Fibrous Patents (Class 106/282)
  • Patent number: 10450752
    Abstract: Embodiments of the invention provide roofing boards and roofing systems having improved fire resistance properties and methods related to the same. According to one aspect, a roofing system is provided. The roofing system includes roofing panels positioned atop structural support members to form a roof deck. Roofing boards are positioned atop the roof deck and coupled thereto and a roofing membrane is positioned atop the roofing boards and coupled therewith. The roofing boards include a coating of a mineral based material applied to one or more surfaces in an amount between the range of about 0.10 lbs/ft2 and about 0.70 lbs/ft2. The mineral based material coating enables the roofing boards to pass the UL 790 class A tests, such as the burning brand test.
    Type: Grant
    Filed: February 27, 2017
    Date of Patent: October 22, 2019
    Assignee: Johns Manville
    Inventors: Duane Paradis, Guodong Zheng
  • Patent number: 10060080
    Abstract: A void reducing asphalt membrane composition for asphalt pavements that includes: an asphalt binder; an elastomeric polymer; a wax modifier; and at least one of: i) fumed silica or fumed alumina; and ii) a saponified fatty acid and a resin acid gelling compound. The composition is resistant to flow when applied and migrates into hot mix asphalt in the area of the longitudinal joint to reduce air voids to 7% or less and reduce water permeability. The composition becomes tack-free quickly after application. The composition bonds to asphalt, concrete, brick, stone and metal.
    Type: Grant
    Filed: July 11, 2017
    Date of Patent: August 28, 2018
    Assignee: Heritage Research Group
    Inventors: Anthony J. Kriech, Herbert L. Wissel, Timothy P. Reece, Marvin Keller Exline
  • Patent number: 9834895
    Abstract: A system and method for monitoring and adjusting a constant flow asphalt manufacturing process includes monitoring the ratios of recycled material to virgin material to minimize costs and adjusting the mixture in real time. Pulverized asphalt shingle (PAS) material may be used as a source of recycled asphalt oil and fed to a mixing drum with real-time monitoring while making real-time adjustments to supplement the asphalt with new asphalt oil to the mixer. The systems and methods may also be used for monitoring, metering, and supplementing recycled aggregate from recycled asphalt pavement (RAP) with new aggregate. The systems and methods may use one or more processors or programmable logic controllers (PLC) to meter the addition of new materials.
    Type: Grant
    Filed: December 29, 2016
    Date of Patent: December 5, 2017
    Assignee: Energy Creates Energy LLC
    Inventor: Jack Elvis Neel
  • Patent number: 9682494
    Abstract: Colloidal mixing of cementitious material into a liquid such as water to form a grout slurry for pumping to a location for use includes a mixing tank and a colloidal mixing mill which grinds and pumps the mixed material with the material being repeatedly circulated between the mill and the tank. The colloidal mixing mill includes a housing defining a generally cylindrical chamber containing a rotor shaped to define a clearance of the order of 3 mm between the front and rear wall of the housing and the rotor with holes from a dished front face of the rotor to the rear face to carry the mixed materials to the clearance where a shearing action takes place to shear the particles in the mixed materials prior to exit through the outlet.
    Type: Grant
    Filed: March 20, 2014
    Date of Patent: June 20, 2017
    Assignee: Amix Systems Ltd.
    Inventor: Dennis M. Arbour
  • Patent number: 9412986
    Abstract: Micro-fibrillated cellulose nanofibers (or other suitable fibrillated organic polymer nanofibers) are dispersed with ceramic particles (such as alumina or silica powder) in water suspension and formed into a suitable porous mat shape by wet-laying the suspension on a suitable mesh structure. After removal of the mat from the mesh and drying, the suitably proportioned cellulose nanofibers/ceramic powder composite may be coated with a thin porous polymer layer to further fix the particles between the fibers and strengthen the resulting composite membrane for use as a separator layer between the electrode layers of an electrochemical cell. The strength and temperature resistance of the composite separator layer make it particularly useful in lithium-ion batteries for vehicle traction motors.
