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

400/2016, 402/21

C08G 65/40 (2006.01) C08G 73/10 (2006.01) C08G 73/12 (2006.01) C08G 75/02 (2006.01)

Patent

CA 1046191

A B S T R A C T of the Disclosure According to the invention, polyaddition products containing imide groups are manufactured by reacting certain polyimides (preferably maleimides) with polyhydric phenols in the presence of basic compounds. The preferred embodiment (A) relates to the use of catalysts as basic compounds. In particular, tertiary, secondary or mixed tertiary-secondary amines can be used. A further embodiment (B) relates to the use of primary polyamines as basic compounds. In the latter case, the polyamine participates in the polyaddition mechanism, that is to say the molecules are incorporated into the poly- addition 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, laminating processes and the manufacture of foamed plastics, and in the building industry.

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