Organic compounds -- part of the class 532-570 series – Organic compounds – Amino nitrogen containing
Patent
1989-10-02
1991-12-10
Richter, Johann
Organic compounds -- part of the class 532-570 series
Organic compounds
Amino nitrogen containing
549 13, 549 22, 549 74, 549357, 549496, C07C22522, C07D33904, C07D30702
Patent
active
050720465
ABSTRACT:
This invention relates to a process for producing bis-[aminophenyl ketones] and the resulting compositions which are suitable for the preparation of engineering polymers, e.g., polyimides, polyurethanes and a host of other resinous materials. The bis-[aminophenyl ketones] are formed by reacting 2 moles of a nitrophenyl acid halide with an aromatic bridging composition having at least two hydrogen atoms of sufficient reactivity to undergo acylation reactions whereby nitrophenyl ketone groups are attached to the aromatic bridging group. The resulting bis-[nitrophenyl ketones] then are converted to the amine by hydrogenation or by double nucleophilic displacement with an aminophenol.
The invention also relates to polyimides and polyamides prepared from such bis-[aminophenyl ketones].
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Hergenrother, P. M., Wakelyn, N. T., and Havens, S. J. "Polyamides Containing Carbonyl and Ether Connecting Groups" Journal of Polymer Science: Part A Polymer Chemistry, vol. 25, 1093-1103 (1987).
Burogyne, Jr. William F.
Conner Mark D.
Ford Michael E.
Johnson Thomas A.
Air Products and Chemicals Inc.
Brewer Russell L.
Marsh William F.
Richter Johann
Simmons James C.
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