Invention Application
US20160208056A1 DIVISION OF A POLYARYLENE ETHER SOLUTION 有权
聚亚烷基醚解决方案

  • Patent Title: DIVISION OF A POLYARYLENE ETHER SOLUTION
  • Patent Title (中): 聚亚烷基醚解决方案
  • Application No.: US14904491
    Application Date: 2014-07-16
  • Publication No.: US20160208056A1
    Publication Date: 2016-07-21
  • Inventor: Joerg ERBESGerhard LANGETobias KORTEKAMPCecile SCHNEIDER
  • Applicant: BASF SE
  • Applicant Address: DE Ludwigshafen
  • Assignee: BASF SE
  • Current Assignee: BASF SE
  • Current Assignee Address: DE Ludwigshafen
  • Priority: EP13176988.7 20130718
  • International Application: PCT/EP2014/065241 WO 20140716
  • Main IPC: C08J3/14
  • IPC: C08J3/14 C08G75/23
DIVISION OF A POLYARYLENE ETHER SOLUTION
Abstract:
Process for producing polyarylene ether beads from a polyarylene ether solution, comprising the steps of i) dividing the polyarylene ether solution into droplets, ii) transferring the droplets into a precipitation bath to form polyarylene ether beads in the precipitation bath which (A) comprises at least one aprotic solvent (component (1)) and at least one protic solvent (component (2)), (B) has a temperature of 0° C. to Tc, where the critical temperature Tc in [° C.] can be determined by the numerical equation Tc=(77−c)/0.58 in which c is the concentration of component (1) in the precipitation bath in [% by weight] and (C) has component (1) in concentrations of 5% by weight to cc, where the critical concentration cc in [% by weight] can be determined by the numerical equation cc=77−0.58*T in which T is the temperature in the precipitation bath in [° C.], where the percentages by weight are each based on the sum of the percentages by weight of component (1) and of component (2) in the precipitation bath.
Public/Granted literature
Information query
Patent Agency Ranking
0/0