摘要:
PROBLEM TO BE SOLVED: To provide formulations that are not brittle while retaining its high modulus and excellent resistance to thermal degradation.SOLUTION: Imide-extended maleimide compounds are readily prepared by the condensation of appropriate anhydrides with appropriate diamines to give amine terminated compounds. These compounds are then condensed with excess maleic anhydride to yield imide-extended maleimide compounds. The present invention provides a maleimide-functionalized thermoset composition without thermally labile linkages, thereby providing superior thermal stability when used as a toughener.
摘要:
PROBLEM TO BE SOLVED: To provide a curable composition which has an obtained cured body showing sufficient heat resistance and can be also molded so that no bubbles remain in the cured body, and a siloxane compound used in the preparation of the composition.SOLUTION: A siloxane compound is basket-formed polysiloxane having a specific substituent, wherein the specific substituent is an N-containing organosilicon group such as an azido group, or an organosilicon group having an alkyne group.
摘要:
PROBLEM TO BE SOLVED: To provide a bis-maleimide thermoset article that has improved brittleness resistance while thermal degradation resistance and elastic property are maintained.SOLUTION: Imide-extended maleimide compounds are readily prepared by the condensation of appropriate anhydrides with appropriate diamines to give amine-terminated compounds. The compounds are then condensed with excess maleic anhydride to yield imide-extended maleimide compounds. A remarkable improvement in the performance of maleimide thermoset articles can be achieved through the incorporation of extended mono-, bis- or polymaleimide compounds.