Inventor

Werner Obrecht

Inventor

Moers, DE

Overview

1984–2021

Patent span

Chemistry

Primary field (CPC C)

Patents· 99 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

C08Lprimary

C08LCompositions of macromolecular compounds21%

C08CTreatment or chemical modification of rubbers16%

C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds14%

C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients10%

B01JChemical or physical processes, e.g. catalysis or colloid chemistry5%

B60CVehicle tyres5%

Y10TTechnical subjects covered by former us classification5%

C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds4%

C08JWorking-up4%

Y02TClimate change mitigation technologies related to transportation3%

PatentTitleYear

10,882,980Process for the production of water and solvent-free hydrogenated nitrile rubbers2021 10,544,234Functionalized copolymer rubber containing nitrile groups2020 10,508,156Catalyst compositions and their use for hydrogenation of nitrile rubber2019 10,500,578Catalyst compositions and their use for hydrogenation of nitrile rubber2019 10,494,467Copolymer rubber containing nitrile groups2019 10,100,132Process for the preparation of polymers containing amino groups employing a heterogeneous iron catalyst2018 10,011,664Functionalized nitrile rubbers and the production thereof2018 9,593,168'Process for degrading nitrile rubbers in the presence of catalysts having an increased activity'2017 9,475,060'Method for disintegrating an elastomer and disintegrator'2016 9,428,592'Partially hydrogenated nitrile rubbers'2016 9,321,910'Microgel-containing vulcanizable composition based on hydrogenated nitrile rubber'2016 9,249,236'Process for the production of water and solvent-free hydrogenated nitrile rubbers'2016 9,115,219'Process for degrading nitrile rubbers in the presence of catalysts having an increased activity'2015 9,034,992'Nitrile rubbers which optionally contain alkylthio terminal groups and which are optionally hydrogenated'2015 8,957,161'Process for reacting chemical compounds in the presence of catalyst systems'2015 8,765,842'Method for producing polymeric solids'2014 8,716,407'Microgel containing vulcanizable composition based on hydrogenated nitrile rubber'2014 8,664,315'Nitrile rubbers which optionally contain alkylthio terminal groups and which are optionally hydrogenated'2014 8,664,340'Nitrile rubbers'2014 8,629,205'Microgels combined with functional additives'2014 8,623,981'Nitrile rubbers which optionally contain alkylthio terminal groups and which are optionally hydrogenated'2014 8,609,782'Process for degrading nitrile rubbers in the presence of catalysts having an increased activity'2013 8,592,512'Carbon nanotubes and organic media containing microgels'2013 8,563,659'Nitrile rubbers'2013 8,536,277'Catalyst systems and their use for metathesis reactions'2013 8,530,584'Process for reacting chemical compounds in the presence of catalyst systems'2013 8,507,398'Catalysts for metathesis reactions'2013 8,389,623'Nitrile rubbers'2013 8,367,231'Polymer electrolyte membrane with functionalized nanoparticles'2013 8,362,154'Metathesis of nitrile rubbers in the presence of transition metal complex catalysts'2013 8,188,187'Microgel-containing thermoplastic elastomer composition'2012 8,173,741'Rubber mixtures with functionalized diene rubbers and with microgels, a production process, and use of the mixtures'2012 8,119,728'Storage-stable, hydroxy-modified microgel latices'2012 8,119,581'Use of crosslinked microgels for modifying the temperature-dependent behavior of non-crosslinkable organic media'2012 8,084,547'Methods for producing rubber mixtures'2011 7,947,782'Microgel-containing vulcanisable composition'2011 7,939,594'Compositions that contain microgels and thickening agents'2011 7,923,518'Nitrile rubbers'2011 7,875,683'Process for the metathetic degradation of nitrile rubber'2011 7,842,732'Microgels in non-crosslinkable organic media'2010 7,803,882'Sulfur-crosslinked hydrogenated vinyl polybutadienes, and use thereof for the production of technical rubber articles having good recovery behavior across a large temperature range'2010 7,737,233'Catalyst systems and their use for metathesis reactions'2010 7,662,889'Process for the metathetic degradation of nitrile rubbers'2010 7,470,750'Method for the degradation of nitrile rubber by metathesis in the presence of ruthenium- or osmium-based catalysts'2008 7,342,084'Peroxidically crosslinked hydrogenated vinylpolybutadienes and their use for production of technical rubber products with good recovery performance over a wide temperature range'2008 7,241,841'Hydrogenated copolymers of unsubstituted and substituted conjugated dienes'2007 7,176,262'Hydrogenated vinyl-polybutadienes'2007 7,134,466'Crosslinked rubber particles modified by amino(meth)acrylate groups'2006 6,908,965'Gel-containing rubber compounds with multifunctional isocyanates and polyols'2005 6,809,146'Rubber mixtures containing silica, carbon black and rubber gel'2004 6,797,780'Microgel-containing rubber compounds with phosphoryl polysulfides and vulcanizates or shaped articles prepared therefrom'2004 6,737,478'Rubber gels and rubber compounds containing phenolic resin adducts'2004 6,734,257'Block copolymer based on conjugated diolefins and polar monomers'2004 6,649,696'Rubber mixtures based on uncrosslinked rubbers and crosslinked rubber particles