Title:
精製されたエラストマーの製造方法
Document Type and Number:
Japanese Patent JP4755406
Kind Code:
B2
Abstract:
Ultrafiltration with a retentate flow rate of more than 1 m/second is used as a method for reducing the impurity content by up to 99 wt% in elastomers made by emulsion polymerisation. A method for the production of purified elastomers (I) made by emulsion polymerisation, in which the impurity content (II) is reduced by up to 99 wt%, involves (a) ultrafiltration of a solution of the elastomer in an organic solvent to give a permeate containing (II) and a retentate containing purified (I) and (b) using a retentate flow rate of more than 1 m/second during ultrafiltration. Independent claims are also included for (1) purified elastomers (I) obtained by this method (2) products obtained by processing (I).
Inventors:
Dirk Ahaten
Rafael Walditz
Gregor Dudotziac
Franz-Josef Meathmann
Steffen Pask
Jolt shentivany
Rafael Walditz
Gregor Dudotziac
Franz-Josef Meathmann
Steffen Pask
Jolt shentivany
Application Number:
JP2004300450A
Publication Date:
August 24, 2011
Filing Date:
October 14, 2004
Export Citation:
Assignee:
Lanxess Deutschland GmbH
International Classes:
C08F6/16; C08C2/02; C08C2/04; C08C19/02; C08F6/14; C08F236/12
Domestic Patent References:
| JP8100022A | ||||
| JP10204117A | ||||
| JP59166940A | ||||
| JP2000281716A |
Attorney, Agent or Firm:
Toshio Yano
Takuya Kuno
Einzel Felix-Reinhard
Takuya Kuno
Einzel Felix-Reinhard