Accession Number : ADD007988
Title : Terminated Bis(3,4-Dicyanophenoxy) Alkanes.
Descriptive Note : Patent,
Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC
Personal Author(s) : Keller,Teddy M ; Griffith,James R
Report Date : 07 Oct 1980
Pagination or Media Count : 6
Abstract : The objective of the present invention is to provide a polyphthalocyannine resin which has an elastic modulus high enough to permit use of the resin in the fabrication of structural components of aircraft, helicopters, and automobiles which are exposed to severe and/or constant mechanical stresses and strains. A further object of the invention is to provide a class of bisorthodinitriles (terminated dicyanophenoxy alkanes) which are polymerizable to polyphthalocyanine resins. And another object of the present invention is to provide a method of synthesising these dicyanophenoxy alkanes inexpensively and in a high yield and purity. These and other objects are achieved by preparing a terminated dicyanophenoxy alkane from the corresponding diol and 4-nitrophthalonitriles and by heating the alkoxy-bridged bisorthodinitrile to form a resin having flexible bridging chains.
Descriptors : *Patents, *Heat resistant plastics, *Phthalocyanines, *Nitriles, Synthesis(Chemistry), Alkanes, Alkenes, Modulus of elasticity, Mechanical properties, Structural members, Aircraft, Automotive vehicles, Ethers, Polycyclic compounds, Inventions
Subject Categories : Plastics
Distribution Statement : APPROVED FOR PUBLIC RELEASE