Process for the manufacture of polyaddition products...

Details Process for the manufacture of polyaddition products... Process for the manufacture of polyaddition products...

C - Chemistry, Metallurgy

08

G

402/216, 400/771

C08G 73/10 (2006.01) C07F 9/553 (2006.01) C08G 73/12 (2006.01)

Patent

CA 1044842

Abstract of the Disclosure According to the invention, polyaddition products containing imide groups are manufactured by reacting certain polyimides (preferably maleimides) with polyhydric alcohols in the presence of basic compounds. The preferred embodiment (E) relates to the use of catalysts as basic compounds. In particular, amines and alkali metal compounds can be used. A further embodiment (F) relates to the use of primary poly- amines as basic compounds. In the latter case, the polyamine participates in the polyaddition mechanism, that is to say the molecules are incorporated into the polyaddition products. In this latter case, catalysts can also be used additionally. The invention can be utilised particularly in the fields of surface protection, the electrical industry, lamina- ting processes, the manufacture of foamed plastics and the building industry.

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