Inventor
TOWAE FRIEDRICH
23 patents
Patents
23 patentsUS4596679AJun 24, 1986
Multiple-step process for the preparation of 3-isocyanatomethyl-3,5,5-trimethylcyclohexylisocyanate
BASF AG145 citations97
US4596678AJun 24, 1986
Multiple-step process for the preparation of hexamethylene diisocyanate-1,6 and/or isomeric aliphatic diisocyanates with six carbon atoms in the alkylene residue
BASF AG150 citations96
US4713476ADec 15, 1987
Process for the preparation of aliphatic di- and polyurethanes
BASF AG41 citations92
US4613466ASep 23, 1986
Preparation of hexamethylene 1,6-diisocyanate and/or isomeric diisocyanates where alkylene is of 6 carbon atoms
BASF AG26 citations92
US4537960AAug 27, 1985
Preparation of carbamates
BASF AG39 citations92
US4497963AFeb 5, 1985
Process for the preparation of an aliphatic, cycloaliphatic, and/or aliphatic-cycloaliphatic di- and/or polyurethane
BASF AG33 citations92
US4482499ANov 13, 1984
Process for the preparation of isocyanates by thermal cleaving of urethanes
BASF AG35 citations92
US4436668AMar 13, 1984
Preparation of carbonates
BASF AG35 citations92
US4290970ASep 22, 1981
Process for the manufacture of aromatic di- and/or polyisocyanates
BASF AG47 citations92
US4192949AMar 11, 1980
Preparation of aralkyl phenyl ethers and alkyl phenyl ethers
BASF AG36 citations91
US4611079ASep 9, 1986
Process for the preparation of N-aryl di- or polyurethanes
BASF AG24 citations82
US4330479AMay 18, 1982
Thermal decomposition of aryl urethanes
BASF AG18 citations82
US4695645ASep 22, 1987
Process for the preparation of N,o-substituted mono-and/or polyurethanes
BASF AG12 citations74
US4349484ASep 14, 1982
Process for the manufacture of mixtures of diphenylmethane diisocyanates and polyphenyl polymethylene polyisocyanates
BASF AG7 citations74
US4322365AMar 30, 1982
Preparation of isocyanates
BASF AG8 citations74
US4278805AJul 14, 1981
Process for the preparation of an aryl mono-, di-, and/or polyurethane
BASF AG7 citations74
US4191838AMar 4, 1980
Acryloxy-alkylpropanals and methacryloxy-alkylpropanals
BASF AG16 citations73
US4530796AJul 23, 1985
Process for the preparation of isocyanates through the thermal cleavage of urethanes
BASF AG17 citations72
US4740610AApr 26, 1988
Process for the preparation of N,o-substituted mono- and/or polyurethanes
BASF AG4 citations63
US4375000AFeb 22, 1983
Process for the preparation of an aryl mono-, di-, and/or polyurethane
BASF AG6 citations63
US4319035AMar 9, 1982
Process for recycling noble metal catalysts used for the manufacture of aromatic urethanes
BASF AG3 citations63
US4294971AOct 13, 1981
Preparation of N-aryloxazolidine-2,4-diones
BASF AG3 citations63
US4459236AJul 10, 1984
Preparation of 1-alkenyl isocyanates
BASF AG2 citations62