Did You Know...
...that the x-ray was discovered purely by accident? When German physicist Wilhelm Konrad von Roentgen was experimenting with cathode rays in 1895, he put an activated Crookes tube in a book and went out to lunch. When he returned, he discovered that a key that had also been placed in the book showed up as an image on the developed film!
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| Number | Title | Issue Date |
| 7417082 | Modified asphalt binder material using crosslinked crumb rubber and methods of manufacturing the modified asphalt binder 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 rub... | 08/26/2008 |
| 7393449 | Petroleum hydrocarbon binder with reduced polycyclic aromatic hydrocarbon content A binder pitch material includes a petroleum pitch and asphalt fraction obtained from petroleum crude oil and has a significantly lower polycyclic aromatic hydrocarbon composition than a coal tar pitch having a like softening point. The pitch material is useful as a... | 07/01/2008 |
| 7387674 | Method for solidifying soil and industrial waste, and solidified materials prepared thereby Disclosed herein are a method for solidifying soil and industrial waste and a solidified material prepared thereby. The solidified material of soil and industrial waste is prepared by adding 2-6 parts by weight of a 3-5-fold dilution of a solidifying agent and 3-15 ... | 06/17/2008 |
| 7374816 | Prefabricated membrane based on modified polyurethane bituminous binder and process for production 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 composi... | 05/20/2008 |
| 7329399 | Hydrogen trapper compound, method for the production and uses thereof A hydrogen-trapping compound is provided, along with a process for manufacturing the compound, and its uses, wherein the hydrogen-trapping compound is characterized in that it contains at least one metal salt of formula MX(OH), in which M represents a divalent trans... | 02/12/2008 |
| 7306666 | Additives and method for reducing odor 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. ... | 12/11/2007 |
| 7275890 | Cold in-place recycling of bituminous material A method of reconstructing a road is provided. This method includes taking representative cores of the road, analyzing the cores, selecting a substantially solvent-free emulsion based on climate history, mixing the emulsion and reclaimed asphalt pavement particles t... | 10/02/2007 |
| 7235673 | Glycolide production process, and glycolic acid oligomer for glycolide production The invention relates to a glycolide production process wherein a depolymerization reaction system comprising a glycolic acid oligomer or a glycolic acid oligomer and a polar organic solvent is heated to depolymerize the glycolic acid oligomer into glycolide, the re... | 06/26/2007 |
| 7226500 | Additive for heating asphalt The invention provides an additive for heated asphalt that can further improve a peeling prevention effect between asphalt and aggregates. The invention relates to an additive which is added to heated asphalt containing a particular gallic acid ester with or combina... | 06/05/2007 |
| 7150785 | High performance asphalt using alkyl aromatic sulfonic acid asphaltene dispersants Disclosed is a high performance asphalt comprising a mixture of low to moderate performance asphalt with linear or branch chain alkyl substituted aromatic sulfonic acid. The high performance asphalt is made by mixing the low to moderate performance asphalt with 1 to... | 12/19/2006 |
| 7134806 | Repairing road surfaces A method of repairing a road surface includes providing a hopper mounted on a spreading vehicle and means to spread material carried in the hopper over depressed areas of the road surface to fill them with the material. At ambient temperature, a batch of patching sl... | 11/14/2006 |
| RE39289 | Apparatus and process for manufacturing asphalt An improved process for making asphalt involves incorporating tar sands into a hot asphalt mix process and modifying the process. The improved process involves using a heated asphalt counter-flow drum mixer to admix asphaltic cement, coarse aggregate, and fine aggre... | 09/19/2006 |
| 7101628 | Thermoplastic vulcanizate and membrane for covering a roof made therefrom Broadly, the present invention provides a thermoplastic vulcanizate which can be readily processed into sheeting material for covering a roof that is both flexible and highly elastic. Where other thermoplastic elastomeric compositions have either been too stiff to a... | 09/05/2006 |
| 7101493 | Method and composition for suppressing coal dust A method and composition for suppressing coal dust include a metal-containing compound, such as an organo-manganese, that provides the additional benefit of being a combustion improver. The organometallic compound is mixed with any appropriate dust suppressant liqui... | 09/05/2006 |
| 7097703 | Use of anti-strip agents to improve wear characteristics of pavement sealer A sealer base comprising at least one anti-wear agent comprising aliphatic carboxylic acids and aliphatic polyamides is disclosed. ... | 08/29/2006 |
| 7081492 | Ambient temperature anhydrous liquid cross-linking agent An air hydrous cross-linking compound which is liquid at ambient temperature. The cross-linking compound includes at least one element chosen from Group VI-A of the periodic table of elements and a natural or synthetic polymer. ... | 07/25/2006 |
| 7066997 | Coal tar and hydrocarbon mixture pitch and the preparation and use thereof 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 ha... | 06/27/2006 |
| 7048990 | Dual layer shingle A shingle formed from a base sheet, with a layer of polymer modified asphalt coating the top of the base sheet, and a layer of conventional oxidized asphalt, free from polymer additives, coating the bottom of the base sheet. Both layers preferably directly contact t... | 05/23/2006 |
| 7037955 | Additives and methods for reducing odor 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. ... | 05/02/2006 |
| 7012116 | Blend compositions of an unmodified poly vinyl alcohol and a thermoplastic elastomer This invention relates, in general, to blend compositions of an unmodified poly vinyl alcohol and a thermoplastic elastomer and thermoplastic film and fiber structures comprising these blend compositions. More specifically, this invention relates to substantially wa... | 03/14/2006 |
