Solid Polymer Derived From Ethylenic Reactants Only, At Least One Of Which Is A Hydrocarbon Other Than Ethylene Patents (Class 524/71)
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Patent number: 7851523Abstract: An asphalt waterproof composition containing waste tire chips and bentonite which includes about 10-15 of asphalt, about 20-50 of oil, about 8-12 of filler, about 1-3.5 of elasticity increasing agent, about 25-40 of waste tire chips melting solution, about 0.5-1 of sulfur, about 0.05-1 of sulfur vulcanizing agent, about 0.1-0.4 of antiaging agent, about 10-20 of bentonite, about 1-5 of water soluble high polymer resin by weight, respectively, and the process for the preparation of its manufacture.Type: GrantFiled: December 6, 2004Date of Patent: December 14, 2010Assignee: Re-New System Co., Ltd.Inventors: Sang-Keun Lee, Jong-Yong Lee
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Patent number: 7838575Abstract: High performance bituminous mixtures that are useful for the road paving and roofing industries comprise mineral aggregates coated with a thermoplastic polymer composition. Because of their high performance properties, the absence of any aggressive and toxic adhesion promoters and the possibility of using recovered or recycled thermoplastic polymers to form the coating or “membrane,” the bituminous mixtures described herein provide an excellent environmentally friendly solution for pavement construction and roofing industries.Type: GrantFiled: December 19, 2008Date of Patent: November 23, 2010Assignee: E. I. du Pont de Nemours and CompanyInventors: Jiri Lang, Stephen L. Cluff
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Publication number: 20100273915Abstract: The present invention relates to a pellet type SBS-asphalt master batch modifier composition comprising styrene-butadiene-styrene (SBS) block copolymer and asphalt, and modified asphalt prepared by melting and mixing the pellet type SBS-asphalt master batch modifier composition with asphalt. The modified asphalt prepared thereof has advantages that deterioration of physical properties and thermal oxidation can be prevented while productivity can be improved due to reduced melting time of modifier.Type: ApplicationFiled: October 2, 2008Publication date: October 28, 2010Inventors: Seung-Han Choen, Jun-sang Park, Sunwoo Cheen, Joonbum Pyun
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Patent number: 7820739Abstract: A method for forming a modified asphalt binder composition, the method comprising preparing a phosphorus pentasulfide-binder concentrate by introducing and mixing phosphorus pentasulfide and asphalt binder, where the phosphorus pentasulfide-binder concentrate includes greater than 0.5 parts by weight phosphorus pentasulfide per 100 parts by weight asphalt, preparing a polymer-binder concentrate by introducing and mixing polymer and asphalt binder, where the polymer-binder concentrate includes greater than 5 parts by weight polymer per 100 parts by weight asphalt, and introducing and mixing the phosphorus pentasulfide-binder concentrate with the polymer-binder concentrate to form a modified asphalt binder composition, where the phosphorus pentasulfide includes a blend of P4S10 and P4S9.Type: GrantFiled: November 30, 2009Date of Patent: October 26, 2010Inventors: William L. Hergenrother, Peter W. Boerner, Daniel F. Graves, Christine Rademacher, Timothy P. Reece, Herbert L. Wissel
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Patent number: 7816429Abstract: A method for forming a modified asphalt binder composition, the method comprising preparing a phosphorus pentasulfide-binder concentrate by introducing and mixing phosphorus pentasulfide and asphalt binder, where the phosphorus pentasulfide-binder concentrate includes greater than 0.5 parts by weight phosphorus pentasulfide per 100 parts by weight asphalt, preparing a polymer-binder concentrate by introducing and mixing polymer and asphalt binder, where the polymer-binder concentrate includes greater than 5 parts by weight polymer per 100 parts by weight asphalt, and introducing and mixing the phosphorus pentasulfide-binder concentrate with the polymer-binder concentrate to form a modified asphalt binder composition.Type: GrantFiled: December 1, 2009Date of Patent: October 19, 2010Inventors: William L. Hergenrother, Peter W. Boerner, Christine Rademacher, Daniel F. Graves, Timothy P. Reece, Herbert L. Wissel
