| 摘要 |
A reinforced acrylic fiber and the method for making the same wherein a diamine selected from the group consisting of ethylene diamine, piperazine, and hexamethylene diamine is reacted with a diisocyanate selected from the group consisting of: <IMAGE> <IMAGE> OCNCH2(CH2)4CH2NCO in the presence of a spinning dope made up of dimethylacetamide containing 10 to 30 weight percent of acrylic polymer dissolved therein. This reaction forms a polyurea which is present in discrete particles in the spinning dope. The spinning dope containing the polyurea is extruded to form fibers which have good hot-wet properties.
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