Process for the preparation of bleaching granules

Details Process for the preparation of bleaching granules Process for the preparation of bleaching granules

1989-11-15

1991-09-17

Lieberman, Paul

Compositions

Electrolytes for electrical devices

252 94, 252 99, 252173, 25218625, 25218626, C11D 3393, C11D 754

Patent

active

050492985

ABSTRACT:
The invention relates to a process for the preparation of bleaching granules containing a solid, water-insoluble peroxy acid and a hydratable inorganic material, in which process the constituents to be used are mixed to form a powder at low temperature and granules are formed from the powder as the temperature is increased to at least the hydration temperature of the hydratable inorganic material. The invention also relates to bleaching compositions and detergent compositions comprised of such bleaching granules.

REFERENCES:
patent: 2335856 (1943-12-01), Hooft
patent: 3494787 (1970-02-01), Lund et al.
patent: 3770816 (1973-11-01), Nielsen
patent: 4091544 (1978-05-01), Hutchins
patent: 4094808 (1978-06-01), Stewart et al.
patent: 4170453 (1979-10-01), Kitko
patent: 4225451 (1980-09-01), McCrudden
patent: 4634551 (1986-09-01), Burns et al.
patent: 4681592 (1987-04-01), Hardy et al.
patent: 4681695 (1987-07-01), Divo
patent: 4818425 (1989-04-01), Meijer et al.
patent: 4917811 (1990-04-01), Foster et al.
patent: 4919836 (1990-04-01), Meijer et al.
Reinhardt & Gethoffer, "TAED and New Peroxycarboxylic Acids as Highly Efficient Bleach Systems", presented at the 80th AOCS meeting in Cincinnati in May, 1989.

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