| abstract |
An ultrahigh-molecular-weight polyolefin composition having excellent stretchability, storage stability and transportation stability is obtained by mixing a powder of an ultrahigh-molecular-weight polyolefin with a normally solid flowability improver at a temperature lower than the melting point of the polyolefin to form a dispersion, and then melt-kneading the dispersion. This composition is useful for the production of stretched articles such as stretched filaments. |