Solid Polymer Derived From Ethylenic Reactants Only, At Least One Of Which Is Propylene Patents (Class 524/70)
  • Patent number: 9187650
    Abstract: A conductive polymer corrosion protective composite is provided which may be used as a coating for imparting corrosion protection to structures such as turbine engine components. The composite comprises an organic-inorganic component and corrosion inhibitive pigments comprising an anodic corrosion inhibitor and a cathodic corrosion inhibitor. The anodic corrosion inhibitor may be selected from the group consisting of compounds of vanadium, molybdenum, tungsten, and mixtures thereof. The cathodic corrosion inhibitor may be selected from the group consisting of cerium, neodymium, praseodymium, and mixtures thereof.
    Type: Grant
    Filed: November 2, 2007
    Date of Patent: November 17, 2015
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: Mark R. Jaworowski, Sarah Arsenault, James T. Beals
  • Publication number: 20150087734
    Abstract: The present invention relates to a method for preparing an industrial asphalt comprising sparging an oxygen containing gas through an asphalt flux in the presence of 0.25 weight percent to about 12 weight percent of a highly saturated rubbery polymer at a temperature within the range of about 400° F. to about 550° F. for a period of time which is sufficient to increase the softening point of the asphalt flux to a value which is within the range of 185° F. to 250° F. and a penetration value of at least 15 dmm to produce the industrial asphalt. The highly saturated rubbery polymer can be a styrene-ethylene/butylene-styrene block copolymer rubber or a highly saturated styrene-ethylene/propylene-styrene block copolymer rubber.
    Type: Application
    Filed: November 26, 2014
    Publication date: March 26, 2015
    Applicant: BUILDING MATERIAL INVESTMENT CORPORATION
    Inventors: Keith Edward Stephens, Nicholas R. Soto, Denis Muki Tibah
  • Patent number: 8841365
    Abstract: Straight run bitumen is widely used in the production of built-structure waterproofing systems, more particularly waterproofing membranes. In order to be able to obtain supplies of straight run bitumen wherever it is obtainable at favorable prices, it would have to be transported over relatively long distances. Since straight run bitumen is viscid at ambient temperature, it would have to be transported hot, which is not possible with conventional straight run bitumen. According to the invention, the straight run bitumen is admixed with a small proportion of at least one hydrocarbonaceous polymer. This solidifies straight run bitumen at ambient temperatures, making it transportable cold in the solid state.
    Type: Grant
    Filed: December 12, 2008
    Date of Patent: September 23, 2014
    Assignee: Bertram Haupt
    Inventors: Taieb Marzouki, Bertram Haupt
  • Patent number: 8784554
    Abstract: Asphalt compositions and products comprising petroleum asphalt, polyolefin, and a wax.
    Type: Grant
    Filed: December 5, 2011
    Date of Patent: July 22, 2014
    Inventors: Premnathan Naidoo, Patrick Keating
  • Patent number: 8772380
    Abstract: Disclosed herein are an asphalt concrete mixture, an asphalt binder composition, and methods of preparing the related compositions. The asphalt binder compositions include a polyphosphoric acid, a macromolecular polymer having a saturated backbone with macromolecular modifications, and sulfur. The compositions are capable of being performance graded.
    Type: Grant
    Filed: November 3, 2010
    Date of Patent: July 8, 2014
    Assignee: Saudi Arabian Oil Company
    Inventors: Milind M. Vaidya, Anwar H. Khawajah, Rashid M. Othman, Laurand Lewandowski
  • Patent number: 8702857
    Abstract: A method for rejuvenating a bitumen containing compositions includes adding to the bitumen containing compositions a distillation residue of cashew nut shell liquid (CNSL). The distillation residue may be obtained by distillation of cashew nut shell liquid up to a temperature of between 250 and 350° C. The bitumen containing composition may be selected from: bitumen, asphalt, roof covering, insulating material, shore covering material, and anti-drum plates.
    Type: Grant
    Filed: January 21, 2010
    Date of Patent: April 22, 2014
    Assignee: Van Weezenbeek Specialties B.V.
