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:
Feb. 15, 2022
Filed:
Dec. 19, 2019
Continental Structural Plastics, Inc., Auburn Hills, MI (US);
Probir Kumar Guha, Auburn Hills, MI (US);
Michael J. Siwajek, Auburn Hills, MI (US);
Philippe Bonte, Pouance, FR;
Marc-Phillippe Toitgans, Pouance, FR;
Dominique Boyer, Pouance, FR;
CONTINENTAL STRUCTURAL PLASTICS, INC., Auburn Hills, MI (US);
Abstract
A process for resin transfer molding (RTM) with staggered injection of a resin is provided that injects resin into a plurality of injection ports of a mold. The temperature and pressure applied to the mold are controlled during injection to limit promote rapid filling of the mold cavity. The injection ports are activated for injecting the resin in any order of individually, in groups, or pairings. Fibers are readily added to the mold separately or within the resin. Cycle times of from 1 to 5 minutes are provided for the process.