公开(公告)号：US4851047A

公开(公告)日：1989-07-25

申请号：US141743

申请日：1988-01-11

申请人： Ulrich Demlehner ,  Herbert Eck ,  Heinrich Hopf ,  Erich Pilzweger ,  Otto Zeller

发明人： Ulrich Demlehner ,  Herbert Eck ,  Heinrich Hopf ,  Erich Pilzweger ,  Otto Zeller

IPC分类号： C04B20/02 ,  C04B28/14 ,  C04B40/00

CPC分类号： C04B40/0028 ,  C04B20/02 ,  C04B28/14

摘要： The present invention relates to gypsum powders containing a hydrophobic agent and to water-repellent articles which are prepared from gypsum containing powered hydrophobic agents, in which the hydropohobic agents are prepared by spray-drying a mixture containing at least water, an organopolysiloxane having Si-bonded hydrogen and a water-soluble, film-forming polymer having a turbidity point of from 35.degree. to 98.degree. C.

摘要翻译： 本发明涉及含有疏水剂的石膏粉末和由含有动力疏水剂的石膏制备的防水制品，其中所述疏水剂通过喷雾干燥至少含有水的混合物，具有Si- 粘结氢和浊点为35〜98℃的水溶性成膜聚合物。