    Inventors: Jeroen Berend Venema, Antonius Caspar Johannes Eijkenboom, Koen Dimitri van Weezenbeek, Sebastiaan Joannes van Weezenbeek
  • Publication number: 20140080947
    Abstract: Straight run bitumen is widely used in the production of built-structure waterproofing systems, more particularly waterproofing membranes. In order to be able to obtain supplies of straight run bitumen wherever it is obtainable at favorable prices, it would have to be transported over relatively long distances. Since straight run bitumen is viscid at ambient temperature, it would have to be transported hot, which is not possible with conventional straight run bitumen. According to the invention, the straight run bitumen is admixed with a small proportion of at least one hydrocarbonaceous polymer. This solidifies straight run bitumen at ambient temperatures, making it transportable cold in the solid state.
    Type: Application
    Filed: December 12, 2008
    Publication date: March 20, 2014
    Inventors: Taieb Marzouki, Bertram Haupt
  • Publication number: 20140069297
    Abstract: A non-blown roofing grade bitumen composition comprising bitumen feedstock, polyolefin having a molecular weight of from about 800 to about 50,000 g/mol, and optionally one or more additives, wherein the softening point of the composition is above 70° C. as determined according to method ASTM D36 and the penetration of the composition is at least about 12 dmm at 25° C. as determined according to method ASTM D5. A method of making the same.
    Type: Application
    Filed: September 5, 2013
    Publication date: March 13, 2014
    Applicant: Honeywell International Inc.
    Inventors: Steven L. Rotz, Scott Hacker, Yonghong Ruan
  • Patent number: 8664302
    Abstract: A process of preparing a polymer modified asphalt (PMA) comprising mixing a predetermined amount of a polymer-asphalt master batch with a predetermined amount of an asphalt-cross linking agent blend. The polymer-asphalt master batch comprises at least one polymer and a first asphalt. The asphalt-cross linking agent blend comprises a second asphalt and at least one cross linking agent. A predetermined amount of the polymer-asphalt master batch is blended with a predetermined amount of the asphalt-cross linking agent blend to form a PMA blend. Mixing of the PMA blend is performed without substantial delay following blending of the polymer-asphalt master batch with the asphalt-cross linking agent blend.
    Type: Grant
    Filed: September 30, 2008
    Date of Patent: March 4, 2014
    Assignee: Husky Oil Operations Limited
    Inventors: Susanna Ho, Daryl MacLeod, James Brown, Lloyd Gee, Ludo Zanzotto
  • Patent number: 8664303
    Abstract: In a first aspect, bituminous asphalt binder materials which are modified by the addition of crumb rubber or ground tire rubber are described. In a second aspect, the present invention is directed to methods of producing a modified asphalt binder containing crumb rubber or ground tire rubber. The modified asphalt binders comprise neat asphalt, crumb rubber, one or more synthetic polymers, and one or more acids. The crumb rubber may be obtained from recycled truck and/or automobile tires.
    Type: Grant
    Filed: October 29, 2008
    Date of Patent: March 4, 2014
    Assignee: Innophos, Inc.
    Inventor: Jean-Valery Martin
  • Patent number: 8652246
    Abstract: A viscous composition for making a layer and/or a coating for a road track or a building, and containing a viscous fraction. The viscous fraction mainly contains vegetable pitch, in particular tall oil pitch, and a phenolic modified rosin.
    Type: Grant
    Filed: April 21, 2008
    Date of Patent: February 18, 2014
    Assignee: Eiffage Travaux Publics
    Inventors: Jean-Pierre Antoine, Jéròme Marcilloux
  • Publication number: 20130123396
    Abstract: A polymer-modified bitumen (PMB) compound for a bituminous covering layer of a roof sheet, predominantly including a distillation bitumen, in particular one which may contain a synthetic rubber filler in the form of SBS (styrene-butadiene-styrene) in an amount which modifies the properties of the distillation bitumen, wherein an additive which further modifies the bitumen is present in the form of a polymer, wherein the SBS-modified bitumen further modified by the additive has properties in respect of a softening point and penetration, wherein the polymer is polyethylene present in an amount ranging from 2.5 wt.-% to 7.5 wt.-%, the softening point is in a range between 70° C. and 170° C., and the penetration value is between 99 and 30 1/10 mm.
