusion rate of said copolymer, and for improving the stretchability of the film, the flexibility of the film, its abrasion resistance and its tear strength.

Block-copolymer-based stretchable, flexible, waterproof and breathable film

The invention relates to a copolymer containing rigid polyamide PA blocks and flexible blocks, characterized in that it includes at least one carboxylic acid chain end blocked with a polycarbodiimide, said copolymer according to the invention being in noncrosslinked linear form. The invention also relates to the use of a polycarbodiimide in a process for manufacturing a copolymer containing rigid polyamide PA blocks and flexible blocks, including at least one carboxylic acid chain end, for improving the extrudability of the copolymer, the drawability of the copolymer, the abrasion resistance, the tear strength and the durability of the copolymer, without increasing its dispersity.

Block copolymer exhibiting improved abrasion resistance and improved tear resistance

The present invention relates to a non-crosslinked block copolymer foam composition, characterised in that it is in the form of a polymer matrix comprising closed cells containing gas, said matrix comprising: The present invention also relates to a foamable composition and a method for manufacturing said foam, as well as the use of the foam in sports shoe soles, balloons or balls, gloves, personal protection equipment, rail soles, automobile parts, construction parts, electrical and electronic equipment parts, audio equipment, sound- and/or heat-proofing, and parts used to damp vibrations.

Non-crosslinked copolymer foam composition with polyamide blocks and polyether blocks

The invention relates to a block copolymer comprising at least one rigid polyamide block and at least one flexible block, characterized in that the flexible block has an NH/OH ratio of concentrations of amine chain ends to alcohol chain ends which is within the range from 30 to 150, said concentrations being measured byH NMR (TF/CDCl). The invention also relates to the use of a flexible block for manufacturing a copolymer containing polyamide blocks and flexible blocks that is both hydrolysis-resistant and CO-permeable, with a permeability to COof at least 10 000 cm/m/24 h/atm for a 25 &#x3bc;m film of said copolymer, characterized in that said flexible block has a ratio of amine chain ends to acid chain ends which is within the range from 30 to 150.

Hydrolysis-resistant, CO-permeable block copolymer

The invention relates to a noncrosslinked block copolymer foam, comprising at least one rigid block and at least one flexible block, in which the copolymer includes at least one carboxylic acid chain end blocked with a polycarbodiimide. The invention also relates to a process for manufacturing this foam and to articles manufactured therefrom.

Block copolymer foam

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

A reinforced product, which can be used in particular for the reinforcing of a finished rubber article, comprises one or more textile or metallic reinforcing threads, the said thread or threads being covered individually or collectively with a sheath comprising a sheathing composition comprising one or more block copolymers comprising at least one polyamide block and at least one polyolefin block, the sheathed thread or threads being themselves embedded in a rubber composition.

Reinforced product comprising a self-adhesive composite reinforcement containing a block copolymer

The present invention relates to an extrudable polymer composition comprising: This invention relates in particular to the use of said composition in extrusion processes for manufacturing vapour-permeable objects.

Polymer composition that can be extruded into a vapour-permeable object

The invention relates to a non-cross-linked copolymer foam with polyamide blocks and polyether blocks, wherein: the polyamide blocks of the copolymer have an average molar mass of from 200 to 1,500 g/mol; the polyether blocks of the copolymer have an average molar mass of from 800 to 2,500 g/mol; and the weight ratio of the polyamide blocks to the polyether blocks of the copolymer is from 0.1 to 0.9. The invention also relates to a method for manufacturing said foam and items manufactured from said foam.

Copolymer foam with polyamide blocks and polyether blocks

The invention relates to the use of a block copolymer comprising Another subject of the invention is a block copolymer including

Block copolymer for protecting parts made from metal

A semi-crystalline polyamide including at least one monomer resulting from the condensation of a diacid and of a diamine of formula AP.Y, the semi-crystalline polyamide having the following general formula (I): AP.Y/(A)m/(Pip.Y')n/(B.Y&#x2033;)q and the semi-crystalline polyamide having an Mp1 less than or equal to approximately 150&#xb0; C., in particular less than or equal to approximately 130&#xb0; C., in particular less than or equal to approximately 120&#xb0; C. and/or a Tg less than or equal to approximately 60&#xb0; C., in particular less than or equal to approximately 50&#xb0; C., in particular less than or equal to approximately 40&#xb0; C., as determined respectively by DSC according to standard ISO 11357-3 (2013) and ISO 11357-2 (2013).

Polyamides based on aminoalkylpiperazine or aminoarylpiperazine for hot-melt adhesives

Composition comprising, on a weight basis, the total being equal to 100%:

Soft hand copolyamide composition

A powder of polyamide particles, in which: said polyamide includes more than 50 mol % of amine ends among the total number of amine and acid ends of the polyamide; said particles include, on the surface thereof, primary amine groups neutralized by a phosphorous Bronsted acid, such as phosphoric acid; and the D50 of the particles falls within the range of 100 nm to 50 &#x3bc;m, preferably 100 nm to 20 &#x3bc;m. A method for producing such a powder and to the production of aqueous dispersions including same.

Water-dispersible polyamide powder

Growing community of inventors

Evreux, France

Quentin P Pineau