发明名称 |
APPARATUS AND METHOD FOR PRODUCING PARTICLES OF TERMOPLASTIC MATERIAL |
摘要 |
<p>In an apparatus for producing particles of thermoplastic material by extruding material (23) in a plastic state through orifices (18) in a die plate (12) and thereafter cutting the extruded plastic material into crumb (23 min ) upon exit from the orifices, an air supply (22) is coupled to a cutting chamber (20) for providing a stream (21) of air across the face of the die plate to cut and convey the crumb away from the orifices. The cutting chamber is arranged to include a restricted throat (24) having an exit area in close proximity to the orifices and a further portion for providing an accumulation zone adjacent the orifices, the accumulation zone (20 min ) having a cross-sectional area which increases from the exit area of the throat to a product discharge zone (29) remote from the orifices in a downstream direction.</p> |
申请公布号 |
EP0357222(A3) |
申请公布日期 |
1991.12.18 |
申请号 |
EP19890307638 |
申请日期 |
1989.07.27 |
申请人 |
EXXON CHEMICAL PATENTS INC. |
发明人 |
LUKER, NORMAN ELVOY |
分类号 |
B29B9/06;B29C47/08;(IPC1-7):B29B9/06 |
主分类号 |
B29B9/06 |
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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