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Patent number: 7811372Abstract: 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: GrantFiled: January 4, 2008Date of Patent: October 12, 2010Assignee: Shell Oil CompanyInventors: Sophie Nigen-Chaidron, Laurent Porot
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Publication number: 20100236178Abstract: A sealant composition for roofing shingles that includes a base asphalt, a linear and/or a radial copolymer, oil, and a wax is provided. The linear copolymer has an A-B di-block or an A-B-A tri-block structure. The radial copolymer may have an (A-B)n radial structure, where n is at least 4, or a tri-block (A-B-A) radial structure having from 4 to 8 arms. Blocks A and B may individually represent (1) styrene and butadiene or (2) styrene and isoprene. The oil is a petroleum-based oil that both “softens” the asphalt and reduces the viscosity of the sealant composition. The wax may be a bis-stearamide wax. Additionally, the sealant composition may be reacted with elemental sulfur to crosslink the copolymer blend. The sealant composition seals at temperatures lower than conventional sealants and promotes the easy release of the shingle from a shingle bundle.Type: ApplicationFiled: March 19, 2010Publication date: September 23, 2010Inventors: James E. Loftus, Donn R. Vermilion, Jason D. Guerra
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Publication number: 20100222468Abstract: A method of selecting a crack resistant layer to be applied to an existing surface, the method comprising the steps of: selecting at least one bituminous binder to examine, where the bituminous binder comprises bitumen and one or more polymers, where the one or more polymers include a sufficient amount of conjugated diene such that at least 2.5% of the bituminous binder's weight comprises conjugated diene, preferably at least 3.0%, more preferably at least 3.5%, and most preferably 4.0%; forming at least one bituminous mixture comprising the bituminous binder and an aggregate; testing each bituminous mixture for fatigue properties; and selecting a bituminous binder for use in the crack resistant layer.Type: ApplicationFiled: February 27, 2009Publication date: September 2, 2010Applicant: SEMMATERIALS, L.P.Inventors: James J. Barnat, Phillip Blankenship, Richard Steger, Todd Lynn, Jason Bausano, Jehna Dent, Tim McKinney
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Publication number: 20100222465Abstract: A method of selecting a crack resistant layer to be applied to an existing surface, the method comprising the steps of: selecting at least one bituminous binder to examine, where the bituminous binder comprises bitumen and one or more polymers, where the one or more polymers include a sufficient amount of conjugated diene such that at least 2.5% of the bituminous binder's weight comprises conjugated diene, preferably at least 3.0%, more preferably at least 3.5%, and most preferably 4.0%; forming at least one bituminous mixture comprising the bituminous binder and an aggregate; testing each bituminous mixture for mixture fracture energy properties; and selecting a bituminous binder for use in the crack resistant layer.Type: ApplicationFiled: February 27, 2009Publication date: September 2, 2010Applicant: SEMMATERIALS, L.P.Inventors: James J. Barnat, Phillip Blankenship, Richard Steger, Todd Lynn, Jason Bausano, Jehna Dent, Tim McKinney
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Publication number: 20100222469Abstract: A method of selecting a crack resistant layer to be applied to an existing surface, the method comprising the steps of: selecting at least one bituminous binder to examine, where the bituminous binder comprises bitumen and one or more polymers, where the one or more polymers include a sufficient amount of conjugated diene such that at least 2.5% of the bituminous binder's weight comprises conjugated diene, preferably at least 3.0%. more preferably at least 3.5%, and most preferably 4.0%; forming at least one bituminous mixture comprising the bituminous binder and an aggregate; testing each bituminous binder for binder fracture energy properties; and selecting a bituminous binder for use in the crack resistant layer.Type: ApplicationFiled: February 27, 2009Publication date: September 2, 2010Applicant: SEMMATERIALS, L.P.Inventors: James J. Barnat, Phillip Blankenship, Richard Steger, Todd Lynn, Jason Bausano, Jehna Dent, Tim McKinney
