3. Polyimide processing
3.1 Business forms
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Type "A" polyimides
Type A polyimides are most often marketed as finished products (films, fibers, etc.) or as blanks (tubes, bars, etc.) for machining. Precursor solutions (polyamic acid) are also available.
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Type "B" polyimides
Type B polyimides are marketed either as granules, filled or unfilled, with viscosity ranges adapted to the various application processes (injection, extrusion, etc.), or as semi-finished products (films, film and cable sheaths, tubes, sticks, etc.).
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Polyimide processing
Applications
Economic data
Because of their high price (around thirty times that of polyamides), the market for condensation polyimides is still limited to high-performance applications, and tonnages consumed remain low, even though this market is growing steadily.
The largest market for polyimides is in the United States, with the fastest-growing sectors being film and fibers.
In Europe, the key sectors...
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