Inventor
HALPAAP REINHARD
DE83 patents
⚠️ This page may combine multiple inventors who share the name “HALPAAP REINHARD”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
BAYER AG
42 patentsUS6767958B2Jul 27, 2004
Modified polyisocyanates
BAYER AG88 citations98
US6426414B1Jul 30, 2002
Polyether-modified polyisocyanate mixtures having improved dispersibility in water
BAYER AG129 citations98
US5252696AOct 12, 1993
Water-dispersible polyisocyanate mixtures, a process for their preparation and their use in two-component aqueous compositions
BAYER AG185 citations98
US5821326AOct 13, 1998
Process for preparing mono and polyaspartates
BAYER AG70 citations96
US5623045AApr 22, 1997
Process for the preparation of coatings
BAYER AG72 citations96
US5510444AApr 23, 1996
Powder coating compositions and their use for coating heat-resistant substrates
BAYER AG86 citations96
US5508337AApr 16, 1996
Powder coating compositions, a process for their preparation, and their use for the coating of heat resistant substrates
BAYER AG63 citations96
US6392001B1May 21, 2002
Process for the production of light-stable polyisocyanates containing allophanate groups
BAYER AG55 citations95
US6100326AAug 8, 2000
Use of special isocyanates for preparing aqueous polyurethane coatings
BAYER AG33 citations93
US6281322B1Aug 28, 2001
Coating compositions containing alkoxysilanes
BAYER AG42 citations92
US5847044ADec 8, 1998
Polyurethane powder coating compositions which have a low stoving temperature
BAYER AG46 citations92
US5717091AFeb 10, 1998
Polycyclic iminooxadiazinediones, their preparation and use
BAYER AG24 citations92
US5621064AApr 15, 1997
Uretdione powder coating cross-linking agents having a low melt viscosity
BAYER AG35 citations92
US5596066AJan 21, 1997
Dimeric diol-modified powder coating cross-linking agents containing uretdione groups
BAYER AG32 citations92
US5503714AApr 2, 1996
Chlorine-free multifunctional resins for paper finishing
BAYER AG30 citations92
US5473011ADec 5, 1995
Polyisocyanate mixtures, a process for their preparation and their use as cross-linking agents in coating compositions
BAYER AG22 citations92
US5237058AAug 17, 1993
Polyisocyanates containing uretdione and/or isocyanurate groups, a process for their production
BAYER AG23 citations92
US5143994ASep 1, 1992
Polyisocyanate mixture, a process for its preparation and its use in polyurethane coating compositions
BAYER AG29 citations91
US4772639ASep 20, 1988
Process for the production of molded polyurethane parts
BAYER AG36 citations91
US5750629AMay 12, 1998
Uretdione diisocyanates and a process for their production
BAYER AG17 citations84
US5798431AAug 25, 1998
Process for the production of polyisocyanates containing isocyanurate groups from aliphatic and aromatic isocyanate compounds
BAYER AG17 citations83
US4954577ASep 4, 1990
Lacquer binders, coating compositions and wire enamels based on polyamideimides and isocyanates carrying carbodiimide and/or uretone imine groups
BAYER AG20 citations81
US7098289B2Aug 29, 2006
Isocyanates containing uretdione groups
BAYER AG7 citations74
US6777523B1Aug 17, 2004
Highly functional polyisocyanate mixtures which are dispersible in water
BAYER AG11 citations74
US6590098B2Jul 8, 2003
Method of preparing aliphatic polyisocyanates with uretdione, isocyanurate and iminooxadiazindione structures
BAYER AG9 citations74
US6395925B1May 28, 2002
Process for purifying organic isocyanates, the organic isocyanates so purified and their use
BAYER AG10 citations74
US6043332AMar 28, 2000
Process for the production of light-colored uretdione polyisocyanates
BAYER AG14 citations74
US5739249AApr 14, 1998
Chlorine-free multifunctional resins for paper finishing
BAYER AG10 citations74
US5731396AMar 24, 1998
Water dispersible polyisocyanate mixtures
BAYER AG9 citations74
US5464921ANov 7, 1995
Polyisocyanate mixtures, a process for their production and their use for the production of polyurethanes
BAYER AG17 citations74
US5126479AJun 30, 1992
Process for the production of blocked polyisocyanates containing carbodiimide groups, the polyisocyanates obtainable by this process and their use for the production of plastics
BAYER AG10 citations74
US4900800AFeb 13, 1990
Powder lacquer and its use for coating heat-resistant substrates
BAYER AG17 citations74
US4851531AJul 25, 1989
Isocyanurate group-containing polyisocyanates
BAYER AG10 citations74
US4748242AMay 31, 1988
Tertiary polyisocyanate derivatives
BAYER AG13 citations74
US4481345ANov 6, 1984
Process for the production of combinations of organic polyisocyanates and at least partly blocked polyamines, the combinations obtainable by this process and their use for the production of lacquers, coating or sealing compositions
BAYER AG7 citations74
US6423777B1Jul 23, 2002
Powder coating cross-linking agents of high functionality which contain uretdione groups and free isocyanate groups
BAYER AG9 citations73
US6297343B1Oct 2, 2001
Powder coating crosslinking agents containing uretdione groups and free isocyanate
BAYER AG9 citations73
US5852101ADec 22, 1998
Powder coating compositions and their use for coating heat-resistant substrates
BAYER AG9 citations73
US5811190ASep 22, 1998
Matt polyurethane powder coatings and their use for coating heat resistant substrates
BAYER AG14 citations73
US5208291AMay 4, 1993
Powder coating compositions, a process for their production and their use for coating heat-resistant substrates
BAYER AG7 citations73
US4530990AJul 23, 1985
Process for the preparation of viscosity stable polyurethane solutions
BAYER AG14 citations72
US6222066B1Apr 24, 2001
Process for decreasing the chlorine content of organic isocyanates
BAYER AG6 citations70
BAYER MATERIALSCIENCE AG
5 patentsUS7956209B2Jun 7, 2011
Polyisocyanates containing allophanate and silane groups
BAYER MATERIALSCIENCE AG7 citations84
US7151151B2Dec 19, 2006
Preparation of polyisocyanates containing uretdione groups
BAYER MATERIALSCIENCE AG13 citations84
US7067654B2Jun 27, 2006
Preparation of polyisocyanates containing uretdione groups
BAYER MATERIALSCIENCE AG14 citations84
US7767778B2Aug 3, 2010
Polyurethane powder coating compositions that do not split off blocking agents and have a low stoving temperature
BAYER MATERIALSCIENCE AG11 citations82
US9376403B2Jun 28, 2016
Process for trimerising cycloaliphatic diisocyanates
BAYER MATERIALSCIENCE AG4 citations72
DU PONT
1 patentGRESZTA-FRANZ DOROTA
1 patentCOVESTRO DEUTSCHLAND AG
1 patentShowing the top 50 of 83 patents by PatentIndex Score.