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Publication number: 20100222467Abstract: A method of selecting a crack resistant layer to be applied to an existing surface, the method comprising the steps of: selecting at least one emulsified bituminous binder to examine, where the emulsified bituminous binder comprises bitumen, one or more emulsifier, and one or more polymers, where the one or more polymers, the one or more emulsifier, or both include a sufficient amount of conjugated diene such that at least 2.5% of the emulsified bituminous binder residuum weight comprises conjugated diene, preferably at least 3.0%, more preferably at least 3.5%, and most preferably 4.0%; forming at least one bituminous mixture comprising the emulsified bituminous binder and an aggregate; testing each bituminous mixture for mixture fracture energy properties; and selecting a emulsified bituminous binder for use in the crack resistant layer.Type: ApplicationFiled: February 27, 2009Publication date: September 2, 2010Applicant: SemMaterials, L.P.Inventors: James J. Barnat, Vince Vopat
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Patent number: 7781503Abstract: A process for preparing a modified asphalt binder composition, the process comprising mixing asphalt, an unsaturated polymer, and phosphorus pentasulfide to form a modified asphalt composition.Type: GrantFiled: December 22, 2006Date of Patent: August 24, 2010Inventors: William L. Hergenrother, Peter W. Boerner, Christine Rademacher, Daniel F. Graves, Timothy P. Reece, Herbert L. Wissel
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Publication number: 20100190895Abstract: Cross-linked rubber obtained from a rubber composition, which comprises 100 parts by weight of EPDM, 5-120 parts by weight carbon black, 70-150 parts by weight of fine bituminous powder, and 0.2-8 parts by weight of an organic peroxide, has distinguished heat resistance and sealability, and can suppress blister generation due to pressure changes when used in contact with carbon dioxide, and is specifically distinguished foaming-resistance characteristics due to abrupt pressure reduction of carbon dioxide, which are the necessary characteristics of seal material for carbon dioxide refrigerant, and also distinguished compression set characteristics, which determine the product life at elevated temperatures, and thus is suitable for use as carbon dioxide seal materials, such as O rings, packings, gaskets, oil seals, valves, etc.Type: ApplicationFiled: June 11, 2008Publication date: July 29, 2010Applicant: NOK CORPORATIONInventor: Takeshi Sato
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Patent number: 7732511Abstract: The invention relates to anhydrous bituminous products containing one or several specific additives which make it possible to substantially reduce a temperature for producing aggregate and bituminous product mixtures in such a way that it ranges from 20 to 40° C., wherein the temperature of the aggregate and the bituminous product mixture during spreading ranges from 10 to 40° C. and the temperature in the core of the aggregate and bituminous product mixtures during compacting can be raised to 50° C. without degrading the standardized properties of the bituminous product and the bituminous product and aggregate mixture and ensuring the process continuity from transport to compacting according to the state of the art. The inventive aggregate and bituminous product mixtures are particularly suitable for tightening, building and servicing road surfaces, pavements and airfield runways.Type: GrantFiled: April 4, 2006Date of Patent: June 8, 2010Assignee: Ceca S.A.Inventors: Gilles Barreto, Loic Fraboulet
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Publication number: 20100098930Abstract: A composition for use in a fiber modified layer, comprising an aggregate material, a binder, and a plurality of fibers, wherein each fiber has a length of greater than 0.25 inches. Also provided is a method of selecting a fiber modified layer for applying on an existing surface, comprising the steps of: providing a binder mixture having an effective amount of an aggregate material, a binder, and a plurality of fibers, wherein each of the plurality of fibers has a length greater than 0.25 inches; applying the binder mixture to a selected surface to form a fiber modified proposed layer; testing the fiber modified proposed layer for fatigue or crack resistant properties; and selecting the binder mixture for application on the existing surface for performance if the fiber modified proposed layer has fatigue or crack resistant properties.Type: ApplicationFiled: October 16, 2008Publication date: April 22, 2010Inventors: Arlis Kadrmas, Renato Ceccovilli
