公开(公告)号：EP0729447A4

公开(公告)日：1998-06-10

申请号：EP95932375

申请日：1995-09-05

申请人： ARISTECH CHEMICAL CORPORARION

发明人： RUBINO MARK R ,  SALEK JEFFREY S

IPC分类号： C07D317/72 ,  B01J27/10 ,  B01J31/02 ,  C07C37/11 ,  C07C37/14 ,  C07C39/17 ,  C07C319/14 ,  C07C323/61 ,  C07D319/08 ,  C07D327/04 ,  C07D327/06 ,  C07C37/00

CPC分类号： C07C37/115 ,  C07C37/14 ,  C07C37/20 ,  C07C319/14 ,  Y02P20/582 ,  C07C323/61 ,  C07C39/17

摘要： This invention provides a unique method of producing 1,1-bis-(4-hydroxyphenyl)-3,3,5-trimethylcyclohexane ('BPTMC'). The disclosed method manufactures BPTMC from ketals and hemithioketals of 3,3,5-trimethylcyclohexanone ('TMC'). The reaction takes place in the presence of an acid catalyst, and optionally added co-catalysts. Additionally, applicants have disclosed a particularly useful method of manufacturing BPTMC from TMC and alcohol and/or thiol starting materials. These starting materials react to form the TMC ketal or thioketal materials. This method is particularly useful in that it allows recovery and recycling of the alcohol and/or thiol.

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.

公开(公告)号：EP0712423A4

公开(公告)日：1997-11-26

申请号：EP95919032

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： C08J3/12 ,  B29B17/00 ,  B29B17/04 ,  B29K33/04 ,  C08J11/06 ,  B29B7/48 ,  B29C47/40 ,  B29C47/76

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.

摘要翻译： 回收交联丙烯酸废料的方法。 该方法包括用主要（或完全）交联的丙烯酸或甲基丙烯酸酯聚合物与任选加入的未交联的热塑性聚合物共混物粉碎。 这种粉碎过程发生在螺杆式挤出机中，其中高分子剪切被赋予聚合物。 这些产品可以以低于0.5重量％的残留单体含量进行处理，而不会排放所述单体。 这些产品可以加工成颗粒形式或挤压成具有光滑磨光和耐冲击性的可热成型片材。

公开(公告)号：EP0729447A1

公开(公告)日：1996-09-04

申请号：EP95932375.0

申请日：1995-09-05

申请人： ARISTECH CHEMICAL CORPORARION

发明人： RUBINO, Mark, R. ,  SALEK, Jeffrey, S.

IPC分类号： C07D317 ,  B01J27 ,  B01J31 ,  C07C37 ,  C07C39 ,  C07C319 ,  C07D319 ,  C07D327 ,  C07C323

CPC分类号： C07C37/115 ,  C07C37/14 ,  C07C37/20 ,  C07C319/14 ,  Y02P20/582 ,  C07C323/61 ,  C07C39/17

摘要： This invention provides a unique method of producing 1,1-bis-(4-hydroxyphenyl)-3,3,5-trimethylcyclohexane ('BPTMC'). The disclosed method manufactures BPTMC from ketals and hemithioketals of 3,3,5-trimethylcyclohexanone ('TMC'). The reaction takes place in the presence of an acid catalyst, and optionally added co-catalysts. Additionally, applicants have disclosed a particularly useful method of manufacturing BPTMC from TMC and alcohol and/or thiol starting materials. These starting materials react to form the TMC ketal or thioketal materials. This method is particularly useful in that it allows recovery and recycling of the alcohol and/or thiol.