发明名称 |
METHOD AND APPARATUS FOR MANUFACTURING UNEVEN THICKNESS RESIN SHEET |
摘要 |
A method according to the invention comprises an extruding step of extruding molten resin from a die in a belt shape, a molding/cooling step of cooling and solidifying the extruded resin sheet while molding the same in uneven thickness by nipping the same between a mold roller and a nip roller, and a slow cooling step of slowly cooling the resin sheet peeled off the mold roller, and at least the former part of the slow cooling step has a substep of slowly cooling the resin sheet while holding the resin sheet in the original warp-free uneven thickness shape while so applying an external force to the resin sheet as not to obstruct the carriage of the resin sheet. |
申请公布号 |
EP2132019(A1) |
申请公布日期 |
2009.12.16 |
申请号 |
EP20080739731 |
申请日期 |
2008.03.27 |
申请人 |
FUJIFILM CORPORATION |
发明人 |
OGAWA, SHOTARO;HAYASHI, TAKAHIRO;SANO, YOSHIHIKO;NAGANO, HIDEO;KATSUMOTO, RYUICHI |
分类号 |
B29C47/88;B29C47/14;B29C47/90;B29L7/00;B29L11/00 |
主分类号 |
B29C47/88 |
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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