Accession Number : ADD016375
Title : Phosphazene-Containing Amine as Curing Agent for Phthalonitrile-Base Polymer.
Descriptive Note : Patent, Filed 19 Feb 93, patented 19 Apr 94,
Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC
Personal Author(s) : Keller, Teddy M
Report Date : 19 Apr 1994
Pagination or Media Count : 6
Abstract : Phosphazene-containing amines having at least one amine or substituted amine moiety reactive with nitrile groups of the phthalonitrile monomers or oligomeric resins are useful curing agents for phthalonitriles. Typically, the phosphazene-containing amines are useful as curing agents in the present invention have the formula: wherein each of X(1-6) is a hydrogen, an unsubstituted amine group, or an amine group substituted with C(1)-C(12) alkyl groups or aromatic groups, at least one of X(1-6) includes an amine group, and each of R'(1-6) is an alkyl, aromatic, or alkyl-substituted aromatic moiety, or a linear polymer of the phosphazene-based amine monomer. The curing agents enhance the speed of cure and also add flame retardancy to the cured polymers.
Descriptors : *AMINES, *CURING AGENTS, *PHOSPHAZENE, *POLYMERS, *PATENTS, HYDROGEN, MONOMERS, NITRILES, PLASTICS, VELOCITY, OLIGOMERS, ALKYL RADICALS, AROMATIC COMPOUNDS, FLAME INHIBITORS
Subject Categories : Organic Chemistry
Distribution Statement : APPROVED FOR PUBLIC RELEASE