Curable mixtures based on maleimides and...

Details Curable mixtures based on maleimides and... Curable mixtures based on maleimides and...

C - Chemistry, Metallurgy

07

C

402/219, 402/297

C07C 39/21 (2006.01) C08F 16/02 (2006.01) C08F 122/40 (2006.01) C08F 222/40 (2006.01) C08G 73/12 (2006.01)

Patent

CA 1138476

Abstract Curable mixtures of a) maleimides of the general formula I Image (I) wherein R is an n-valent aliphatic or aromatic radical, nd n is the number 1, 2 or 3; and b) mono- or polyvalent phenols which contain in the molecule at least one 1-propenyl group in the ortho- or para-position with respect to the hydroxyl group, or isomeric mixtures of mono- or polyvalent phenols which are propenyl-substituted in the ortho- or para-position and mono- or polyvalent phenols which are allyl-substituted in the ortho- or para-position, the proportion of propenyl groups in the isomeric mixture havlng to be at least 5 equivalent-%, relative to the sum of the equivalents of propenyl and allyl groups The novel mixtures cure at elevated temperatures relatively rapidly, and produce moulded materials having valuable mechanical properties.

342671

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