    Type: Grant
    Filed: July 31, 2013
    Date of Patent: August 9, 2016
    Assignee: GM Global Technology Operations LLC
    Inventor: Xiaosong Huang
  • Patent number: 8658252
    Abstract: The present invention has for its object a prefabricated sealing membrane formed by a support, coated on at least one surface, and preferably impregnated throughout, with a modified bitumen base composition, characterized in that the thermoplastic bituminous composition for coating and/or impregnation is a bituminous binder modified by a thermoplastic polyurethane having the following weight proportion: 40 to 90% bitumen, 10 to 50% thermoplastic polyurethane, 0 to 10% aromatic oil, 0 to 50% filler, 0 to 0.5% catalyst.
    Type: Grant
    Filed: April 23, 2008
    Date of Patent: February 25, 2014
    Assignee: Soprema
    Inventors: Pierre Etienne Bindschedler, Remi Perrin, Corinne Schall, Arnaud Nouri
  • Patent number: 8496749
    Abstract: The present invention relates to bitumen additive mixtures, their use and application for the fabrication of asphalt mixtures used in pavement and waterproofing, and more specifically for construction, repair and maintenance of sidewalks, roads, highways, parking lots or airport runaways and service roads and any other rolling surfaces.
    Type: Grant
    Filed: July 6, 2010
    Date of Patent: July 30, 2013
    Assignee: CECA S.A.
    Inventors: Juan Antonio Gonzalez Leon, Gilles Barreto, Vincent Luca, Eric Jorda
  • Patent number: 8349065
    Abstract: The present invention is related to asphalt and asphalt-mineral compositions including at least one cationic organosilicon compound selected from a group consisting of: Y3-aSi(R1a)R2N+R3R4R5X?, Y3-aSi(R1a)R2P+R3R4R5X?, Y3-aSi(R1a)R2ZX?; or mixtures thereof, wherein in each formula Y is independently selected from a group consisting of OR, O(CH2CH2O)nH, (CH3OCH2CH2O), and (CH3CH2OCH2CH2O); a has a value selected from 0, 1 or 2; n is a value from 1 to 10; R is C1-C4 alkyl; R1 is either methyl or ethyl; R2 is C1-C4 alkylene group; R3, R4 and R5 are each independently selected from a group consisting of C1-C22 alkyl wherein at least one such group has more than 8 C-atoms, —CH2C6H5, —CH2CH2OH, —CH2OH and —(CH2)yNHC(O)R6 wherein y has a value of from 2 to 10 and R6 is a C1-C12 perfluoroalkyl radical; X is chloride, bromide, fluoride, iodide, acetate or tosylate; and Z is pyridinium ring of formula C5H5N+.
    Type: Grant
    Filed: December 15, 2009
    Date of Patent: January 8, 2013
    Assignee: Zydex Industries
    Inventors: Ajay Ranka, Prakash Mehta
  • Patent number: 8257483
    Abstract: A bituminous cold glue for cold gluing of construction material and comprising at least 35% by weight of bitumen and at least 10% by weight of oil, and further comprising clay and a dispersing agent, said oil being a vegetable oil compound, based on a carbon chain comprising at least one of the C6 to C12 carbon atoms and further comprising between 0.1 and 5% by weight of a solvent.
    Type: Grant
    Filed: January 15, 2010
    Date of Patent: September 4, 2012
    Assignee: S.A. Imperbel N.V.
    Inventors: Hans Aerts, Eric Bertrand, Michel Getlichermann
  • Patent number: 8192539
    Abstract: Embodiments of the invention provide method for preparing mixtures of natural or artificial zeolite with at least one of recycled asphalt shingles and recycled asphalt pavement. The prepared mixtures are also within the scope of the invention. Mixtures prepared as described herein may be useful, for example, for mixture with hot mix asphalt and cold patch asphalt.
    Type: Grant
    Filed: May 19, 2011
    Date of Patent: June 5, 2012
    Assignee: PQ Corporation
    Inventors: Scott Barger, Armando Sotelo, Daniel Micco, Flavio Ernesto Ribeiro
  • Patent number: 8137451
    Abstract: A bituminous glue for cold gluing of construction material and comprising an amount of non-polymerized oil, said glue comprises at least 35% by weight of bitumen, said glue further comprising clay and a dispersing agent, said amount of non-polymerized oil forming between 5 and 30% by weight of said glue and being not mixed with polymerized oil.
