C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
C07D 403/14 (2006.01) C07D 209/48 (2006.01) C07D 209/76 (2006.01) C07D 401/14 (2006.01) C07D 405/14 (2006.01) C07D 409/14 (2006.01) C07D 417/14 (2006.01) C07D 487/04 (2006.01) C08G 73/10 (2006.01) D01F 11/14 (2006.01)
Patent
CA 2150567
The invention relates to a PMR type resin which comprises a mixture of; a) nadic acid of formula (Ia) or a derivative thereof; b) a diaminobisimide of formula (Ib); and c) an aromatic tetracarboxylic acid of formula (Ic) or a derivative thereof, the components (a), (b) and (c) being present in the approximate molar proportions of 2:n:n-1 respectively; and wherein n is chosen to provide a polyimide polymer of the desired size; Ar and Ar" may be the same of different and each represent an optionally substituted aryl, optionnaly substituted bridged or bonded di- or poly- aryl, or optionally substituted heteroaryl group; Ar' is an optionally substituted aryl or heteroaryl group which provides for good conjugation between the nitrogen containing groups; and X is an alkyl group or hydrogen and high temperature resistant matrix polymers for composites made therefrom.
Eibl Robert
Hodgkin Jonathan Howard
Commonwealth Scientific And Industrial Research Organisation
Kirby Eades Gale Baker
LandOfFree
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