Title:
METHOD AND APPARATUS FOR PRODUCING POLYMER PARTICLES
Document Type and Number:
WIPO Patent Application WO/2010/044340
Kind Code:
A1
Abstract:
Disclosed is a method for producing polymer particles, which is characterized in that a polymer solution obtained by dissolving a polymer in a good solvent is continuously or intermittently mixed with a polymer nonsolvent, which does not dissolve the polymer but has compatibility with the good solvent, and the resulting liquid mixture of the polymer solution and the polymer nonsolvent is caused to flow down within a generally vertically arranged tubular body, thereby completing precipitation of polymer particles. Also disclosed is an apparatus for producing polymer particles. The method enables production of polymer particles which have a relatively narrow particle size distribution even when kept in the form of a dispersion.
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Inventors:
ARIDOMI, Tadatoshi (8-1, Goi-Minamikaigan, Ichihara-sh, Chiba 45, 〒2900045, JP)
有冨 忠利 (〒45 千葉県市原市五井南海岸８番の１ 宇部興産株式会社内 Chiba, 〒2900045, JP)
ASANO, Yukihiko (8-1, Goi-Minamikaigan, Ichihara-sh, Chiba 45, 〒2900045, JP)
浅野 之彦 (〒45 千葉県市原市五井南海岸８番の１ 宇部興産株式会社内 Chiba, 〒2900045, JP)
TAKAHASHI, Junya (8-1, Goi-Minamikaigan, Ichihara-sh, Chiba 45, 〒2900045, JP)
有冨 忠利 (〒45 千葉県市原市五井南海岸８番の１ 宇部興産株式会社内 Chiba, 〒2900045, JP)
ASANO, Yukihiko (8-1, Goi-Minamikaigan, Ichihara-sh, Chiba 45, 〒2900045, JP)
浅野 之彦 (〒45 千葉県市原市五井南海岸８番の１ 宇部興産株式会社内 Chiba, 〒2900045, JP)
TAKAHASHI, Junya (8-1, Goi-Minamikaigan, Ichihara-sh, Chiba 45, 〒2900045, JP)
Application Number:
JP2009/066755
Publication Date:
April 22, 2010
Filing Date:
September 28, 2009
Export Citation:
Assignee:
UBE INDUSTRIES, LTD. (1978-96, Ooaza Kogushi Ube-sh, Yamaguchi 33, 〒7558633, JP)
宇部興産株式会社 (〒33 山口県宇部市大字小串１９７８番地の９６ Yamaguchi, 〒7558633, JP)
ARIDOMI, Tadatoshi (8-1, Goi-Minamikaigan, Ichihara-sh, Chiba 45, 〒2900045, JP)
有冨 忠利 (〒45 千葉県市原市五井南海岸８番の１ 宇部興産株式会社内 Chiba, 〒2900045, JP)
ASANO, Yukihiko (8-1, Goi-Minamikaigan, Ichihara-sh, Chiba 45, 〒2900045, JP)
浅野 之彦 (〒45 千葉県市原市五井南海岸８番の１ 宇部興産株式会社内 Chiba, 〒2900045, JP)
宇部興産株式会社 (〒33 山口県宇部市大字小串１９７８番地の９６ Yamaguchi, 〒7558633, JP)
ARIDOMI, Tadatoshi (8-1, Goi-Minamikaigan, Ichihara-sh, Chiba 45, 〒2900045, JP)
有冨 忠利 (〒45 千葉県市原市五井南海岸８番の１ 宇部興産株式会社内 Chiba, 〒2900045, JP)
ASANO, Yukihiko (8-1, Goi-Minamikaigan, Ichihara-sh, Chiba 45, 〒2900045, JP)
浅野 之彦 (〒45 千葉県市原市五井南海岸８番の１ 宇部興産株式会社内 Chiba, 〒2900045, JP)
International Classes:
C08J3/14; B01J14/00
Attorney, Agent or Firm:
KATAOKA, Makoto et al. (OHTANI PATENT OFFICE, Bridgestone Toranomon Bldg. 6F. 25-2, Toranomon 3-chome, Minato-k, Tokyo 01, 〒1050001, JP)
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