发明名称 |
POLYESTER FILM AND METHOD OF MANUFACTURING THE SAME, BACKSHEET FOR SOLAR CELL, AND SOLAR CELL MODULE |
摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method of manufacturing a polyester film having superior hydrolysis resistance and capable of holding adhesion to an adherend and withstand voltage properties for a long period of time. <P>SOLUTION: The method of manufacturing a polyester film includes: an extrusion step of melt extruding a polyester material resin containing at least one kind selected from a group consisting of aluminum and an aluminum compound as polymerization catalyst and having intrinsic viscosity of ≥0.71 and ≤0.90 by an extruder, wherein the discharge amount (Q/N; Q represents an extrusion amount per unit time [kg/hr] and N represents screw rotation speed [rpm]) of the extruder is set to 50 to 80% of the theoretical maximum discharge amount; an unoriented film forming step of forming an unoriented film by cooling and solidifying the melt extruded polyester resin on a cast roll; a biaxial orientation step of biaxially orienting the formed unoriented film in a longitudinal direction and a lateral direction; and a thermal fixing step of thermally fixing the oriented film formed by the biaxial orientation. <P>COPYRIGHT: (C)2012,JPO&INPIT |
申请公布号 |
JP2012056090(A) |
申请公布日期 |
2012.03.22 |
申请号 |
JP20100198315 |
申请日期 |
2010.09.03 |
申请人 |
FUJIFILM CORP |
发明人 |
SE TAKUMIN |
分类号 |
B29C47/92;B29C47/10;B29C55/12;B29K67/00;B29L7/00;C08J5/18;H01L31/042 |
主分类号 |
B29C47/92 |
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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