    Type: Grant
    Filed: October 30, 2008
    Date of Patent: March 20, 2012
    Assignee: S.A. Imperbel N.V.
    Inventors: Hans Aerts, Eric Bertrand, Michel Getlichermann
  • Patent number: 7857988
    Abstract: The present invention relates to a sound deadener melt pad composition, wherein the composition includes an asphalt, EVA H2020, a oil palm fiber, a hydraulic lime and an oil palm olein.
    Type: Grant
    Filed: November 21, 2008
    Date of Patent: December 28, 2010
    Assignee: Malaysian Palm Oil Board (MPOB)
    Inventors: Ridzuan bin Ramli, Mohd Basri bin Wahid, Nasrin bin Abu Bakar, Robaya bt Mohamed Halim, Ravindranathan a/l N. Narayana Menon, Astimar bt Abd Aziz
  • Patent number: 7816001
    Abstract: The invention relates to an insulation material board composed of a wood material/binder fiber mixture and to a method for producing an insulation material board, in which an additive with a thermally resistant core and with a thermally activatable coating is added to the mixture, and the thermally activatable coating is activated by the supply of heat. An insulation material board may be composed of a wood material/binder mixture, including an additive having thermosetting and thermoplastic portions, wherein the thermosetting portion is a thermosetting plastic that forms a core and the thermoplastic portion forms a thermally activatable coating that at least partially encloses the core.
    Type: Grant
    Filed: June 20, 2008
    Date of Patent: October 19, 2010
    Assignee: Kronotec AG
    Inventor: Cevin Marc Pohlmann
  • Publication number: 20100196697
    Abstract: Reinforcing fibers with small particles having a longest average dimension of approximately 0.01 nanometer to approximately 30 micrometers physically and/or chemically bonded directly to their surfaces to form protuberances thereon and a method and system for making these modified fibers are disclosed. The particles directly bonded to the surfaces of the fibers, serve to enhance physical properties of composite articles which incorporate such fibers as reinforcement.
    Type: Application
    Filed: April 5, 2010
    Publication date: August 5, 2010
    Inventors: Sean Charles D'Silva, Thomas E. Burghardt
  • Patent number: 7691195
    Abstract: Compositions of discrete substances that are capable of being mixed together to form a composite material and methods for making the compositions are disclosed. The composition includes a plurality of pellets of a tacky, deformable material at an ambient temperature dispersed within a flowable fine material. The fine material occupies the interstices between the plurality of pellets in a manner that minimizes pellet to pellet contact.
    Type: Grant
    Filed: June 26, 2006
    Date of Patent: April 6, 2010
    Inventor: Steve A. Fox
  • Patent number: 7550202
    Abstract: The invention relates to an insulation material board composed of a wood material/binder fiber mixture and to a method for producing an insulation material board, in which an additive (3, 4) with a thermally resistant core (4) and with a thermally activatable coating (3) is added to the mixture, and the thermally activatable coating (3) is activated by the supply of heat.
    Type: Grant
    Filed: March 10, 2005
    Date of Patent: June 23, 2009
    Assignee: Kronotec AG
    Inventor: Cevin Marc Pohlmann
  • Publication number: 20080141898
    Abstract: Improved mopping grade asphalt compositions and methods of preparing them. Methods according to the invention include mixing asphalt with a gelling agent such as attapulgite or other clay and with thixotropic agents such as synthetic or organic fillers, and optionally with one or more of ether amine or other surfactants. Thixotropic agents may for example include cellulose fibers, polyolefin fibers, and mineral wool. The asphalt compositions are mixed in a shearing mixer at a temperature high enough to provide substantially uniform dispersion of each of the mixed ingredients in the completed composition. Inventive compositions provide viscosities suitable for application at 200-350 degrees Fahrenheit or lower, excellent adhesion, and superior sag resistance.
