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发明名称
Production of filaments
摘要
An extruded sheet or the like of cold-drawable polymer such as polypropylene is embossed as a molten sheet by a circumferentially multi-grooved roller and stretched in the direction of the embossed grooves to split into filaments along the grooves.
申请公布号
US4134951(A)
申请公布日期
1979.01.16
申请号
US19770771097
申请日期
1977.02.23
申请人
SMITH & NEPHEW POLYFABRIK LIMITED
发明人
DOW, JAMES;LLOYD, RONALD;PATCHELL, ALBERT G.
分类号
D01D5/42;(IPC1-7):B32B3/10
主分类号
D01D5/42
代理机构
代理人
主权项
地址
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