Inventor · disambiguated record
Reinhard Halpaap
Also filed as: HALPAAP REINHARD
83 granted patents·26 pending applications·1,509 citations·filing 1982–2018
99Inventor score
Files withBAYER AG54BAYER MATERIALSCIENCE AG18COVESTRO DEUTSCHLAND AG9LAAS HANS-JOSEF3RICHTER FRANK3
Top patents by PatentIndex Score
109 records- 0198US5252696AWater-dispersible polyisocyanate mixtures, a process for their preparation and their use in two-component aqueous compositionsBAYER AG·Filed 1992·Granted Oct 12, 1993·185 cites·5 claims
- 0297US6767958B2Modified polyisocyanatesBAYER AG·Filed 2001·Granted Jul 27, 2004·88 cites·15 claims
- 0397US6426414B1Polyether-modified polyisocyanate mixtures having improved dispersibility in waterBAYER AG·Filed 1999·Granted Jul 30, 2002·129 cites·16 claims
- 0494US5510444APowder coating compositions and their use for coating heat-resistant substratesBAYER AG·Filed 1995·Granted Apr 23, 1996·86 cites·20 claims
- 0593US5508337APowder coating compositions, a process for their preparation, and their use for the coating of heat resistant substratesBAYER AG·Filed 1994·Granted Apr 16, 1996·63 cites·20 claims
- 0692US7737243B2Highly productive coating composition for automotive refinishingDU PONT·Filed 2007·Granted Jun 15, 2010·12 cites·19 claims
- 0792US6392001B1Process for the production of light-stable polyisocyanates containing allophanate groupsBAYER AG·Filed 1995·Granted May 21, 2002·55 cites·8 claims
- 0892US5821326AProcess for preparing mono and polyaspartatesBAYER AG·Filed 1997·Granted Oct 13, 1998·70 cites·15 claims
- 0992US5623045AProcess for the preparation of coatingsBAYER AG·Filed 1995·Granted Apr 22, 1997·72 cites·11 claims
- 1090US7767778B2Polyurethane powder coating compositions that do not split off blocking agents and have a low stoving temperatureBAYER MATERIALSCIENCE AG·Filed 2005·Granted Aug 3, 2010·11 cites·12 claims
- 1188US10294198B2Method for producing xylylene diisocyanates in the gaseous phaseCOVESTRO DEUTSCHLAND AG·Filed 2015·Granted May 21, 2019·3 cites·12 claims
- 1288US9376403B2Process for trimerising cycloaliphatic diisocyanatesBAYER MATERIALSCIENCE AG·Filed 2013·Granted Jun 28, 2016·4 cites·23 claims
- 1388US7956209B2Polyisocyanates containing allophanate and silane groupsBAYER MATERIALSCIENCE AG·Filed 2008·Granted Jun 7, 2011·7 cites·17 claims
- 1486US7709680B2Preparation of polyisocyanates containing uretdione groups using phosphine catalystsBAYER MATERIALSCIENCE AG·Filed 2008·Granted May 4, 2010·4 cites·5 claims
- 1585US7067654B2Preparation of polyisocyanates containing uretdione groupsBAYER MATERIALSCIENCE AG·Filed 2003·Granted Jun 27, 2006·14 cites·13 claims
- 1685US6281322B1Coating compositions containing alkoxysilanesBAYER AG·Filed 1999·Granted Aug 28, 2001·42 cites·18 claims
- 1785US5847044APolyurethane powder coating compositions which have a low stoving temperatureBAYER AG·Filed 1997·Granted Dec 8, 1998·46 cites·20 claims
- 1885US5503714AChlorine-free multifunctional resins for paper finishingBAYER AG·Filed 1993·Granted Apr 2, 1996·30 cites·4 claims
- 1985US4772639AProcess for the production of molded polyurethane partsBAYER AG·Filed 1988·Granted Sep 20, 1988·36 cites·16 claims
- 2084US8134014B2Preparation of uretdione polyisocyanatesRICHTER FRANK·Filed 2008·Granted Mar 13, 2012·4 cites·3 claims
- 2181US6100326AUse of special isocyanates for preparing aqueous polyurethane coatingsBAYER AG·Filed 1999·Granted Aug 8, 2000·33 cites·17 claims
- 2281US5143994APolyisocyanate mixture, a process for its preparation and its use in polyurethane coating compositionsBAYER AG·Filed 1991·Granted Sep 1, 1992·29 cites·9 claims
- 2380US7919552B2Polyurethane powder lacquerBAYER MATERIALSCIENCE AG·Filed 2007·Granted Apr 5, 2011·4 cites·17 claims
- 2480US6395925B1Process for purifying organic isocyanates, the organic isocyanates so purified and their useBAYER AG·Filed 2000·Granted May 28, 2002·10 cites·10 claims
- 2580US5621064AUretdione powder coating cross-linking agents having a low melt viscosityBAYER AG·Filed 1995·Granted Apr 15, 1997·35 cites·2 claims
