Title:
連続バルク重合によるスチレン/アクリル系水溶性樹脂の製造方法
Document Type and Number:
Japanese Patent JP3570624
Kind Code:
B2
Abstract:
A bulk polymerization process for preparing water-soluble styrene/acrylic resins, in which styrene and acryl monomers are polymerized in a solvent mixture of dipropylene glycol methyl ether and water in a temperature-controllable reactor equipped externally with an oil jacket containing a cooling coil therein and the resulting polymers are deprived of volatile contents in a falling-strand type devolatilizer. The water-soluble styrene/acrylic resins take industrial advantages over conventional resins because the resins, if polymerized at lower temperatures, show lower molecular weights, narrower molecular weight distributions, higher acid values and lower volatile content.
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Inventors:
Jin, Yong-Sob
Ha, Hyun-ze
Oh, Sukhyun
Won, Woo Young
Ha, Hyun-ze
Oh, Sukhyun
Won, Woo Young
Application Number:
JP2000589575A
Publication Date:
September 29, 2004
Filing Date:
March 04, 1999
Export Citation:
Assignee:
Hanwha Chemical Corporation
International Classes:
C08F2/01; C08F2/02; C08F2/10; C08F2/44; C08F6/10; C08F212/08; C08F257/02; (IPC1-7): C08F212/08; C08F2/01; C08F2/02; C08F6/10
Domestic Patent References:
| JP2001707A | ||||
| JP2033041A | ||||
| JP4255705A | ||||
| JP59006207A |
Attorney, Agent or Firm:
Minoru Hotta
Yoshiaki Takemasa
Yoshiaki Takemasa