Patents Assigned to Lanxess, Inc.
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Patent number: 8258230Abstract: The present invention relates to arborescent polymers and to a process for making same. In one embodiment, the present invention relates to arborescent polymers formed from at least one inimer and at least one isoolefin that have been end-functionalized with a polymer or copolymer having a low glass transition temperature (Tg), and to a process for making such arborescent polymers. In another embodiment, the present invention relates to arborescent polymers formed from at least one inimer and at least one isoolefin that have been end-functionalized with less than about 5 weight percent end blocks derived from a polymer or copolymer having a high glass transition temperature (Tg), and to a process for making such arborescent polymers.Type: GrantFiled: August 31, 2007Date of Patent: September 4, 2012Assignees: The University of Akron, Lanxess, Inc.Inventors: Gabor Kaszas, Judit Puskas, Kevin Kulbaba, Robert Lloyd Nelson
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Publication number: 20120178848Abstract: The invention relates to the use of butyl ionomers or partially halogenated butyl ionomers in reducing a population of and/or preventing accumulation of organisms. The organisms may be bacteria, algae, fungi, mollusca or arthropoda. The invention also relates to coatings for shaped articles comprising the butyl ionomers.Type: ApplicationFiled: February 5, 2010Publication date: July 12, 2012Applicant: LANXESS INC.Inventors: Dana Adkinson, Lorenzo P. Ferrari, J. Scott Parent, Ralph A. Whitney, Rui Resendes
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Patent number: 8198379Abstract: The present invention relates to the modification of butyl elastomers, particularly halobutyl elastomers, under solvent free conditions with a phase transfer catalyst in the presence of an alkyl metal salt of an oxygen or sulfur-based nucleophile.Type: GrantFiled: August 2, 2006Date of Patent: June 12, 2012Assignee: LANXESS Inc.Inventors: John Scott Parent, Ralph Allen Whitney, Sergio A. Guillén-Castellanos, Rui Resendes
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Publication number: 20120059074Abstract: The present invention relates to processes for recycling articles made from butyl ionomers and processes for producing recycled butyl ionomers. The invention further relates to composites comprising recycled butyl ionomers and fillers and articles made from recycled butyl ionomers. The invention also relates to uncured filled articles made from butyl ionomers having certain physical properties. Exemplary fillers include silica, carbon black, talc and clay, particularly onium substituted high aspect ratio nanoclays.Type: ApplicationFiled: February 5, 2010Publication date: March 8, 2012Applicant: LANXESS INC.Inventors: Dana Adkinson, Rayner Krista, Kevin Kulbaba
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Patent number: 8084548Abstract: The present invention relates to a process for the hydrogenation of the carbon-carbon double bonds in diene-based polymers in bulk form by treatment of said diene-based polymer with hydrogen in the presence of an iridium containing catalyst and in the absence of any organic solvent.Type: GrantFiled: December 16, 2008Date of Patent: December 27, 2011Assignee: LANXESS Inc.Inventors: Qinmin Pan, Garry Rempel, Jialong Wu
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Publication number: 20110301281Abstract: The present invention relates to arborescent polymers and to a process for making same. In one embodiment, the present invention relates to arborescent polymers formed from at least one inimer and at least one isoolefin that have been end-functionalized with a polymer or copolymer having a low glass transition temperature (Tg), and to a process for making such arborescent polymers. In another embodiment, the present invention relates to arborescent polymers formed from at least one inimer and at least one isoolefin that have been end-functionalized with less than about 5 weight percent end blocks derived from a polymer or copolymer having a high glass transition temperature (Tg), and to a process for making such arborescent polymers.Type: ApplicationFiled: August 16, 2011Publication date: December 8, 2011Applicant: LANXESS, INC.Inventors: Gabor Kaszas, Kevin Kulbaba
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Patent number: 8071668Abstract: Rubber compounds containing a halobutyl elastomer, at least one additional elastomer, a mineral filler and at least a three component mixed modifier system comprising a silane compound, a phosphine compound and an additive containing at least one hydroxyl group and a functional group containing a basic amine. A process for preparing the compounds is also disclosed. The compounds are particularly useful in tire treads and exhibit improved processability, traction, rolling resistance and wear properties.Type: GrantFiled: October 16, 2008Date of Patent: December 6, 2011Assignee: LANXESS Inc.Inventors: Ezio Campomizzi, Ralf-Ingo Schenkel, Lionel Cho-Young, Kevin Kulbaba
