Terminal-modified imide oligomers and cured products thereof
AssigneeUbe Industries, Ltd.
InventorsRikio Yokota, Masatoshi Hasegawa, Hiroaki Yamaguchi
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Abstract
Terminal-modified imide oligomers with an inherent viscosity of 0.05-1 obtained by reacting 2,3,3′,4′-biphenyltetracarboxylic dianhydride, an aromatic diamine compound and 4-(2-phenylethynyl)phthalic anhydride, and their cured products. There are provided highly practical terminal-modified imide oligomers and their cured products, which cured products have satisfactory heat resistance and mechanical properties.
Claims7
An end-capped imide oligomer obtained by reacting a 2,3,3′,4′-biphenyltetracarboxylic acid compound, an aromatic diamine compound and 4-(2-phenylethynyl)phthalic anhydride and represented by the following formula:
- where X is an aromatic diamine residue and n is an integer,
- with an inherent viscosity (ηinh, 30° C., 0.5 g/100 ml solvent, solvent:
- N-methyl-2-pyrrolidone) of 0.05-1.
Dependencies are inferred from the claim text.