| US 7,540,986 B2 | ||
| Solution casting method and polymer film | ||
| Toshinao Arai, Kanagawa (Japan); Hidekazu Yamazaki, Kanagawa (Japan); and Sadanobu Fujimoto, Kanagawa (Japan) | ||
| Assigned to FUJIFILM Corporation, Tokyo (Japan) | ||
| Filed on Mar. 29, 2005, as Appl. No. 11/91,749. | ||
| Claims priority of application No. 2004-097055 (JP), filed on Mar. 29, 2004. | ||
| Prior Publication US 2005/0242465 A1, Nov. 03, 2005 | ||
| Int. Cl. B29C 39/42 (2006.01) | ||
| U.S. Cl. 264—212 [264/216; 264/571] | 10 Claims |
| 1. A solution casting method comprising:
drawing with use of at least one suction device both side edge portions of a continuous polymer film to a plurality of rollers
arranged in a transporting direction of said continuous polymer film whose content of a remaining solvent is at least 30 wt.
%, such that said both side edge portions are in contact with said plurality of rollers, and a middle portion between said
both side edge portions is apart from said plurality of rollers; and
transporting said continuous polymer film toward a tenter device by rotating said plurality of rollers.
|