Epoxy resins based on diaminobisimide compounds

Details Epoxy resins based on diaminobisimide compounds Epoxy resins based on diaminobisimide compounds

1995-06-02

1998-01-20

Krass, Frederick

Stock material or miscellaneous articles

Composite

Of epoxy ether

525423, 525504, 528 99, 528109, 528113, 528117, 528322, 548429, 548433, 548461, 548472, 548473, 548476, 548513, C08G 5944, C08G 5954

Patent

active

057099472

ABSTRACT:
A method for the preparation of a diaminobisimide compound of the formula (I) substantially free of oligomers: ##STR1## wherein Ar.sup.1 is an optionally substituted aromatic residue which provides for good conjugation between the nitrogen containing groups; and
Ar is an optionally substituted aromatic residue characterized in that at least two molar proportions of an aromatic diamine of the formula (II)

REFERENCES:
patent: 4340715 (1982-07-01), Gounder et al.
patent: 4622383 (1986-11-01), Araps et al.
patent: 4705833 (1987-11-01), Saito et al.

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