公开(公告)号：US4105637A

公开(公告)日：1978-08-08

申请号：US514146

申请日：1974-10-11

申请人： Michael Semanchik ,  David M. Braunstein

发明人： Michael Semanchik ,  David M. Braunstein

IPC分类号： B01J19/20 ,  B29C47/40 ,  C08F2/00 ,  C08G2/00 ,  C08G2/10

CPC分类号： B29C47/402 ,  B01J19/20 ,  B29C47/38 ,  C08G2/00 ,  B29C47/0009

摘要： A process for producing a polyacetal polymer. The process includes reacting a polyacetal forming polymerization mixture in a polymerization reaction zone, which zone includes an elongated casing substantially following the outer boundaries of at least a pair of shafts, each of the shafts provided with a plurality of intermeshing elliptical shaped plates having flattened edges at the major axis which mesh, wiping the surface of its mating plate. The polymerization mixture is polymerized to form a polyacetal product in the form of a finely divided solid.

公开(公告)号：US4708918A

公开(公告)日：1987-11-24

申请号：US843053

申请日：1986-03-24

申请人： Maurice E. Fitzgerald ,  David M. Braunstein ,  Saulius A. Alkaitis ,  Naum Pinsky

发明人： Maurice E. Fitzgerald ,  David M. Braunstein ,  Saulius A. Alkaitis ,  Naum Pinsky

IPC分类号： C03C3/087 ,  C03C17/23 ,  H01M4/68 ,  H01M10/18 ,  H01M4/14

CPC分类号： H01M10/18 ,  C03C17/23 ,  C03C3/087 ,  H01M4/68 ,  C03C2217/211 ,  C03C2217/24

摘要： A battery element useful as at least a portion of the positive plates in a lead-acid battery comprises: an acid resistant substrate at least partially coated with an electrically conductive coating; and a fluid impervious matrix layer having mutually opposing first and second surfaces situated such that at least a portion of the coated substrate is embedded in the matrix layer which comprises polymer having increased polarity relative to polypropylene. This battery element may also be used in the bipolar plates of a lead-acid battery.

摘要翻译： 用作铅酸电池中的正极板的至少一部分的电池元件包括：至少部分涂覆有导电涂层的耐酸基材; 以及具有相互相对的第一和第二表面的不透液体的基质层，所述第一和第二表面被定位成使得至少一部分所涂覆的基底被包埋在基质层中，所述基质层包含相对于聚丙烯具有增加的极性的聚 该电池元件也可用于铅酸电池的双极板。

公开(公告)号：US5786514A

公开(公告)日：1998-07-28

申请号：US769197

申请日：1996-12-18

申请人： Jianzhong Shen ,  Sujuan Ba ,  David M. Braunstein ,  Haven S. Kesling, Jr.

发明人： Jianzhong Shen ,  Sujuan Ba ,  David M. Braunstein ,  Haven S. Kesling, Jr.

IPC分类号： B01J27/26 ,  C07C45/71 ,  C08G65/26 ,  C07C45/70

CPC分类号： C08G65/2663 ,  B01J27/26 ,  C07C45/71 ,  C08G65/2603 ,  C08G65/2612

摘要： A process for alkoxylating phenols is disclosed. The process comprises reacting a carbonyl-functionalized phenol with an alkylene oxide in the presence of a substantially non-crystalline double metal cyanide (DMC) catalyst. The process offers fast reaction times at low catalyst levels, reduced problems with condensation side reactions, and low-color, low-viscosity, low-polydispersity alkoxylated phenols. The process enables efficient preparation of alkoxylated carbonyl-functonalized phenols that are especially valuable in the surfactant industry.

摘要翻译： 公开了一种烷氧基化酚的方法。 该方法包括在基本上非结晶的双金属氰化物（DMC）催化剂的存在下使羰基官能化的酚与烯化氧反应。 该方法在低催化剂水平下提供快速的反应时间，减少冷凝副反应的问题以及低色，低粘度，低多分散性烷氧基化酚。 该方法能够有效地制备在表面活性剂工业中特别有价值的烷氧基化羰基 - 官能化酚。