| 摘要 |
In an aqueous sizing agent for glass fibers, comprising a bonding agent, a film-former and, optionally, a lubricant, wetting agent and/or other conventional additive, the improvement which comprises including therein a masked polyisocyanate which is water-soluble or dispersible. The sized glass fibers are especially useful in reinforcing polymeric products such as polyamides, giving improved physical properties.
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