    Type: Application
    Filed: October 7, 2004
    Publication date: June 19, 2008
    Inventor: John R. Fields
  • Patent number: 7384469
    Abstract: A porous elastic pavement material is provided which is excellent in noise reducing effect and yet sustainably has a wet state slip resistance for a long period of time. The porous elastic pavement material comprises elastic aggregates (1), hard aggregates (2) and a binder (3) which binds the elastic aggregates (1) and the hard aggregates (2), wherein the hard aggregates (2) have an average particle diameter of 0.2 to 2 mm, and are present in a proportion of 25 to 65 vol % based on the elastic aggregates (1).
    Type: Grant
    Filed: March 24, 2006
    Date of Patent: June 10, 2008
    Assignee: Tokai Rubber Industries, Ltd.
    Inventors: Koki Matsuoka, Toshiaki Imaeda
  • Patent number: 7374816
    Abstract: The present invention has for its object a prefabricated sealing membrane formed by a support, coated on at least one surface, and preferably impregnated throughout, with a modified bitumen base composition, characterized in that the thermoplastic bituminous composition for coating and/or impregnation is a bituminous binder modified by a thermoplastic polyurethane having the following weight proportion: 40 to 90% bitumen, 10 to 50% thermoplastic polyurethane, 0 to 10% aromatic oil, 0 to 50% filler, 0 to 0.5% catalyst.
    Type: Grant
    Filed: September 11, 2003
    Date of Patent: May 20, 2008
    Assignee: Soprema
    Inventors: Pierre Etienne Bindschedler, Remi Perrin, Corinne Schall, Arnaud Nouri
  • Patent number: 7306666
    Abstract: Additives and methods for reducing or eliminating odor in oil based media. The additives comprise an essential oil, an essential oil component, or mixtures thereof.
    Type: Grant
    Filed: March 8, 2006
    Date of Patent: December 11, 2007
    Assignee: Odor Management, Inc.
    Inventors: Charles Timcik, John Fergeus
  • Patent number: 7066997
    Abstract: A method of making the saturated aircraft brake preform using a coal tar pitch having a softening point in the range of about 160° C. to 240° C. Also, a product having natural rubber in the formulation and the method of making the product using a coal tar pitch having a softening point in the range of about 140° C. to 200° C. A mesophase pitch is formed from quinoline insoluble free coal tar pitch distillate from a high efficiency evaporative distillation process.
    Type: Grant
    Filed: May 9, 2002
    Date of Patent: June 27, 2006
    Assignee: Koppers Delaware, Inc.
    Inventors: Thomas A. Golubic, Kenneth C. Krupinski, William E. Saver, David R. Snyder, Robert H. Wombles
  • Patent number: 6846355
    Abstract: A road paving material includes an aggregate, asphalt, and fine ceramic particles selected from the group consisting of RBC particles, CRBC particles, and mixtures thereof.
    Type: Grant
    Filed: June 18, 2003
    Date of Patent: January 25, 2005
    Assignee: Minebea Co., Ltd.
    Inventors: Kazuo Hokkirigawa, Noriyuki Yoshimura, Jun Hirose
  • Patent number: 6817152
    Abstract: The invention relates to a coated fiber mat of improved tear strength upon dividing pieces of the coated mat and the coating which comprises a cured, non-woven, fiber glass mat containing a polysiloxane wherein the fibers are fixedly distributed in a formaldehyde type binder containing a binder modifier which is a crosslinked styrene/acrylic polymer, and to a process for the preparation of the mat.
    Type: Grant
    Filed: September 18, 2003
    Date of Patent: November 16, 2004
    Assignee: Building Materials Investment Corporation
    Inventors: Qinyun Peng, Krishna Srinivasan
  • Publication number: 20040221769
    Abstract: A road paving material includes an aggregate, asphalt, and fine ceramic particles selected from the group consisting of RBC particles, CRBC particles, and mixtures thereof.
    Type: Application
    Filed: June 18, 2003
    Publication date: November 11, 2004
    Applicant: Minebea Co., Ltd.
