Title:
METHOD FOR PRODUCING POLYMER
Document Type and Number:
WIPO Patent Application WO/2014/112411
Kind Code:
A1
Abstract:
A method for producing a polymer, which comprises carrying out a polymerization step of polymerizing at least a conjugated diene monomer in a hydrocarbon solvent using an organic lithium compound as a polymerization initiator to produce a polymer and, subsequent to the polymerization step, carrying out steps (1) to (4) as mentioned below sequentially: (1) a step of mixing an acid and 20 to 300 parts by mass of water with 100 parts by mass of a solution containing the polymer; (2) a step of reducing the amount of water to 10 parts by mass or less relative to 100 parts by mass of the solution containing the polymer; (3) a step of adding a carbon dioxide gas and/or a compound capable of decarbonation to the solution containing the polymer; and (4) a step of desolvating the solution containing the polymer until the concentration of the polymer becomes 95 mass% or more.
Inventors:
ARAKI YOSHIFUMI (JP)
SASAYA EIJI (JP)
SUZUKI TAKUYA (JP)
SASAYA EIJI (JP)
SUZUKI TAKUYA (JP)
Application Number:
PCT/JP2014/050122
Publication Date:
July 24, 2014
Filing Date:
January 08, 2014
Export Citation:
Assignee:
ASAHI KASEI CHEMICALS CORP (JP)
International Classes:
C08F6/06; C08F36/04; C08F297/04
Foreign References:
| JPS6454016A | 1989-03-01 | |||
| JPH09132609A | 1997-05-20 | |||
| JP2003040919A | 2003-02-13 | |||
| JPS6456712A | 1989-03-03 | |||
| JP2000095804A | 2000-04-04 | |||
| JPS5193990A | 1976-08-18 | |||
| JPS5186588A | 1976-07-29 | |||
| JPS63284203A | 1988-11-21 | |||
| JPH04175304A | 1992-06-23 | |||
| JPH09124728A | 1997-05-13 | |||
| JP2002060414A | 2002-02-26 | |||
| JPS63264602A | 1988-11-01 | |||
| JPS3619286B1 | 1961-10-13 | |||
| JPS4317979B | ||||
| JPS4632415B | ||||
| JPS4936957A | 1974-04-05 | |||
| JPS482423B | ||||
| JPS484106B | ||||
| JPS5628925B2 | 1981-07-04 | |||
| JPS59166518A | 1984-09-19 | |||
| JPS60186577A | 1985-09-24 | |||
| JPS428704B1 | 1967-04-20 | |||
| JPS436636B1 | 1968-03-12 | |||
| JPS634841B2 | 1988-02-01 | |||
| JPS635401B2 | 1988-02-03 | |||
| JPH0554805B2 | 1993-08-13 | |||
| JPS59133203A | 1984-07-31 | |||
| JPH0554845B2 | 1993-08-13 |
Other References:
See also references of EP 2947101A4
Attorney, Agent or Firm:
INABA, Yoshiyuki et al. (JP)
Yoshiyuki Inaba (JP)
Yoshiyuki Inaba (JP)
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