    Type: Application
    Filed: May 16, 2012
    Publication date: May 16, 2013
    Applicant: W. Quandt GmbH & Co. KG Dachbahnen-und Dachstoff-Fabrik
    Inventor: Jan-Niels Pochert
  • Patent number: 8227520
    Abstract: A silicone rubber sponge emulsion composition comprising (A) (a) a liquid diorganopolysiloxane having at least two alkenyl groups per molecule, or a paste-like mixture of (a) a liquid diorganopolysiloxane having at least two alkenyl groups per molecule and (d) a reinforcing filler, (b) an organopolysiloxane having at least two silicon-bonded hydrogen atoms per molecule, and (c) a platinum catalyst, (B) an aqueous solution of a water-soluble polymer, and (C) an emulsifying agent; its production; and production of silicone rubber sponge, wherein silicone rubber sponge is obtained by curing the composition into a molding and heating the molding.
    Type: Grant
    Filed: March 5, 2004
    Date of Patent: July 24, 2012
    Assignee: Dow Corning Toray Company, Ltd.
    Inventors: Shinya Shirasaki, Tadanori Fukamachi, Mitsuo Hamada
  • Patent number: 8202922
    Abstract: The disclosure relates to a method of preparing crosslinked bitumen/polymer compositions having reduced emissions of hydrogen sulphide, in which, while operating at temperatures between 100° C. and 230° C. and with stirring, for a duration of at least ten minutes, at least one bitumen or mixture of bitumens is brought into contact with at least one polymer and at least one crosslinking agent, said crosslinking agent being represented by the general formula HS—R—SH where R represents a saturated or unsaturated, linear or branched, cyclic and/or aromatic hydrocarbon-based group having 2 to 40 carbon atoms, optionally comprising one or more heteroatoms, and that does not comprise a C?O carbonyl function and/or a O—C?O carboxylate function.
    Type: Grant
    Filed: April 6, 2009
    Date of Patent: June 19, 2012
    Assignee: Total Raffinage Marketing
    Inventors: Romuald Botel, Sylvia Dreessen, Pierre Chaverot, Charlotte Godivier
  • Publication number: 20120108708
    Abstract: Disclosed herein are an asphalt concrete mixture, an asphalt binder composition, and methods of preparing the related compositions. The asphalt binder compositions include a polyphosphoric acid, a macromolecular polymer having a saturated backbone with macromolecular modifications, and sulfur. The compositions are capable of being performance graded.
    Type: Application
    Filed: November 3, 2010
    Publication date: May 3, 2012
    Applicant: Saudi Arabian Oil Company
    Inventors: Milind M. Vaidya, Anwar H. Khawajah, Rashid M. Othman, Laurand Lewandowski
  • Patent number: 8138242
    Abstract: Bituminous paving mixtures containing lubricating agents or additives may be prepared at hot mix temperatures and cooled, paved and compacted at temperatures 10-55 Celsius degrees lower than the hot mix temperatures. The increased temperature range between the hot mix temperatures and the paving and compacting temperatures is facilitated by the improved compacting properties of the paving mixture when it includes the lubricating agents or additives.
    Type: Grant
    Filed: March 2, 2011
    Date of Patent: March 20, 2012
    Assignee: A.L.M. Holding Company
    Inventors: Gerald H. Reinke, Gaylon L. Baumgardner, Steven L. Engber
  • Publication number: 20120017804
    Abstract: A method for rejuvenating a bitumen containing compositions includes adding to the bitumen containing compositions a distillation residue of cashew nut shell liquid (CNSL). The distillation residue may be obtained by distillation of cashew nut shell liquid up to a temperature of between 250 and 350° C. The bitumen containing composition may be selected from: bitumen, asphalt, roof covering, insulating material, shore covering material, and anti-drum plates.
    Type: Application
    Filed: January 21, 2010
    Publication date: January 26, 2012
    Applicant: VAN WEEZENBEEK SPECIALTIES BV
    Inventors: Jeroen Berend Venema, Antonius Caspar Johannes Eijkenboom, Koen Dimitri van Weezenbeek, Sebastiaan Joannes van Weezenbeek
  • Patent number: 8088845
    Abstract: The invention is directed to a paraffin wax contained in a thermoplastic polymer packaging material which is meltable along with the paraffin wax.
