Title:
HEAT-RESISTANT TRANSPARENT POLYIMIDE WITH OPTICAL ACTIVITY
Document Type and Number:
Japanese Patent JP2009114327
Kind Code:
A
Abstract:
To provide an aliphatic polyimide oligomer having melt-molding property, heat curable into an optically active transparent polyimide with thermal cracking temperature reaching nearly 500C.
The optically active polyimide oligomer contains optically active (1R,2R)-(+)-1,2-cyclohexanediamine or (1S,2S)-(-)-1,2-cyclohexanediamine as an aliphatic diamine and crosslink reactive groups on both ends.
Inventors:
NISHINO HIDEO
Application Number:
JP2007289164A
Publication Date:
May 28, 2009
Filing Date:
November 07, 2007
Export Citation:
Assignee:
KRI INC
International Classes:
C08G73/10