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Patent number: 7678467Abstract: 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: GrantFiled: November 22, 2006Date of Patent: March 16, 2010Assignee: ICL Performance Products LPInventors: Michael Falkiewicz, Rene Maldonado
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Publication number: 20100048771Abstract: A saturated elastomeric mixture is disclosed having a cured or vulcanized elastomer crumb rubber and atmospheric distillations bottoms residue is disclosed.Type: ApplicationFiled: August 20, 2009Publication date: February 25, 2010Inventor: John D. Osborn
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Patent number: 7645820Abstract: 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: GrantFiled: April 24, 2008Date of Patent: January 12, 2010Assignee: Fina Technology, Inc.Inventors: Paul J. Buras, Joseph R. Bruns, William Lee
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Patent number: 7642302Abstract: A process for preparing a modified asphalt binder composition, the process comprising mixing asphalt, an unsaturated polymer, and phosphorus pentasulfide to form a modified asphalt composition.Type: GrantFiled: June 20, 2007Date of Patent: January 5, 2010Inventors: William L. Hergenrother, Peter W. Boerner, Daniel F. Graves, Christine Rademacher, Timothy P. Reece, Herbert L. Wissel
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Patent number: 7625963Abstract: 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: GrantFiled: January 25, 2007Date of Patent: December 1, 2009Assignee: Henkel AG & Co. KGaAInventors: Yongxia Wang, Louis A. Moore, Gary Raykovitz
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Patent number: 7608650Abstract: 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: GrantFiled: February 6, 2009Date of Patent: October 27, 2009Assignee: Fina Technology, Inc.Inventors: Paul Buras, William Lee, James Butler, Wendy Stanley
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Publication number: 20090215931Abstract: 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: ApplicationFiled: February 20, 2009Publication date: August 27, 2009Applicant: ALM Holding Co.Inventors: Gerald H. REINKE, Gaylon L. BAUMGARDNER, Steven L. ENGBER
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Patent number: 7569627Abstract: 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: GrantFiled: May 28, 2004Date of Patent: August 4, 2009Assignee: COLASInventor: Jean-Pierre Dean
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Patent number: 7544239Abstract: 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: GrantFiled: October 14, 2005Date of Patent: June 9, 2009Assignee: Fina Technology, Inc.Inventors: Paul J. Buras, William D. Lee, James R. Butler
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Publication number: 20090137690Abstract: A delinked polymer modified bitumen comprising a delinked polymer-bitumen composite and additional bituminous material. The delinked polymer-bitumen composite comprises sulfur-cured elastomeric material having a vulcanized network and a plurality of polymer backbones; at least one rubber accelerator and at least one activator in sufficient quantities to delink the vulcanized network of the sulfur-cured elastomeric material; and at least one bituminous material, where the sulfur-cured elastomeric material, the rubber accelerator, the activator, and the bituminous material are mixed under high shear conditions at a temperature greater than 70° C. to produce the delinked polymer-bitumen composite.Type: ApplicationFiled: November 24, 2008Publication date: May 28, 2009Applicant: SEMMATERIALS, L.P.Inventor: James J. Barnat
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Publication number: 20090137705Abstract: The present invention relates to a hot-melt binder based on asphalt or bitumen, comprising at least one additive for lowering the production temperature of the asphalt product relative to that of the base product, said additive being a triglyceride of saturated fatty acids. The present invention likewise relates to processes for preparing an asphalt or bituminous product coated material, in which the mixing temperature is lowered. The present invention finally relates to an asphalt product or coated bituminous material comprising a hot-melt binder according to the invention.Type: ApplicationFiled: November 20, 2008Publication date: May 28, 2009Inventors: Stephane FAUCON DUMONT, Frederic Delfosse, Thomas Gianetti