    Inventors: Kazuo Hokkirigawa, Noriyuki Yoshimura, Jun Hirose
  • Patent number: 6790395
    Abstract: A method for producing a thermoplastic filler for eliminating surface damage to concrete or asphalt surface is disclosed which includes mixing stone chips, sand, a powdered material and a bituminous binding agent to a homogenous mixture which is in constant motion at a temperature of between about 180° C.-2400° C., with a coolant being added subsequently to the mixture in a rapid manner thereby converting the mixture into a non-cohesive granulate of small pellets due to the high surface tension of the various constituents, and wherein the granulate can be heated to convert it to a free-flowing or spreadable filler having strong adhesive properties.
    Type: Grant
    Filed: September 3, 2002
    Date of Patent: September 14, 2004
    Inventors: Rainer Hart, Darco Kunsic
  • Patent number: 6758892
    Abstract: The present invention relates to stone mastic asphalt compounds which are produced using a new technique and process. The process utilizes a specific aggregate gradation and matrix for high stability. Specially formulated fiber mastic asphalt is used to hold the aggregate in place while providing extended durability. This formulation is able to handle heavy loading from commercial vehicles and thus minimize pavement surface distresses. The use of the present invention is expected to reduce the cost of materials by about 15 to 20 percent.
    Type: Grant
    Filed: June 18, 2001
    Date of Patent: July 6, 2004
    Assignee: Universiti Putra Malaysia
    Inventor: Ratnasamy Muniandy
  • Patent number: 6562118
    Abstract: A method is described for the modification of asphaltic compositions such that cellulosic fibers are not degraded by the asphalt at elevated temperatures. This is achieved by the addition of addition of certain inorganic or organic alkaline materials to the composition. As a further embodiment of the invention, a method is also described for the dispersion of cellulosic fibers in liquid asphalt in such a way as to obtain a thermally stable product with defined viscoelastic properties. This comprises blending the fibers with asphalt, fibers and alkaline additives under controlled mixing conditions such that the required viscometric specification is attained.
    Type: Grant
    Filed: March 6, 2001
    Date of Patent: May 13, 2003
    Assignee: Lafarge Materials & Construction Inc.
    Inventor: Graham Hagens
  • Patent number: 6544911
    Abstract: The invention relates to a coated fiber mat of improved tear strength upon dividing pieces of the coated mat and the coating which comprises a cured, non-woven, fiber glass mat containing a polysiloxane wherein the fibers are fixedly distributed in a formaldehyde type binder containing a binder modifier which is a crosslinked styrene/acrylic polymer, and to a process for the preparation of the mat.
    Type: Grant
    Filed: January 12, 2001
    Date of Patent: April 8, 2003
    Assignee: Building Materials Investment Corporation
    Inventors: Qinyun Peng, Krishna Srinivasan
  • Patent number: 6488755
    Abstract: Asphalt compositions as well as asphalt paving compositions are improved by the inclusion of coated mesophase pitch carbon fibers having wax or waxy coatings to such compositions. Uses of such asphalt compositions, particularly with aggregates to form asphalt paving compositions are also disclosed.
    Type: Grant
    Filed: August 9, 2002
    Date of Patent: December 3, 2002
    Assignee: Conoco Inc.
    Inventors: Paul E. Seyler, Stephen D. Harris, John Byron Sudbury, Jeff D. Meyers
  • Patent number: 6461542
    Abstract: A fire resistant composition comprises a quantity of cellulosic debris formed to be spread as a ground cover, and an asphalt-containing material mixed with the cellulosic debris. The asphalt-containing material comprises at least 35 wt % of the composition. Preferably, the asphalt-containing material is formed from asphalt roofing shingles. The cellulosic debris may be wood waste or other suitable materials formed into chips or other particles suitable for spreading as a ground cover. A method for forming a fire resistant composition comprised of cellulosic debris and an asphalt-containing material is also disclosed.
    Type: Grant
    Filed: May 4, 2000
    Date of Patent: October 8, 2002
    Assignee: RoofGone, Inc.
