Patents by Inventor Anthony Jay Dias

Anthony Jay Dias has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 9108374
    Abstract: An elastomeric composition for a curing bladder comprises isobutylene based elastomer, curative and a hydrocarbon polymer modifier comprising monomers selected from the group consisting of piperylenes, cyclic pentadienes, aromatics, limonenes, pinenes, amylenes, and combinations thereof, wherein the cyclic pentadienes comprise at least 10 weight percent of the monomers by total weight of the monomers. Also disclosed are a tire curing bladder made from the elastomeric composition, a tire curing press containing the bladder, a method of making the tire curing bladder, an improvement to the process of making the tire curing bladder to improve processability of the mixture and fatigue life and DeMattia cut growth, a method of making a tire using the tire curing bladder, and an improvement to the process of making a tire to extend a pull point of the curing bladder and/or to reduce the curing time for the tire construct.
    Type: Grant
    Filed: August 21, 2012
    Date of Patent: August 18, 2015
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Michael Brendan Rodgers, Anthony Jay Dias, Robert John Claassen, II
  • Patent number: 8980978
    Abstract: The present invention relates to processes to produce nanocomposites. In particular, the invention relates to solution processes using organic solvents and mixtures of solvents to produce polymeric nanocomposites.
    Type: Grant
    Filed: June 28, 2005
    Date of Patent: March 17, 2015
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Weiqing Weng, Anthony Jay Dias, Caiguo Gong, Beverly Jean Poole, Carmen Neagu, Kriss Randall Karp, Molly Westermann Johnston, James Richard Ayers
  • Patent number: 8809455
    Abstract: A dynamically vulcanized alloy contains at least one isobutylene-containing elastomer and at least one thermoplastic resin, wherein the elastomer is present as a dispersed phase of small vulcanized or partially vulcanized particles in a continuous phase of the thermoplastic resin. The dynamically vulcanized alloy also contains an anhydride functionalized oligomer. The alloy maintains a high Shore A hardness value while obtaining improved flowability for processing.
    Type: Grant
    Filed: August 27, 2009
    Date of Patent: August 19, 2014
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Maria D. Ellul, Anthony Jay Dias, Rodney May
  • Patent number: 8765863
    Abstract: A halogenated elastomer partially functionalized with triethylamine, in a mixture with fiiier and a cure package, suitable for use as an air barrier in an innertube or tire innerliner, is disclosed. The halogenated elastomer can be a polymer comprising C4 to C7 isoolefm derived units, para-alkylstyrene derived units, para-(haloalkylstyrene) derived units, and para-(triethylammoniumalkylstyrene) derived units. The Mooney viscosity of the elastomer can be controlled by the degree of triethylamine functionalization. Also disclosed is a method for making an article using the tri ethy iamine-functionalized elastomer.
    Type: Grant
    Filed: November 14, 2007
    Date of Patent: July 1, 2014
    Assignees: ExxonMobil Chemical Patents Inc., Michelin Recherche et Technique S.A.
    Inventors: Brian Bergman, Anthony Jay Dias, Caiguo Gong, Thomas C. Hodge, David John Lohse, Weiqing Weng
  • Patent number: 8653195
    Abstract: An elastomeric composition incorporating a hydrocarbon polymer modifier including piperylene, cyclic pentadiene and aromatic components, and having a softening point from 80° C. to 160° C., z-average molecular weight greater than 10,000, and at least 1 mole percent aromatic hydrogen, based on the total moles of hydrogen in the modifier. In a method, the elastomeric composition is processed with a cure package into a composition in the desired shape, which is cured to form the article. The modifier may optionally be immiscible with an elastomer in the composition and/or co-cured with the elastomer or filler in the composition. A tire or tire component may include the elastomeric composition.
    Type: Grant
    Filed: August 17, 2011
    Date of Patent: February 18, 2014
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Edward J. Blok, Anthony Jay Dias, Robert J. Claassen, II, Thomas R. Barbee
  • Publication number: 20130184397
    Abstract: An elastomeric composition incorporating a hydrocarbon polymer modifier including piperylene, cyclic pentadiene and aromatic components, and having a softening point from 80° C. to 160° C., z-average molecular weight greater than 10,000, and at least 1 mole percent aromatic hydrogen, based on the total moles of hydrogen in the modifier. In a method, the elastomeric composition is processed with a cure package into a composition in the desired shape, which is cured to form the article. The modifier may optionally be immiscible with an elastomer in the composition and/or co-cured with the elastomer or filler in the composition. A tire or tire component may include the elastomeric composition.