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Publication number: 20090124730Abstract: A primary modified polymer composed of (1) a hydrogenated polymer obtained by hydrogenating at least one non-hydrogenated polymer selected from the group consisting of polymers comprising conjugated diene monomer units and copolymers comprising conjugated diene monomer units and vinyl aromatic monomer units and (2) groups of a primary modifier having a functional group which are bonded to the polymer (1), which has a specific vinyl aromatic monomer unit content, a specific vinyl aromatic polymer block content, a specific weight-average molecular weight, and a specific degree of hydrogenation of the double bonds of conjugated diene monomer units; a secondary modified polymer obtained by reacting a primary modified polymer composed of (?) a base polymer and (?) groups of a primary modifier having a functional group which are bonded to the polymer (?) with a secondary modifier; and compositions comprising the primary or secondary modified polymer and at least one other component.Type: ApplicationFiled: December 22, 2008Publication date: May 14, 2009Inventors: Takaaki Matsuda, Shigeki Takayama, Toshinori Shiraki, Shigeo Nakajima, Yasuhiro Kusanose
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Publication number: 20090061236Abstract: This invention relates to bituminous compositions comprising an interpolymer and a bituminous material and methods of making and using same. The interpolymer may comprise ethylene, at least one alpha-olefin, and, optionally, at least one diene and the interpolymer is derived from polymer particles having a surface coating comprising a partitioning agent. Methods of making and using the bituminous compositions are also described.Type: ApplicationFiled: August 20, 2008Publication date: March 5, 2009Applicant: Dow Global Technologies Inc.Inventors: Brian W. Walther, Arnis U. Paeglis, Morgan M. Hughes, Carl F. Baker
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Publication number: 20090054562Abstract: 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: ApplicationFiled: October 29, 2008Publication date: February 26, 2009Inventor: Jean-Valery Martin
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Publication number: 20080287577Abstract: A rubber composition for a pneumatic tire containing 100 parts by weight of a diene-based rubber and 5 to 120 parts by weight of carbon black having a particle size of 15 to 40 nm, a nitrogen absorption specific surface area N2SA of 60 to 200 m2/g, and a pH of 1 to 5 or 8.5 to 13, which can improve wet performance of a tire without causing problems in productivity and conductivity.Type: ApplicationFiled: July 25, 2008Publication date: November 20, 2008Applicant: The Yokohama Rubber Co., Ltd.Inventor: Naoya Amino
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Patent number: 7452930Abstract: 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: GrantFiled: October 24, 2005Date of Patent: November 18, 2008Assignee: Kaneka CorporationInventors: Atsushi Kawakami, Katsuhiro Ando
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Patent number: 7446139Abstract: 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: GrantFiled: May 2, 2006Date of Patent: November 4, 2008Assignee: Innophos, Inc.Inventor: Jean-Valery Martin
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Patent number: 7439286Abstract: 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: GrantFiled: June 2, 2006Date of Patent: October 21, 2008Assignee: Westlake Longview CorporationInventors: Richard Kingsley Stuart, Jr., Jeffrey Lynn Presley, Louis Thomas Germinario
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Publication number: 20080242772Abstract: 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: ApplicationFiled: March 25, 2008Publication date: October 2, 2008Applicant: TOYODA GOSEI CO. LTDInventors: Yoshiki NAKAMURA, Hideyuki FUJIWARA, Hideyuki IMAI
