C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 233/80 (2006.01) C08G 69/26 (2006.01) C08G 73/10 (2006.01) C08G 73/14 (2006.01)
Patent
CA 2059560
2059560 9101971 PCTABS00003 The invention comprises diamines having a 5-t-butyl-1,3-benzene dicarboxylic moiety linked on both sides to phenylene diamine by an amide bond (tBuIPA-diamines). By reacting these diamines with aromatic difunctional acid derivatives amorphous polymers having high glass transition temperatures (Tg) can be prepared. If aliphatic diacid derivatives are used, the resulting polymers have a lower Tg, but have the advantage of melt-processability. The t-BuIPA diamines can also be used in the preparation of polyimides, being reacted with tri- or tetra-carboxylic anhydrides or with imide group-containing acid derivatives.
Bouwmans Theodorus J.
de Jonge Cornelis R. H. I.
Hoentjen Gerrit
Akzo N.v.
Bouwmans Theodorus J.
de Jonge Cornelis R. H. I.
Hoentjen Gerrit
Swabey Ogilvy Renault
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