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Juchen, DE
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Patents Grants
last 30 patents
Information
Patent Grant
Polyester polyols made of isophthalic acid and/or terephthalic acid...
Patent number
9,605,106
Issue date
Mar 28, 2017
Covestro Deutschland AG
Hartmut Nefzger
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for the preparation of polyricinoleic acid ester polyols ha...
Patent number
9,328,196
Issue date
May 3, 2016
Bayer MaterialScience AG
Hartmut Nefzger
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for producing polyester polyols having secondary OH end groups
Patent number
9,193,822
Issue date
Nov 24, 2015
Bayer MaterialScience AG
Hartmut Nefzger
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for the preparation of a polyurethane polymer with secondar...
Patent number
9,139,685
Issue date
Sep 22, 2015
Bayer MaterialScience AG
Hartmut Nefzger
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for producing polyether polyols having primary hydroxyl end...
Patent number
9,029,495
Issue date
May 12, 2015
Bayer MaterialScience AG
Hartmut Nefzger
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Aliphatic, sinterable, thermoplastic polyurethane molding compositi...
Patent number
8,697,830
Issue date
Apr 15, 2014
Bayer MaterialScience AG
Henricus Peerlings
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Method for producing polyester polyols having low amounts of dioxan...
Patent number
8,592,623
Issue date
Nov 26, 2013
Bayer MaterialScience AG
Rolf Roers
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for the production of polyester polyols with low volumes of...
Patent number
8,481,606
Issue date
Jul 9, 2013
Bayer MaterialScience AG
Hartmut Nefzger
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Polyester polyols from terephthalic acid and oligoalkylene oxides
Patent number
8,334,035
Issue date
Dec 18, 2012
Bayer MaterialScience AG
Hartmut Nefzger
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for the production of stable polymers
Patent number
8,110,704
Issue date
Feb 7, 2012
Bayer MaterialScience LLC
James Michael Barnes
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Polymer dispersions in polyester polyols
Patent number
7,893,150
Issue date
Feb 22, 2011
Bayer MaterialScience AG
Hartmut Nefzger
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Polymer dispersions in polyester polyols
Patent number
7,772,321
Issue date
Aug 10, 2010
Bayer MaterialScience AG
Hartmut Nefzger
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Polyester polyols, a process for the production thereof and the use...
Patent number
7,763,683
Issue date
Jul 27, 2010
Bayer MaterialScience AG
Hartmut Nefzger
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for preparing oligomeric aliphatic diols, polycarbonatediol...
Patent number
6,977,290
Issue date
Dec 20, 2005
Bayer Aktiengesellschaft
Hartmut Nefzger
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Titanium/zirconium catalysts and their use to prepare esters or pol...
Patent number
6,541,411
Issue date
Apr 1, 2003
Bayer Aktiengesellschaft
Andreas Hoffmann
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Patents Applications
last 30 patents
Information
Patent Application
METHOD FOR PRODUCING FLEXIBLE POLYURETHANE FOAMS
Publication number
20130345330
Publication date
Dec 26, 2013
Bayer Intellectual Property GmbH
Hartmut Nefzger
C07 - ORGANIC CHEMISTRY
Information
Patent Application
PROCESS FOR THE PREPARATION OF POLYRICINOLEIC ACID ESTER POLYOLS HA...
Publication number
20130261205
Publication date
Oct 3, 2013
Bater Intellectual Property GmbH
Hartmut Nefzger
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
METHOD FOR THE PRODUCTION OF POLYETHER POLYOLS COMPRISING TERMINAL...
Publication number
20120196999
Publication date
Aug 2, 2012
Bayer MaterialScienceAG
Hartmut Nefzger
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
PROCESS FOR PRODUCING POLYESTER POLYOLS WITH LOW QUANTITIES OF DIOX...
Publication number
20120129966
Publication date
May 24, 2012
Bayer MaterialScience AG
Hartmut Nefzger
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
PROCESS FOR THE PREPARATION OF A POLYURETHANE POLYMER WITH SECONDAR...
Publication number
20120123008
Publication date
May 17, 2012
Bayer MaterialScience AG
Hartmut Nefzger
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
POLYESTER POLYOLS MADE OF ISOPHTHALIC ACID AND/OR TEREPHTHALIC ACID...
Publication number
20120123009
Publication date
May 17, 2012
Bayer Material Science AG
Hartmut Nefzger
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
PROCESS FOR PRODUCING POLYESTER POLYOLS HAVING SECONDARY OH END GROUPS
Publication number
20120116114
Publication date
May 10, 2012
Bayer MaterialScience AG
Hartmut Nefzger
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
POLYESTER POLYOLS FROM TEREPHTHALIC ACID AND OLIGOALKYL OXIDES
Publication number
20120052228
Publication date
Mar 1, 2012
Bayer MaterialScience AG
Hartmut Nefzger
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
PROCESS FOR THE PRODUCTION OF POLYESTER POLYOLS WITH LOW VOLUMES OF...
Publication number
20110237697
Publication date
Sep 29, 2011
Bayer MaterialScience AG
Hartmut Nefzger
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
METHOD FOR PRODUCING POLYESTER POLYOLS HAVING LOW AMOUNTS OF DIOXAN...
Publication number
20110236671
Publication date
Sep 29, 2011
Bayer Material Science AG
Rolf Roers
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
POLYMER DISPERSIONS IN POLYESTER POLYOLS
Publication number
20100280212
Publication date
Nov 4, 2010
Bayer MaterialScience AG
Hartmut Nefzger
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Impression Compounds
Publication number
20100022739
Publication date
Jan 28, 2010
Heraeus Kulzer GmbH
Hartmut Nefzger
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Molding Compositions
Publication number
20080146695
Publication date
Jun 19, 2008
Hartmut Nefzger
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Process for the production of stable polymers
Publication number
20080108776
Publication date
May 8, 2008
James Michael Barnes
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Polyester polyols, a process for the production thereof and the use...
Publication number
20080090973
Publication date
Apr 17, 2008
Hartmut Nefzger
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Aliphatic, sinterable, thermoplastic polyurethane molding compositi...
Publication number
20070265413
Publication date
Nov 15, 2007
Henricus Peerlings
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Poly(urethane carbonate)polyols
Publication number
20060205912
Publication date
Sep 14, 2006
Bayer MaterialScience AG
Hartmut Nefzger
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Polymer dispersions in polyester polyols
Publication number
20060135727
Publication date
Jun 22, 2006
Bayer MaterialScience AG
Hartmut Nefzger
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Polymer dispersions in polyesterpolyols
Publication number
20050137275
Publication date
Jun 23, 2005
Bayer MaterialScience AG
Hartmut Nefzger
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Polymer dispersions in polyesterpolyols
Publication number
20050131137
Publication date
Jun 16, 2005
Hartmut Nefzger
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Polymer dispersions in polyester polyols
Publication number
20050027067
Publication date
Feb 3, 2005
Hartmut Nefzger
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Process for preparing oligomeric aliphatic diols, polycarbonatediol...
Publication number
20040152861
Publication date
Aug 5, 2004
Hartmut Nefzger
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Titanium/zirconium catalysts and their use to prepare esters or pol...
Publication number
20020107143
Publication date
Aug 8, 2002
Andreas Hoffmann
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL