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US 4,908,429 AGranted
Special polyimides as thermoplasts
AssigneeBayer Aktiengesellschaft
InventorsWilfried Zecher, Dieter Arlt, Aziz E. Sayed
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Abstract
This invention relates to thermoplastic polyimides of 2,2-bis-phtalic acid anhydro-(4)-propane and 2,2-bis-(4-aminophenoxyphenyl-propane.
Claims6
Thermoplastic polyimides from 2,2-bis-phthalic acid anhydro-(4)-propane and 2,2-bis[4-aminophenoxyphenyl]-propane and optionally further diamines, acids or acid anhydrides.
Dependencies are inferred from the claim text.