公开(公告)号：US4081592A

公开(公告)日：1978-03-28

申请号：US769510

申请日：1977-02-17

申请人： Brandford E. Giddings ,  Gerald P. Coffey ,  William M. Giffen, Jr. ,  Herbert F. Mazeke

发明人： Brandford E. Giddings ,  Gerald P. Coffey ,  William M. Giffen, Jr. ,  Herbert F. Mazeke

IPC分类号： C08F2/38 ,  C08F220/44 ,  C08F2/00 ,  C08F26/00 ,  C08F32/00

CPC分类号： C08F2/38 ,  C08F220/44

摘要： Acrylonitrile copolymers having controlled molecular weight are prepared using terpinolene or gamma terpinene as chain length modifier.

公开(公告)号：US4082818A

公开(公告)日：1978-04-04

申请号：US687151

申请日：1976-05-17

申请人： Gerald P. Coffey ,  Herbert F. Mazeke

发明人： Gerald P. Coffey ,  Herbert F. Mazeke

IPC分类号： C08F2/00 ,  C08F2/38 ,  C08F20/00 ,  C08F20/42 ,  C08F220/42 ,  C08F255/06 ,  C08F279/00 ,  C08F279/02 ,  C08L51/04 ,  C08F4/00 ,  C08F220/44

CPC分类号： C08F220/42 ,  C08F279/02

摘要： Molecular weight control is achieved in the production of acrylonitrile copolymers by means of an acid-activated mercaptan chain transfer agent.

公开(公告)号：US4504605A

公开(公告)日：1985-03-12

申请号：US451036

申请日：1982-12-20

申请人： June T. Duke ,  Herbert F. Mazeke ,  Dorothy C. Prem

发明人： June T. Duke ,  Herbert F. Mazeke ,  Dorothy C. Prem

IPC分类号： C08F265/00 ,  C08F265/08 ,  C08F285/00 ,  C09D151/00 ,  C08F20/34

CPC分类号： C08F265/08 ,  C08F285/00 ,  Y10S525/902

摘要： A stable aqueous latex of a copolymer containing at least about 40 percent by weight of a polymerized olefinic unsaturated nitrile is described. The copolymer comprises a main polymer core of from about 40 to 100 percent by weight of the polymerized nitrile and from about 0 to about 60 percent by weight of at least one other polymerized olefin monomer, said main polymer core being overpolymerized with a copolymer comprising a major proportion of a polymerized acrylate and from about one to 40 percent by weight of a polymerized olefinic unsaturated nitrile. A two-step method for preparing such a latex also is described. The latices of the invention are useful in forming films at low temperatures, and the minimum film forming temperature can be regulated by the selection of the particular components and the relative amounts of the components used to form the latices.

摘要翻译： 描述了含有至少约40重量％聚合的烯属不饱和腈的共聚物的稳定水性胶乳。 该共聚物包含约40-100重量％的聚合腈和约0至约60重量％的至少一种其它聚合的烯烃单体的主要聚合物核，所述主聚合物芯与共聚物过度聚合，所述共聚物包含 聚合丙烯酸酯的主要比例和约1-40重量％的聚合的烯属不饱和腈。 还描述了制备这种胶乳的两步法。 本发明的胶乳可用于在低温下形成薄膜，并且可以通过选择特定组分和用于形成胶乳的组分的相对量来调节最低成膜温度。