Metallic soap fine particles, process for producing same and use

Details Metallic soap fine particles, process for producing same and use Metallic soap fine particles, process for producing same and use

1998-09-04

2000-12-12

Carr, Deborah D.

Organic compounds -- part of the class 532-570 series

Organic compounds

Fatty compounds having an acid moiety which contains the...

554153, 554 71, 430110, C07C 5100

Patent

active

06160142&

ABSTRACT:
There are disclosed metallic soap fine particles which have an average particle size of 4 .mu.m or smaller and have a content of particles having particle sizes of 10 .mu.m or larger of at most 4% by weight based on the whole metallic soap fine particles; a process for producing the metallic soap fine particles, comprising mixing (a) an aqueous solution containing 0.001 to 20% by weight of an alkali metal salt or an ammonium salt of a fatty acid having 4 to 30 carbon atoms with (b) an aqueous solution or dispersion containing 0.001 to 20% by weight of an inorganic metal salt at a specific temperature to form a slurry of the metallic soap, and drying the resultant slurry at a specific temperature. The metallic soap, which has remarkably fine particles and narrow particle size distribution, is well suited for use e.g. as a toner additive in an electrophotographic copying machine by virtue of the improvements in blocking resistance, fluidity and eliminability of the toner, and also as a cleaning aid in the same owing to the improvement in cleaning performance for residual toner without impairing the surface of a picture image support.

REFERENCES:
patent: 2945051 (1960-07-01), Davis
patent: 3111381 (1963-11-01), Panzer et al.
Chemical Abstracts, vol. 103 (1985), 16-12, No. 24, p. 65 (103:197323g).
Abstract of JP 60-67442 (1985)--WPI/Derwent, Section Ch, Week 8524.

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