Imide-crosslinked ethylenic polymer resin foams

C - Chemistry – Metallurgy – 08 – J

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C08J 9/04 (2006.01) C08G 73/12 (2006.01) C08J 9/06 (2006.01) C08L 35/00 (2006.01)

Patent

CA 1111997

Abstract of the Disclosure Resin foam products which are infusible and insoluble in usual solvents and resist ignition and burning in air are prepared from unsaturated imides such as 4,4'-methylenedianiline-bis-maleimide, unsaturated amic acids such as bis-maleamic acid and mixtures of unsaturated anhydrides such as maleic anhydride and poly(primary amines). The resin foams are made by heating to resin- -forming-foaming temperature a reaction mixture containing such starting material, surfactant and blowing agent.

311812

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