    Type: Grant
    Filed: May 8, 2008
    Date of Patent: January 3, 2012
    Assignee: Shell Oil Company
    Inventors: Stephane Le Clerc, Mohd Yazid Bin Jaafar, Antonius Adrianus Maria Roovers, Jason Boon Eong Teh
  • Patent number: 7967905
    Abstract: Provided is a method of mixing a modified bitumen composition and feeding one or more polymeric materials to an extruder, together with asphalt fed at more than one location along a length of the extruder. Improved mixing and elimination of asphalt melting in the production of rolled goods and other products is improved.
    Type: Grant
    Filed: December 5, 2007
    Date of Patent: June 28, 2011
    Assignee: Johns Manville
    Inventors: Raymond C. Swann, Klaus Friedrich Gleich, Walter Alexander Johnson, Michael John Block, John VanNice
  • Patent number: 7951858
    Abstract: The invention concerns novel bituminous products, as well as novel aqueous emulsions of bituminous products, mixtures thereof with coated granules, useful for sealing application, building and maintaining road surfaces, sidewalks and runways, road surfaces, sidewalks, bicycle paths, parking lots and runways.
    Type: Grant
    Filed: June 6, 2007
    Date of Patent: May 31, 2011
    Assignee: CECA S,A,
    Inventors: Gilles Barreto, Lionel Grampre
  • Patent number: 7945319
    Abstract: A method for local delivery of a drug is provided. The method comprises acts of: (a) implanting a medical device including a drug-containing coating in a patient for the delivery of the drug, wherein the coating comprises a drug and a polymer; and (b) applying an electric current for an interval of time to the topcoat to cause the polymer to transform from a crystalline structure to an amorphous structure so as to increase the rate of release of the drug during the time interval, wherein after the electric current is terminated, the crystallinity of the polymer returns back to essentially the same degree of crystallinity or a more crystalline structure than that of when the polymer was exposed to the current.
    Type: Grant
    Filed: March 6, 2008
    Date of Patent: May 17, 2011
    Assignee: Advanced Cardiovascular Systems, Inc.
    Inventors: Connie S. Kwok, Charles D. Claude
  • Patent number: 7941212
    Abstract: A method for local delivery of a drug is provided. The method comprises the acts of (a) implanting a medical device carrying a drug-containing coating in a patient for the sustained local delivery of the drug, wherein at least a portion of the coating is transformed from crystalline structure to amorphous structure; and (b) applying an electric current for an interval of time to the device for increasing the rate of release of the drug, wherein the coating is further transformed from crystalline structure to amorphous structure; and (c) terminating the current after an interval of time, wherein at least a portion of the amorphous structure in the coating is at least partially restored to crystalline structure.
    Type: Grant
    Filed: March 6, 2008
    Date of Patent: May 10, 2011
    Assignee: Advanced Cardiovascular Systems, Inc.
    Inventors: Connie S. Kwok, Charles D. Claude
  • Publication number: 20110064874
    Abstract: A method of applying a powder coating composition during manufacture of modified bitumen roll roofing membranes, is provided. The coating composition is heat activated providing greater adherence to surfaces that it applied to, and greater reflective properties. The coating that has an initial energy efficiency rating greater than or equal to 0.65 for a low-sloped roof, or an initial energy efficiency greater than or equal to 0.25 for a steep-sloped roof.
    Type: Application
    Filed: November 22, 2010
    Publication date: March 17, 2011
    Applicant: GAF Materials Investment Corporation
    Inventors: Amir Khan, Michael De Souto
  • Publication number: 20110003094
    Abstract: Modified polyolefins with isotactic structural elements and processes for preparation thereof are provided. The modified poyolefins are useful as an adhesive or as a constituent of an adhesive.
    Type: Application
    Filed: July 6, 2010
    Publication date: January 6, 2011
    Applicant: EVONIK DEGUSSA GmbH
    Inventors: Hinnerk Gordon BECKER, Lutz Mindach, Holger Kautz, Miriam Ammer
  • Publication number: 20110003095
    Abstract: Modified polyolefins with syndiotactic structural elements and a processes for preparation thereof are provided. The modified polyolefins are useful as an adhesive or as a constituent of adhesives.
