发明名称 |
Biaxially stretched polyester films. |
摘要 |
A biaxially stretched polyester film comprising a polyester and zirconium as an internal particle material, produced by polycondensation of terephthalic acid or its esterified derivative and alkylene glycol as the major essential monomeric components in the presence of a polycondensation catalyst, during which zirconium in the form of any compound thereof in an amount of 80 to 2500 ppm in terms of zirconium atom to the polyester as produced being introduced into the reaction system at a stage after the initiation of the reaction and before the intrinsic viscosity of the reaction mixture reaching 0.2, and subjecting the produced polyester to film forming. |
申请公布号 |
EP0083746(A1) |
申请公布日期 |
1983.07.20 |
申请号 |
EP19820111473 |
申请日期 |
1982.12.10 |
申请人 |
TOYO BOSEKI KABUSHIKI KAISHA |
发明人 |
KUZE, KATSUAKI;HASHIMOTO, HIROSHI;OHTA, TAKESHI;AKAISHI, TSUKASA;TAKEUCHI, KUNIO;KAMATANI, HIROYOSHI |
分类号 |
B29C49/00;B29C55/00;B29C55/12;B29K67/00;B29L7/00;C08G63/78;C08J5/18;C08K3/00;C08K5/00 |
主分类号 |
B29C49/00 |
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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