    Inventors: Darold A. Smith, Anthony M. Hall, Geri K. Brown
  • Publication number: 20020108534
    Abstract: The present invention relates to stone mastic asphalt compounds which are produced using a new technique and process. The process utilizes a specific aggregate gradation and matrix for high stability. Specially formulated fiber mastic asphalt is used to hold the aggregate in place while providing extended durability. This formulation is able to handle heavy loading from commercial vehicles and thus minimize pavement surface distresses. The use of the present invention is expected to reduce the cost of materials by about 15 to 20 percent.
    Type: Application
    Filed: June 18, 2001
    Publication date: August 15, 2002
    Inventor: Ratnasamy Muniandy
  • Patent number: 6398976
    Abstract: A single ply membrane roofing system includes a roofing insulation board which, preferably, is at least 45% by dry weight expanded perlite. One major surface of the insulation board is coated with a latex coating comprising, by dry weight, between 48.3% and 96% clay; between 3.1% and 33.3% latex; and between 0% and 34% sodium silicate. A single ply roofing membrane is adhered to the coated major surface of the insulation board with a roofing contact adhesive.
    Type: Grant
    Filed: September 20, 2000
    Date of Patent: June 4, 2002
    Assignee: Johns Manville International., Inc.
    Inventors: Christopher Paul Sandoval, Mary Margaret Georgene Bauer, Craig Donald DePorter, Mauro Vittorio Battaglioli
  • Publication number: 20010047738
    Abstract: A method is described for the modification of asphaltic compositions such that cellulosic fibers are not degraded by the asphalt at elevated temperatures This is achieved by the addition of addition of certain inorganic or organic alkaline materials to the composition. As a further embodiment of the invention, a method is also described for the dispersion of cellulosic fibers in liquid asphalt in such a way as to obtain a thermally stable product with defined viscoelastic properties. This comprises blending the fibers with asphalt, fibers and alkaline additives under controlled mixing conditions such that the required viscometric specification is attained.
    Type: Application
    Filed: March 6, 2001
    Publication date: December 6, 2001
    Inventor: Graham Hagens
  • Patent number: 6177024
    Abstract: A single ply membrane roofing system includes a roofing insulation board which, preferably, is at least 45% by dry weight expanded perlite. One major surface of the insulation board is coated with a latex coating comprising, by dry weight, between 48.3% and 96% clay; between 3.1% and 33.3% latex; and between 0% and 34% sodium silicate. A single ply roofing membrane is adhered to the coated major surface of the insulation board with a roofing contact adhesive.
    Type: Grant
    Filed: February 14, 2000
    Date of Patent: January 23, 2001
    Inventors: Christopher Paul Sandoval, Mary Margaret Georgene Bauer, Craig Donald DePorter, Mauro Vittorio Battaglioli
  • Patent number: 6159278
    Abstract: The invention relates to the manufacturing of a castable hot mixture of bituminous concrete, in which a multiplicity of steel wire pieces are equally distributed in the mixture. According to the invention, an ingredient is used in the form of a multiplicity of bundles in which the wire pieces are held together by a binding substance that is able to disintegrate in cementitious concrete, as already known, but that in addition is disintegrated by melting, in such a way that such bundles are usable for both cementitious and bituminous concretes.
    Type: Grant
    Filed: April 1, 1992
    Date of Patent: December 12, 2000
    Assignee: N.V. Bekaert S. A.
    Inventors: Dirk Nemegeer, Yves Vancraeynest
  • Patent number: 6149831
    Abstract: An insulation board suitable for use as a roof insulating board has a density between about 8 and about 15 pounds per cubic foot; a MOR/density ratio of at least 10.5 to 1 and includes, by dry weight, between about 45% and about 76% expanded perlite; between about 15% and about 45% cellulosic fibers; between about 0.1% and about 10% latex binder; between about 2% and about 9% bituminous material; and about 0% to about 3% alum.
    Type: Grant
    Filed: February 18, 1999
    Date of Patent: November 21, 2000
    Assignee: Johns Manville International, Inc.
