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US 4,789,704 AGranted
Curable resin from bis maleimide and alkenyl phenyl hydroxy ether
AssigneeTechnochemie GmbH
InventorsHorst Stenzenberger, Peter Koenig
Life of this patent
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Abstract
Cured resins of high fracture toughness are prepared from N,N'-bisimides of formula I ##STR1## and alkenyl compounds of formula II D(G).sub.m II in which D is an m-valent group and G represents a phenyl ring having at least one alkenyl (e.g. allyl or 1-propenyl) substituent.
Claims12
Curable resin comprising a mixture of
- (a) at least one bisimide of the general formula I ##STR17## in which B represents a divalent radical containing a carbon-carbon double bond and A is a divalent radical containing at least two carbon atoms and
- (b) at least one alkenyl compound of formula IIg
- G[OCH.sub.2 CH(OH)CH.sub.2 O]E[OCH.sub.2 CH(OH)CH.sub.2 O]G (IIg)
- in which E is a m-phenylene group or a group of formula IIh ##STR18## and G represents a group of formula IIj or IIk ##STR19## or of formula IIm or IIn ##STR20##
1 more element
Dependencies are inferred from the claim text.