Abstract: A composition comprising: (1) from 50 to 99 wt % of a modified, random copolyetherester containing: (i) a modified, random polybutylene terephthalate copolymer block that is derived from a polyethylene terephthalate component selected from the group consisting of polyethylene terephthalate and polyethylene terephthalate copolymers and combinations thereof; and that contains at least one residue derived from the polyethylene terephthalate component; and (ii) a polyalkylene oxide copolymer block that is derived from a polyethylene terephthalate component and polyalkylene oxide glycol, and contains polyalkylene oxide and at least one residue derived from the polyethylene terephthalate component; and (2) from 1 to 50 wt % of a polyester; wherein the copolyetherester, the polyester, and optionally any additives, are present in a total amount of 100 wt %.

Abstract: The present invention provides, e.g., methods to recycle and/or reduce plastic, non-plastic, or a combination thereof, from a waste stream. The methods of the present invention include contacting the plastic waste with infrared (IR) energy at one or more frequencies and at one or more intensities, over a period of time effective to heat plastic present in the plastic waste.

Abstract: A process for making a carbonous residue from scrap tires is disclosed. Tires are digested in an oil product. Steel and glass fibers are separated. A product enhancing additive comprising halogen based organic or inorganic compounds is added. The resulting carbonaceous material is then cured to create the final product. The produced carbonous residue is well suited for capture of mercury. The present invention has the benefits of providing a use for scrap tires that would otherwise require disposal in a landfill, and also produces a product useful for capturing a harmful element, thereby providing multiple environmental and economic benefits.

Abstract: The invention relates to a composition comprising a modified, random copolyetherester containing a modified, random polybutylene terephthalate copolymer block that is derived from a polyethylene terephthalate component selected from the group consisting of polyethylene terephthalate and polyethylene terephthalate copolymers and combinations thereof; and contains at least one residue derived from the polyethylene terephthalate component; and a polyalkylene oxide copolymer block that is derived from a polyethylene terephthalate component and polyalkylene oxide glycol, and contains polyalkylene oxide and at least one residue derived from the polyethylene terephthalate component.

Abstract: Modular plastic structural composites having a web section disposed along a horizontal axis and at least one flange section disposed along a horizontal axis parallel thereto and integrally molded to engage the top or bottom surface of the web section, wherein said composite is formed from a mixture of (A) high density polyolefin and (B) a thermoplastic-coated fiber material, polystyrene, or a combination thereof. Composites molded in the form of I-Beams and bridges constructed therefrom are also disclosed.

Abstract: Vulcanized rubber is devulcanized by contacting the vulcanized rubber with a terpentine liquid in a reaction mixture in the absence of an alkali metal.

Abstract: Modified scrap rubber particles, a method for forming the modified rubber particles and compositions including the modified rubber particles. The rubber particles are impregnated with at least one polymerizable monomer and polymerized to impregnate the rubber particles with a polymer. The impregnated polymer provides the modified rubber particles with improved properties which increase the potential uses for recycled scrap rubber. The modified rubber particles are useful in surface coatings, such as latex paint or powder coatings and can be used as a soil substitute.

Abstract: A process and resulting product is provided in which vulcanized rubber crumb has selected chemical bonds broken and sulphur removal by biotreatment with hydrophobic bacteria, such as mycolic acid containing actinomycete bacteria of ‘mycolata’, without significant degradation of the hydrocarbon polymer. The products obtained from the use of these bacteria may be processed alone or in blends with virgin rubber and revulcanized to yield products of much higher quality than conventional reclaimed rubber materials.

Abstract: A novel process produces a novel hydrogenated nitrile rubber (B) which features a very narrow molecular weight distribution and a correspondingly low value for the polydispersity index. The preparation process encompasses the treatment of a hydrogenated nitrile rubber (A) with ultrasound, whereupon the resultant hydrogenated nitrile rubber (B) has a lower weight-average molecular weight (Mw) than the hydrogenated nitrile rubber (A). The resultant hydrogenated nitrile rubber (B) has excellent suitability for the production of mouldings via processing by extrusion processes or by injection-moulding processes.

