| 摘要 |
<p>The invention relates to pre-impregnated yarn made of a bundle of reinforcement fiber filaments, wherein the reinforcement fiber filaments are impregnated with 0.1 to 2 wgt.-% of a first resin composition infiltrated in the pre-impregnated yarn and are at least partially connected via the first resin composition and wherein the first resin composition comprises at least two bisphenol A epichlorhydrin resins H1 and H2 in a weight ratio H1:H2 of 1.1 to 1.4, wherein H1 is solid at room temperature and H2 is liquid at room temperature, and wherein the first resin composition further comprises an aromatic polyhydroxyether P1 having an acid count of 40 to 55 mg KOH/g and an average molecular weight MN of 4,000 to 5,000 g/mol. The pre-impregnated yarn has a second resin composition on the outside of the bundle in the form of adhesive particles or drops, which composition is solid at room temperature, has a melting temperature in the range of 80 to 150°C and is present on the outside of the bundle in a concentration of 0.5 to 10 wgt.-%, wherein at least 50% of the surface of the outside of the bundle and the interior of the bundle is free of the second resin composition.</p> |