    Type: Application
    Filed: July 6, 2010
    Publication date: January 6, 2011
    Applicant: EVONIK DEGUSSA GmbH
    Inventors: Hinnerk Gordon Becker, Lutz Mindach, Holger Kautz, Miriam Ammer
  • Publication number: 20100317773
    Abstract: Disclosed are waterproofing membranes consisting of a backing impregnated with a bituminous formulation comprising industrial bitumen, a mineral filler, a thermoplastic polymer or a mixture of thermoplastic polymers, characterised in that the mineral filler consists of hollow glass microspheres with a density of between 0.10 and 0.14 g/cm3 and a size of less than 120 ?m.
    Type: Application
    Filed: June 15, 2010
    Publication date: December 16, 2010
    Applicant: POLYGLASS S.P.A.
    Inventors: Michele Drigo, Daniele Pascon
  • Patent number: 7811372
    Abstract: A rejuvenating agent having a viscosity of from 200 to 60000 cSt at 60° C. and comprising 10-90 weight % palm oil and 90-10 weight % bitumen, where the percentages are based upon the total weight of the composition, is disclosed. The rejuvenating agent is suitable for use in hot in-place and hot in-plant recycling processes.
    Type: Grant
    Filed: January 4, 2008
    Date of Patent: October 12, 2010
    Assignee: Shell Oil Company
    Inventors: Sophie Nigen-Chaidron, Laurent Porot
  • Publication number: 20100227954
    Abstract: Asphalt compositions and products comprising petroleum asphalt, polyolefin, and a wax.
    Type: Application
    Filed: March 8, 2009
    Publication date: September 9, 2010
    Inventors: PREMNATHAN NAIDOO, Patrick Keating
  • Patent number: 7678467
    Abstract: The present invention is directed to an air-blown roofing asphalt modified with polyphosphoric acid and roofing products made with the polyphosphoric acid-modified, air-blown asphalt.
    Type: Grant
    Filed: November 22, 2006
    Date of Patent: March 16, 2010
    Assignee: ICL Performance Products LP
    Inventors: Michael Falkiewicz, Rene Maldonado
  • Publication number: 20100048771
    Abstract: A saturated elastomeric mixture is disclosed having a cured or vulcanized elastomer crumb rubber and atmospheric distillations bottoms residue is disclosed.
    Type: Application
    Filed: August 20, 2009
    Publication date: February 25, 2010
    Inventor: John D. Osborn
  • Patent number: 7645820
    Abstract: In methods of preparing asphalt and elastomeric polymer compositions crosslinked with phenol aldehyde resins and sulfur, such as polymer modified asphalt (PMA), it has been discovered that the MP1 compatibility may be improved by adding certain ionic metal oxides. Suitable ionic metal salts include, but are not necessarily limited to, zinc oxide, cadmium oxide, and the like. Acceptable elastomeric polymers include, but are not necessarily limited to, styrene-butadiene copolymers. Additional sulfur-containing crosslinkers may also be used.
    Type: Grant
    Filed: April 24, 2008
    Date of Patent: January 12, 2010
    Assignee: Fina Technology, Inc.
    Inventors: Paul J. Buras, Joseph R. Bruns, William Lee
  • Patent number: 7625963
    Abstract: A polyurethane hot melt adhesive composition comprising an isocyanate, one or more polyols, one or more bituminous materials and optionally one or more thermoplastic materials. Another embodiment is directed to a method for bonding materials together which comprises applying the reactive hot melt adhesive composition in a liquid form to a first substrate, bringing a second substrate in contact with the composition applied to the first substrate, and subjecting the applied composition to conditions which will allow the composition to cool and cure to an irreversible solid form, said conditions comprising moisture. Still another aspect is directed to an article of manufacture comprising the adhesive.
    Type: Grant
    Filed: January 25, 2007
    Date of Patent: December 1, 2009
    Assignee: Henkel AG & Co. KGaA
    Inventors: Yongxia Wang, Louis A. Moore, Gary Raykovitz
  • Patent number: 7608650
    Abstract: Asphalt and elastomeric polymer compositions crosslinked with mixed polythiomorpholines or at least one alkyl polysulfide can give polymer modified asphalts (PMAs) with improved properties and/or reduced H2S evolution. When at least one alkyl polysulfide is used to completely or partially replace conventional crosslinkers such as S or MBT, mercaptobenzimidazole (MBI) may be optionally used as a co-crosslinker. The use of mixed polythiomorpholines as crosslinkers provide PMAs with better low temperature profiles (BBR m-values). The use of at least one alkyl polysulfide crosslinker gives PMAs with improved PAV-aged DSR results, and reduced H2S evolution. The use of at least one alkyl polysulfide crosslinker together with MBI may give PMAs with improved PAV DSR Fail Temperatures.
