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. 08, 2025
Filed:
Jul. 22, 2020
Arkema France, Colombes, FR;
Gilles Hochstetter, Colombes, FR;
ARKEMA FRANCE, Puteaux-la Défense, FR;
Abstract
A thin-walled mold and a method for manufacturing a part made of composite material, the material including reinforcing fibers and a polymer matrix, the method including the following consecutive steps: installing, in a matrix mounted on a press, a closed thin-walled mold in which reinforcing fibers have been arranged; closing the press; injecting a polymer or a reactive composition including at least one prepolymer, at least one monomer or a mixture thereof, in the molten state, into the closed thin-walled mold; keeping the press closed during all or part of the polymerisation of the polymer matrix when a reactive composition is used; opening the press and removing the thin-walled mold from the press, while maintaining a residual pressure of between 0.7 and 10 bar, preferably between 0.7 and 5 bar, inside the mold; and cooling the mold under said residual pressure.