公开(公告)号：US4269871A

公开(公告)日：1981-05-26

申请号：US164442

申请日：1980-06-30

申请人： Elizabeth A. Blommers ,  William J. Poole ,  Alvin R. Ingram

发明人： Elizabeth A. Blommers ,  William J. Poole ,  Alvin R. Ingram

IPC分类号： C08J9/18 ,  C08J9/224 ,  C08J9/14

CPC分类号： C08J9/224 ,  C08J9/18 ,  C08J2325/00

摘要： Expandable styrene polymer particles are surface-coated with conjugated diene elastomers to prevent the particles from lumping together during expansion. The coating is applied by adding 0.05-0.25 part of conjugated diene elastomer to an aqueous suspension containing 100 parts of polymer particles during the impregnation of the mixture with a blowing agent.

摘要翻译： 可膨胀的苯乙烯聚合物颗粒用共轭二烯弹性体进行表面涂覆以防止在膨胀期间颗粒团聚在一起。 通过在用发泡剂浸渍混合物的同时将0.05-0.25份共轭二烯弹性体加入到含有100份聚合物颗粒的水性悬浮液中来施加涂层。

公开(公告)号：US4867835A

公开(公告)日：1989-09-19

申请号：US5579

申请日：1987-01-15

申请人： William J. Poole

发明人： William J. Poole

IPC分类号： B29C65/20 ,  B29C65/78

CPC分类号： B29C65/78 ,  B29C65/20 ,  B29C65/7841 ,  B29C66/1142 ,  B29C66/1162 ,  B29C66/43 ,  B29C66/43421 ,  B29C66/5241 ,  B29C66/52431 ,  B29C66/73921 ,  B29C66/83221 ,  B29C66/0042 ,  B29C66/71 ,  B29C66/8122 ,  B29K2027/06 ,  B29L2023/22 ,  B29L2031/26

摘要： A waterstop splicing method and apparatus including a table having first and second coplanar aligned table top surfaces that simultaneously and equally, open and close by mechanical means driven by adjustable compression springs which provide equal forces to both tops. The table is equipped with two identical clamping arm assemblies in proximate relation to the facing edges of the two table surfaces, with one clamping arm assembly for each side, each of the clamping arm assemblies being provided with a bar having slidably and lockably assembled thereon a plurality of clamp devices, which are individually adjustable for pressure, width and cross-section of the waterstop strips for enabling securing of a waterstop to the table at any desired angle without puncturing. A removable recessed channel is provided in the middle of the table for supporting a thermoplastic welding iron having opposing heated parallel surfaces for simultaneously contacting the ends of a pair of aligned strips. The iron is moved along the channel to a point which centrally intersects the adjacent ends of the waterstop, whereupon the ends are brought into contact with the iron which remains stationary until the melting process is complete. Then, the table tops are separated and the iron is moved along the channel out of the way during the welding process. The recessed channel keeps dirt and debris from entering the weld area and allows the excess melted thermoplastic material, when compressed, to uniformly squeeze out of the weld area around the joint forming a void free monolithic weld throughout the web of the waterstop.

摘要翻译： 一种止水拼接方法和装置，包括具有第一和第二共面对准的桌面的台面，所述台面同时且同样地由通过可调压缩弹簧驱动的机械装置打开和关闭，所述压缩弹簧对两个顶部提供相等的力。 桌子配备有两个相同的夹紧臂组件，其紧密相对于两个工作台表面的相对边缘，每个侧面具有一个夹紧臂组件，每个夹紧臂组件设置有可滑动地且可锁定地组装在其上的杆 多个夹紧装置，其可单独地调节用于压水条的宽度和横截面，以便能够以任何所需的角度将止水器固定在桌子上而不刺穿。 在桌子的中间设置有一个可移动的凹槽，用于支撑具有相对加热的平行表面的热塑性焊接铁，以同时接触一对对准的条带的端部。 铁沿着通道移动到与止水块的相邻端部中心相交的点，然后端部与铁保持固定，直到熔化过程完成。 然后，在焊接过程中，桌面被分开，铁路沿着通道移动。 凹陷的通道使污物和碎屑不会进入焊接区域，并且在压缩时允许过量熔化的热塑性材料均匀地挤出出接头周围的焊缝区域，从而在整个整个网板上形成无空隙的整体焊缝。

公开(公告)号：US5240967A

公开(公告)日：1993-08-31

申请号：US18601

申请日：1993-02-17

申请人： Fred M. Sonnenberg ,  Dennis M. Hajnik ,  William J. Poole

发明人： Fred M. Sonnenberg ,  Dennis M. Hajnik ,  William J. Poole

IPC分类号： C08F212/08 ,  C08F20/10 ,  C08F212/00 ,  C08F220/10 ,  C08F220/18 ,  C08F257/02 ,  C08J9/20

CPC分类号： C08J9/20 ,  C08F257/02 ,  C08J2325/14 ,  C08J2351/00

摘要： A method for improving the expandability of styrenic polymer particles is disclosed. The method comprises copolymerizing a styrenic monomer with an amount of an acrylate monomer effective to improve the expandability of the particles without adversely affecting their heat sensitivity. Polymer foams of low density can be prepared with reduced amounts of blowing agents.

摘要翻译： 公开了一种改善苯乙烯聚合物颗粒膨胀性的方法。 该方法包括使苯乙烯单体与一定量的丙烯酸酯单体共聚，其有效地改善颗粒的可膨胀性，而不会不利地影响其热敏感性。 可以用减少量的发泡剂制备低密度聚合物泡沫。