发明名称 |
Processo e aparelhagem para fiação de filamentos de polímero, fibra ou filamento, material não tecido e produto higiênico |
摘要 |
<p>Process and apparatus for spinning polymer filaments permits the obtaining of skin-core filament structure by feeding a polymer composition to a spinnerette at a flow rate sufficient to obtain a spinning speed of about 10 to 200 meters per minute through the spinnerette; heating the polymer composition at a location at or adjacent to the spinnerette so as to heat the polymer composition to a sufficient temperature to obtain a skin-core filament structure upon quenching in an oxidative atmosphere; extruding the heated polymer composition through the spinnerette at a spinning speed of about 10 to 200 meters per minute to form molten filaments; and quenching the molten filaments in an oxidative atmosphere so as to effect oxidative chain scission degradation of at least a surface of the molten filaments to obtain filaments having a skin-core structure. <IMAGE></p> |
申请公布号 |
BR9402520(A) |
申请公布日期 |
1995.03.14 |
申请号 |
BR19949402520 |
申请日期 |
1994.06.23 |
申请人 |
HERCULES INCORPORATED |
发明人 |
RICHARD J. COFFIN;RAKESH KUMAR GUPTA;SHIV SIBAL;KUNIHIKO TAKEUCHI |
分类号 |
B29C47/86;D01D4/00;D01D4/02;D01D5/08;D01D5/084;D01D5/088;D01F1/10;D01F6/00;D01F6/04;D01F6/06;D01F6/44;D01F6/48;D01F8/06;D04H1/54;D04H3/16;(IPC1-7):C08J7/06 |
主分类号 |
B29C47/86 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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