Elf Atochem S.a.

Atofina

Arkema France

Arkema (Formerly Atofina)

Elf Atovhem S.a.

Christophe Le Roy

Patrice Robert

Jerome Pascal

Regis Jacquemet

Xavier Marical

Jean-Claude Jammet

Yves Germain

Joachim Merziger

Jérôme Pascal

J&eacute;r&ocirc;me Pascal

Jean-Luc Beal

Described are structures comprising, successively: a first layer of high density polyethylene (HDPE), a layer of binder, a second layer of EVOH or of a mixture based on EVOH, optionally a third layer of polyamide (A) or of a mixture of polyamide (A) and polyolefin (B). Also described are devices for transferring or storing fluids and more particularly tubes, tanks, chutes, bottles and containers consisting of the above structure and in which the barrier layer (the second or the combination of the second and the third layer) is in direct contact with the fluid contained or transported.

Multilayer structure and tank consisting of this structure, which has a barrier layer in direct contact with the fluid contained

The present invention relates to a coextrusion binder useful for petrol tanks of HDPE/binder/EVOH or PA/binder/HDPE structure.

Coextrusion binder, its use for a multilayer structure and the structure thus obtained

Coextrusion binder based on cografted metallocene polyethylene

A gas-impermeable elastic membrane including a co-polymeric gas-impermeable film including OH groups, positioned between two layers of a co-polymer containing blocks of polyamides and of polyesters, with a rubber coating on at least one of the two layers, as well as a method of manufacturing the membrane.

Gas-impermeable elastic membrane and hydropnematic accumulator equipped with this measure

The invention relates to a coextrusion binder obtained by grafting a mixture of a copolymer of ethylene and of an elastomer of EPR type with an unsaturated carboxylic acid anhydride or its derivatives. The grafted mixture is optionally diluted in another copolymer of ethylene. The binder is useful in preparing polyolefin/binder/polyamide or EVOH structures. These structures are useful in preparing rigid hollow bodies

Coextrusion binder, its use in a multilayer structure and the structure thus obtained

Multilayer structure comprising a binder and a layer of polyketone

The invention relates to a coextrusion binder obtained by grafting a mixture of a copolymer of ethylene and of an elastomer of EPR type with an unsaturated carboxylic acid anhydride or its derivatives. The grafted mixture is optionally diluted in another copolymer of ethylene. The binder is useful in preparing polyolefin/binder/polyamide or EVOH structures. These structures are useful in preparing rigid hollow bodies.

Coextrusion binder, its use in a multilayer structure and the structure

Growing community of inventors

Evreux, France

Christophe Le Roy