    Type: Application
    Filed: August 17, 2011
    Publication date: July 18, 2013
    Applicant: Exxon Chemical Company
    Inventors: Edward J. Blok, Anthony Jay Dias, Robert J. Claassen, II, Thomas R. Barbee
  • Publication number: 20130087953
    Abstract: An elastomeric composition for a curing bladder comprises isobutylene based elastomer, curative and a hydrocarbon polymer modifier comprising monomers selected from the group consisting of piperylenes, cyclic pentadienes, aromatics, limonenes, pinenes, amylenes, and combinations thereof, wherein the cyclic pentadienes comprise at least 10 weight percent of the monomers by total weight of the monomers. Also disclosed are a tire curing bladder made from the elastomeric composition, a tire curing press containing the bladder, a method of making the tire curing bladder, an improvement to the process of making the tire curing bladder to improve processability of the mixture and fatigue life and DeMattia cut growth, a method of making a tire using the tire curing bladder, and an improvement to the process of making a tire to extend a pull point of the curing bladder and/or to reduce the curing time for the tire construct.
    Type: Application
    Filed: August 21, 2012
    Publication date: April 11, 2013
    Inventors: Michael Brendan Rodgers, Anthony Jay Dias, Robert John Claassen, II
  • Patent number: 8399551
    Abstract: An embodiment of the present invention is a nanocomposite comprising a clay and an elastomer comprising at least C2 to C10 olefin derived units; wherein the elastomer also comprises functionalized monomer units pendant to the elastomer. Desirable embodiments of the elastomer include poly(isobutylene-co-p-alkylstyrene) elastomers and poly(isobutylene-co-isoprene) elastomers, which are functionalized by reacting free radical generating agents and unsaturated carboxylic acids, unsaturated esters, unsaturated imides, and the like, with the elastomer. The clay is exfoliated in one embodiment by the addition of exfoliating agents such as alkyl amines and silanes to the clay. The composition can include secondary rubbers such as general purpose rubbers, and curatives, fillers, and the like. The nanocomposites of the invention have improved air barrier properties such as are useful for tire innerliners and innertubes.
    Type: Grant
    Filed: May 30, 2003
    Date of Patent: March 19, 2013
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Caiguo Gong, Anthony Jay Dias, Andy Haishung Tsou, Beverly Jean Poole, Kriss Randall Karp
  • Patent number: 8048947
    Abstract: The present invention provides a nanocomposite of a star branched elastomer and a clay. The nanocomposite can be a mixture of a halogenated star branched elastomer and a clay, desirably an exfoliated clay, suitable for use as an air barrier. The halogenated star-branched elastomer can be the primary halogenated elastomer in the blend, and a ratio of the star-branched elastomer to clay can be from 2:1 to 500:1.
    Type: Grant
    Filed: November 8, 2005
    Date of Patent: November 1, 2011
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Caiguo Gong, Carmen Neagu, Beverly Jean Poole, Anthony Jay Dias, Kriss Randall Karp, Molly Westermann Johnston
  • Publication number: 20110054093
    Abstract: A dynamically vulcanized alloy contains at least one isobutylene-containing elastomer and at least one thermoplastic resin, wherein the elastomer is present as a dispersed phase of small vulcanized or partially vulcanized particles in a continuous phase of the thermoplastic resin. The dynamically vulcanized alloy also contains an anhydride functionalized oligomer. The alloy maintains a high Shore A hardness value while obtaining improved flowability for processing.
    Type: Application
    Filed: August 27, 2009
    Publication date: March 3, 2011
    Inventors: Maria D. Ellul, Anthony Jay Dias, Rodney May
  • Publication number: 20100210779
    Abstract: A halogenated elastomer partially functionalized with triethylamine, in a mixture with fiiier and a cure package, suitable for use as an air barrier in an innertube or tire innerliner, is disclosed. The halogenated elastomer can be a polymer comprising C4 to C7 isoolefm derived units, para-alkylstyrene derived units, para-(haloalkylstyrene) derived units, and para-(triethylammoniumalkylstyrene) derived units. The Mooney viscosity of the elastomer can be controlled by the degree of triethylamine functionalization. Also disclosed is a method for making an article using the tri ethy iamine-functionalized elastomer.