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Patent number: 7417082Abstract: Bituminous asphalt binder materials which are modified by the addition of crumb rubber or ground tire rubber and a cross-linking agent are described. In addition, methods are provided for producing a modified asphalt binder containing crumb rubber or ground tire rubber and a cross-linking agent. The modified asphalt binders comprise neat asphalt, crumb rubber, one or more acids and a cross-linking agent. Optionally, the modified asphalt binder may include one or more polymer additives. The crumb rubber may be obtained from recycled truck and/or automobile tires. The addition of crumb rubber in asphalt binders can improve the consistency and properties of the asphalt binders at high and low temperatures. In particular, the modified asphalt binders of the present invention exhibit improved elastic behavior, resulting in improved performance of roads or other surfaces paved using the modified asphalt binder.Type: GrantFiled: May 3, 2006Date of Patent: August 26, 2008Assignee: Innophos, Inc.Inventor: Jean-Valery Martin
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Publication number: 20080184913Abstract: Asphalt or bitumen compositions are effectively stabilized against the deleterious effects of heat, light and oxygen, via the incorporation therein of an effective stabilizing amount of one or more sterically hindered amine compounds. The sterically hindered amines are macrocyclic, thermally stable, insoluble in water and have very low vapor pressure. The sterically hindered amines are for instance the cyclic condenstates of N,N?-bis(2,2,6,6-tetramethyl-4-piperidyl)-hexamethylenediamine and 4-tert-octylamino-2,6-dichloro-1,3,5-triazine, of N,N?-bis(2,2,6,6-tetramethyl-4-piperidyl)-hexamethylenediamine and 4-cyclohexylamino-2,6-dichloro-1 ,3, 5-triazine, or of N,N?-bis-(2,2,6,6-tetramethyl-4-piperidyl)hexamethylenediamine and 4-morpholino-2,6-dichloro-1,3,5-triazine. Synthetic rubber modified asphalt or bitumen may also be stabilized via incorporation of these hindered amines.Type: ApplicationFiled: November 26, 2007Publication date: August 7, 2008Inventor: Jose A. Luna y Santos
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Patent number: 7402619Abstract: 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: GrantFiled: March 31, 2005Date of Patent: July 22, 2008Assignee: Kraton Polymers U.S. LLCInventor: Keith E. Stephens
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Publication number: 20080161451Abstract: The invention relates to a bituminous binder composition comprising: (a) 60-99.75 wt. % bitumen; (b) 0.05-5.0 wt. % of an elastomer; (c) 0.1-30.0 wt. % of a mono-alkyl ester of a vegetate e oil or an animal oil; and (d) 0.1-5.0 of an amide additive; based on the total weight of the bituminous binder composition, and a process for preparing the bituminous binder composition. The inventions further relates to the use of the bituminous binder composition in surface dressing, in particular road construction, road renovation, joint filling and sealing purposes.Type: ApplicationFiled: March 18, 2005Publication date: July 3, 2008Inventors: Bert Jan Lommerts, Anton Nico Van Loef, Martinus Rijk Verweij
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Patent number: 7365111Abstract: 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: GrantFiled: December 23, 2004Date of Patent: April 29, 2008Assignee: Fina Technology, Inc.Inventors: Paul J. Buras, Joseph R. Bruns, William Lee
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Publication number: 20080076855Abstract: The novel process provides latices of homo- and copolymers of chloroprene and of one or more further copolymerizable monomers at a higher reaction rate and hence in an improved space-time yield. The latices obtained have a high gel content, distinctly lower levels of by-products, in particular of chloroprene dimer, than prior art products, and are useful, if appropriate in concentrated form, for a wide variety of applications.Type: ApplicationFiled: August 29, 2007Publication date: March 27, 2008Inventors: Lothar Reif, Christian Lente
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Patent number: 7338991Abstract: In methods of preparing asphalt and elastomeric polymer compositions, it has been discovered that for a given crosslinker or vulcanizing agent there is an optimum crosslinking temperature to give a composition that has top and bottom softening points that are close. That is, rubber/asphalt compatibility is improved, where the crosslinking is performed within the optimum temperature range.Type: GrantFiled: October 23, 2006Date of Patent: March 4, 2008Assignee: Fina Technology, Inc.Inventor: Paul Buras
