Tar Or Pitch Patents (Class 524/66)
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Patent number: 12122898Abstract: Provided are: a polyolefin resin composition that is unlikely to be affected by an NOx gas; and a molded article using the same. The polyolefin resin composition includes, with respect to 100 parts by mass of a polyolefin resin (A): 0.001 to 5 parts by mass of a hindered amine compound (B) which has a nitrogen content of less than 4.0% by mass and a molecular weight of 500 or less; and 0.001 to 5 parts by mass of a phenolic antioxidant (C). The hindered amine compound (B) which has a nitrogen content of less than 4.Type: GrantFiled: October 4, 2017Date of Patent: October 22, 2024Assignee: ADEKA CORPORATIONInventors: Takashi Ayabe, Yuji Mitsuhashi, Akitomo Sato
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Patent number: 11414543Abstract: The present invention relates to a thermoplastic polyurethane obtainable or obtained by converting a polyisocyanate composition, a one chain extender, and a polyol composition, wherein the polyol composition comprises a polyol (P1) which has a molecular weight Mw in the range from 500 to 2000 g/mol and has at least one aromatic polyester block (B1), wherein the hard segment content in the thermoplastic polyurethane is <75%. The present invention further relates to a process for producing a shaped body comprising such a thermoplastic polyurethane, and to shaped bodies obtainable or obtained by a process of the invention.Type: GrantFiled: December 22, 2017Date of Patent: August 16, 2022Assignee: BASF SEInventors: Zeljko Tomovic, Sebastian Richter, Frank Schaefer
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Patent number: 11384240Abstract: The present invention relates to a thermoplastic polyurethane obtainable or obtained by converting a polyisocyanate composition, a one chain extender, and a polyol composition, wherein the polyol composition comprises a polyol (P1) which has a molecular weight Mw in the range from 500 to 2000 g/mol and has at least one aromatic polyester block (B1), wherein the hard segment content in the thermoplastic polyurethane is <75%. The present invention further relates to a process for producing a shaped body comprising such a thermoplastic polyurethane, and to shaped bodies obtainable or obtained by a process of the invention.Type: GrantFiled: December 22, 2017Date of Patent: July 12, 2022Assignee: BASF SEInventors: Zeljko Tomovic, Sebastian Richter, Frank Schaefer
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Patent number: 10676542Abstract: A modified diene elastomer having a good flow resistance, and imparting to a rubber composition containing the same a good compromise of hysteresis and abrasion properties and a satisfactory processing with a view to a tire application is provided. This modified elastomer comprises: a) at least 70% by weight of a linear diene elastomer predominantly functionalized in the middle of the chain by an alkoxysilane group, optionally partly or completely hydrolyzed to silanol, the alkoxysilane group optionally bearing another function capable of interacting with a reinforcing filler, the silicon atom of the alkoxysilane group lying in the main chain of the diene elastomer; b) more than 0 and up to 30% by weight of a star-branched diene elastomer, the Mooney viscosity of said modified diene elastomer varying from 50 to 80 and the glass transition temperature (Tg) thereof varying from ?100° C. to ?80° C.Type: GrantFiled: October 7, 2016Date of Patent: June 9, 2020Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELINInventors: Charlotte Dire, Florent Vaultier, Gaël Courbes, Benoit De-Gaudemaris
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Patent number: 10294390Abstract: To provide a coating agent capable of forming a coating layer or film excellent in moisture permeability, flexibility and tensile strength. A coating agent comprising an isocyanate group-containing prepolymer obtainable by reacting a polyol mixture (A) and a polyisocyanate compound (B), wherein the polyol mixture (A) is a mixture of at least two polyoxyalkylene polyols which are different in the number of hydroxy groups or the hydroxy value, and said mixture has an average number of hydroxy groups being from 2.2 to 2.6, a molecular weight per hydroxy group being from 1,500 to 10,000 and an oxyethylene group content being at least 60 mass %.Type: GrantFiled: November 3, 2014Date of Patent: May 21, 2019Assignee: AGC Inc.Inventors: Makito Nakamura, Kaoru Oguro, Tomeyoshi Ohori
