公开(公告)号：US4016350A

公开(公告)日：1977-04-05

申请号：US633736

申请日：1975-11-20

申请人： Edwin Studley Smith ,  Richard A. Marshall

发明人： Edwin Studley Smith ,  Richard A. Marshall

IPC分类号： C08F6/00

CPC分类号： C08F6/006 ,  C08K5/37 ,  C08K5/42

摘要： The invention relates to the reduction of the amount of vinyl chloride monomer in the free space surrounding polyvinyl chloride powder by incorporating in the powder a material which will react with vinyl chloride monomer and allowing it to react with and reduce the amount of vinyl chloride monomer present.

摘要翻译： 本发明涉及通过在粉末中掺入将与氯乙烯单体反应并使其与存在的氯乙烯单体反应并减少的材料，在聚氯乙烯粉末周围的自由空间中减少氯乙烯单体的量 。

公开(公告)号：US4042637A

公开(公告)日：1977-08-16

申请号：US677642

申请日：1976-04-15

申请人： Emmett Jean Glazer ,  Edwin Studley Smith

发明人： Emmett Jean Glazer ,  Edwin Studley Smith

IPC分类号： C07C17/38 ,  C07C21/00

CPC分类号： C07C17/38

摘要： The invention relates to a process for purifying vinyl chloride monomer by contacting it with zinc metal.

摘要翻译： 本发明涉及一种通过使其与锌金属接触来净化氯乙烯单体的方法。

公开(公告)号：US4031297A

公开(公告)日：1977-06-21

申请号：US391905

申请日：1973-08-27

申请人： Edwin Studley Smith

发明人： Edwin Studley Smith

IPC分类号： C08F2/00 ,  C08F2/02

CPC分类号： C08F2/00

摘要： A constant composition copolymer is automatically made by means of a self-regulating batch process by maintaining the polymerization system at a constant volume throughout the reaction by adding polymerizable monomer in such a manner as to maintain both the unpolymerized monomer in the polymerization mixture at the original composition and the polymerization mixture at the original volume. The process is applicable to any polymerization reaction where a polymer is formed from two or more monomers and where a reduction in the volume of reaction mixture occurs during polymerization.

摘要翻译： 通过自调整间歇法自动制备恒定组成共聚物，通过在聚合混合物中将未聚合单体保持在原始状态的方式加入可聚合单体，通过在整个反应过程中将聚合体系保持在恒定体积 组合物和原始体积的聚合混合物。 该方法适用于其中聚合物由两种或多种单体形成并且在聚合期间发生反应混合物体积减小的任何聚合反应。