Inventor
HSU LIANG AN
TW4 patents
Patents
4 patentsUS6350883B1Feb 26, 2002
Method for preparing lactam
DAIREN CHEMICAL CORP37 citations87
US6323347B2Nov 27, 2001
Catalyst for preparing lactone and a method for preparing lactone
DAIREN CHEMICAL CORP11 citations70
US6313262B1Nov 6, 2001
Method for preparing polyether polyol and copolymer thereof
DAIREN CHEMICAL CORP14 citations68
US7265243B2Sep 4, 2007
Catalytic oxacylation vapor phase process
DAIREN CHEMICAL CORP5 citations59