and multifunctional isocyanates based on polyuret'2003 6,632,888'Isocyanatosilane-and gel-containing rubber mixtures'2003 6,620,886'NBR gels in butyl rubber compounds'2003 6,620,866'Rubber mixtures and vulcanizates containing agglomerated rubber gels'2003 6,605,671'Process for the production of cross-linked rubber particles'2003 6,579,945'Gel-containing rubber mixtures with inorganic peroxides'2003 6,576,731'Polybutadienes with a reduced solution viscosity/mooney viscosity ratio'2003 6,566,465'Method for polymerizing conjugated diolefins (dienes) with catalysts based on vanadium compounds in the presence of vinylaromatic solvents'2003 6,518,369'Rubber mixes containing polyether/diolefin rubbers and use thereof in particular for the production of tires with low rolling resistance'2003 6,399,706'Microgel-containing rubber compounds which comprise sulfur-containing organosilicon compounds'2002 6,372,857'Microgel-containing rubber mixtures with masked bi-functional mercaptans and vulcanization products produced therefrom'2002 6,310,151'Method for polymerizing conjugated diolefins (dienes) with catalysts based on cobalt compounds in the presence of vinylaromatic solvents'2001 6,242,534'Rubber composition, method of formulating and blending the same and article and tires made therefrom'2001 6,207,757'Rubber composition, method of adding and blending the composition and vehicle tire made from the composition'2001 6,184,296'Rubber mixtures containing surface-modified cross-linked rubber gels'2001 6,156,859'Process for producing highly branched polyisoolefins'2000 6,133,364'Rubber composition, method of formulating the composition and vehicle tire made from the composition'2000 6,127,488'Rubber mixtures which contain SBR rubber gels'2000 6,015,841'Initiator systems containing vanadium tetrachloride for the (co)polymerization of isoolefins'2000 5,576,401'Process for the production of gel-free ethylene/vinyl acetate copolymers with a high content of copolymerized vinyl acetate and a high mooney viscosity'1996 5,403,566'Recovery of hydrogenation catalysts from solutions of hydrogenated nitrile rubber'1995 5,395,891'Rubber mixtures containing polybutadiene gel'1995 5,298,580'Process for the production of vulcanizable mercaptan-and/or xanthogen disulfide-regulated polychloroprene rubbers with minimal mold fouling'1994 5,298,577'Continuous process for the production of ethylene/vinyl ester terpolymers'1994 5,220,045'Process for the production of metal carboxylates and their use for the polymerization of monomers suitable for Ziegler-Natta polymerization'1993 5,124,408'Rubber mixtures containing sulfur-modified polychloroprene gel'1992 5,106,260'Method and an apparatus for singling stacked cards'1992 5,093,450'Process for the preparation of ethylene/vinyl acetate copolymers with increased strength, the new ethylene/vinyl acetate copolymers and their use'1992 5,089,579'Process for the production of ethylene-vinyl acetate copolymers, new ethylene/vinyl acetate copolymers and their use'1992 5,071,943'Process for the isolation of tetrachlorobutane and for the production of phenolic resins from mixtures of chlorine-substituted hydrocarbons'1991 5,064,904'Suitable polychloroprene materials for the production of high-damping vulcanisates'1991 5,036,149'Process for the preparation of ethylene/acrylonitrile copolymers, new ethylene/acrylonitrile copolymers and their use'1991 5,026,779'Mixtures of chloroprene polymers'1991 4,963,621'Cross-linkable mixtures based on hydrogenated nitrile rubber and ethylene/acrylonitrile copolymers'1990 4,954,585'Process for the production of sulfur-modified polychloroprene'1990 4,937,303'Solution polymerization for the preparation of gel-free ethylene/vinyl acetate copolymers'1990 4,920,189'Process for the production of toluene-soluble, sulphur-modified chloroprene polymers'1990 4,895,906'Polychloroprene mixtures'1990 4,868,053'Flame resistant, halogen-free thermoplastic polymer compositions'1989 4,826,721'Laminated materials of pretreated fibre material and vulcanization products of hydrogenated nitrile rubber'1989 4,814,401'Polymerization of chloroprene with xanthates and dithiocarbamates'1989 4,791,172'Process for the preparation of partially hydrogenated nitrile rubbers'1988 4,769,407'Elastomeric mass of polychloroprene sol and polychloroprene gel'1988 4,617,605'Carrier element for an IC module'1986 4,605,896'Method of contacting the galvanic contacts of an identification card with an embedded IC-module'1986 4,484,067'Card identification system'1984

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1984–2018Patents assigned to OBRECHT WERNER (22)· patent assignee history

1984–1992Based in Wielenbach, DE· patent location history

1988–2007Patents assigned to BAYER AG (44)· patent assignee history

1988–2021Based in Moers, DE· patent location history

2004–2014Patents assigned to RHEIN CHEMIE RHEINAU GMBH (8)· patent assignee history

2007–2019Patents assigned to LANXESS DEUTSCHLAND GMBH (37)· patent assignee history

2017–2021Patents assigned to ARLANXEO DEUTSCHLAND GMBH (8)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
BAYER AG	44	1988–2007
LANXESS DEUTSCHLAND GMBH	37	2007–2019
OBRECHT WERNERself	22	1984–2018
ARLANXEO DEUTSCHLAND GMBH	8	2017–2021
RHEIN CHEMIE RHEINAU GMBH	8	2004–2014

Locations

Location	Patents	Span
Moers, DE	95	1988–2021
Wielenbach, DE	4	1984–1992