公开(公告)号：US06358580B1

公开(公告)日：2002-03-19

申请号：US09582958

申请日：2000-07-07

申请人： Thomas Mang ,  Günter Preiser ,  Jürgen Dahm

发明人： Thomas Mang ,  Günter Preiser ,  Jürgen Dahm

IPC分类号： B29D2200

CPC分类号： C09K3/1015 ,  C08L1/02 ,  C08L1/10 ,  C08L3/02 ,  C08L3/04 ,  C08L3/12 ,  C08L21/00 ,  C08L25/10 ,  C08L33/00 ,  C09K2003/104 ,  C09K2200/06 ,  C09K2200/0602 ,  C09K2200/0607 ,  C09K2200/0625 ,  C09K2200/0627 ,  Y10T428/1307 ,  Y10T428/1334 ,  Y10T428/1352 ,  Y10T428/1355 ,  Y10T428/1362 ,  Y10T428/249953 ,  Y10T428/31569 ,  Y10T428/31573 ,  C08L2666/26 ,  C08L2666/02

摘要： The invention relates to an optionally foamed sealing composition for preformed seals which can swell when treated with water. The invention also relates to a method for the production thereof out of natural rubber and/or elastomers with a matrix comprised of natural rubber/elastomer components and particle-shaped water absorbing material stored therein. The water absorbing material is a combination of (A) polysaccharide(s) selected from cellulose, starch, starch derivatives removed from grafted starch, amylose, amylopectin, dextran, pectin, inulin, chitin, xanthan, alginic acid, alginates, carrageenan, pustulan, callose, laminarin, guluronic acid, pullulan, lichenin or mixtures of the same with (B) a highly water absorbent synthetic polymer selected from polymers based on (meth)acrylate, poly(meth)acrylic acid and the salts thereof, polyacrylamide, polyalcohols or copolymers of said synthetic polymers. The invention also relates to additional cross-linking and processing auxiliary agents and to property improving agents. It is possible to securely seal superstructures, substructures, tunnels and canals with the assistance of the inventive sealing compositions.

摘要翻译： 本发明涉及用于预处理密封件的任选发泡的密封组合物，其在用水处理时可膨胀。 本发明还涉及一种由天然橡胶和/或弹性体制备的方法，所述天然橡胶和/或弹性体具有由天然橡胶/弹性体组分和存储在其中的颗粒状吸水材料组成的基质。 吸水材料是选自纤维素，淀粉，从接枝淀粉中除去的淀粉衍生物，直链淀粉，支链淀粉，葡聚糖，果胶，菊粉，甲壳素，黄原胶，海藻酸，藻酸盐，角叉菜胶，脓疱肉中的（A）多糖的组合 ，胼cal质，昆布糖，古洛糖酸，支链淀粉，地衣林或其混合物与（B）选自基于（甲基）丙烯酸酯，聚（甲基）丙烯酸及其盐，聚丙烯酰胺，多元醇的聚合物的高吸水性合成聚合物 或所述合成聚合物的共聚物。 本发明还涉及附加的交联和加工助剂以及性能改进剂。 借助于本发明的密封组合物，可以可靠地密封上部结构，子结构，隧道和运河。