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Publication number: 20110251320Abstract: An elastomeric composition containing a rubber polymer, an acid acceptor, and a silane-modified needle-like/acircular mineral additive. Compositions according to the present invention have superior heat resistance, compression set resistance, and improved processability (lower compound Mooney) compared to known rubber compositions.Type: ApplicationFiled: September 11, 2009Publication date: October 13, 2011Applicant: LANXESS INC.Inventors: Victor Nasreddine, Sharon Guo
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Patent number: 8026325Abstract: A co-polymer of isobutene and 4-bromo-3-methyl-1-butene formed by direct co-polymerization in a single-step process. A continuous process for forming the co-polymer preferably comprises periodic or semi-continuous addition of catalyst to a mixed monomer solution. Semi-continuous reverse addition of the mixed monomer solution to a pre-provided catalyst solution may also be employed. The co-polymer exhibits allylic bromide functionality and is advantageously curable by either ZnO curing systems or sulfur-based curing systems.Type: GrantFiled: July 31, 2007Date of Patent: September 27, 2011Assignee: Lanxess Inc.Inventor: Judit E Puskas
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Publication number: 20110184087Abstract: Rubber compounds containing a halobutyl elastomer, at least one additional elastomer, a mineral filler and at least a three component mixed modifier system comprising a silane compound, a phosphine compound and an additive containing at least one hydroxyl group and a functional group containing a basic amine. A process for preparing the compounds is also disclosed. The compounds are particularly useful in tire treads and exhibit improved processability, traction, rolling resistance and wear properties.Type: ApplicationFiled: April 5, 2011Publication date: July 28, 2011Applicant: LANXESS INC.Inventors: Ezio Campomizzi, Ralf-Ingo Schenkel, Lionel Cho-Young, Kevin Kulbaba
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Publication number: 20110150712Abstract: In an isoolefin-diolefin rubber production process (e.g. a butyl rubber production process), the cold rubber slurry produced in the reaction vessel is transported from the reaction vessel to the flash tank during which time the cold slurry may be expressed to separate at least part of the cold liquid reaction medium from the isoolefin-diolefin rubber. The separated cold liquid reaction medium is transported off stream, for example by a mechanical filter, where it can be recycled back into the reaction vessel and/or where it can be used to cool a feed stream or streams of the reaction components. The isoolefin-diolefin rubber and the residual liquid reaction medium are transported to a flash tank for further processing. The ability to separate and recycle cold liquid reaction medium makes the process more economical.Type: ApplicationFiled: December 16, 2010Publication date: June 23, 2011Applicant: LANXESS INC.Inventors: John Lovegrove, Hans-Juergen Mick
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Patent number: 7960491Abstract: In an isoolefin-diolefin rubber production process (e.g. a butyl rubber production process), the cold rubber slurry produced in the reaction vessel is transported from the reaction vessel to the flash tank during which time the cold slurry may be expressed to separate at least part of the cold liquid reaction medium from the isoolefin-diolefin rubber. The separated cold liquid reaction medium is transported off stream, for example by a mechanical filter, where it can be recycled back into the reaction vessel and/or where it can be used to cool a feed stream or streams of the reaction components. The isoolefin-diolefin rubber and the residual liquid reaction medium are transported to a flash tank for further processing. The ability to separate and recycle cold liquid reaction medium makes the process more economical.Type: GrantFiled: October 27, 2009Date of Patent: June 14, 2011Assignee: LANXESS Inc.Inventors: John Lovegrove, Hans-Juergen Mick
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Patent number: 7951875Abstract: The present invention relates to hydrogenated nitrile rubber polymers having lower molecular weights and narrower molecular weight distributions than those known in the art.Type: GrantFiled: June 1, 2010Date of Patent: May 31, 2011Assignee: LANXESS Inc.Inventors: Frederic Guerin, Sharon X. Guo, Zsolt Szentivanyi, Stephan Glander