- 2679US9458318B2Polyisocyanate mixturesGRESZTA-FRANZ DOROTA·Filed 2011·Granted Oct 4, 2016·3 cites·10 claims
- 2779US8058382B2Uretdione formation in solutionRICHTER FRANK·Filed 2006·Granted Nov 15, 2011·3 cites·11 claims
- 2879US5717091APolycyclic iminooxadiazinediones, their preparation and useBAYER AG·Filed 1996·Granted Feb 10, 1998·24 cites·8 claims
- 2979US5596066ADimeric diol-modified powder coating cross-linking agents containing uretdione groupsBAYER AG·Filed 1996·Granted Jan 21, 1997·32 cites·9 claims
- 3079US5464921APolyisocyanate mixtures, a process for their production and their use for the production of polyurethanesBAYER AG·Filed 1993·Granted Nov 7, 1995·17 cites·1 claims
- 3178US7151151B2Preparation of polyisocyanates containing uretdione groupsBAYER MATERIALSCIENCE AG·Filed 2004·Granted Dec 19, 2006·13 cites·6 claims
- 3278US5237058APolyisocyanates containing uretdione and/or isocyanurate groups, a process for their productionBAYER AG·Filed 1991·Granted Aug 17, 1993·23 cites·10 claims
- 3377US5473011APolyisocyanate mixtures, a process for their preparation and their use as cross-linking agents in coating compositionsBAYER AG·Filed 1992·Granted Dec 5, 1995·22 cites·6 claims
- 3475US10173970B2Method for producing 1,5-pentanediisocyanate in the gas phaseCOVESTRO DEUTSCHLAND AG·Filed 2015·Granted Jan 8, 2019·1 cites·11 claims
- 3575US4954577ALacquer binders, coating compositions and wire enamels based on polyamideimides and isocyanates carrying carbodiimide and/or uretone imine groupsBAYER AG·Filed 1988·Granted Sep 4, 1990·20 cites·6 claims
- 3674US6777523B1Highly functional polyisocyanate mixtures which are dispersible in waterBAYER AG·Filed 2000·Granted Aug 17, 2004·11 cites·12 claims
- 3774US5750629AUretdione diisocyanates and a process for their productionBAYER AG·Filed 1997·Granted May 12, 1998·17 cites·20 claims
- 3873US9790194B2Process for continuous isocyanate modificationCOVESTRO DEUTSCHLAND AG·Filed 2012·Granted Oct 17, 2017·2 cites·14 claims
- 3973US9278906B2Process for hydrogenating aromatic di- and polyamines to cycloaliphatic di- and polyaminesBAYER MATERIALSCIENCE AG·Filed 2015·Granted Mar 8, 2016·1 cites·14 claims
- 4072US10676448B2Method for producing TDI-trimerisates with high purityCOVESTRO DEUTSCHLAND AG·Filed 2018·Granted Jun 9, 2020·0 cites·8 claims
- 4172US6590098B2Method of preparing aliphatic polyisocyanates with uretdione, isocyanurate and iminooxadiazindione structuresBAYER AG·Filed 2002·Granted Jul 8, 2003·9 cites·8 claims
- 4271US8097691B2Preparation of polyisocyanates of the trimer typeRICHTER FRANK·Filed 2009·Granted Jan 17, 2012·2 cites·5 claims
- 4371US7098289B2Isocyanates containing uretdione groupsBAYER AG·Filed 2003·Granted Aug 29, 2006·7 cites·6 claims
- 4470US6423777B1Powder coating cross-linking agents of high functionality which contain uretdione groups and free isocyanate groupsBAYER AG·Filed 2000·Granted Jul 23, 2002·9 cites·6 claims
- 4570US6297343B1Powder coating crosslinking agents containing uretdione groups and free isocyanateBAYER AG·Filed 2000·Granted Oct 2, 2001·9 cites·8 claims
- 4670US6222066B1Process for decreasing the chlorine content of organic isocyanatesBAYER AG·Filed 2000·Granted Apr 24, 2001·6 cites·10 claims
- 4770US4900800APowder lacquer and its use for coating heat-resistant substratesBAYER AG·Filed 1987·Granted Feb 13, 1990·17 cites·3 claims
- 4868US7060817B2Sulfonamide anions as catalysts for NCO oligomerizationBAYER MATERIALSCIENCE AG·Filed 2004·Granted Jun 13, 2006·3 cites·4 claims
- 4967US10329248B2Method for producing 1,5-pentanediisocyanate in the gas phaseCOVESTRO DEUTSCHLAND AG·Filed 2018·Granted Jun 25, 2019·0 cites·11 claims
- 5067US10189945B2Method for producing light-coloured TDI-polyisocyanatesCOVESTRO DEUTSCHLAND AG·Filed 2014·Granted Jan 29, 2019·0 cites·11 claims
Showing the top 50 of 109 patent records by PatentIndex Score.
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