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Patent number: 9884965Abstract: An asphalt additive comprising a primary rheology modifying component and a secondary rheology modifying component, and asphalt compositions and products having such additive incorporated therein. The primary rheology modifying component is generally a polymer, and the secondary rheology modifying component may comprise a petroleum micro-wax.Type: GrantFiled: June 15, 2014Date of Patent: February 6, 2018Assignee: LEHIGH TEHNOLOGIES, INC.Inventors: Premnathan Naidoo, Vernon Patrick Keating
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Patent number: 9862861Abstract: A waterproofing composition may include coal tar, an acrylonitrile butadiene copolymer, and ground roofing shingles. A waterproofing composition may further include a solvent or water. A water-based waterproofing composition may include a clay (e.g. a ball clay). A method of preparing a waterproofing composition may include mixing a coal tar, an acrylonitrile-butadiene copolymer, and ground roofing shingles to form a mixture; and heating the mixture to a temperature of at least about 160° C. to form a waterproofing composition.Type: GrantFiled: November 11, 2015Date of Patent: January 9, 2018Assignee: Colymer Industries, LLCInventors: Paul L. Boddy, Kenneth Brzozowski, Donald Leroy McDowell
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Patent number: 9663663Abstract: A polyurethane or polyurea coating composition for use in protecting a leading edge substrate on an airfoil, such as aircraft wings, rotor blades and propeller blades, against liquid or solid particle erosion, the composition made from a polyisocyanate and curing agents, such as polyaspartic esters, aldimines and ketimines, polyamines and polyols or mixtures thereof with optional flatting agent for matte coatings.Type: GrantFiled: September 13, 2013Date of Patent: May 30, 2017Assignee: Hontek CorporationInventor: Shek C. Hong
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Patent number: 9637607Abstract: A method of making a foam from a polymerizable resin includes the following steps. A thermally-activated initiator having a temperature below the initiation temperature is combined with an elevated-temperature solution having the polymerizable resin and carbon dioxide at a temperature above a promoted temperature to create a resulting mixture having a temperature above the promoted temperature. The resulting mixture is expanded by decreasing the pressure of the mixture to create a froth having a plurality of cells formed by carbon dioxide that expanded out of solution. The polymerizable resin within the froth is cured to create a foam.Type: GrantFiled: November 14, 2013Date of Patent: May 2, 2017Assignee: Sealed Air Corporation (US)Inventors: William J. Mahon, Henry J. Ruddy
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Publication number: 20150064459Abstract: An asphalt damping sheet, which comprises the following components in indicated amounts based on the total mass of the asphalt damping sheet: a paint slag-containing waste limestone powder 20-50 parts; soft pitch 1-5 parts; hard pitch 11-15 parts; a non-metallic mineral 29-59 parts; PET short fiber 0.1-1.5 parts; and said non-metallic mineral is selected from the group consisting of quartz sand, pottery clay and mica powder. The technical process in the invention uses the paint slag-containing waste limestone powder generated in dry separation process of overspray adopted by vehicle manufacturer paint shops as filler in the asphalt damping sheets, such asphalt damping sheets can be used in the field of machine manufacturing such as automobiles and ships, and also can be used in the field of building waterproof materials, and the goal of resource recycling is achieved.Type: ApplicationFiled: June 18, 2014Publication date: March 5, 2015Inventor: XIAOLEI WANG
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Publication number: 20150018460Abstract: The present invention relates to thermoplastic products. In particular, the present invention relates to systems and methods for providing a thermoplastic product that includes one or more recycled materials. In some non-limiting implementations, the recycled materials are selected from eggshells, slag, solid output from an incinerator, and/or asphalt shingles. In some cases, the recycled materials comprise between about 0.1% and about 95%, by weight, of the thermoplastic product. In some cases, the recycled materials have a particle size between about one inch and about 300 mesh. Other implementations are also described.Type: ApplicationFiled: March 14, 2014Publication date: January 15, 2015Inventors: Michael P. Guymon, Trent N. Baker