Abstract: A method for separating a polymer from carbon black in devulcanized rubber, the method comprising steps of inserting devulcanized rubber into a bath of a solvent, dissolving a polymer out of the devulcanized rubber and into a solution of the solvent and the polymer, removing the solution from the bath without disturbing an un-dissolved residue comprising carbon black, and recovering the un-dissolved residue.

Abstract: The present invention provides methods of making composite materials comprising combining particles of crosslinked rubber with one or more aqueous polymer dispersion of a suspension polymer to form a mixture in aqueous dispersion, and, optionally, subjecting the aqueous dispersion mixture to solid state shear pulverization to form materials that can be processed as thermoplastics at crosslinked rubber concentrations of from 10 to as high as 95 wt. %, based on the total solids of the material. The method may further comprise kneading and/or compression molding the pulverized product to form useful articles, such as roofing membranes and shoe soles.

Abstract: Thermoplastic polymers, rubbery polymeric components and reinforcing fillers are mixed and heated to a range of 380° F. to 440° F. The resulting mixture is then fed into a Banbury mixer, with the resulting mixture fed into a diverter feeding two molds. The velocity of the piston of each mold being filled is controlled to thereby control the density of the molded product along its length. As each mold is filled, it is deposited in a cool water bath (50° F.-60° F.) while the next mold is being filled. The molds are sequentially transferred to an air cooling rack to complete the process. A texture, generally comprising indentations perpendicular to the longitudinal axis on the molded object, provides a frictional surface between the railway crosstie and the ballast beneath the crosstie.

Abstract: [Problems] To produce a resin composition from a waste plastic material composed of a major portion of a thermoplastic resin and a small amount of incompatible solid foreign material. [Means for solving problems] A reclaimed resin composition which is produced by mixing a pulverized waste plastic material containing a major portion of a thermoplastic resin and a small amount of a non-thermoplastic solid foreign material with a light-shielding component and a light-shielding filler to give a mixture and melting the mixture under heating, and a sheet made from which shows a relationship between a lightness and a light transmittance satisfying the following condition: (A×B)?4000 wherein A means a lightness of a sheet of 3 mm thick having been made of the reclaimed resin composition, and B means a total light transmittance (%) of a sheet of 50 ?m thick having been made of the resin composition.

Abstract: The present invention provides a method for decomposing a plastic so as to recycle useful substances therefrom as raw materials for a similar plastic. In particular, the present invention provides a method for decomposing a plastic, comprising the step of treating a thermosetting resin comprising a polyester and its crosslinking moiety, with subcritical water of a temperature lower than the thermal decomposition temperature of the thermosetting resin. According to the present invention, the thermosetting resin can be decomposed into a polyhydric alcohol, a polybasic acid and a compound comprising an acid residue derived from the polyester and a residue derived from the crosslinking moiety, without causing a random decomposition of the thermosetting resin.

Abstract: The present invention relates to a method for preferentially breaking cross-links in a vulcanised rubber, thereby de-vulcanising the rubber, by the use of a supercritical fluid, such as carbon dioxide. The supercritical fluid maintained at an appropriate solubility parameter, swells the vulcanised rubber to a state of equilibrium swell. The cross links become fully extended and under strain to hold the internal pressures caused by the solvent swelling affect of the supercritical gas. When equilibrium swell has been achieved, the pressure within the processing vessel is rapidly dropped to a predetermined level causing a degassing and expansion of the supercritical fluid that has been absorbed within the vulcanised rubber. The resulting three dimensional separation of the rubber molecules will put a further rapid strain on the cross links, causing them to break, thereby giving the affect of de-vulcanisation.

