Process and composition for providing reduced discoloration of p

Details Process and composition for providing reduced discoloration of p Process and composition for providing reduced discoloration of p

1987-08-31

1989-04-04

Robinson, Douglas W.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

C07C14390, C11D 128

Patent

active

048184365

ABSTRACT:
Aqueous pyrithiones and a process and composition for providing reduced discoloration of these pyrithiones using an alkali metal or alkaline earth metal salt of 1-hydroxyethane-1,1-diphosphonic acid.

REFERENCES:
patent: 2809971 (1957-10-01), Bernstein et al.
patent: 3159640 (1964-12-01), McClure et al.
patent: 3899293 (1975-08-01), Bush
patent: 4533736 (1985-08-01), Trotz et al.
patent: 4557896 (1985-12-01), Brocklebank et al.
Chem. Abst. 73:37188(a) (1970)-Jacques.
Technical Bulletin No. IC/SCS-323, "DEQUEST.RTM. 2001 Phosphonate; for Scale and Corrosion Control, Chelation, Dispersion", St. Louis, Mo., from Monsanto Industrial Chemicals Company, pp. 1-5.

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