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:
Jan. 10, 2017
Filed:
Jan. 21, 2014
Toho Tenax Europe Gmbh, Wuppertal, DE;
Sabine Kummer-Dörner, Schwelm, DE;
Silke Stüsgen, Neuss, DE;
Silke Witzel, Wuppertal, DE;
Jens Pusch, Wegberg, DE;
Markus Schneider, Düsseldorf, DE;
Bernd Wohlmann, Düsseldorf, DE;
TOHO TENAX EUROPE GMBH, Wuppertal, DE;
Abstract
A pre-impregnated yarn including a bundle of reinforcing fiber filaments having a bundle interior and a bundle outer side, a first resin composition, and a second resin composition. The first resin composition includes at least one urethane resin, H1, produced from a reaction of a bifunctional aromatic epoxy compound based on bisphenol A, an aromatic polyisocyanate, and a polyalkylene glycol; an oxyalkylated bisphenol A resin, H2; and aromatic polyhydroxy ether P1. The filaments are impregnated with and at least partially connected via the first resin composition. The first resin composition is present in a concentration of 0.1 to 4 wt % relative to a total weight of the pre-impregnated yarn. The second resin composition is on the bundle outer side in the form of particles or drops adhering to the filaments, and is in a concentration of 0.5 to 14 wt % relative to the total weight of the pre-impregnated yarn.