    Type: Application
    Filed: November 14, 2007
    Publication date: August 19, 2010
    Applicants: EXXONMOBIL CHEMICAL PATENTS, INC., MICHELIN RECHERCHE ET TECHNIQUE S.A.
    Inventors: Brian Bergman, Anthony Jay Dias, Caiguo Gong, Thomas C. Hodge, David John Lohse, Weiqing Weng
  • Patent number: 7767743
    Abstract: A branched isobutylene-styrenic elastomer with a broad molecular weight distribution is disclosed comprising an interpolymer of an isoolefin monomer as isobutylene, a styrenic monomer such as p-methylstyrene, and a multiolefin such as divinylbenzene. The elastomer has improved green strength, relaxation characteristics, and processability in melt processing, while retaining excellent aging characteristics and barrier properties, and can be used in a blend with a linear isobutylene-p-alkylstyrene elastomer to improve processability of the linear elastomer. Also disclosed are a method for processing the linear elastomer with an effective amount of the branched elastomer to improve processability, and nanocomposites, curable compositions, cured compositions and useful articles formed from the branched elastomer and the linear-branched elastomer blends.
    Type: Grant
    Filed: March 10, 2006
    Date of Patent: August 3, 2010
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Weiqing Weng, David Y. Chung, Anthony Jay Dias, Yuan-Ju (Ray) Chen, Alan A. Galuska, James R. Ayers
  • Patent number: 7632886
    Abstract: The present invention provides a nanocomposite of an elastomer, a polymer or oligomer functionalized with a polar group, and a clay. The nanocomposite can be a mixture of a halogenated elastomer, an acid or acid anhydride modified polymer, and a clay, desirably an exfoliated clay, suitable for use as an air barrier. Also disclosed is a nanocomposite that can be a mixture of a halogenated elastomer, a polymer modified with a carboxylic acid, and an organoclay.
    Type: Grant
    Filed: December 2, 2005
    Date of Patent: December 15, 2009
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Weiqing Weng, Anthony Jay Dias, Kriss Randall Karp, Molly Westermann Johnston, Caiguo Gong, Carmen Neagu, Beverly Jean Poole
  • Patent number: 7605205
    Abstract: The invention provides for processes for preparing a nanocomposite compositions including the steps of: contacting a multifunctional intercalant including a cationic moiety separated from an anionic moiety by at least 1 carbon, with a clay at a temperature and for a period of time sufficient to produce an at least partially intercalated clay; and contacting the at least partially intercalated clay with a functionalized interpolymer including one or more functional groups, at a temperature, and for a period of time sufficient to produce the nanocomposite compositions. Cured nanocomposite compositions, and articles including such nanocomposite compositions are also provided.
    Type: Grant
    Filed: November 7, 2005
    Date of Patent: October 20, 2009
    Assignee: ExxonMobil Chemical Patents, Inc.
    Inventors: Caiguo Gong, Anthony Jay Dias, Weiqing Weng, Ramanan Krishnamoorti, Carmen Neagu, Molly Westermann Johnston, Beverly Jean Poole, Kriss Randall Karp
  • Patent number: 7514491
    Abstract: A nanocomposite of a halogenated elastomer and an inorganic, exfoliated clay, suitable for use as an air barrier, is disclosed. The halogenated elastomer can be a polymer comprising C4 to C7 isoolefin derived units, para-methylstyrene derived units, and para(halomethylstyrene) derived units, or can be a butyl-type rubber. The nanocomposite can be formed by contacting an aqueous slurry of inorganic clay with a polymer cement while agitating vigorously to form emulsions or micro-emulsions to intimately mix the inorganic clay and the elastomer. The nanocomposite so formed has improved air barrier properties and is suitable for use as an innerliner or innertube.
    Type: Grant
    Filed: July 18, 2005
    Date of Patent: April 7, 2009
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Weiqing Weng, Anthony Jay Dias, Carmen Neagu, Beverly Jean Poole, Caiguo Gong, James Richard Ayers, Kriss Randall Karp, Molly Westermann Johnston
  • Patent number: 7501460
    Abstract: The present invention is a process to produce a nanocomposite of a elastomer and organic clay, e.g. an exfoliated clay, suitable for use as an air barrier. The process can include the steps of: (a) contacting a solution (10) of butyl rubber in an organic solvent with a halogen (12) to form a halogenated butyl rubber solution (16); (b) neutralizing the halogenated butyl rubber solution; (c) functionalizing at least a portion (18) of the halogenated butyl rubber; (d) mixing a dispersion (22) of clay with the functionalized butyl rubber (18) to form a masterbatch (26) comprising a polymer-clay nanocomposite; (e) combining the masterbatch (26) with the rest of the halogenated butyl rubber solution (20) to form a second mixture (28); (e) recovering the nanocomposite from the second mixture (28). The nanocomposite so formed has improved air barrier properties and is suitable for use as a tire innerliner or innertube.
