Stock material or miscellaneous articles – Structurally defined web or sheet – Discontinuous or differential coating – impregnation or bond
Patent
1983-09-21
1986-03-18
Cannon, James C.
Stock material or miscellaneous articles
Structurally defined web or sheet
Discontinuous or differential coating, impregnation or bond
156 53, 174110SR, 244119, 427 96, 427117, 428271, 428272, 428273, 428280, 428290, 428294, 428407, 428408, 4284735, 428698, 428901, 428902, 524104, 524173, 524233, 524361, 524378, 524379, 524445, 524449, 528183, 528353, 564430, B32B 2728, C07C 9314, C07C14942, C08G 7310
Patent
active
045768579
ABSTRACT:
Melt-fusible polyimides based on pyromellitic dianhydride and at least one defined aromatic diamine are useful in making low-void composites and thermoplastic tapes, which can be fabricated into articles such as, for example, aircraft and autobody panels, printed circuit boards, etc. Some of these polyimides are melt-processible and can be fabricated by conventional procedures such as extrusion and injection molding.
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Sazanov et al, Visokomolekulyarnie Soedineniya, (B) 20, 820-824 (1978), No. 11.
Sachindrapal, et al, Makromol. Chem., Rapid Commun., 1, 667-670 (1980).
Gannett Thomas P.
Gibbs Hugh H.
Cannon James C.
E. I. Du Pont de Nemours and Company
Steyermark P. R.
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