Solid material comminution or disintegration – Processes – With application of fluid or lubricant material
Patent
1997-05-02
2000-12-05
Henderson, Christopher
Solid material comminution or disintegration
Processes
With application of fluid or lubricant material
B02C 1700
Patent
active
061555053
ABSTRACT:
A suspending agent-containing slurry is disclosed which comprises a dispersant and a particulate suspending agent having a particle size distribution in which the particle diameter at weight-cumulative 95%, from the minimum particle size, is 1 .mu.m or smaller. A method for efficiently producing the suspending agent-containing slurry is also disclosed. A process for suspension polymerization by use of the suspending agent-containing slurry is further disclosed. The slurry not only has such an excellent suspending ability in suspension polymerization that it enables the production of vinyl polymer beads having a narrow bead size distribution, but also is capable of retaining this ability over long and of exhibiting the same ability even when it has a high concentration. The suspension polymerization process enables vinyl polymer beads having a narrow bead size distribution to be produced efficiently due to the use of the slurry.
REFERENCES:
patent: 5320284 (1994-06-01), Nishida
patent: 5651505 (1997-07-01), Lidstrom
patent: 5657931 (1997-08-01), Nair
Kato Yukio
Murata Mitsushi
Takahashi Tsunenori
Henderson Christopher
Mitsubishi Chemical BASF Company Limited
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