Compositions – Preservative agents – Anti-corrosion
Patent
1987-11-10
1989-12-05
Lee, Mary C.
Compositions
Preservative agents
Anti-corrosion
252356, 252546, 562448, 562564, 26050111, C07C 5022, C07C10172
Patent
active
048851124
ABSTRACT:
A surface active agent comprising a specific type of secondary amidoamino acid or ammonium ion or triethanolammonium salt thereof, ##STR1## as a major component, and not more than 0.2 mole of an inorganic salt per 100 gm of said secondary amidoamino acid or 100 gm of a salt thereof as converted to the acid type secondary amidoamino acid. The surface active agent can be prepared by subjecting the alkali metal salt of secondary amidoamino acid, usually containing a great amount of impurities such as sodium chloride, to electrodialysis. It has excellent compatibility with various additives such as water-soluble polymer due to its low ionic strength and yet exhibits a good low-temperature stability when made into an aqueous solution owing to its low Krafft point.
REFERENCES:
patent: 2781384 (1957-02-01), Mannheimer
patent: 2921085 (1960-01-01), Schramm
patent: 3055836 (1962-09-01), Masci et al.
Translation of 62-063555.
Translation of 61-067783.
Patent Abstracts of Japan, (Feb. 26, 1986), vol. 10, No. 49, "Production of Amphoteric Surfactant having Low sodium Chloride Content"; Sekken et al.
Hirota Hajime
Kubo Makoto
Okabe Kazuhiko
Sotoya Kohshiro
Tanigaki Masanobu
Kao Corporation
Lee Mary C.
Scalzo C. K.
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