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:
Jun. 21, 2022
Filed:
Apr. 09, 2020
Basf SE, Ludwigshafen am Rhein, DE;
Matthaeus Kopczynski, Ludwigshafen, DE;
Ansgar Gereon Altenhoff, Ludwigshafen, DE;
Dieter Kolassa, Ludwigshafen, DE;
Hannes Ferdinand Zipfel, Ludwigshafen, DE;
Christian Eidamshaus, Ludwigshafen, DE;
Joerg Pastre, Ludwigshafen, DE;
BASF SE, Ludwigshafen am Rhein, DE;
Abstract
Epoxy resin-based fibre matrix compositions contain alkyl substituted ethylene amines such as dimethyldiethylenetriamine (DMDETA, also dimethyl-1,4,7-triazaheptane), as a curing agent. These curing agents are characterized by a short curing time for a comparatively long processing time, and make it possible to obtain cured epoxy resins that exhibit low brittleness and high tensile strength and have a high glass transition temperature; as a result of which the fibre matrix composition is suitable particularly for use in pultrusion and winding processes.