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Publication number: 20150011686Abstract: A system and method for producing solid pellets from a slurry HDC pitch is disclosed which utilizes a polymer additive that is mixed with the pitch to increase the softening point of the solid pellets.Type: ApplicationFiled: June 19, 2014Publication date: January 8, 2015Applicant: ExxonMobil Research and Engineering CompanyInventors: William Ernest Lewis, Randolph John Smiley, Patrick Loring Hanks
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Patent number: 8513337Abstract: A novel hot melt adhesive that includes a blend of hot melt polyurethane and petroleum liquid.Type: GrantFiled: May 22, 2009Date of Patent: August 20, 2013Assignee: The Garland Company, Inc.Inventor: Jason Smith
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Patent number: 8258212Abstract: A method for producing a solid intermediate compound for incorporating into liquid bitumen obtained from petroleum or into mineral oils in order to produce liquid/polymer bitumen. According to the method, a polymer for producing the liquid/polymer bitumen is hot-mixed with solid bitumen, the mixture is then cooled, and the solid intermediate compound thus obtained is split. The intermediate compound obtained, the liquid/polymer bitumen formed from the intermediate compound, and a bitumen-coated material containing the intermediate compound or liquid/polymer bitumen are also disclosed.Type: GrantFiled: September 26, 2005Date of Patent: September 4, 2012Assignee: Fenixfalt, Societe par Actions SimplifieeInventor: Emile Lopez
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Process for cross-linking bitumen/polymer compositions having reduced emissions of hydrogen sulphide
Patent number: 8202922Abstract: 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: GrantFiled: April 6, 2009Date of Patent: June 19, 2012Assignee: Total Raffinage MarketingInventors: Romuald Botel, Sylvia Dreessen, Pierre Chaverot, Charlotte Godivier -
Publication number: 20120052196Abstract: A monolithic refractory castable material comprises from about 25 to about 80 weight percent of graphite, from about 1 to about 15 weight percent of a water dispersible, curable phenolic novolac resin, and from about 70 to about 15 weight percent of one or more refractory aggregates, based on the weight of the monolithic refractory castable material. The monolithic refractory castable material is water dispersible and may be delivered to a structure surface by casting, pumping, shotcreting or gunning processes. In one embodiment, the monolithic refractory castable material may be employed to install or replace a blast furnace lining.Type: ApplicationFiled: August 23, 2011Publication date: March 1, 2012Inventors: Yuechu MA, Douglas K. Doza, Timothy M. Green, Dana G. Goski
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Publication number: 20120031541Abstract: A cold applied adhesive that includes a blend of polyurethane pre-polymer, petroleum liquid and additive. The weight percent of petroleum liquid in the blend is less than 50 weight percent. The weight percent of polyurethane pre-polymer in the blend is less than 50 weight percent.Type: ApplicationFiled: August 5, 2010Publication date: February 9, 2012Inventor: JASON SMITH
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Patent number: 8017674Abstract: The invention provides a heat-conductive adhesive with high heat spread properties and excellent handleability. A pitch-based carbon fiber filler with high thermal conductivity and a smooth surface is combined with an adhesive resin to produce a heat-conductive adhesive with controlled viscosity and excellent handleability.Type: GrantFiled: July 27, 2007Date of Patent: September 13, 2011Assignee: Teijin LimitedInventors: Hiroki Sano, Hiroshi Hara, Tatsuichiro Kon
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Publication number: 20110165377Abstract: An asphalt base pressure-sensitive adhesive includes asphalt, an elastomer, residual pitch, as well as isoflour and optional oil and other inert fillers. The amount of elastomer is reduced by incorporating the residual pitch product which acts as an extender of the elastomer. Further, the isoflour further acts as an extender, and is compatible with the residual pitch. In a preferred embodiment, the pitch product is pine pitch.Type: ApplicationFiled: January 4, 2010Publication date: July 7, 2011Inventor: Jesse Alvin Binkley
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Publication number: 20090326104Abstract: The invention generally relates to surface coating composition, method and apparatus for coating a surface. The surface coating composition is comprising a recycled rubber product, one or more binding agent and optionally one or more additional agent.Type: ApplicationFiled: September 1, 2006Publication date: December 31, 2009Inventors: Mathieu Malboeuf, Dorian Braun
