Stock material or miscellaneous articles – Composite – Of polyimide
Patent
1985-08-30
1986-04-01
Anderson, Harold D.
Stock material or miscellaneous articles
Composite
Of polyimide
4284744, 4284777, 528170, 528220, 528321, 528322, B32B 2708, B32B 2734
Patent
active
045797820
ABSTRACT:
Novel amine terminated bisaspartimides, especially 4,4'-bis{N.sup.2 -[4-(4-aminophenoxy)phenyl]aspartimido}diphenylmethane are prepared by a Michael-type reaction of an aromatic bismaleimide and an aromatic diamine in an aprotic solvent. These bisaspartimides are thermally polymerized to yield tough, resinous polymers cross-linked through --NH-- groups. Such polymers are useful in applications requiring materials with resistance to change at elevated temperatures, e.g., as lightweight laminates with graphite cloth, molding material prepregs, adhesives and insulating material.
REFERENCES:
patent: 3740378 (1973-06-01), Crivello
patent: 3998904 (1976-12-01), Balme et al.
Kumar et al., High Temperature Resins Based on Aromatic Amine Terminated Bisaspartimides.
Kumar et al., Matrix Resins Based on Aromatic Amine Terminated Bis Aspartimides.
Fohlen George M.
Kumar Devendra
Parker John A.
Anderson Harold D.
Brekke Darrell G.
Manning John R.
Marchant Robert D.
The United States of America as represented by the Administrator
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