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US 5,493,002 AGranted
Aryl ethynyl phthalic anhydrides and polymers with terminal or pendant amines prepared with aryl ethynyl phthalic anhydrides
AssigneesVirginia Tech Intellectual Properties, Inc., Virginia Polytechnic Institute and State University
InventorsJames E. McGrath, Gerald W. Meyer
Life of this patent
Estimating the term…
Abstract
Arylethynyl phthalic anhydrides have been synthesized and shown to have particular application as endcappers or pendant groups in high performance/high temperature thermosets which include amine terminal or amine pendant groups.
Claims5
A polymer compound having the formula:
- ##STR32## where A is an amine terminated polymer, and where R is covalently bonded at positions 3-6 of the phthalic anhydride and has the formula:
- --c.tbd.c--x
- where X is a substituted or unsubstituted aryl group.
The polymer compound of claim 4 wherein a is selected from the group consisting of polyimides, polyamides, and poly(arylene ethers).
A polymer compound comprising a polymeric chain including a monomeric unit, said monomeric unit having the formula:
- ##STR33## where B is a monomer including an amino substituted group , and where R is covalently bonded at positions 3-6 of the phthalic anhydride and has the formula:
- --c.tbd.c--x
- where X is a substituted or substituted aryl group.
Dependencies are inferred from the claim text.