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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: 20080227893Abstract: A hollow particles-containing liquid composition which comprises: (A) crosslinked hollow particles having particle diameters of 0.4 ?m or more and containing 40 mass % or more of a toluene insoluble, in an amount of 5 to 70 mass %, (B) a reactive diluent (B1) and/or an organic solvent (B2) in an amount of 95 to 30 mass % [the total mass of the crosslinked hollow particles (A) and the reactive diluent (B1) and/or the organic solvent (B2) is 100 mass %], and (C) a dispersing agent in an amount of 0 to 30 parts by mass relative to 100 parts by mass of the total of the crosslinked hollow particles (A) and the reactive diluent (B1) and/or the organic solvent (B2). There are provided a hollow particles-containing liquid composition which is low in foreign matter content and can give a high haze, a process for production thereof, and an optical article.Type: ApplicationFiled: January 25, 2005Publication date: September 18, 2008Applicant: JSR CorporationInventors: Kouji Tamori, Yasuhisa Watanabe, Akira Nishikawa
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Publication number: 20080200594Abstract: A method for producing a solid intermediate compound for incorporating into liquid bitumen obtained from petroleum or into mineral oils in order to produce liquid/polymer bitumen. According to the method, a polymer for producing the liquid/polymer bitumen is hot-mixed with solid bitumen, the mixture is then cooled, and the solid intermediate compound thus obtained is split. The intermediate compound obtained, the liquid/polymer bitumen formed from the intermediate compound, and a bitumen-coated material containing the intermediate compound or liquid/polymer bitumen are also disclosed.Type: ApplicationFiled: September 26, 2005Publication date: August 21, 2008Inventor: Emile Lopez
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Publication number: 20080182925Abstract: 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: ApplicationFiled: January 25, 2007Publication date: July 31, 2008Inventors: Yongxia Wang, Louis A. Moore, Gary Raykovitz
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Patent number: 7138437Abstract: A composition comprising at least a part A and a part B is disclosed. The part A comprises at least one polyol and the part B comprises at least one isocyanate. At least one part further comprises at least one of the following: a strength enhancer having a softening point of from about 120° F. to about 400° F.; a non-reactive hydrophobic enhancer; and/or an impact absorption enhancer. These enhancers provide, among optional other benefits, enhanced pull strength. Additionally, a mass can be prepared by a method of combining part A with part B and applying the mixture to a void. The compositions may also be used in the repair of surface defects or for the reinforcement of structural members such as spike holes left after spike removal from railroad ties during road bed maintenance or repair.Type: GrantFiled: March 4, 2003Date of Patent: November 21, 2006Assignee: H. B. Fuller Licensing & Financing Inc.Inventors: Albert A. Giorgini, Charles J. Torborg
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Patent number: 6979705Abstract: Water-based coal tar emulsions are described which are prepared from a blend comprising coal tar, water, acrylonitrile-butadiene copolymer powders and clay. After the emulsion is prepared from the blend, a rubber latex may be added to the emulsion. Films obtained from the emulsions exhibit desirable elongation and tensile properties.Type: GrantFiled: March 9, 2004Date of Patent: December 27, 2005Assignee: W.P. Hickman Systems Inc.Inventors: Donald L. McDowell, Kenneth J. Brzozowski, Joseph F. Duda, Brian D. D'Anza
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Publication number: 20040186204Abstract: An aqueous tar solution having excellent stability in which tar is dissolved in a liquid and which does not cause precipitation or separation, as well as a tar-containing coating composition having highly rot- and termite-proofing effects, are provided. The aqueous tar solution is obtained by mixing 10 to 50 g of a 10-50% NaOH solution is mixed, relative to 100 g of tar, to produce a processed tar, and further mixing and dissolving 100 g of a 2-5% NaOH solution, relative to 10 to 20 g of the processed tar. The tar-containing coating composition is obtained by mixing the aqueous tar solution in an aqueous coating composition having resin as the major component and containing charcoal powder.Type: ApplicationFiled: January 8, 2004Publication date: September 23, 2004Inventors: Michiharu Yoshimatsu, Yuzuru Suetaka