    Inventors: Craig Donald DePorter, Steven Douglas Dawson, Mauro Vittorio Battaglioli, Christopher Paul Sandoval
  • Patent number: 6010566
    Abstract: The invention relates to the manufacturing of a castable hot mixture of bituminous concrete, in which a multiplicity of steel wire pieces are equally distributed in the mixture. According to the invention, an ingredient is used in the form of a multiplicity of bundles in which the wire pieces are held together by a binding substance that is able to disintegrate in cementitious concrete, as already known, but that in addition is disintegrated by melting, in such a way that such bundles are usable for both cementitious and bituminous concretes.
    Type: Grant
    Filed: April 1, 1992
    Date of Patent: January 4, 2000
    Inventors: Dirk Nemegeer, Yves Vancraeynest
  • Patent number: 5749954
    Abstract: A perlite-based insulation board includes, by dry weight, between about 50% and about 76% expanded perlite; between about 15% and about 45% fibers; between about 1% and about 5% starch; between about 2% and about 9% bituminous material; and about 0% to about 3% alum. The fibers are between about 50% and about 95% by dry weight recycled newsprint fibers and between about 5% and about 50% by dry weight virgin cellulose fibers, such as flax and/or peanut hull fibers. In one embodiment, the virgin cellulose fibers are, by dry weight, between about 10% and 40% flax fibers and about 60% and 90% peanut hull fibers.
    Type: Grant
    Filed: July 15, 1996
    Date of Patent: May 12, 1998
    Assignee: Johns Manville International, Inc.
    Inventors: David Chee-Fai Law, Christopher Paul Sandoval, Ruben G. Garcia
  • Patent number: 5711796
    Abstract: Bituminous compositions of enhanced physical/performance properties comprising an oxidation product of a naturally occurring asphalt from the Orinoco Belt of Venezuela and the bitumen base material, and methods for their preparation.
    Type: Grant
    Filed: October 16, 1995
    Date of Patent: January 27, 1998
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Kenneth Francis Grzybowski, David Reese Jones, IV, William Russell Welliver, Timothy Jay Roth
  • Patent number: 5665154
    Abstract: The invention provides polyolefin staple fibers especially useful for reinforcing pavement. The fibers have applied to their surface an amount of an antistatic finish sufficient to prevent the build-up of static electric charges when the staple fibers are fluidized or blown, and so diminish the resultant clumping of the blown fibers, while avoiding degradation of the nature of the fiber to adhere to paving compositions, and maintaining the adherence of the fibers to the pavement cement.
    Type: Grant
    Filed: November 15, 1996
    Date of Patent: September 9, 1997
    Assignee: Hercules Incorporated
    Inventor: James P. Modrak
  • Patent number: 5626659
    Abstract: The present invention is directed to means and method for grinding waste asphalt shingles in combination with limestone ore to provide a very fine particulate substance that is suitable as an admix to raw materials used for asphalt shingle production. When grinding the asphalt shingles/limestone ore combination, it was found that the limestone scrubs the asphalt, including temperature softened asphalt, from the grinding mechanism and therefore prevents clogging of the asphalt/limestone ore grinding equipment. According to the teachings of the invention, the limestone and asphalt shingle constituents can be ground into fine homogeneous particulate powder that is free of agglomeration. A desired size reduction was achieved. Ninety-eight percent of the homogenous particulate powder passed through a thirty-five mesh screen.
    Type: Grant
    Filed: February 14, 1996
    Date of Patent: May 6, 1997
    Inventor: Morgan A. Chivers
  • Patent number: 5573586
    Abstract: Asbestos-free asphalt cold application roofing compositions are made available through the controlled utilization of fly ash.
