Title:
REACTION APPARATUS, MANUFACTURING METHOD FOR VINYL POLYMER, AND METHOD FOR PRODUCING VINYL POLYMER
Document Type and Number:
WIPO Patent Application WO/2022/265057
Kind Code:
A1
Abstract:
This batch-type reaction apparatus used for producing a polymer by suspension polymerization using a dispersion auxiliary agent comprises: a reactor having a cylindrical straight body part; a plurality of first cooling pipes disposed inside the reactor and used for circulating a refrigerant; and a stirring shaft disposed inside the reactor, having a stirring blade attached thereto, and configured so as to be rotatable. A representative point of each of the plurality of first cooling pipes in a plane substantially perpendicular to the extension direction of the straight body part is substantially positioned on the circumference of any one of a plurality of virtual circles disposed substantially concentrically in the substantially perpendicular plane. The number Nc [number] of the plurality of virtual circles and the ratio CZ [mg (dispersion auxiliary agent)/kg (monomer)] of the mass of the dispersion auxiliary agent to the mass of one or more types of monomers which are starting materials for the polymer, satisfy a specific relationship.
Inventors:
SAITO HIROAKI (JP)
GOTO EISUKE (JP)
HAMAGUCHI YASUNORI (JP)
GOTO EISUKE (JP)
HAMAGUCHI YASUNORI (JP)
Application Number:
PCT/JP2022/024034
Publication Date:
December 22, 2022
Filing Date:
June 15, 2022
Export Citation:
Assignee:
SHINETSU CHEMICAL CO (JP)
International Classes:
B01J14/00; B01F27/112; B01F27/90; B01F35/93; B01J19/18; C08F2/01; C08F2/20; C08F14/06
Foreign References:
| JPH07233202A | 1995-09-05 | |||
| JPH07233206A | 1995-09-05 | |||
| JP2005002194A | 2005-01-06 | |||
| JPH07233202B1 | ||||
| JPH07233206B1 | ||||
| JP2013151621A | 2013-08-08 |
Attorney, Agent or Firm:
RYUKA IP LAW FIRM (JP)
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