The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 22, 1997
Filed:
Sep. 17, 1996
Veronique Dazens, Pyla Sur Mer, FR;
Daniel Beziers, St. Medard en Jalles, FR;
Evelyne Chataignier, St. Medard en Jalles, FR;
Claude Filliatre, Talence, FR;
Jean-Jacques Villenave, Gradignan, FR;
Christian Servens, St. Aubin de Medoc, FR;
Societe Nationale Industrielle et Aerospatiale, Paris Cedex, FR;
Abstract
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.