Inventor
HELFER WILLI
DE10 patents
Patents
10 patentsUS5808073ASep 15, 1998
Preparation and purification of perylene-3,4-dicarbimides
BASF AG40 citations91
US6136976AOct 24, 2000
Process for producing perylene-3, 4-dicarboxylic acid imides
BASF AG18 citations83
US7145010B2Dec 5, 2006
Tert-alkylphenoxy-substituted polycyclic compounds
BASF AG8 citations72
US7358362B2Apr 15, 2008
Method for the production of terylene-3,4:11,12-tetracarboxydiimides by direct synthesis
BASF AG2 citations60
US7446198B2Nov 4, 2008
9-Cyano-substituted perylene-3, 4-dicarboxylic monoimides
BASF AG2 citations58
US7851628B2Dec 14, 2010
Conversion of perylene-3,4:9,10-tetracarboximides to a form suitable for use as fluorescent dyes
BASF AG0 citations49
US7753967B2Jul 13, 2010
Method for converting perylen-3,4:9,10-tetracarboxylic acid diimides into a form suitable for use as a fluorescent dye
BASF AG0 citations49
US7807836B2Oct 5, 2010
Preparation of perylen-3,4:9,10-tetracarboxylic dianhydride and also of naphtalene-1,8-dicarboximides
BASF AG0 citations48
US7550606B2Jun 23, 2009
9-cyano-substituted perylene-3,4-dicarboxylic acid monoimides
BASF AG0 citations48
US7393956B2Jul 1, 2008
Method for the production of perylen-3,4:9,10-tetracarboxylic acid diimides and perylen-3,4:9,10-tetracarboxylic acid dianhydride and naphtalene-1,8-dicarboxylimides
BASF AG0 citations48