NASA NTRS · 19750021190
Polyimide adhesives
Abstract
A process of preparing aromatic polyamide-acids for use as adhesives is described. An equimolar quantity of an aromatic dianhydride is added to a stirred solution of an aromatic diamine in a water or alcohol-miscible ether solvent to obtain a viscous polymer solution. The polymeric-acid intermediate polymer does not become insoluble but directly forms a smooth viscous polymer solution. These polyamic-acid polymers are converted, by heating in the range of 200-300 C and with pressure, to form polyimides with excellent adhesive properties.
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Progar, D. J., Bell, V. L., Saintclair, T. L.. 1974-12-16. Polyimide adhesives. https://ntrs.nasa.gov/citations/19750021190
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