    Type: Grant
    Filed: February 6, 2009
    Date of Patent: October 27, 2009
    Assignee: Fina Technology, Inc.
    Inventors: Paul Buras, William Lee, James Butler, Wendy Stanley
  • Patent number: 7569627
    Abstract: The binder is produced based on natural bitumen, or bitumen from the oil industry, and comprises a first additive which is constituted by a hydrocarbon wax whose melting point is greater than 85° C. This binder further comprises a fatty acid ester wax which is of synthetic, vegetable or fossil vegetable origin and which has a melting point of less than 85° C. Use in the production of sealing coatings for buildings or civil engineering works, coatings for traffic routes or urban amenities.
    Type: Grant
    Filed: May 28, 2004
    Date of Patent: August 4, 2009
    Assignee: COLAS
    Inventor: Jean-Pierre Dean
  • Patent number: 7544239
    Abstract: Methods of modifying crude fractions are described herein. The methods generally include blending a crude fraction with an emissions reducing additive to form a modified crude fraction, wherein the modified crude fraction exhibits reduced sulfur emissions. The emissions reducing additive generally includes a dispersion of a metal oxide.
    Type: Grant
    Filed: October 14, 2005
    Date of Patent: June 9, 2009
    Assignee: Fina Technology, Inc.
    Inventors: Paul J. Buras, William D. Lee, James R. Butler
  • Patent number: 7536221
    Abstract: A coating for an implantable medical device is disclosed, the coating including a self-assembled molecular structure. The coating can be used for altering the release rate of a therapeutic substance from the implantable device.
    Type: Grant
    Filed: March 6, 2008
    Date of Patent: May 19, 2009
    Assignee: Advanced Cardiovascular Systems, Inc.
    Inventors: Connie S. Kwok, Charles D. Claude
  • Patent number: 7452930
    Abstract: It is the subject of the present invention to provide a solvent-free ambient-temperature curable composition, excellent in water-resistant adhesion, storage stability and curability, and generates neither smoke nor odor when working therewith. The relevant problem is solved by a curable composition including (A) a natural asphalt and/or petroleum asphalt, (B) a polyoxyalkylene polymer having one or more reactive silicon groups capable of cross-linking by forming siloxane bonds through silanol condensation reaction.
    Type: Grant
    Filed: October 24, 2005
    Date of Patent: November 18, 2008
    Assignee: Kaneka Corporation
    Inventors: Atsushi Kawakami, Katsuhiro Ando
  • Publication number: 20080242772
    Abstract: The present invention provides a low electric conductivity, high heat radiation polymeric composition which includes a polymeric material, from 10 to 35% by volume of a carbon fiber, and from 1 to 20% by volume of a ceramics.
    Type: Application
    Filed: March 25, 2008
    Publication date: October 2, 2008
    Applicant: TOYODA GOSEI CO. LTD
    Inventors: Yoshiki NAKAMURA, Hideyuki FUJIWARA, Hideyuki IMAI
  • Publication number: 20080176975
    Abstract: There are provided a polyol curable fluororubber composition using a fluororubber of general use, a cured fluororubber formed article used as a grommet, a seal packing and the like for a gas sensor which can be used under high temperature circumstances using this, and a method of producing the same. A polyol curable fluororubber composition, which comprises 100 parts by weight of a fluororubber, 6 to 15 parts by weight of magnesium oxide, 0.5 to 5 parts by weight of a hydrotalcite group compound and 20 to 55 parts by weight of a mixture of thermal black and a bituminous coal filler. A cured fluororubber formed article which is produced by forming and curing the fluororubber composition in the presence of a polyol curing agent, and then subjecting the cured formed product to a stepwise temperature elevation treatment in a temperature range of 100° C. to 300° C.
