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Metal phthalocyanine polymersMetal 4, 4', 4", 4"'=tetracarboxylic phthalocyanines (MPTC) are prepared by reaction of trimellitic anhydride, a salt or hydroxide of the desired metal (or the metal in powdered form), urea and a catalyst. A purer form of MPTC is prepared than heretofore. These tetracarboxylic acids are then polymerized by heat to sheet polymers which have superior heat and oxidation resistance. The metal is preferably a divalent metal having an atomic radius close to 1.35A.
Document ID
19840019815
Acquisition Source
Legacy CDMS
Document Type
Other - Patent
Authors
Achar, B. N. (NAS-NRC Washington, D.C., United States)
Fohlen, G. M. (NASA Ames Research Center Moffett Field, CA, United States)
Parker, J. A. (NASA Ames Research Center Moffett Field, CA, United States)
Date Acquired
September 4, 2013
Publication Date
May 22, 1984
Subject Category
Nonmetallic Materials
Report/Patent Number
Patent Number: NASA-CASE-ARC-11405-1
Patent Number: US-PATENT-4,450,268
Patent Application Number: US-PATENT-APPL-SN-415880
Accession Number
84N27884
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Patent
NASA-CASE-ARC-11405-1|US-PATENT-4,450,268
Patent Application
US-PATENT-APPL-SN-415880

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