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Patent number: 7947782Abstract: The present invention concerns a vulcanizable composition, vulcanized products produced from it, and their use in particular in the production of golf balls or roll coverings.Type: GrantFiled: May 15, 2006Date of Patent: May 24, 2011Assignees: Rhein Chemie Rheinau GmbH, LANXESS Deutschland GmbH, LANXESS Inc.Inventors: Judy E. Hannay, Thomas Früh, Werner Obrecht
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Patent number: 7931873Abstract: In an isoolefin-diolefin rubber production process (e.g. a butyl rubber production process), the cold rubber slurry produced in the reaction vessel is transported from the reaction vessel to the flash tank during which time the cold slurry may be expressed to separate at least part of the cold liquid reaction medium from the isoolefin-diolefin rubber. The separated cold liquid reaction medium is transported off stream, for example by a mechanical filter, where it can be recycled back into the reaction vessel and/or where it can be used to cool a feed stream or streams of the reaction components. The isoolefin-diolefin rubber and the residual liquid reaction medium are transported to a flash tank for further processing. The ability to separate and recycle cold liquid reaction medium makes the process more economical.Type: GrantFiled: February 16, 2005Date of Patent: April 26, 2011Assignee: LANXESS Inc.Inventors: John Lovegrove, Hans-Juergen Mick
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Patent number: 7919563Abstract: The present invention relates to the process for preparing hydrogenated nitrile rubber polymers having lower molecular weights and narrower molecular weight distributions than those known in the art.Type: GrantFiled: June 1, 2010Date of Patent: April 5, 2011Assignee: Lanxess Inc.Inventors: Frederic Guerin, Sharon X. Guo, Zsolt Szentivanyi, Stephan Glander
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Publication number: 20110077326Abstract: The present invention provides a process for preparing a filled halobutyl elastomer, which includes mixing a halobutyl elastomer, mineral filler and a silylated additive. The present invention also provides a filled halobutyl elastomer containing a mineral filler and a silylated additive.Type: ApplicationFiled: September 29, 2010Publication date: March 31, 2011Applicant: LANXESS INC.Inventors: Rui Resendes, Janice Nicole Hickey
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Patent number: 7915333Abstract: The invention relates to nanocomposites and processes for making nanocomposites comprising butyl rubber ionomers having at least 3.5 mol % of repeating units derived from a multiolefin monomer, such as isoprene. More particularly, the invention relates to butyl rubber ionomer nanocomposites comprising high aspect ratio fillers. In one preferred aspect of the invention, the nanocomposites comprise ionomers that are generated in situ during formation of the nanocomposite, leading to intercalation of the ionomer with the nanocomposite. Nanocomposites according to the present invention exhibit improved impermeability and tensile properties as compared with prior art nanocomposites made using conventional brominated butyl rubber.Type: GrantFiled: October 5, 2007Date of Patent: March 29, 2011Assignee: Lanxess Inc.Inventors: Rui Resendes, Dana Adkinson
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Patent number: 7897695Abstract: The present invention relates to a process for the selective hydrogenation of the carbon-carbon double bonds in diene-based polymers in bulk form by treatment of the polymer with hydrogen in the presence of a platinum group metal containing catalyst and in the absence of any organic solvent.Type: GrantFiled: December 16, 2008Date of Patent: March 1, 2011Assignee: LANXESS Inc.Inventors: Qinmin Pan, Garry Rempel, Jialong Wu
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Patent number: 7868100Abstract: A halogenated butyl polymer having improved properties, the butyl polymer derived from a monomer mixture comprising a C4 to C8 monoolefin monomer, a C4 to C14 multiolefin monomer and a styrenic monomer with a catalyst system to produce the butyl polymer. The improved properties include faster cure, higher maximum torque, higher delta torque, relatively stable modulus over time, improved hot air aging properties and improved aged flexure properties. These improved properties are believed to result from direct interaction between the styrenic moieties in the polymer backbone with a crosslinking agent added to vulcanize the halogenated butyl rubber.Type: GrantFiled: June 25, 2008Date of Patent: January 11, 2011Assignee: LANXESS Inc.Inventor: Gabor Kaszas