    Type: Application
    Filed: November 1, 2007
    Publication date: July 24, 2008
    Inventors: Masaya Ocho, Tatsuo Katayama, Takashi Nanba, Masaru Okamoto
  • Patent number: 7402619
    Abstract: The present invention relates to a bituminous composition comprising a bituminous component, an elastomeric polymer component, and a specific cross-linking composition component comprising elemental sulfur, a sulfur-containing derivative, a sulfur activator, a fatty acid or fatty acid derivative and a polymeric carrier. Compositions according to the invention are particularly useful in preparing polymer-modified asphalt (“PMA”) for road applications.
    Type: Grant
    Filed: March 31, 2005
    Date of Patent: July 22, 2008
    Assignee: Kraton Polymers U.S. LLC
    Inventor: Keith E. Stephens
  • Patent number: 7365111
    Abstract: In methods of preparing asphalt and elastomeric polymer compositions crosslinked with phenol aldehyde resins and sulfur, such as polymer modified asphalt (PMA), it has been discovered that the MP1 compatibility may be improved by adding certain ionic metal oxides. Suitable ionic metal oxides include, but are not necessarily limited to, zinc oxide, cadmium oxide, and the like. Acceptable elastomeric polymers include, but are not necessarily limited to, styrene-butadiene copolymers. Additional sulfur-containing crosslinkers may also be used.
    Type: Grant
    Filed: December 23, 2004
    Date of Patent: April 29, 2008
    Assignee: Fina Technology, Inc.
    Inventors: Paul J. Buras, Joseph R. Bruns, William Lee
  • Patent number: 7363074
    Abstract: A coating for an implantable medical device is disclosed, the coating including a self-assembled molecular structure. The coating can be used for altering the release rate of a therapeutic substance from the implantable device.
    Type: Grant
    Filed: August 20, 2002
    Date of Patent: April 22, 2008
    Assignee: Advanced Cardiovascular Systems, Inc.
    Inventors: Connie S. Kwok, Charles D. Claude
  • Patent number: 7247664
    Abstract: Disclosed is a bituminous composition that comprises a bituminous component (A), an elastomer component (B), preferably a block copolymer of a conjugated diene and a monovinylaromatic hydrocarbon, and an additive (C), wherein the additive is a compound of the general formula Ar—R—Ar??(I) wherein each “Ar” independently is a benzene ring or fused aromatic ring system of 6 to 20 carbon atoms, substituted by at least one hydroxyl group, and “R” is an optionally substituted divalent radical comprising 6 to 20 atoms in the backbone and at least one amide and/or ester group in the backbone. These compositions are disclosed to be particularly useful in the preparing and repair of roofing.
    Type: Grant
    Filed: June 13, 2005
    Date of Patent: July 24, 2007
    Assignee: Kraton Polymers U.S. LLC
    Inventors: Gerardus Wilhelmus Jozef Heimerikx, Erik Adrianus Theunis Trommelen
  • Patent number: 7241818
    Abstract: The present invention is a fly ash filler or filler blend having a particle size distribution with at least three modes that can be combined with a polymer or bitumen at higher filler loadings to produce a filled polymer or bitumen for composites that, in many cases, can produce improved mechanical properties for the composites over composites using conventional fillers. As a result, superior composites (e.g. those used in carpet backing) can be produced at a lower cost than conventional composites. The present invention also includes a method for producing a composite, comprising the steps of combining a polymer or bitumen with a fly ash filler or a filler blend having a particle size distribution with at least three modes to produce a filled polymer or bitumen and producing a composite with the resulting filled polymer or bitumen. The present invention further includes a method of determining what fly ashes can be used as fillers for composites.
    Type: Grant
    Filed: February 28, 2005
    Date of Patent: July 10, 2007
    Assignee: Boral Material Technologies, Inc.
    Inventors: Raymond T. Hemmings, Russell L. Hill, Bruce J. Cornelius
  • Patent number: 7241821
    Abstract: A method is provided for improving high temperature performance grade properties of polymer-modified, vulcanized asphalt by treating an asphalt cement under mild oxidizing conditions sufficient to provide a change in viscosity per hour as measured at 140° C. of less than about 500 poises per hour, of said asphalt cement, adding 1 wt. % to 10 wt. % of a polymer based on weight of said asphalt cement, and vulcanizing the polymer-containing asphalt cement. The invention further relates to asphalt compositions thus made and paving compositions containing these asphalt compositions.
