发明名称 |
Method for processing PET |
摘要 |
<p>Polyethylene terephthalate pellets are fed through a series of evacuated feed hoppers (8, 9) to a planetary roller extruder (3) where they are worked mechanically under vacuum without melting at a temperature that is at least 10[deg]C below the glass transition temperature, preferably at 130[deg]C. The rollers have an intermeshing spiral pattern of pins to continually expose new surfaces.</p> |
申请公布号 |
EP1454734(A1) |
申请公布日期 |
2004.09.08 |
申请号 |
EP20030029531 |
申请日期 |
2003.12.21 |
申请人 |
ENTEX RUST & MITSCHKE GMBH;MKF FOLIEN GMBH MINDERJAHN & KIEFER |
发明人 |
RUST, HARALD;ABAK, ILMI |
分类号 |
B29C47/76;B29B13/02;B29B13/06;B29C47/42;B29C47/50;B29D7/00;B29K67/00;(IPC1-7):B29C47/76 |
主分类号 |
B29C47/76 |
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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