| 摘要 |
Glass fibers for reinforcing thermoplastic resins are sized with an aqueous dispersion comprising a polyurethane-ionomer as a film-forming agent and a bonding agent comprising an epoxy-containing alkoxysilane. Advantageously the polyurethane is a very small particle ionomer and the bonding agent is selected from the group consisting of (a) an epoxyalkyl alkoxysilane+an aminoalkyl alkoxysilane, (b) an epoxyalkyl alkoxysilane+a low-molecular weight aliphatic primary or secondary mono-amine, (c) an aminoalkyl alkoxysilane+a low-molecular weight monoepoxide, and (d) an epoxyalkyl alkoxysilane. |
