公开(公告)号：DE10311121A1

公开(公告)日：2004-09-23

申请号：DE10311121

申请日：2003-03-12

Applicant: BASF AG

Inventor： KREITSCHMANN MIRKO ,  ROTERMUND UDO ,  FRITSCH PETER

IPC: C08G18/42 ,  C08G63/16 ,  C08G63/85 ,  C08G63/88

Abstract: A method for the production of polyesterols with reduced reactivity (I) by polycondensation of dicarboxylic acids or their derivatives with H-functional substances in presence of tin catalysts, involves bringing (I) into contact with oxygen after the end of the esterification reaction. An independent claim is also included for polyesterols obtained by this method.

公开(公告)号：BRPI0408143A

公开(公告)日：2006-03-01

申请号：BRPI0408143

申请日：2004-02-24

Applicant: BASF AG

Inventor： KREITSCHMANN MIRKO ,  ROTERMUND UDO ,  FRITSCH PETER

IPC: C08G18/42 ,  C08G63/16 ,  C08G63/85 ,  C08G63/88

Abstract: A method for the production of polyesterols with reduced reactivity (I) by polycondensation of dicarboxylic acids or their derivatives with H-functional substances in presence of tin catalysts, involves bringing (I) into contact with oxygen after the end of the esterification reaction. An independent claim is also included for polyesterols obtained by this method.