公开(公告)号：US4105637A

公开(公告)日：1978-08-08

申请号：US514146

申请日：1974-10-11

申请人： Michael Semanchik ,  David M. Braunstein

发明人： Michael Semanchik ,  David M. Braunstein

IPC分类号： B01J19/20 ,  B29C47/40 ,  C08F2/00 ,  C08G2/00 ,  C08G2/10

CPC分类号： B29C47/402 ,  B01J19/20 ,  B29C47/38 ,  C08G2/00 ,  B29C47/0009

摘要： A process for producing a polyacetal polymer. The process includes reacting a polyacetal forming polymerization mixture in a polymerization reaction zone, which zone includes an elongated casing substantially following the outer boundaries of at least a pair of shafts, each of the shafts provided with a plurality of intermeshing elliptical shaped plates having flattened edges at the major axis which mesh, wiping the surface of its mating plate. The polymerization mixture is polymerized to form a polyacetal product in the form of a finely divided solid.