Process for preparing copper pyrithione

Details Process for preparing copper pyrithione Process for preparing copper pyrithione

1994-02-28

1996-07-30

Lovering, Richard D.

Compositions

Inorganic luminescent compositions

Tungsten containing

252311, 252314, 2523635, 514188, 514937, 546 2, 546 6, A01N 502, B01J 1300, C07F 108

Patent

active

055408605

ABSTRACT:
The present invention relates to a process for producing a gel-free dispersion or solution of copper pyrithione employing at least one surfactant. Also claimed is the dispersion or solution itself, as well as a solid particulate copper pyrithione composition comprising copper pyrithione particles having a particle shape selected from the group consisting of rods, spheres, needles, platelets and combinations thereof, and optionally containing at least a trace amount of a surfactant on the outer surface of at least a portion of said particles.

REFERENCES:
patent: 2809971 (1957-10-01), Bernstein et al.
patent: 3785985 (1974-01-01), Grand
patent: 4323683 (1982-04-01), Bolich, Jr. et al.
patent: 4345080 (1982-08-01), Bolich, Jr.
patent: 4835149 (1989-05-01), Burke et al.
patent: 5057153 (1991-10-01), Ruggiero
patent: 5185033 (1993-02-01), Hani et al.
patent: 5238490 (1993-08-01), Farmer, Jr. et al.
patent: 5246489 (1993-09-01), Farmer, Jr. et al.

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