    Type: Grant
    Filed: August 10, 2004
    Date of Patent: July 10, 2007
    Assignee: Marathon Ashland Petroleum LLC
    Inventors: Roger E. Hayner, Patricia K. Doolin, Robert H. Wombles
  • Patent number: 7205344
    Abstract: The present invention relates to compositions and methods for providing an improved means of modifying asphalt with a polymer. More particularly, this invention provides a crosslinking system to improve the properties of polymer modified asphalt. Compositions of the present invention contain asphalt, a rubber or elastomeric polymer, and a crosslinkable component, particularly a bismaleimide or a bismaleimide in combination with a difunctional crosslinkable monomer.
    Type: Grant
    Filed: May 7, 2004
    Date of Patent: April 17, 2007
    Assignee: General Electric Company
    Inventors: Alan E. Goliaszewski, Paul R. Hart, Fang Deng, Ping Lue
  • Patent number: 7186765
    Abstract: The present invention provides a method for preparing an asphalt and thermoplastic elastomer composition. The process comprises heating an asphalt cut in a stirred tank to a temperature sufficient to allow the stirring of the asphalt in the tank. A thermoplastic elastomer or rubber is added to the asphalt while continuing to stir the asphalt. The mixture is stirred at a speed and for a period of time sufficient to increase the distribution of the elastomer into the asphalt. The stirring speed is reduced and the temperature is increased to add crosslinking agents to the tank. Stirring is continued for a period of time sufficient to improve the distribution of the crosslinking agent dispersion in the asphalt. Crosslinking agents include compositions of mercaptobenzothiazole, zinc oxide and elemental sulfur; compositions of mercaptobenzothiazole, zinc oxide, and mixed polythiomorpholine; and compositions of zinc 2-mercaptobenzothiazole and dithiodimorpholine.
    Type: Grant
    Filed: July 9, 2004
    Date of Patent: March 6, 2007
    Assignee: Fina Technology, Inc.
    Inventors: James R. Butler, Kevin P. Kelly, Paul Buras
  • Patent number: 7160943
    Abstract: A fluid or semifluid additive composition useful for asphalt paving comprises between about 10% and about 50% crumb rubber, about 10% and about 50% petroleum hydrocarbon having at least about 50% aromatics, between about 10% and about 50% surface active clay, and water, by weight.
    Type: Grant
    Filed: August 3, 2004
    Date of Patent: January 9, 2007
    Assignee: Flex Products, Inc.
    Inventors: Michael V. Burris, Bryan B. Burris
  • Patent number: 7060743
    Abstract: The present invention provides a bitumen composition including: —(i) from 0.1 to 25% wt of an elastomer, (ii) from 0.1 to 40% wt of a solvent, (iii) from 30 to 99% wt of a bitumen, (iv) from 0.1 to 30% wt of a lithium salt of a C10–C40 fatty acid or hydroxy fatty acid, and optionally (v) from 0 to 70% wt of a filler, all weights based on total bitumen composition, wherein the solvent is of general formula (I), wherein R1 represents a hydrogen atom or a hydrocarbyl group having from 1 to 6 carbon atoms, R2 represents a hydrocarbyl group having from 1 to 6 carbon atoms, and the sum of the carbon atoms in R1 and R2 is from 5 to 7; a process of preparing said bitumen composition and the use of the composition as a cold-applicable adhesive.
    Type: Grant
    Filed: October 10, 2003
    Date of Patent: June 13, 2006
    Assignee: Shell Oil Company
    Inventors: François Julien Raoul Deygout, Alain Marcel Bernard Seive
  • Patent number: RE41167
    Abstract: A modified asphalt composition is provided comprising at least one plastomer, at least one elastomer, and asphalt. More specifically, a modified asphalt composition is provided comprising an oxidized polyethylene, a styrene-butadiene-styrene block copolymer, and asphalt. A hot mix asphalt composition is also provided comprising the modified asphalt composition and aggregate. Processes for producing the modified asphalt composition and the hot mix asphalt composition is also provided as well as articles produced from these inventive compositions.
    Type: Grant
    Filed: November 26, 2008
    Date of Patent: March 23, 2010
    Assignee: Westlake Longview Corporation
    Inventors: Richard Kingsley Stuart, Jr., Jeffery Lynn Presley, Louis Thomas Germinario