Compositions – Compositions containing a single chemical reactant or plural... – Inorganic reactant other than sulfur containing
Patent
1996-03-01
1999-03-30
Henderson, Christopher
Compositions
Compositions containing a single chemical reactant or plural...
Inorganic reactant other than sulfur containing
25218313, 526233, C08F 218
Patent
active
058892850
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: 2594913 (1952-04-01), Grim
patent: 3368970 (1968-02-01), Grunze
Kato Yukio
Murata Mitsushi
Takahashi Tsunenori
Henderson Christopher
Mitsubishi Chemical BASF Company Limited
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