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Perfluoro (Imidoylamidine) diamidinesPerfluoroether triazine elastomers having improved properties are prepared from oligomeric imidoylamidines that were in turn, prepared by the process of: (1) reacting a perfluorodinitrile with liquid ammonia to yield a perfluorodiamidine, (2) isolating the perfluorodiamidine, (3) reacting the isolated diamidine with a perfluorodinitrile to yield a perfluoro(imidoylamidine) dinitrile, and then repeating the steps to sequentially grow an oligomer of desired molecular size. The isolated amidine and nitrile intermediates are also disclosed. The elastomers can be fashioned into seals, gaskets, and sealing components and the like.
Document ID
19860012111
Acquisition Source
Legacy CDMS
Document Type
Other - Patent
Authors
Rosser, R. W. (NASA Ames Research Center Moffett Field, CA, United States)
Chen, T. S. (San Jose State Univ. Calif., United States)
Cheng, C. H. (San Jose State Univ. Calif., United States)
Date Acquired
August 12, 2013
Publication Date
January 28, 1986
Subject Category
Chemistry And Materials (General)
Report/Patent Number
Patent Number: US-PATENT-4,567,301
Patent Number: NASA-CASE-ARC-11402-3
Patent Application Number: US-PATENT-APPL-SN-741405
Accession Number
86N21582
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Patent
US-PATENT-4,567,301|NASA-CASE-ARC-11402-3
Patent Application
US-PATENT-APPL-SN-741405

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