公开(公告)号：EP1210209A4

公开(公告)日：2004-06-30

申请号：EP00952699

申请日：2000-08-10

申请人： RODEL INC

发明人： ROBERTS JOHN V H ,  PINHEIRO BARRY SCOTT ,  JAMES DAVID B

IPC分类号： B24B37/20 ,  B24D3/28 ,  B24D7/12 ,  B24D13/14 ,  B24B37/04 ,  B24D11/00

CPC分类号： B24B37/205 ,  B24D3/28

摘要： A polishing pad (10) is formed as a one-piece article having a region (12) which is transparent and an adjacent region (14) which is opaque. The article (10) is formed by solidifying a flowable polymeric material which at least initially has a uniform composition. The flowable polymeric material is processed during a molding operation to provide the transparent region (12) and the adjacent opaque region (14). Types of polymeric material suitable for making the polishing pad (10) include a single thermoplastic material, a blend of thermoplastic materials, and a reactive thermosetting polymer.