Atofina

Arkema Inc.

Arkema France

Christophe Lacroix

Alain Bouilloux

Thibaut Montanari

Reinhard Linemann

Thierry Briffaud

Hermann Josef Hilgers

Philippe Blondel

Gilles Meunier

Philippe Bussi

Frederic Malet

David Silagy

Claude Granel

Martin Baumert

Michael Tran

Yves Lermat

Jean-Marc Le Blevec

Hermann Hilgers

Roparz Kervennal

Jocelyn Mauffrey

A breathable film includes at least one polymer (a) taken from the group comprising an ethylene/alkyl (meth)acrylate copolymer (a1), an optionally neutralized ethylene/ (meth)acrylic acid copolymer (a2), an ethylene/vinyl monomer copolymer (a3), the (a1)/(a2) blend, the (a1)/(a3) blend, the (a2)/(a3) blend and the (a1)/(a2)/(a3) blend, and/or includes at least one functionalized polyethylene (b); and at least one copolymer (c) having copolyamide blocks or polyester blocks and polyether blocks.

Breathable film

The invention relates to a mixture comprising by weight, to give a total of 100%, 99-10% a polyamide block and polyether block copolymer (A) predominately consisting of lauryl lactam radicals, 1-99% at least on type of polymer (B) selected from polyamides other than polyamide 12, copolyamides which do not consist of the lauryl lactam radicals and the polyamide block and polyether block copolymers whose polyamide blocks do not predominantly consist of the lauryl lactam radicals. The articles, for example, films, foils, strings and tubes made from the inventive mixture are also disclosed.

Mixtures based on thermoplastic elastomers

The present invention relates to polyetheresteramides (B) containing polyamide blocks comprising dicarboxylic acid sulphonates either as polyamide-block chain limiters or combined with a diamine as one of the constituent monomers of the polyamide block, and the containing polyether blocks consisting essentially of alkylene oxide units. The invention also relates to polyetheresteramides (B) containing polyamide blocks of the polyamide oligomer type of low molecular mass or of the copolyamide type which comprise dicarboxylic acid sulphonates and containing polyether blocks which are adducts of alkylene oxide with an aromatic diol. The invention also relates to antistatic or breathable polymer compositions comprising a thermoplastic polymer (A) and at least one of the above polyetheresteramides (B).

Polyetheresteramides and compositions of antistatic polymers containing the same

The present invention relates to thermoplastic polyesters, which comprise, by weight:

Thermoplastic polyester compositions having improved impact properties

The present invention relates to a multilayer structure comprising a transparent polyamide-based layer and a layer based on a thermoplastic polyurethane (TPU). The invention also relates to a decorated article consisting of an object to which the above structure has been bonded, the polyamide layer being on the outside. According to another embodiment, the polyamide/TPU structures may be bonded to a polyurethane foam or to a polyurethane resin. It is also possible to overmould the polyurethane foam or the polyurethane resin to the polyamide/TPU structure placed in a mould, the polyamide layer being adjacent to the mould wall. The structure obtained is useful, for example for making skis or sports shoes. The invention also relates to these structures. Advantageously, the polyamide layer is semicrystalline. Advantageously, the TPU layer is transparent. Each of the layers may be formed from several layers.

Polyamide/polyurethane multilayer structures for decorated articles

A multilayer structure based on polyamides, comprising:

Multilayer structure based on polyamides and on a tie layer made of a copolyamide blend

The invention concerns thermoplastic polyesters (such as PET or PBT) comprising, by weight, the total being 100%: 60 to 99% of thermoplastic polyester; 1 to 40% of impact modifier comprising: (a) a core-shell copolymer (A), (b) an ethylene copolymer (B) selected among ethylene copolymers (B1) and an unsaturated carboxylic acid anhydride, ethylene copolymers (B2) and an unsaturated epoxy compound and mixtures thereof, (c) a copolymer (C) selected among ethylene copolymers (C1) and an alkyl (meth)acrylate, ethylene copolymers (C2) and (meth)acrylic acid optionally neutralised and mixtures thereof. The invention also concerns an impact modifying composition which can be added in thermoplastic polyesters to improve their shock-proof properties and comprising constituents (A), (B) and (C).

Thermoplastic polyesters with improved shock-proof properties and impact modifying composition

The invention relates to a composition comprising, for 100 parts by weight, 99-60 parts of a styrenic polymer (A), 1-40 parts of (B)+(C), (B) being a polyamide block and polyether block copolymer essentially comprising ethylene oxide patterns (C2H4-O)&#x2014;, (C) being a compatibilizer of styrene and at least one polymerized block comprising ethylene patterns, (B)/(C) ranging from 2 to 10.

Antistatic strenique polymer compositions

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 composition comprising, per 100 parts by weight:

Antistatic polymer compositions

Composition based on polypropylene on an ethylene/alkyl acrylate copolymer

A composition and articles, e.g. computer casings comprising, per 100 parts by weight: 99 to 60 parts of a styrene polymer (A), 1 to 40 parts of (B)&plus;(C), (B) being a copolymer containing polyamide blocks and polyether blocks comprising essentially ethylene oxide units &mdash;(C H &mdash;O)&mdash;, (C) being a compatibilizer chosen from (C1) low-mass copolymers of styrene and of an unsaturated carboxylic acid anhydride, (C2) copolymers of ethylene and of an unsaturated carboxylic acid anhydride, (C3) copolymers of ethylene and of an unsaturated epoxy, (C4) block copolymers (C4) SBS or SIS grafted by an unsaturated carboxylic acid or an unsaturated carboxylic acid anhydride and mixtures thereof, the weight ratio (B)/(C) being between 2 and 10.

Antistatic styrene polymer compositions

The present invention relates to an antistatic polymer composition and more specifically to a composition comprising a thermoplastic polymer (A) and a copolymer (B) comprising polyamide blocks and polyether blocks comprising essentially ethylene oxide units &mdash;(C H &mdash;O)&mdash;, the copolymer (B) having a melting temperature of between 80 and 150&deg; C. It is of use for the polymers (A) which are heat-sensitive or which are processed at low temperature.

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Harquency, France

Christophe Lacroix