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Publication number: 20020025998Abstract: A highly thermally conductive and high strength net-shape moldable molding composition, with a thermal conductivity above 4 W/m° K and a strength of at least 15 ksi includes a polymer base matrix of, by volume, between 30 and 70 percent. A first highly thermally conductive filler of high modulus PITCH-based carbon, by volume, between 15 and 47 percent is provided in the composition that has a relatively high aspect ratio of at least 10:1. Also in the composition mixture is a second high strength filler of PAN-based carbon, by volume, between 10 and 35 percent that has a relatively high aspect ratio of 10:1 or more. Optionally, a third filler material of thermally conductive material with a relatively low aspect ratio of 5:1 or less may be included in the composition, by volume less than 10 percent, to improve the thermal conductivity and strength of the composition.Type: ApplicationFiled: July 11, 2001Publication date: February 28, 2002Inventors: Kevin A. McCullough, James D. Miller, E. Mikhail Sagal
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Patent number: 6346561Abstract: The present invention is a recipe and method for combining Gilsonite and other asphaltites with curative elastomers that are powder granular form and which are added to asphalt. Second recipe and method is disclosed to create a dry liquid concentrate comprised of cured elastomers in combination with tall oil or other fatty acids and may also include Gilsonite to be added to asphalt.Type: GrantFiled: July 27, 2000Date of Patent: February 12, 2002Assignee: Texas Encore Materials, Inc.Inventor: John D. Osborn
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Patent number: 6306209Abstract: A pigment dispersion comprising pigment, an aqueous carrier selected from water and a mixture of water and at least one organic solvent, and a pigment dispersant is described. The pigment dispersant is prepared by polymerizing (i) at least one prepolymer having a radically polymerizable group, and (ii) at least one second monomer. The prepolymer is prepared by controlled radical polymerization, e.g., atom transfer radical polymerization, of at least one radically polymerizable first monomer. The second monomer forms a polymeric backbone segment of the pigment dispersant, and the prepolymer forms polymeric segments that are pendent to the backbone. The backbone segment of the pigment dispersant is hydrophilic, while at least a portion of each pendent polymeric segment is hydrophobic.Type: GrantFiled: December 16, 1999Date of Patent: October 23, 2001Assignee: PPG Industries Ohio, inc.Inventors: Brian E. Woodworth, Gregory J. McCollum, James B. O'Dwyer, Simion Coca
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Patent number: 6300394Abstract: A modified coal tar useful in roofing applications, containing coal tar, a nitrile butadiene rubber, and in some instances an effective amount of a plasticizer is prepared by heating the coal tar to a molten temperature, adding the rubber in powder form and agitating the material in a suitable high shear mixing apparatus until adequate phase inversion occurs between the polymer and the coal tar phase. After preparation, the material is cooled in containers until use, at which time it is heated to a flowable temperature and applied using a roofing mop or squeegee. Effective plasticizers include the alkyl esters of di-functional carboxylic acids, such as di-octyl adipate and di-octyl phthalate.Type: GrantFiled: January 13, 2000Date of Patent: October 9, 2001Assignee: The Garland CompanyInventors: Fred A. Fensel, Frank Janoch, Nathan Schaus, Joseph W. Mellott
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Patent number: 6255370Abstract: A rail spike retention and tie preserving mixture and method are disclosed for use in a wood cross tie at the situs of a driven rail spike, the mixture providing a single stage dry mixture application and including ground petroleum pitch, sub-angular silica sand and a hydrocarbon resin adhesive/sealant material. The mixture and method assure better spike retention in the tie while protecting the wood tie from degradation at and around the site of spike placement thus increasing the useful life of the tie.Type: GrantFiled: April 29, 1999Date of Patent: July 3, 2001Assignee: Railroad-Solutions, LLCInventors: Walter F. Vizcaino, Michael L. Raab
