Organic compounds -- part of the class 532-570 series – Organic compounds – Amino nitrogen containing
Patent
1983-05-27
1986-05-13
Waltz, Thomas A.
Organic compounds -- part of the class 532-570 series
Organic compounds
Amino nitrogen containing
423302, 564 12, 544232, 544243, 544337, 546 21, 546246, 546332, 548412, 549 6, 549216, C07F 922, C07F 944
Patent
active
045888388
ABSTRACT:
The invention is directed to the electrodeposition of a coating of a phosphorylated amide on a metal such as aluminum and the formation of a chemical bond between the metal and the coating, such amide being in the form of (a) an organic polymer consisting of a poly (phosphinohydrazide), a poly (phosphinoguanide) or a poly (phosphinoureide), including homopolymers and copolymers thereof, and their thio analogs or (b) a 2:1 molar adduct of a nitrogen=containing compound such as hydrazine, guanidine or urea or its thio analog, and an organic phosphite or phosphonate. In the method of electrolytically depositing such coating on the metal substrate, e.g., aluminum, the substrate is employed as the anode in a non-aqueous or aqueous electrolyte containing a phosphorylated amide of the type noted above, e.g., poly (phosphinohydrazide), and electrodepositing a coating on the metal substrate, the organic coating formed being chemically bonded to the substrate, thereby enhancing adhesive bonding to the metal substrate, such coating being strongly bonded to the substrate and being corrosion resistant.
REFERENCES:
patent: 2642413 (1953-06-01), Coover, Jr.
patent: 4092108 (1978-05-01), Volko et al.
Tesoro et al., CA 84:123257f (1976).
Zubkova et al., CA 95:133027X (1982).
Grapov et al., CA 83:131692p (1975).
Geldin Max
McDonnell Douglas Corporation
Waltz Thomas A.
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