发明名称 |
PROCESS FOR PRODUCING CYCLOOLEFIN RESIN COMPOSITION |
摘要 |
A process for producing a cycloolefin resin composition comprising a cycloolefin resin and an additive by using a twin-screw extruder is provided, in which loss of the additive caused by volatilization through a vent during kneading is reduced and kneading of resin material with the additive can be sufficiently carried out. When the cycloolefin resin and the additive are kneaded by using a vented twin-screw extruder (10) to produce the cycloolefin resin composition containing the additive, an additive introduction opening (3) is disposed downstream of a vent (2) located nearest to a discharge opening (13) of the twin-screw extruder, and the additive is charged through the additive introduction opening located at a distance from the discharge opening of the twin-screw extruder in the range between longer than 10D and not longer than 30D. |
申请公布号 |
EP1842645(A1) |
申请公布日期 |
2007.10.10 |
申请号 |
EP20050822524 |
申请日期 |
2005.12.27 |
申请人 |
MITSUI CHEMICALS, INC. |
发明人 |
MIURA, KIMIYOSHI;YOSHIMOTO, SADAO;KOGA, NOBORU;SUZUKI, TAKESHI;SHIBUYA, ATSUSHI |
分类号 |
C08J3/20;B29B7/46;B29B7/88;B29C47/10;B29K45/00 |
主分类号 |
C08J3/20 |
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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