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Patent number: 6235400Abstract: A vibration-isolating laminar rubber structure including highly rigid hard plates and rubber layers which are alternately laminated on each other, wherein the rubber layers are formed of a rubber composition comprising 1-50 parts by weight of at least one kind of material selected from among asphalt materials (e.g., natural asphalt), tar materials and pitch materials, per 100 parts by weight of a rubber material (natural rubber and/or diene-based synthetic rubber). The rubber composition preferably further comprises 10-150 parts by weight of carbon black and/or 1-50 parts by weight of a plasticizer having a freezing point of not higher than −30° C, per 100 parts by weight of the rubber material.Type: GrantFiled: October 27, 1999Date of Patent: May 22, 2001Assignee: Tokai Rubber Industries, Ltd.Inventors: Isao Natsubori, Kenji Yamamoto, Kyoichi Yamamoto
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Patent number: 6166131Abstract: Disclosed is a process for producing a highly reactive modified phenolic resin, which comprises mixing a heavy oil or pitch with 0.3 to 10 mol of a phenol, 0.2 to 9 mol in terms of formaldehyde, of a formaldehyde compound and 0.01 to 3.0 mol of an acid catalyst, each amount being based on 1 mol of the heavy oil or pitch calculated from an average molecular weight; and heating the resulting mixture with stirring, thereby to polycondensate the heavy oil or pitch, phenol and formaldehyde compound. According to this invention, there can be provided a process for producing simply and stably a highly reactive modified phenolic resin having low melt viscosity, excellent heat resistance and high reactivity with an epoxy resin, in one step.Type: GrantFiled: September 22, 1999Date of Patent: December 26, 2000Assignee: Kashima Oil Co., Ltd.Inventors: Masao Tashima, Hiromi Miyasita, Haruhiko Takeda, Tomoaki Fujii, Tatsushi Ishizuka, Makoto Hasegawa
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Patent number: 6120593Abstract: The hot repair mix according to the present invention comprises p-alkylphenol as an auxiliary fluidizing agent in an amount of 1 to 20 weight parts and a material to form carbon bond in hot working process in an amount of 5 to 40 weight parts to 100 weight parts of a refractory material. It has satisfactory properties such as spreading property, hardenability, adhesive property, property of the finished portion in hot working process, and this leads to improvement of durability of the baking material. Moreover, there is no change over time such as solidification, sedimentation separation, etc. in summer season, and it can be easily transported and stored. Because of easy handling and good workability of this material, baking operation can be accomplished within short time, and it is very useful as a hot repair mix for repairing various types of refinery furnaces, molten metal containers, etc. in hot working process.Type: GrantFiled: December 17, 1998Date of Patent: September 19, 2000Assignee: Shinagawa Refractories Co., Ltd.Inventors: Hiroshi Takenaka, Shuzo Horita, Toshihiko Akizuki, Yoshiaki Osaki
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Patent number: 6121375Abstract: The present invention, which addresses the needs of the prior art, provides irreversible, hydrophilic gels which can be incorporated into dressing compositions, dermatologically compatible compositions, wound packings, wound dressings, burn dressings, drug delivery dressings, dry films, cosmetic masks and cosmetic wrap dressings. The gels of the invention include a blend of a hydrophilic poly(aldehyde) and a polymer selected from the group consisting of a poly(amide), a poly(amine) and a poly(alcohol).Type: GrantFiled: February 11, 1999Date of Patent: September 19, 2000Assignee: Hydromer, Inc.Inventor: Michael Eknoian
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Patent number: 6066685Abstract: A method for treating plastics, which is feasible on plastics containing films mixed therein, which is capable of performing dehydrochlorination simultaneously, and which provides processed plastics capable of being easily size-reduced. The method includes mixing the plastics with an organic solvent at a temperature not lower than 150.degree. C.; allowing the plastics to dissolve and/or swell; removing the organic solvent or both the organic solvent and low-boiling point components from the treated solution thereafter; and solidifying the resulting product. The method can produce solid fuels and reducing agents for ores.Type: GrantFiled: August 12, 1998Date of Patent: May 23, 2000Assignee: Kawasaki Steel CorporationInventors: Tatsuya Nobusawa, Toshihide Suzuki, Kimihiro Nishimura, Makiko Ijiri, Masahiko Tada, Masafumi Komatsu
