| 摘要 |
<p>1,166,048. Organic thermoplastic filaments. E. C. CAPDEVILA. 7 Oct., 1966 [16 Oct., 1965], No. 44991/66. Heading B5B. Organic thermoplastic polymer is supplied in a hot molten condition to an extrusion die under pressure from below and the filaments are withdrawn from the die orifices in an upward direction. The polymers may be nylon, polypropylene or polyethylene.</p> |
