公开(公告)号：US3701676A

公开(公告)日：1972-10-31

申请号：US3701676D

申请日：1970-05-20

申请人： DEGUSSA ,  BUETTNER SCHILDE HAAS AG

发明人： BADER ERICH ,  KANNENBERG KARL G ,  RICKE HANS-BENNO

IPC分类号： B05D7/14 ,  B05D3/02 ,  B05D3/04 ,  B05D5/00 ,  B05D7/22 ,  B23P6/00 ,  C08F20/28 ,  B44D1/34

CPC分类号： B05D7/22 ,  B05D3/0254 ,  B05D3/0493 ,  B05D2502/00 ,  C08F20/28

摘要： THE SURFACES OF CAST METAL ARTICLES ARE IMPREGNATED AND/OR SEALED BY INTRODUCING INTO THE PORES OF THE METAL A LIQUID POLYMERIZABLE ESTER OF METHACRYLIC ACID OR ACRYLIC ACID OR A MIXTURE OF BOTH WITH AT LEAST ONE POLYHYDRIC ALCOHOL WHEREUPON THE ESTER IS CURED IN THE ABSENCE OF A POLYMERIZATION CATALYST. THE APPLICATION OF THE ESTER IS EFFECTED UPON APPLICATION OF PRESSURE OR OF A VACUUM OR BY APPLYING, SUCCESSIVELY, BOTH PRESSURE AND A VACUUM. THE POLYMERIZATION IS EFFECTED WITHIN THE PORES OF THE METAL IMPROVE THE IMPERMEABILITY OF THE METAL.