Rhone-poulenc Nutrition Animale

Aerospatiale Societe Nationale Industrielle

Societe Nationale Industrielle Et Aerospatiale

Claude Filliatre

Pierre F Chabardes

Michel Pereyre

Bernard Delmond

Christian Servens

Dominique Serramedan

Daniel Beziers

Evelyne Chataignier

Jean-Jacques Villenave

Caroline Debaig-Valade

Veronique Dazens

The invention relates to the production of composite materials having a fibrous reinforcement and matrix obtained by the polymerization of acrylic monomers. These acrylic monomers are tetraacrylates of formula: ##STR1## in which R.sup.1 and R.sup.2, which can be the same or different, represent H or CH.sub.3, and Z is a divalent group having 1 or 2 aromatic or aliphatic cycles. For example, Z is a group derived from bisphenol A and R.sup.1 and R.sup.2 represent H. The composite materials can be prepared by injection moulding.

Composite material having a fibrous reinforcement and matrix obtained by

A process for preparing cyclocitral by expoxidizing a pyronene.

Process for preparing cyclocitral

Epoxides represented by the formula: ##STR1## in which A represents a methylene or oxirane group and a process for their preparation.

Epoxides and a process for their preparation

A method is provided for forming a composite ceramic material, in which a fibrous structure is first of all formed which is then embedded in the material of a ceramic matrix. To introduce said matrix into said structure, the following succession of operations is carried out:

Method of forming a fibrous structure composite ceramic material and

Growing community of inventors

Talence, France

Claude Filliatre