公开(公告)号：EP0712423A1

公开(公告)日：1996-05-22

申请号：EP95919032.0

申请日：1995-05-05

申请人： ARISTECH CHEMICAL CORPORARION

发明人： HOFFMAN, Ray, D. ,  RODE, Daniel, J. ,  GODFREY, John, J. ,  THOMPSON, James, E. ,  KATHAWALLA, Imtiaz, A.

IPC分类号： C08J3 ,  B29B17 ,  C08J11 ,  B29K33

CPC分类号： C08J11/06 ,  B29B17/0036 ,  B29C47/385 ,  B29C47/662 ,  B29C47/766 ,  B29K2033/00 ,  C08J2333/06 ,  Y02W30/62 ,  Y02W30/701

摘要： A process for reclaiming crosslinked acrylic scrap. The process comprising comminuting a predominantly (or completely) crosslinked acrylic or methacrylate polymer with an optionally added co-blend of uncrosslinked thermoplastic polymer. This comminuting process taking place in a screw-type extruder wherein high levels of shear are imparted to the polymer(s). These products can be processed with residual monomer content below 0.5 wt.% and without emission of said monomer. These products can be processed into pellet form or extruded into a thermoformable sheet having a smooth matte finish and improved impact resistance.