-
公开(公告)号：US06727291B2
公开(公告)日：2004-04-27
申请号：US09985476
申请日：2001-11-05
IPC分类号： C08J922
CPC分类号： C08J9/16 , B29B7/88 , B29B9/065 , B29B9/12 , C08J2201/03 , C08J2203/12 , C08J2203/14 , C08J2323/10
摘要： A process prepares expandable propylene polymer beads by mixing propylene polymer melt with a volatile organic blowing agent and with a nucleating agent in an extruder, whereupon the extrusion and pelletization of the extruded takes place in a water bath under conditions of temperature and pressure at which practically no foaming of the pellets takes place.
摘要翻译： 一种方法通过将丙烯聚合物熔体与挥发性有机发泡剂和成核剂在挤出机中混合来制备可膨胀的丙烯聚合物珠粒，然后挤出和挤出的造粒在温度和压力的条件下在水浴中进行，其中实际上 不发生颗粒发泡。
-
公开(公告)号：US06476089B1
公开(公告)日：2002-11-05
申请号：US10145731
申请日：2002-05-16
IPC分类号： H05T710
CPC分类号： C08J9/18 , C08J2201/03 , C08J2201/032 , C08J2203/12 , C08J2203/14 , C08J2203/142 , C08J2323/10
摘要： The invention relates to expandable olefin bead polymers which comprise a blowing agent with a boiling point of from −5 to 150° C., selected from the group consisting of alkanes, alkanols, ketones, ethers and esters. The particles are unfoamed and have a bulk density above 500 g/l, and can be foamed to a bulk density below 200 g/l after storage for one hour at room temperature in free contact with the atmosphere. They are prepared by impregnating polyolefin pellets in suspension in a pressure vessel with the blowing agent, cooling the batch below 100° C., reducing the pressure and isolating the particles.
-
公开(公告)号：US20050236728A1
公开(公告)日：2005-10-27
申请号：US10519801
申请日：2003-06-30
申请人： Christian Maletzko , Franz-Josef Dietzen , Uwe Keppeler , Frank Braun , Klaus Hahn , Isidor de Grave
发明人： Christian Maletzko , Franz-Josef Dietzen , Uwe Keppeler , Frank Braun , Klaus Hahn , Isidor de Grave
CPC分类号： C08J9/20 , C08J9/0061 , C08J2203/06 , C08J2203/14 , C08J2205/05 , C08J2323/10
摘要： The invention relates to foam beads of propylene polymers which comprise more than 40% of open cells. They are produced by impregnating propylene polymer minigranules which comprise from 1 to 40% by weight of a cell opener with a volatile blowing agent in aqueous suspension and subsequently decompressing the mixture.
摘要翻译： 本发明涉及包含大于40％的开孔的丙烯聚合物泡沫珠。 它们是通过将包含1至40重量％的开孔剂的丙烯聚合物微粒浸入含水悬浮液中的挥发性发泡剂并随后将混合物减压的方法制备的。
-
公开(公告)号：US06864298B2
公开(公告)日：2005-03-08
申请号：US10466479
申请日：2002-02-06
申请人： Christian Maletzko , Uwe Keppeler , Klaus Hahn , Isidor de Grave
发明人： Christian Maletzko , Uwe Keppeler , Klaus Hahn , Isidor de Grave
CPC分类号： C08J9/26 , C08J9/224 , C08J2201/044 , C08J2203/14 , C08J2323/02
摘要： The invention relates to expandable polyolefin beads which comprise blowing agent and have been coated with from 0.01 to 3% by weight of a salt and/or ester of a long-chain fatty acid, preferably with calcium stearate, to prevent caking during foaming.
摘要翻译： 本发明涉及包含发泡剂并且已经用0.01至3重量％的长链脂肪酸的盐和/或酯优选用硬脂酸钙涂覆的可发性聚烯烃珠，以防止在起泡期间结块。
-
公开(公告)号：US06448300B1
公开(公告)日：2002-09-10
申请号：US09669733
申请日：2000-09-26
IPC分类号： C08J918
CPC分类号： C08J9/18 , C08J2201/03 , C08J2201/032 , C08J2203/12 , C08J2203/14 , C08J2203/142 , C08J2323/10
摘要： The invention relates to expandable olefin bead polymers which comprise a blowing agent with a boiling point of from −5 to 150° C., selected from the group consisting of alkanes, alkanols, ketones, ethers and esters. The particles are unfoamed and have a bulk density above 500 g/l, and can be foamed to a bulk density below 200 g/l after storage for one hour at room temperature in free contact with the atmosphere. They are prepared by impregnating polyolefin pellets in suspension in a pressure vessel with the blowing agent, cooling the batch below 100° C., reducing the pressure and isolating the particles.
摘要翻译： 本发明涉及可膨胀的烯烃珠聚合物，其包含沸点为-5至150℃的发泡剂，其选自烷烃，链烷醇，酮，醚和酯。 颗粒未发泡并且具有高于500g / l的堆积密度，并且在与大气自由接触的室温下储存1小时后，可以发泡至200g / l以下的体积密度。 它们通过将聚烯烃粒料悬浮在用发泡剂的压力容器中浸渍而制备，将批料冷却至100℃以下，降低压力并分离颗粒。
-
-
-
-
搜索结果
5 条记录 (耗时 0.01 秒)