    Type: Grant
    Filed: January 19, 1996
    Date of Patent: November 12, 1996
    Assignee: Gardner Asphalt Corporation
    Inventors: Michael L. Yap, Raymond T. Hyer, Barton J. Malina
  • Patent number: 5564856
    Abstract: The invention provides melt-spun polyolefin/polyarylate alloy fibers having an elevated softening point. These fibers are useful in staple lengths for the reinforcement of synthetic geoways (e.g., roadways, runways), especially those fabricated from asphalt-based pavements. The improved softening point of the fibers allows their incorporation into the hot-mix pavement used to fabricate and repair such surfaces without degradation of the fibers by the elevated temperatures found in plants for these manufacture of hot-mix pavements. This invention also provides an improved process for making melts of such allows.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: October 15, 1996
    Assignee: Hercules Incorporated
    Inventor: James P. Modrak
  • Patent number: 5460649
    Abstract: The invention provides a fiber-reinforced rubber asphalt concrete composition suitable for paving applications and a method of making the composition. Also provided is a method for converting a conventional asphalt plant to one capable of producing the fiber-reinforced rubber asphalt concrete composition of the invention and an apparatus suitable for doing same.
    Type: Grant
    Filed: June 6, 1994
    Date of Patent: October 24, 1995
    Inventor: David R. Strassman
  • Patent number: 5431727
    Abstract: A bituminous mixture, comprising from 0.5 to 20% by weight mineral wool in admixture with bitumen, the fibers of said mineral wool prior to any chemical or mechanical treatment, being equal to at most 7 per 5 grams, and said fibers being treated with a non-ionic finish.
    Type: Grant
    Filed: April 16, 1994
    Date of Patent: July 11, 1995
    Assignee: Isover Saint-Gobain
    Inventors: Gerard Basin, Patrick Le Breton
  • Patent number: 5397389
    Abstract: A composition for the fixation of hydrocarbons from contaminated oily soil and hazardous wastes. The hazardous waste and contamined oily soil are components in a cold mix asphaltic concrete. The soil and hazardous materials are mixed with asphaltic roof cuttings and mineral aggregate to form the mixture. The mixture is coated with a cold mix emulsion to form an asphaltic concrete. The hydrocarbons and hazardous wastes do not leach from the set concrete.
    Type: Grant
    Filed: March 2, 1994
    Date of Patent: March 14, 1995
    Assignee: American Reclamation Corp.
    Inventor: John J. Glynn, Jr.
  • Patent number: 5395439
    Abstract: A bituminous mixture, comprising from 0.5 to 20% by weight mineral wool in admixture with bitumen, the fibers of said mineral wool prior to any chemical or mechanical treatment, being equal to at most 7 per 5 grams, and said fibers being treated with a non-ionic finish.
    Type: Grant
    Filed: December 9, 1992
    Date of Patent: March 7, 1995
    Assignee: Saint Gobain Recherche
    Inventors: Gerard Basin, Patrick Le Breton
  • Patent number: 5344485
    Abstract: Contaminated oily soil is used as a component in a cold mix asphaltic concrete. The soil is mixed with asphalt roof cuttings containing fibers and mineral aggregate to form a mixture. This mixture is coated with a cold mix emulsion to form an asphaltic concrete. The hydrocarbons do not leach from the set concrete.
    Type: Grant
    Filed: November 19, 1992
    Date of Patent: September 6, 1994
    Assignee: American Reclamation Corp.
    Inventor: John L. Glynn, Jr.
  • Patent number: 5340391
    Abstract: Improved cold-applied asphalt compositions for use as sealants, cements, coatings and the like, including recycled asphalt roofing wastes, and asphalt. Recycled roofing wastes provide an excellent, although unexpected, source of temperature-stable asphalt, stabilizing filler, and reinforcing fiber, which provides compositions having exceptional performance characteristics as well as the reduction or elimination of asbestos from such compositions. Use of asphalt roofing wastes allows for recycling of a non-renewable resource and provides an environmentally-safe alternative to landfill disposal of such materials.
    Type: Grant
    Filed: March 11, 1993
    Date of Patent: August 23, 1994
    Assignee: ReClaim, Inc.
    Inventor: Ken F. Grzybowski
  • Patent number: 5296025
    Abstract: In a process for preparing asphalt mixes charged with fibrous materials, the fibrous materials are introduced directly and continuously into the liquid asphalt in a drum, before or after contacting of the liquid asphalt with inert materials.
    Type: Grant
    Filed: April 6, 1992
    Date of Patent: March 22, 1994
    Assignee: Isover Saint-Gobain
    Inventors: Gerard Basin, Patrick Le Breton