Impregnated reinforcing fiber yarn and its use in producing composite materials

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 aroma...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Kummer-Dörner Sabine, Wohlmann Bernd, Schneider Markus, Stüsgen Silke, Witzel Silke, Pusch Jens
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS CORRECTING FLUIDS DYES FILLING PASTES FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR GENERAL PROCESSES OF COMPOUNDING INKS LAUNDERING LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS ORGANIC MACROMOLECULAR COMPOUNDS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING PERFORMING OPERATIONS POLISHES TEXTILES THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING TREATING TEXTILE MATERIALS BY LIQUIDS, GASES OR VAPOURS TREATMENT OF TEXTILES OR THE LIKE USE OF MATERIALS THEREFOR WOODSTAINS WORKING-UP
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Beschreibung
Zusammenfassung:	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.