公开(公告)号：DE59308366D1

公开(公告)日：1998-05-14

申请号：DE59308366

申请日：1993-05-03

Applicant: BASF AG

Inventor： GRAF HERMANN DR ,  DEUKER ERNST DR ,  WOLFF STEFAN DR ,  SCHUSTER LUDWIG DR ,  WACK SERGE ,  HARDT RICHARD

IPC: C07D229/00 ,  C07D251/34 ,  C08G18/79

Abstract: The invention relates to a process for brightening polyisocyanates containing isocyanurate and uretdione groups, characterised in that the demonomerised polyisocyanates containing isocyanurate and uretdione groups are treated with oxygen.

公开(公告)号：ES2113970T3

公开(公告)日：1998-05-16

申请号：ES93107116

申请日：1993-05-03

Applicant: BASF AG

Inventor： GRAF HERMANN DR ,  DEUKER ERNST DR ,  WOLFF STEFAN DR ,  SCHUSTER LUDWIG DR ,  WACK SERGE ,  HARDT RICHARD

IPC: C07D229/00 ,  C07D251/34 ,  C08G18/79

Abstract: The invention relates to a process for brightening polyisocyanates containing isocyanurate and uretdione groups, characterised in that the demonomerised polyisocyanates containing isocyanurate and uretdione groups are treated with oxygen.

公开(公告)号：AT164841T

公开(公告)日：1998-04-15

申请号：AT93107116

申请日：1993-05-03

Applicant: BASF AG

Inventor： GRAF HERMANN DR ,  DEUKER ERNST DR ,  WOLFF STEFAN DR ,  SCHUSTER LUDWIG DR ,  WACK SERGE ,  HARDT RICHARD

IPC: C07D229/00 ,  C07D251/34 ,  C08G18/79

Abstract: The invention relates to a process for brightening polyisocyanates containing isocyanurate and uretdione groups, characterised in that the demonomerised polyisocyanates containing isocyanurate and uretdione groups are treated with oxygen.

公开(公告)号：DE4215746A1

公开(公告)日：1993-11-18

申请号：DE4215746

申请日：1992-05-13

Applicant: BASF AG

Inventor： GRAF HERMANN DR ,  DEUKER ERNST DR ,  WOLFF STEFAN DR ,  SCHUSTER LUDWIG DR ,  WACK SERGE ,  HARDT RICHARD

IPC: C07D229/00 ,  C07D251/34 ,  C08G18/79

Abstract: The invention relates to a process for brightening polyisocyanates containing isocyanurate and uretdione groups, characterised in that the demonomerised polyisocyanates containing isocyanurate and uretdione groups are treated with oxygen.