公开(公告)号：US4301264A

公开(公告)日：1981-11-17

申请号：US149940

申请日：1980-05-14

申请人： John D. Moore ,  Alan A. J. Feast

发明人： John D. Moore ,  Alan A. J. Feast

IPC分类号： C08F2/00 ,  C08F2/22 ,  C08F4/00 ,  C08F4/28 ,  C08F4/40 ,  C08F6/00

CPC分类号： C08F6/006

摘要： A process for reducing the residual monomer level of a polymer latex prepared by emulsion polymerization comprises exposing the latex in a separate vessel from that in which the main polymerization has been carried out to conditions under which free radicals are produced by a secondary catalyst added to the latex, the said catalyst being oil soluble or having an oil soluble component. In a preferred embodiment a polymer latex prepared by the emulsion polymerization of styrene alone or a mixture containing styrene having a residual styrene level not exceeding 0.1% based on latex volume may be obtained.

摘要翻译： 用于降低通过乳液聚合制备的聚合物胶乳的残留单体含量的方法包括将单独的容器中的胶乳与已经进行主聚​​合的胶乳暴露于通过添加到 胶乳，所述催化剂是油溶性的或具有油溶性组分。 在优选的实施方案中，可以获得通过单独的苯乙烯的乳液聚合制备的聚合物胶乳或含有基于胶乳体积不超过0.1％的残余苯乙烯含量的苯乙烯的混合物。

公开(公告)号：US4239669A

公开(公告)日：1980-12-16

申请号：US971095

申请日：1978-12-19

申请人： Charles M. Scott ,  Alan A. J. Feast

发明人： Charles M. Scott ,  Alan A. J. Feast

IPC分类号： C08F12/00 ,  C08F2/24 ,  C08F12/02 ,  C08F12/08 ,  C08L25/04

CPC分类号： C08F12/02

摘要： An emulsion polymerization process comprises subjecting an intimate aqueous dispersion of monomer material comprising at least one vinyl aromatic monomer, optionally with unsaturated nitrile or conjugated diene comonomer to a rapid polymerization, preferably adiabatic, in the presence of a particular emulsifier system in a continuous flow agitated reaction carried out at 80.degree. C. to 100.degree. C. The thermoplastic product in latex form is continuously removed and is ideal for use in reinforcing rubber latices. An advantage is that a small reactor may be used to obtain a large throughput.

摘要翻译： 乳液聚合方法包括在特定的乳化剂体系的存在下，在连续流动搅拌下使包含至少一种乙烯基芳族单体的单体材料（任选地与不饱和腈或共轭二烯共聚单体）的紧密水分散体进行快速聚合，优选绝热 在80℃至100℃下进行反应。胶乳形式的热塑性产品被连续地除去，并且是用于增强橡胶胶乳的理想选择。 优点是可以使用小的反应器来获得大的通量。

公开(公告)号：US4272426A

公开(公告)日：1981-06-09

申请号：US126017

申请日：1980-02-29

申请人： Alan A. J. Feast

发明人： Alan A. J. Feast

IPC分类号： C08F2/00 ,  C08F2/22 ,  C08F2/24 ,  C08F20/52 ,  C08F220/58 ,  C08F236/00 ,  C08F236/04 ,  C09D121/00 ,  D06M15/693 ,  D21H19/58 ,  C08L47/00

CPC分类号： D21H19/58 ,  C08F2/24 ,  C08F236/04 ,  D06M15/693

摘要： A process for preparing a carboxylated latex containing an N-alkylolamide of an unsaturated carboxylic acid comprises carrying out the polymerization reaction in two or more stages in which the majority (or all) of the N-alkylolamide monomer is supplied to the second stage. The reaction may be carried out using a batch procedure but a continuous reaction is preferred. The product latex is particularly suitable for paper and textile applications and especially for use in paper coating compositions.

摘要翻译： 制备含有不饱和羧酸的N-烷醇酰胺的羧化胶乳的方法包括在大部分（或全部）N-羟烷基酰胺单体供给到第二阶段的两个或多个阶段中进行聚合反应。 反应可以使用间歇程序进行，但优选连续反应。 产品胶乳特别适用于纸张和纺织品应用，尤其适用于纸张涂料组合物。