发明名称 |
Method for manufacturing liquid crystalline resin composition |
摘要 |
A liquid crystalline resin composition having 5 to 30% by weight of hollow filler and 5 to 30% by weight of fibrous filler is manufactured using a melting-kneading extruder provided with a screw. (1) The liquid crystalline resin is fed from a main feed port located at upstream side in the extruding direction, while a hollow filler and a fibrous filler are fed from a side feed port located at downstream side in the extruding direction. The manufacture is conducted under the specific conditions between (2) L1 as the ratio L/D in which D is the screw diameter and L is the distance between the position of the side feed port and the position where the internal pressure of the extruder reaches 0.1 MPa; (3) L2 as the ratio L/D in which D is the screw diameter and L is the length of maintaining the internal pressure of the extruder at or above 0.1 MPa after feeding the hollow filler and the fibrous filler; and
(4) La as the ratio L/D in which D is the screw diameter and L is the length of the resin plasticizing zone. |
申请公布号 |
EP1621319(A1) |
申请公布日期 |
2006.02.01 |
申请号 |
EP20050254669 |
申请日期 |
2005.07.27 |
申请人 |
POLYPLASTICS CO., LTD. |
发明人 |
FUKATSU, HIROKI;SAKAI, MASAYUKI;WATANABE, KAZUFUMI |
分类号 |
B29C47/00 |
主分类号 |
B29C47/00 |
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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