    Type: Grant
    Filed: July 18, 2005
    Date of Patent: March 10, 2009
    Assignee: ExxonMobile Chemical Patents Inc.
    Inventors: Weiqing Weng, Caiguo Gong, Anthony Jay Dias, Robert Norman Webb, James Peter Stokes
  • Patent number: 7491764
    Abstract: The present invention includes blends of a halogenated elastomer such as a butyl rubber or an interpolymer of, on one embodiment, a C4 to C7 isomonoolefin, a para-methylstyrene and a para-(halomethylstyrene), the interpolymer having been pre-mixed with an exfoliating compound and clay, the entire blend forming a nanocomposite in one embodiment. The clay may or may not have undergone an additional exfoliating treatment prior to blending with the halogenated elastomer. The interpolymer/clay mixture forms a distinct phase in the nanocomposite blend of the invention. The blend of the invention has improved air barrier properties and is suitable as an air barrier.
    Type: Grant
    Filed: May 29, 2002
    Date of Patent: February 17, 2009
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Anthony Jay Dias, Andy Haishung Tsou, David Yen-Lung Chung, Weiqing Weng
  • Patent number: 7485677
    Abstract: The present invention is a blend of an halogenated elastomer and a clay, desirably an exfoliated clay, to form a nanocomposite suitable for an air barrier. In one embodiment, the halogenated elastomer is a polymer comprising C4 to C7 isoolefin derived units, a para-methylstyrene derived units, and para-(halomethylstyrene) derived units. In another embodiment, the halogenated elastomer is a butyl-type rubber. The clay may or may not have an additional exfoliating treatment present prior to blending with the interpolymer. The interpolymer/clay mixture forms a distinct phase in the nanocomposite blend of the invention. The blend of the invention has improved air barrier properties and is suitable as an innerliner or innertube.
    Type: Grant
    Filed: May 29, 2002
    Date of Patent: February 3, 2009
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Anthony Jay Dias, Andy Haishung Tsou, David Yen-Lung Chung, Weiqing Weng, Caiguo Gong
  • Patent number: 7425591
    Abstract: The present invention is a composition including an isobutylene-based copolymer and polybutene. The copolymers may be mixed with an exfoliating compound and clay, the entire composition forming a nanocomposite. The clay may or may not have an additional exfoliating treatment present prior to mixing with the interpolymer. The composition of the invention has improved air barrier properties and processing properties, and is suitable as an air barrier. One embodiment of the invention is an elastomeric composition including at least one random copolymer of at least a C4 to C7 isomonoolefin derived unit, at least one filler, and polybutene oil having a number average molecular weight greater than 400. The copolymer may be selected from a halogenated poly(isobutylene-co-p-methylstyrene), a halogenated star-branched butyl rubber, or a halogenated butyl rubber, and mixtures thereof.
    Type: Grant
    Filed: October 16, 2001
    Date of Patent: September 16, 2008
    Assignee: ExxonMobil Chemical Patents Inc
    Inventors: Anthony Jay Dias, Glenn E. Jones, Donald S. Tracey, Walter H. Waddell
  • Patent number: 7407999
    Abstract: The present invention is a blend of a thermoplastic engineering resin and an interpolymer of, on one embodiment, a C4 to C7 isomonoolefin, a para-methylstyrene and a para-(halomethylstyrene), the interpolymer having been pre-mixed with an exfoliated-clay, the entire blend forming a nanocomposite. The resin may or may not have a clay present prior to blending with the interpolymer. The interpolymer/clay mixture forms a distinct phase in the nanocomposite blend of the invention. The blend of the invention has improved air barrier properties and is suitable as an air barrier.
    Type: Grant
    Filed: May 29, 2002
    Date of Patent: August 5, 2008
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Andy Haishung Tsou, Anthony Jay Dias