公开(公告)号：US3808166A

公开(公告)日：1974-04-30

申请号：US13482171

申请日：1971-04-16

Applicant: SNAM PROGETTI

Inventor： BRUZZONE M ,  CORRADINI G ,  FUGA V

IPC: B01J20/22 ,  C08J3/07 ,  B01D15/08 ,  C08D5/00

CPC classification number: B01J20/22 ,  C08J3/07

Abstract: A PROCESS IS DISCLOSED FOR PREPARING A POLYMERIC LATEX FROM AN AQUEOUS EMULSION OF A SOLUTION OF A POLYMER WHEREIN THE EMULSION IS BROUGHT INTO CONTACT WITH A SOLID SUCH AS CURED AND CROSS-LINK 1,4,-CIS-POLYBUTADIENE IN A FORM WHICH PROVIDES A HIGH SURFACE/VOLUME RATIO SO THAT THE SOLVENT FOR THE POLYMER IS ADSORBED BY THE SOLID WHICH IS THEN REMOVED FROM THE RESULTING LATEX. THE PROCESS IS CARRIED OUT AT A TEMPERATURE WHICH IS BELOW THE BOILING POINT OF THE SOLVENT FOR THE POLYMER AND THE SOLID USED AS AN ADSORBENT IS COMPATIBLE WITH, BUT INSOLUBLE IN, THE SOLVENT FOR THE POLYMER AND IS INCOMPATIBLE WITH THAT POLYMER.