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Patent number: 7335416Abstract: A mouldable pressure-sensitive hydrocolloid adhesive composition, particularly useful as a medical adhesive, comprising a dispersion of a discontinuous phase of one or more water-soluble and/or water swellable absorbent polymers in a continuous phase comprising a thermoplastic elastomer, a compatible liquid rubber, a polyisobutylene and a low-molecular weight polybutene.Type: GrantFiled: April 17, 2002Date of Patent: February 26, 2008Assignee: Avery Dennison CorporationInventor: Roger D. A. Lipman
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Patent number: 7297720Abstract: Composite mixture materials made of recycled plastic, glass and rubber, and optionally, sand, gravel, coal combustion by-product and metal, and containing no petroleum distillates (unless a fire retardant or recycled asphalt pavement is used) are disclosed. Methods of using the composite mixture materials include making expansion joints in pavement, filling manhole cover recesses, filling potholes in pavement, making new pavements, and making panels, walls, blocks, impact protection walls, and other such structures. Methods of making the composite mixture materials include heating the components of the material in an inert gas environmentally friendly manner.Type: GrantFiled: October 18, 2005Date of Patent: November 20, 2007Assignee: Ace Tire & Parts, Inc.Inventors: John J. Meyers, III, John H. Swartz, Nathaniel G. Kurczewski, Matthew J. Kurczewski
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Publication number: 20070249762Abstract: Rubber modified asphalts and their methods of manufacture. One or more sulfonic acids is/are added to a mixture of asphalt and rubber particles, or to an existing rubber modified asphalt composition. Heat and/or mixing may be applied during or after addition of the sulfonic acid(s).Type: ApplicationFiled: July 10, 2006Publication date: October 25, 2007Applicant: RAM Technologies Group, Inc.Inventor: Laurence M. Sylvester
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Patent number: 7271207Abstract: A bituminous composition which comprises a bituminous component and a block copolymer which comprises at least two blocks of a conjugated diene and at least two blocks of a monovinylaromatic hydrocarbon, being of the general formula: S1—B1—S2—B2 wherein B1 is a block of polymerized conjugated diene comprising at least 50 mole % isoprene having an apparent molecular weight of from 180,000 to 400,000, S1 and S2 are blocks of polymerized monovinylaromatic hydrocarbon having a weight average molecular weight of 12,000 to 40,000, and B2 is a block of polymerized conjugated diene comprising at least 50 mole % isoprene having an apparent molecular weight of from 15,000 to 60,000; wherein the weight ratio W of B1 over B2 is in the range of 3.0 to 12.0; and wherein the content of polymerized monovinylaromatic hydrocarbon is in the range from 10 to 35 wt. %.Type: GrantFiled: March 24, 2003Date of Patent: September 18, 2007Assignee: Kraton Polymers U.S. LLCInventors: Eric A. T. Trommelen, Martin C. van Dijk
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Patent number: 7247664Abstract: 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: GrantFiled: June 13, 2005Date of Patent: July 24, 2007Assignee: Kraton Polymers U.S. LLCInventors: Gerardus Wilhelmus Jozef Heimerikx, Erik Adrianus Theunis Trommelen
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Patent number: 7241821Abstract: 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: GrantFiled: August 10, 2004Date of Patent: July 10, 2007Assignee: Marathon Ashland Petroleum LLCInventors: Roger E. Hayner, Patricia K. Doolin, Robert H. Wombles
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Patent number: 7241818Abstract: 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: GrantFiled: February 28, 2005Date of Patent: July 10, 2007Assignee: Boral Material Technologies, Inc.Inventors: Raymond T. Hemmings, Russell L. Hill, Bruce J. Cornelius
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Patent number: 7205344Abstract: 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: GrantFiled: May 7, 2004Date of Patent: April 17, 2007Assignee: General Electric CompanyInventors: Alan E. Goliaszewski, Paul R. Hart, Fang Deng, Ping Lue
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Patent number: RE41167Abstract: 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: GrantFiled: November 26, 2008Date of Patent: March 23, 2010Assignee: Westlake Longview CorporationInventors: Richard Kingsley Stuart, Jr., Jeffery Lynn Presley, Louis Thomas Germinario