Polymer from substituted, unsaturated, bicyclic imide
AssigneeCiba-Geigy Corporation
InventorAlfred Renner
Life of this patent
Estimating the term…
Abstract
Imides of the formula I ##STR1## in which E is allyl or methallyl, R is hydrogen, alkyl, alkenyl, cycloalkyl, aryl, benzyl, alkylene or arylene, and ni is 1 or 2, are intermediates for the preparation of crosslinked polymers having excellent physical properties. The polymers can be used, in particular, for the preparation of glass fibre-reinforced and carbon fibre-reinforced plastics and heat-resistant composite materials, and as electrical insulation materials and whirl-sintered powder paints.
Claims15
A polymer obtained by heating an imide of formula I ##STR14## in which E is allyl or methallyl and n is 1 or 2 and, when n is 1, R is hydrogen, alkyl having 1-12 C atoms, alkenyl having 3-6 C atoms, cycloalkyl having 5-8 C atoms, aryl having 6-10 C atoms or benzyl, or when n is 2, R is --C.sub.m H.sub.2m -- in which m is 2-20, arylene having 6-10 C atoms or a group of the formula II ##STR15## in which T is methylene, isopropylidene, CO, O, S or SO.sub.2, at a temperature between 180.degree. and 300.degree. C. for 6 to 60 hours.
Dependencies are inferred from the claim text.