Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1976-10-22
1977-12-27
Lieberman, Allan
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
156331, 260 304N, 260 332R, 260 326NT, 260 334R, C08K 506, C08L 7908, C09J 300, C09J 506
Patent
active
040653455
ABSTRACT:
A process of preparing aromatic polyamide-acids for use as adhesives by reacting an aromatic dianhydride to an approximately equimolar amount of an aromatic diamine in a water or lower alkanol miscible ether solvent and wherein the polyamide-acids are converted to polyimides by heating to the temperature range of 200.degree. - 300.degree. C. and wherein the polyimides are thermally stable and insoluble in ethers and other organic solvents.
REFERENCES:
patent: 3347808 (1967-10-01), Lavin et al.
patent: 3652511 (1972-03-01), Vincent et al.
patent: 3699075 (1972-10-01), Lubowitz
patent: 3705870 (1972-12-01), Darmory et al.
Bell Vernon L.
Progar Donald J.
St. Clair Terry L.
Lieberman Allan
Manning John R.
Nelson Wallace J.
Osborn Howard J.
The United States of America as represented by the United States
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