To provide a manufacturing method of a laminated film enhanced in the joining properties of respective layers and comprising a cycloolefinic resin having an excellent ultraviolet absorbing effect, and the laminated film.
In the manufacturing method of the laminated film, the surface of a cycloolefinic resin film is coated with a coating solution containing the cycloolefinic resin, an ultraviolet absorber with a melting point of 120°C or above and a solvent with a boiling point of 115°C or below and the coating layer is dried to form an ultraviolet absorbing layer. This laminated film shows excellent properties originally possessed by the cycloolefinic resin such as transparency, heat resistance, chemical resistance, etc., is enhanced in the joining properties of the respective layers, can be manufactured without using an adhesive, shows sufficient ultraviolet absorbability and is also excellent in phase difference developability.
COPYRIGHT: (C)2008,JPO&INPIT
NAKAMURA KAZUHIRO
YAMAZAKI DAISUKE
MATSUMURA TAKESHI
| JP2001215320A | 2001-08-10 | |||
| JPH04154862A | 1992-05-27 | |||
| JPH07216152A | 1995-08-15 | |||
| JP2000226459A | 2000-08-15 | |||
| JP2004148542A | 2004-05-27 |
| WO2007037317A1 | 2007-04-05 |
Koji Makimura
Chihata Takahata
Toru Suzuki
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