Rhodia Operations

Rhodia (china) Co. Ltd.

Billion S.a.s.

Georges Pernoud Sas

Specialty Operations France

Centre Technique Des Industries Mecaniques

Gilles Orange

Stéphane Jeol

Roland Durand

Franck Touraud

Didier Tupinier

Vincent Mollet

Claude-Emmanuel Hedoire

Christiane Prebet

Olivier Gilbain

Richard Bourdon

Jean-Michel Lebrun

Mathilde Mercier

Philippe Papin

Xiao Ping You

Fabien Pascal

Patrice Jacquet

Alexandre Giroud

Mickaël Aubry

Sébastien Comas-Cardona

The present invention relates to the use of thermoplastic polymer compositions for impregnating reinforcing materials in the form of fabric or industrial fabrics for the manufacture of composite materials. The field of the invention is that of composite materials as well as molding/consolidation processes and obtained parts. The invention more particularly relates to a method of manufacturing a composite article by injection molding comprising at least the steps of introducing at least one reinforcement fabric into a preheated mold, partial closure of the mold, a temperature rise step of the mold, optionally a step of maintaining the temperature of the mold before injection of a thermoplastic polymer composition, a step of injecting a thermoplastic polymer composition into the mold, a step of mold closure to the final part thickness allowing the flow of the resin through the reinforcing fabric, a cooling step and a recovery step of the obtained composite article.

Process for manufacturing composite articles

The invention relates to a thermoplastic composition having improved fluidity in the molten state, comprising at least:

Polyamide mixture having improved fluidity

The invention concerns a thermoplastic composition having high fluidity in the molten state, comprising at least: The invention also concerns a process for producing a composite article from such a composition by impregnating a reinforcement such as a fabric or a preform, the composite article obtained according to this process, and the use of an oligomer (b) in combination with at least one phenolic polymer (c), as a plasticizing additive in a thermoplastic polymer matrix.

Thermoplastic composition having high fluidity

Uses of low molecular mass, non-evolutive polyamide resins for making composite articles are described. Articles obtained from such resins having good mechanical properties, such as rigidity, breaking load, impact resistance, and fatigue behavior in particular, even when the articles are manufactured according to cycles shorter than those usually used, and without any processing before or after the manufacture of the composite articles, are also described.

Composite polyamide article

High fluidity polyamides are used for the impregnation of reinforcing cloth materials, namely, industrial fabrics, which impregnated cloths are converted into composite shaped articles.

Composite polyamide shaped articles

A method for manufacturing a composite article is described that includes a step of impregnating a reinforcing fabric with a semi-aromatic polyester composition in the molten state, having a melt viscosity &#x3b7; of 20 Pa&#xb7;s to 200 Pa&#xb7;s. The reinforcing fabric can be maintained at a temperature of plus or minus 50&#xb0; C. relative to the melting temperature of the polyester.

Composite polyester article

The use of a polyamide including hydroxyaromatic units in order to increase the acid resistance of a polyamide composition is described. A polyamide composition comprising a polyamide that includes hydroxyaromatic units and use thereof for the manufacture of various plastic articles such as, for example, calibrated particles or injection-molded parts is also described. Such a composition is especially useful in the field of the recovery of slurries, liquids and gases present in underground reservoirs, and in particular in the field of the extraction of hydrocarbons, such as crude oil or natural gas.

Polyamide composition

An additive for a bitumen or polymer modified bitumen product, which is prepared by mixing together a sulphur-based product, a vulcanized rubber, for example, a waste vulcanized rubber, preferably a fatty acid, and a bitumen, is described. The use of this additive for preparing, with very limited gaseous emissions, elastomer-containing bituminous product is also described. Such use may be especially suitable for making bituminous coated material including, for example, asphalt concrete.

Additive for a bitumen and bituminous product

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Gilles Orange