Inventor
LUEHMANN ERHARD
DE33 patents
⚠️ This page may combine multiple inventors who share the name “LUEHMANN ERHARD”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
WOLFF WALSRODE AG
16 patentsUS5684081ANov 4, 1997
Radiation-curable, aqueous dispersions, production and use thereof
WOLFF WALSRODE AG73 citations96
US6274653B1Aug 14, 2001
Bonding agent preparations for paints, the production and use thereof
WOLFF WALSRODE AG29 citations92
US5089586AFeb 18, 1992
Water-dispersible allyl urethanes and their use for the production of paints
WOLFF WALSRODE AG29 citations92
US4970247ANov 13, 1990
Aqueous cellulose ester dispersions and their preparation
WOLFF WALSRODE AG31 citations92
US5510453AApr 23, 1996
Polymerizable, highly crosslinking lacquer binders and their use for the production of lacquers
WOLFF WALSRODE AG7 citations73
US5011874AApr 30, 1991
Cellulose ester/polymer combinations, and their preparation and use
WOLFF WALSRODE AG18 citations73
US4933428AJun 12, 1990
Polymerizable water soluble binders
WOLFF WALSRODE AG10 citations73
US4764548AAug 16, 1988
Tile adhesive based on water-dilutable, cellulose-containing pastes
WOLFF WALSRODE AG8 citations73
US5711793AJan 27, 1998
Lacquer vehicles in granular form and free from emulsifying agents, and their preparation
WOLFF WALSRODE AG12 citations72
US5565504AOct 15, 1996
Aqueous reactive microgel dispersions, a method of preparing them and their use
WOLFF WALSRODE AG7 citations72
US4731121AMar 15, 1988
Viscous cellulose-containing mixture (paste) and use thereof in the production of aqueous coating dispersions
WOLFF WALSRODE AG3 citations63
US4659387AApr 21, 1987
Nitrocellulose moistened with tertiary alcohols and the use thereof in polyurethane lacquers
WOLFF WALSRODE AG2 citations63
US4590019AMay 20, 1986
Processes for the production of free-flowing nitrocellulose
WOLFF WALSRODE AG5 citations63
US5484826AJan 16, 1996
Free-flowing, quick-dissolving lacquer binder granules
WOLFF WALSRODE AG3 citations62
US5459196AOct 17, 1995
Reactive water-emulsifiable binders and their use for the production of lacquers
WOLFF WALSRODE AG5 citations62
US5362313ANov 8, 1994
Coating composition and its use
WOLFF WALSRODE AG2 citations60
BAYER AG
9 patentsUS6541536B2Apr 1, 2003
Polyurethane dispersions
BAYER AG34 citations92
US6420478B1Jul 16, 2002
Binder compositions and their use in aqueous coating and adhesive compositions
BAYER AG21 citations92
US6521702B1Feb 18, 2003
Aqueous polyurethane emulsions
BAYER AG41 citations90
US6960639B2Nov 1, 2005
Radiation-curing coating compositions
BAYER AG13 citations84
US6710120B2Mar 23, 2004
Polyurethane dispersions based on fatty acid dialkanolamides
BAYER AG17 citations84
US4517324AMay 14, 1985
Viscous cellulose-containing mixture (paste) and a process for the production of aqueous coating emulsions therefrom
BAYER AG25 citations81
US6197874B1Mar 6, 2001
Polyurethane-polyacrylate hybrid dispersions containing allophanate groups
BAYER AG12 citations74
US4772329ASep 20, 1988
Aqueous dispersions based on cellulose nitrates, a process for their production and their use as quick-hardening coatings
BAYER AG10 citations74
US6583215B2Jun 24, 2003
Aqueous 2-component PU systems
BAYER AG12 citations73
SOMMER STEFAN
6 patentsUS8231976B2Jul 31, 2012
Block-resistant, radiation-curable coating systems based on high molecular mass, aqueous polyurethane dispersions
SOMMER STEFAN6 citations73
US8933146B2Jan 13, 2015
Process for producing hard coating systems based on aqueous polyurethane dispersions
SOMMER STEFAN3 citations62
US8865832B2Oct 21, 2014
Tin-free aqueous polyurethane dispersions
SOMMER STEFAN2 citations59
US8647471B2Feb 11, 2014
Process for the production of sized and/or wet-strength papers, paperboards and cardboards
SOMMER STEFAN0 citations46
US9676894B2Jun 13, 2017
Aqueous polyurethane dispersions
SOMMER STEFAN1 citations45
US9567423B2Feb 14, 2017
Low-viscosity polyurethane acrylate dispersions
SOMMER STEFAN0 citations41