| 7001453 | Method of selecting a high modulus layer binder A method of selecting an asphalt binder for use in constructing a high modulus layer of bituminous pavement is provided. This method includes measuring the complex shear modulus of one or more binders at a temperature of not more than about 30° C., measuring the cr... | 02/21/2006 |
| 6987207 | Hydrocarbonaceous composition The present invention relates to a composition, comprising: (A) an odor-emitting hydrocarbonaceous material; and (B) an odor-suppressing amount of an additive composition comprising soy methyl ester, at least one aldehyde and/or at least one ketone, and at least one... | 01/17/2006 |
| 6972047 | Incorporation of gilsonite into asphalt compositions It has been discovered that a synthetic flux oil can contain and deliver asphaltites, such as gilsonite, more easily and readily to an asphalt to improve its properties. The synthetic flux oil includes the asphaltite and a carrier oil. Depending on the nature of the... | 12/06/2005 |
| 6953501 | Wood treatment composition and method of use A wood treatment composition for the preservation of wood comprises a mixture of creosote and a polymer which is miscible with the creosote at about 200° F. and does not substantially phase-separate when the wood treatment composition is under ambient conditions. T... | 10/11/2005 |
| 6817152 | Fiber mats for materials of construction having improved tear strength and process for making same 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 ty... | 11/16/2004 |
| 6770127 | Multigrade asphalt power additive An additive composition than can be incorporated into asphalt materials to impart thereto multigrade characteristics. The additive is prepared by reacting together at least one saponifiable organic acid, at least one resin acid, at least one unsaturated organic comp... | 08/03/2004 |
| 6544911 | Fiber mats for materials of construction having improved tear strength and process for making same 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 form... | 04/08/2003 |
| 6478951 | Compatibilizer for crumb rubber modified asphalt A compatibilizer and process for use in making crumb rubber modified asphalt. The compatibilizer causes the crumb rubber to completely interact with the asphalt, thereby improving the rheological properties of the asphalt and reducing the tendency of pave... | 11/12/2002 |
| 6461421 | Hydrocarbonaceous composition containing odor suppressant This invention relates to a composition, comprising: (A) an odor-emitting hydrocarbonaceous material; and (B) an odor-suppressing amount of an aldehyde or a ketone, and a carboxylic acid ester.... | 10/08/2002 |
| 6408683 | Laboratory asphalt stability test and apparatus An asphalt stability testing vessel includes a container, an external heater, an internal heater, an agitator assembly, a temperature controller, and at least one sampling tube. The external heater is disposed on the outside surface area of the container.... | 06/25/2002 |
| 6384112 | Emulsified bituminous binder A bitumen emulsion comprising bituminous binder, emulsifier, and water. The bituminous binder comprises bitumen and an oxidised wax, and optionally one or more polymers. The incorporation of the oxidised wax into the bituminous binder provides modified bi... | 05/07/2002 |
| 6077888 | High viscosity cationic slow-set and medium-set emulsions This invention relates to improved bituminous emulsions, specifically to cationic medium-set and slow-set mixing grade emulsions. More particularly, it relates to emulsifying compositions which can be used to produce bituminous emulsions exhibiting high v... | 06/20/2000 |
| 6074469 | Asphalt composition and method A paving asphalt composition for improving the durability and longevity of asphalt road surfaces is disclosed. The paving asphalt composition includes asphalt base stock, heavy residuum of re-refined motor oil, and a chemical modifier. The heavy residuum ... | 06/13/2000 |
| 6045608 | Apparatus and process for manufacturing asphalt An improved process for making asphalt involves incorporating tar sands into a hot asphalt mix process and modifying the process. The improved process involves using a heated asphalt counter-flow drum mixer to admix asphaltic cement, coarse aggregate, and... | 04/04/2000 |
| 5922124 | Additive for, method of adding thereof and resulting cured cement-type concreations for improved heat and freeze-thaw durability An additive for, a method of adding thereof to uncured mixes for and resulting cured cement-type concreations such as cured embodiments of concrete, marcadam, and roof-top shingles each exhibiting improved heat and freeze-thaw durability resulting from re... | 07/13/1999 |
| 5888289 | Bitumen compositions and a process for their preparation The present invention provides a bitumen composition comprising a bitumen component, a thermoplastic rubber in an amount of less than 8 % wt, and an ethylene-vinyl acetate copolymer in an amount of less than 5 % wt, both based on total bitumen composition... | 03/30/1999 |
| 5854335 | Bituminous composition with diene/monovinyl aromatic block copolymer A bituminous composition which comprises a bituminous component and a block copolymer of a conjugated diene and a monovinylaromatic hydrocarbon, wherein the block copolymer has a vinyl content of at least 25% by weight based on the total diene content and... | 12/29/1998 |
| 5846601 | Use of selected polyvinyl acetate dispersions for the surface stabilization of sand and/or soil A method for the surface stabilization of sand and/or soil is provided. The method is comprised of applying an aqueous polymer dispersion to the surface layer of soil. The aqueous polymer dispersion is comprised of triesters of glycerol with lower aliphat... | 12/08/1998 |
| 5840109 | Mixtures of bitumen and olefin polymers suitable for modifying bitumens Mixtures containing bitumen and at least one polymer selected from (A) an essentially atactic propylene homopolymer, (B) an amorphous propylene copolymer with a C4 -C10 -olefin, and (C) an amorphous propylene copolymer with et... | 11/24/1998 |
| 5827360 | Method and equipment for producing foam bitumen The invention relates to a method and equipment for producing foam bitumen. Water is mixed to hot bitumen under a pressure which is lower than the prevailing absolute pressure, and after this the pressure is allowed to rise and the flow rate to drop. The ... | 10/27/1998 |