Inventor
HETTEL HANS
DE13 patents
Patents
13 patentsUS5977198ANov 2, 1999
Process for the production of resilient, flexible polyurethane foams
BAYER AG27 citations92
US5023280AJun 11, 1991
Process for the production of polyurethane foams
BAYER AG32 citations92
US4977194ADec 11, 1990
Process for the preparation of polyurethane foams
BAYER AG27 citations92
US4493909AJan 15, 1985
Poly-N,N-hydroxyalkylamides of polybasic carboxylic acids and a process for the production thereof
BAYER AG27 citations92
US4456709AJun 26, 1984
Polyisocyanate mixtures, process for their production and their use in the production of polyurethane plastics
BAYER AG20 citations82
US4668734AMay 26, 1987
Stable dispersions of polyureas and/or polyhydrazo-dicarbonamides in relatively high molecular weight hydroxyl-group containing materials, a process for the production thereof and the use thereof for the production of polyurethane plastics
BAYER AG12 citations74
US5104905AApr 14, 1992
Process for the preparation of polyurethane foams
BAYER AG6 citations73
US4618706AOct 21, 1986
Process for the preparation of aromatic polyisocyanates containing urea and/or biuret groups
BAYER AG13 citations73
US4546116AOct 8, 1985
Process for the production of highly elastic foams containing urethane groups and foams obtainable by this process
BAYER AG8 citations73
US5158987AOct 27, 1992
Process for the preparation of highly elastic polyurethane flexible foams and their use as upholstery material
BAYER AG2 citations62
US5104906AApr 14, 1992
Process for the preparation of polyurethane foams
BAYER AG5 citations62
US5017623AMay 21, 1991
Process for the preparation of polyurethane foams
BAYER AG5 citations62
US4981878AJan 1, 1991
Process for the production of heat curable flexible polyurethane molded foams
BAYER AG0 citations50