Polyamide and functional fluid containing same

Compositions – Electrolytes for electrical devices

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252 475, 252 493, 252 515A, 72 42, 2604045, 525420, 528335, 528337, 528341, 528346, 528347, C10M 106, C10M 120, C10M 136, C08F 3600

Patent

active

043747418

ABSTRACT:
Polyoxyalkylene polyamide lubricants having a terminal carboxylic acid group and a terminal amine group in the same molecule and a degree of polymerization of from 2 to 10 and salts thereof are provided. Stable aqueous based compositions are prepared from the polyamide or its salt, that are useful metal working and hydraulic fluids.

REFERENCES:
patent: 3804763 (1974-04-01), Meinhardt
patent: 3992312 (1976-11-01), Genjida et al.
patent: 4107061 (1978-08-01), Sturwold et al.
patent: 4239635 (1980-12-01), Rieder
patent: 4273664 (1981-06-01), Brandolese

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