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Patent number: 6043302Abstract: An impact absorbing macadam comprises 10 to 75% (preferably 25 to 45%) of a particulate rubber having a particle size of up to 40 mm, 25 to 90% (preferably 45 to 65%) of an aggregate having a particle of up to 40 mm and from 5 to 9% of a polymer modified bituminous binder. Typically such a macadam has a void volume, interconnected or unconnected, of from 5 to 25%. The polymer which modifies the bituminous binder is preferably an unbranched styrene butadiene styrene block copolymer forming about 7% of the modified binder. The macadam is suitable as a base for sports pitches and athletic tracks without a rubber shock pad overlay.Type: GrantFiled: March 23, 1998Date of Patent: March 28, 2000Inventor: Peter David Spendlove
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Patent number: 6034210Abstract: Disclosed is a process for producing a highly reactive modified phenolic resin, which comprises mixing a heavy oil or pitch with 0.3 to 10 mol of a phenol, 0.2 to 9 mol in terms of formaldehyde, of a formaldehyde compound and 0.01 to 3.0 mol of an acid catalyst, each amount being based on 1 mol of the heavy oil or pitch calculated from an average molecular weight; and heating the resulting mixture with stirring, thereby to polycondensate the heavy oil or pitch, phenol and formaldehyde compound. According to this invention, there can be provided a process for producing simply and stably a highly reactive modified phenolic resin having low melt viscosity, excellent heat resistance and high reactivity with an epoxy resin, in one step.Type: GrantFiled: February 17, 1998Date of Patent: March 7, 2000Assignee: Kashima Oil Co., Ltd.Inventors: Masao Tashima, Hiromi Miyasita, Haruhiko Takeda, Tomoaki Fujii, Tatsushi Ishizuka, Makoto Hasegawa
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Patent number: 5969013Abstract: Improved coal tar compositions are described which are prepared from a blend comprising:(A) based on the combined weight of coal tar and coal tar pitch, from about 80 parts to about 98 parts by weight of coal tar having an overall float test of from about 50 seconds to about 220 seconds,(B) based on the combined weight of coal tar and coal tar pitch, from about 2 parts to about 20 parts by weight of coal tar pitch having a softening point of from about 140.degree. C. to about 160.degree. C., and(C) from about 1% to about 20% by weight, based on the total weight of the composition, of an acrylonitrile-butadiene copolymer. In one embodiment up to 35 parts by weight of the coal tar (A) is replaced with a coal tar selected from coal tars having softening points of from about 52.degree. C.-60.degree. C., and from about 56.degree. C.-64.degree. C. The coal tar compositions are not emulsions, and generally will not contain any significant amount of water (e.g., less than 0.5% by weight).Type: GrantFiled: July 30, 1998Date of Patent: October 19, 1999Assignee: W.P. Hickman Systems Inc.Inventors: Kenneth J. Brzozowski, Ken Chernotowich
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Patent number: 5965626Abstract: An asphaltic isocyanurate foam useful in roofing applications. The foam is made from asphalt having a penetration range of between approximately 5-25, a softening point of between approximately 120.degree. F. and 200.degree. F., and an asphaltene content of no more than about 30%. This asphalt is liquified and mixed with a mixture of polyols such as Voranol 270, Multranol 9138, and castor oil. Other chemicals, such as a surfactant, a viscosity reducer, and a flame retardant can also be included in this mixture. The mixture is then brought to a temperature of between approximately 140.degree. F. and 220.degree. F., mixed with water and a polyisocyanate in a molar ratio of polyisocyanate:polyol of between about 2.0:1 and about 2.5:1 and reacted to form an asphaltic isocyanurate foam.Type: GrantFiled: March 10, 1997Date of Patent: October 12, 1999Assignee: Fontana Paper Mills, Inc.Inventors: Casey G. Tzeng, George F. Thagard, III
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Patent number: 5925695Abstract: Disclosed are a curable composition, a cured article therefrom having improved properties, an asphalt emulsion, an asphalt mixture for paving, and a cured article prepared therefrom having an excellent water permeability.Type: GrantFiled: November 12, 1997Date of Patent: July 20, 1999Assignee: Daicel Chemical Indstries Ltd.Inventors: Yoshihiro Ohtsuka, Yasuhiro Oshino
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Patent number: 5922124Abstract: 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 reduced efflorescence and stability against sun ultraviolet light exposure.Type: GrantFiled: September 12, 1997Date of Patent: July 13, 1999Inventor: William W. Supplee
