公开(公告)号：US11739235B2

公开(公告)日：2023-08-29

申请号：US16472041

申请日：2017-12-20

申请人： BASF SE

发明人： Stephan Weinkoetz ,  Dieter Weilacher ,  Guenter Scherr ,  Jens Steinbeck ,  Evelyn Fuchs ,  Ralf Strohmeier ,  Daniel Flojhar

IPC分类号： C09D161/34 ,  C09D7/20 ,  C08G14/02

CPC分类号： C09D161/34 ,  C08G14/02 ,  C09D7/20

摘要： The present invention relates to a process for preparing liquid compositions of etherified melamine formaldehyde resins, namely melamine formaldehyde resins etherified with a primary C1-C6-alkanol, which have low formaldehyde contents. The invention also relates to such liquid compositions of etherified melamine formaldehyde resins having a content of free formaldehyde of less than 0.3% by weight. The liquid compositions of etherified melamine formaldehyde resins are useful as crosslinking agents in coating compositions.