The present invention relates to a method for preparing a polyimide film through a roll-to-roll method, and more specifically to a method for preparing a polyimide film with excellent optically isotropic properties through an annealing process during the manufacture of the polyimide film.
申请公布号
WO2012091231(A1)
申请公布日期
2012.07.05
申请号
WO2011KR03909
申请日期
2011.05.27
申请人
KOLON INDUSTRIES, INC.;HONG, KI IL;PARK, SANG YOON;PARK, HYO JUN;JUNG, HAK GEE
发明人
HONG, KI IL;PARK, SANG YOON;PARK, HYO JUN;JUNG, HAK GEE