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Patent number: 5868894Abstract: A method for producing cast-in-place flexible joined-together constructional structures and buildings comprises applying to precleaned mating surfaces of the constructional structures and buildings involved a thiokol-containing compound incorporating the following components, wt %.______________________________________ liquid thiokol 80-120 inorganic pigment 20-45 vulcanizer of aerobic rubber hardening 6.5-10.0 adhesive additive 5.5-7.5 rubber hardener 0.05-0.15 cross-linking agent 2.6-4.1 modifier 0.3-0.4 coal tar 14.5-31.2, ______________________________________followed by filling a space confined between the mating surfaces with a mortar based on a cement having a maximum expansion ratio of 0.3%. Then the joined-together constructional structures or buildings are held for a period of time long enough for vulcanization of the thiokol-containing compound and cement hardening so as to impart elastomonolithic properties to the joined-together constructional structures or buildings involved.Type: GrantFiled: June 6, 1997Date of Patent: February 9, 1999Inventor: David Yakovlevich Frenkel
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Patent number: 5854322Abstract: A modified coal tar pitch useful in roofing applications, containing coal tar pitch, and a nitrile butadiene rubber, is blended by heating the coal tar pitch to a molten temperature, adding the rubber in powder form and agitating the material in a suitable high shear mixing apparatus until adequate phase inversion occurs between the polymer and the coal tar phase. After preparation, the material is cooled in containers until use, at which time it is heated to a flowable temperature and applied using a roofing mop or squeegee.Type: GrantFiled: August 20, 1997Date of Patent: December 29, 1998Assignee: The Garland CompanyInventor: Joseph W. Mellott
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Patent number: 5743950Abstract: The present invention provides a process for preparing a dense-graded asphalt composition which comprises adding a hard binder component to a mixture of a soft binder component and aggregate at a temperature of less than 140.degree. C.Type: GrantFiled: November 25, 1996Date of Patent: April 28, 1998Assignee: Shell Oil CompanyInventors: Henricus Engelbertus Johannes Hendriks, Dirk Adriaan Stoker
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Patent number: 5731249Abstract: The object of the present invention is to provide a spray-on (gunning) refractory composition having high anti-stripping property, adhesive strength and corrosion resistant property suitable even for high temperature operation in steelmaking furnace. To refractory materials, resol type phenolic resin powder, being in semi-melting state at 80.degree. C. to 500.degree. C. and having weight average molecular weight of 1,000 to 15,000 and residual monomer of not more than 1,000 ppm, or phenol-formaldehyde resin powder, being in heat melting, self-hardening state at 100.degree. C. to 500.degree. C., having weight average molecular weight of 1,000 to 15,000 and residual monomer of not more than 1,000 ppm, and containing reactive methylol group by 6 to 9 weight %, said phenol-formaldehyde resin powder being added by 2 to 10 weight %, and pitch with high softening point of 100.degree. C. to 500.degree. C. being added by 2 to 10 weight %.Type: GrantFiled: November 4, 1996Date of Patent: March 24, 1998Assignee: Shinagawa Refractories Co., Ltd.Inventors: Hiroyuki Sugimoto, Tasuku Matsuda, Koichi Tanaka, Hiroshi Takenaka
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Patent number: 5688860Abstract: Polyurethane/urea elastomers having an isocyanate equivalent index below 100, preferably from about 15 to about 80; containing an effective amount of polyisocyanate component, and an effective amount of an isocyanate reactive component comprising at least one polyamine and at least one polyol, wherein said elastomer contains from about 1 to about 199 equivalent percent amine per isocyanate equivalent.Type: GrantFiled: December 14, 1995Date of Patent: November 18, 1997Assignee: Minnesota Mining and Manufacturing CompanyInventor: Thomas Stone Croft
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Patent number: 5631313Abstract: A new stable liquid suspension of a non soluble particulate material, and a method of preparation of same are provided. Such compositions comprise at least one oil, one oil soluble resin and a non oil soluble particulate material mixed together In the appropriate quantities and conditions.Type: GrantFiled: November 14, 1991Date of Patent: May 20, 1997Assignee: Phillips Petroleum CompanyInventors: Marshall D. Bishop, John E. Hostettler
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Patent number: RE37655Abstract: 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 reduced efflorescence and stability against sun ultraviolet light exposure.Type: GrantFiled: August 19, 2000Date of Patent: April 16, 2002Inventor: William W. Supplee