C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
402/220
C08G 73/10 (2006.01) H01L 23/29 (2006.01)
Patent
CA 2028358
A polyimide having a high heat-resistance, good processability and recurring structural units of the formula (I): Image (I) wherein R is a tetravalent radical selected from the group consisting of an aliphatic radical having at least two carbon atoms, alicyclic radical, monocyclic aromatic radical, fused polycyclic aromatic radical and polycyclic aromatic radical bonded through a direct bond or a bridge member.
Ohta Masahiro
Tamai Shoji
Yamaguchi Akihiro
Fetherstonhaugh & Co.
Mitsui Chemicals Incorporated
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