Title:
METHOD FOR MANUFACTURING MODIFIED POLYMER AND HYDROGEN ADDUCT THEREOF
Document Type and Number:
WIPO Patent Application WO/2013/084671
Kind Code:
A1
Abstract:
Provided is a method for manufacturing a modified polymer or hydrogen adduct thereof, the method allowing components that inhibit polymerization to be removed and the remaining part to be reused as a polymerization solvent. The method involves manufacturing a modified polymer having at least one functional group in a main chain or a side chain, obtained by polymerizing with a conjugate diene and/or aromatic vinyl compound as the monomer and an active organic metal as the polymerization initiator, in the presence of a hydrocarbon-based solvent that is used as the polymerization solvent; or manufacturing a hydrogen adduct of the modified polymer. The method comprises, in sequence: (a) a solvent removal step for separating the reaction solution where the modified polymer or hydrogen adduct is dissolved in the polymerization solvent into a solvent fraction containing the hydrocarbon-based solvent and a solid fraction containing the modified polymer, or the like; (b) a low-boiling fraction separating step for distilling the solvent fraction and separating the hydrocarbon-based solvent from the low-boiling fraction containing a silanol compound; and (c) a silanol removing step for removing at least a portion of the silanol compound from the low-boiling fraction by liquid-liquid extraction using the low-boiling fraction and an extraction solvent. Furthermore, at least a portion of the extract solution where the silanol compound has been removed by liquid-liquid extraction is reused as a polymerization solvent.
Inventors:
UEBA KENTAROU (JP)
OOTA SADATAKA (JP)
SAKURA YOSHIROU (JP)
OOTA SADATAKA (JP)
SAKURA YOSHIROU (JP)
Application Number:
PCT/JP2012/079306
Publication Date:
June 13, 2013
Filing Date:
November 12, 2012
Export Citation:
Assignee:
JSR CORP (JP)
International Classes:
C08F6/06; C08F8/00; C08F12/04; C08F36/04
Domestic Patent References:
| WO2010056694A1 | 2010-05-20 | |||
| WO2010056694A1 | 2010-05-20 |
Foreign References:
| JPH09255716A | 1997-09-30 | |||
| JP2008260854A | 2008-10-30 | |||
| JP2003171418A | 2003-06-20 | |||
| JP2009227858A | 2009-10-08 | |||
| JPH09255716A | 1997-09-30 |
Other References:
See also references of EP 2789633A4
Attorney, Agent or Firm:
KOJIMA SEIJI (JP)
Seiji Kojima (JP)
Seiji Kojima (JP)
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Claims:
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