Diaminobenzene derivatives and polyimides prepared therefrom
AssigneeNissan Chemical Industries, Ltd.
InventorsTakayasu Nihira, Yoshio Miyamoto, Hideyuki Endo, Toyohiko Abe
Life of this patent
Estimating the term…
Abstract
A diaminobenzene derivative of the formula (I): ##STR1## wherein each of P and Q which may be the same or different from each other, is a single bond, or a bivalent organic group selected from the group consisting of --O--, --COO-- and --CONH--, R.sub.1 is a C.sub.2-22 straight chain alkylene group, and R.sub.2 is a cyclic group selected from the group consisting of an aromatic ring, an aliphatic ring, a heterocyclic ring and substituted forms of such rings.
Claims9
A diaminobenzene derivative of the formula (I) ##STR17## wherein R.sub.1 is a C.sub.2-22 straight chain alkylene group, and R.sub.2 is a cyclic group selected from the group consisting of an aliphatic ring and substituted forms of such rings, with a substituent selected from the group consisting of an alkyl group, a halogen atom, a methoxy group, a trifluoromethoxy group, a nitro group, an amino group, a cyano group, an azo group, a formyl group, an acetyl group and an acetoxy group.
A diaminobenzene derivative of the formula (I) ##STR18## wherein R.sub.1 is a C.sub.2-22 straight chain alkylene group, and R.sub.2 is a cyclic group selected from the group consisting of an aromatic ring substituted with a substituent selected from the group consisting of an alkyl group, a halogen atom, a methoxy group, a trifluoromethoxy group, a nitro group, a cyano group, an azo group, a formyl group, an acetyl group and an acetoxy group.
A diaminobenzene derivative, which is 4-3-(4-biphenyloxy)propoxy)-1,3-diaminobenzene.
Dependencies are inferred from the claim text.