发明公开
EP1422541A2 Process for producing three-dimensional polyimide optical waveguide
有权
Verfahren zur Herstellung von dreidimensionalen Polyimid-Wellenleitern。
- 专利标题： Process for producing three-dimensional polyimide optical waveguide
- 专利标题（中）： Verfahren zur Herstellung von dreidimensionalen Polyimid-Wellenleitern。
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申请号： EP03026967.4申请日： 2003-11-25
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公开(公告)号： EP1422541A2公开(公告)日： 2004-05-26
- 发明人: Mune, Kazunori , Naitou, Ryuusuke , Mochizuki, Amane , Hino, Atsushi , Horiike, Mika
- 申请人： NITTO DENKO CORPORATION
- 申请人地址： 1-2, Shimohozumi 1-chome Ibaraki-shi Osaka JP
- 专利权人： NITTO DENKO CORPORATION
- 当前专利权人： NITTO DENKO CORPORATION
- 当前专利权人地址： 1-2, Shimohozumi 1-chome Ibaraki-shi Osaka JP
- 代理机构： Grünecker, Kinkeldey, Stockmair & Schwanhäusser Anwaltssozietät
- 优先权： JP2002341565 20021125
- 主分类号： G02B6/12
- IPC分类号： G02B6/12 ; G02B1/04 ; C08L79/00
摘要：
This invention provides a process for producing a three-dimensional polyimide optical waveguide, which comprises: (I) irradiating a polyamic acid film with a laser beam while converging the laser beam at an inside portion of the film and relatively moving the light convergence point, the polyamic acid film containing: (a) a polyamic acid obtained from a tetracarboxylic dianhydride and a diamine; and (b) per 100 parts of the polyamic acid, from 0.5 part by weight to less than 10 parts by weight of a specific 1,4-dihydropyridine derivative represented by formula (I):
and then, (II) heating the polyamic acid film to imidize the polyamic acid, thereby obtaining an optical waveguide having a continuous core region where the refraction index has been changed, in the thus formed polyimide film.
and then, (II) heating the polyamic acid film to imidize the polyamic acid, thereby obtaining an optical waveguide having a continuous core region where the refraction index has been changed, in the thus formed polyimide film.
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