We Claim:
1. An apparatus for preparing a polymer latex resin powder comprising a reactor for
coagulation of a polymer latex, in which the reactor comprises a hollow reaction tube
through which a latex passes, at least one barrel pin protruding from an inner wall of
the reaction tube to an inner side of the reaction tube, a rotating shaft extending along
a central axis in a longitudinal direction of the reaction tube, and one or more stirrers
protruding from an outer surface of the rotating shaft towards the inner wall of the
reaction tube, wherein the one or more stirrers comprise a non-continuous screw.
2. The apparatus according to claim 1, wherein the apparatus comprises at least one of a
dehydrator and a dryer.
3. The apparatus according to claim 1, wherein the number of the one or more stirrers is
1 to 20.
4. The apparatus according to claim 1, wherein the non-continuous screw comprises one
or more openings.
5. The apparatus according to claim 4, wherein a total area of the one or more openings
is in a range of 0.05 to 1 with respect to a total area of rotary wings.
6. The apparatus according to claim 1, wherein, in the non-continuous screw, an
inclination angle α of a rotary wing with respect to an axis perpendicular to the
rotating shaft is 0.1° to 10°.
7. The apparatus according to claim 1, wherein the reaction tube of the reactor
comprises at least one barrel pin extending from an outside of the reaction tube to an
inside of the reaction tube.
8. The apparatus according to claim 1, wherein the reactor comprises a polymer latex
introduction line, a coagulant introduction line, and a steam introduction line.
9. The apparatus according to claim 1, wherein the reactor is an integrated reactor for
coagulation and aging of the polymer latex.
10. A method of preparing a polymer latex resin powder by using the apparatus according
to any one of claims 1 to 9.
11. The method according to claim 10, wherein the polymer latex resin powder has a
moisture content of 25% or less.
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12. The method according to claim 10, wherein a residence time of polymer slurry in
coagulation and aging is 0.5 minutes to 30 minutes.
13. The method according to claim 10, wherein a polymer resin is a graft copolymer of
vinyl cyanide compound-conjugated diene-based compound-aromatic vinyl
compound.
14. A polymer latex resin powder prepared using the method according to claim 10.