Abstract: The object of the present invention resides in providing a method and instrument of polymer processing treatment, wherein a sudden pressure change due to expansion by gasification of a reactant when it is exhausted from a reacting extruder is given in a little amount to a molding machine for a treated substance, and a change in the amount of the material supplied to the molding machine and a variation in molding are little, and hence continuous and uniform molding is possible. That is, the method of the present invention resides in a method of polymer processing treatment, which includes the steps of: reacting a polymer with a reactant under mixing and stirring at a high temperature and a high pressure in the inside of a reacting extruder to produce the treated substance; introducing said treated substance and a remaining reactant into a reactant-separation tank to separate the treated substance and the reactant; and molding the separated treated substance.

Abstract: Recycled resin is produced by a method including a dismantling/recovery step of dismantling products containing resin moldings and recovering the resin moldings, a removal step of removing unwanted matter including metal components from the resin moldings, a sorting step of discriminating the materials of the resin moldings, and a crushing step of crushing the resin moldings. The method further includes, prior to the crushing step, detecting the metal components, and, after the crushing step, separating out and thus removing metal remaining in crushed material.

Abstract: 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.

Abstract: A method of making a sorbent from waste rubber and a method of sorbing oil using such sorbent. Approximately two pounds of modifier is added to 100 pounds of vulcanized rubber waste, the modifier comprising a mixture by weight of (i) a slightly water-soluble organic acid having a melting point of 70° C. or higher representing 80%, (ii) quinine group bases representing 19% and (iii) 1% of an anti sliding ingredient such as colophony, running the mixture of rubber waste and modifier in a roll mill approximately six times to crush it and placing the crushed modified rubber particles in an extruder for 2-10 minutes at 120-150° C. The sorbent can then be applied to oil to sorb six times its own weight in oil. The sorbent can be re-used two more times after extracting the oil. The sorbent is also effective at filtering oil from water.

Abstract: A system for recycling plastics, which enables a supply of recycled plastics having a stable quality required for the recycled products. A system for recycling a used plastic material as a resin material, which has (a) means for sorting used plastic materials by purpose of recycling, (b) means for crushing and melting said used plastic material sorted, (c) reviving means for regaining a desired property, and (d) means for measuring a physical property of a reclaimed plastic revived and indicating said measured physical property for quality assurance.

Abstract: The present invention relates generally to the delulcanization of rubber. More specifically, the present invention relates to a process for the hydro-devulcanization of vulcanized rubber utilizing a rubber swelling solvent, a source of reactive hyrogen and elevated temperature and, optimally, also uses a dispersed molecular-scale hydrogenation catalyst that is introduced into the vulcanized rubber in a catalytically inert form that is soluable in the rubber swelling solvent.

Abstract: The invention relates to a process for converting an elastomer from scrap to a regenerated elastomer which comprises the steps of: (a) introducing the elastomer from scrap into a vessel; (b) agitating the elastomer from scrap; (c) heating the elastomer from scrap to a temperature below a temperature where the elastomer begins to degrade; (d) introducing an oil into the vessel and admixing together the elastomer from scrap and the oil; and (e) cooling down the so formed regenerated elastomer, whereby the regenerated elastomer has properties similar to a corresponding virgin elastomer. Steps (b) and (c) are carried out simultaneously or separatelty and steps (c) and (d) are carried out simultaneously or separately. A regenerated elastomer and its use are also disclosed.

Abstract: A method of making a sorbent from waste rubber and a method of sorbing oil using such sorbent. Approximately two pounds of modifier is added to 100 pounds of vulcanized rubber waste, the modifier comprising a mixture by weight of (i) a slightly water-soluble organic acid having a melting point of 70° C. or higher representing 80%, (ii) quinine group bases representing 19% and (iii) 1% of an anti sliding ingredient such as colophony, running the mixture of rubber waste and modifier in a roll mill approximately six times to crush it and placing the crushed modified rubber particles in an extruder for 2-10 minutes at 120-150° C. The sorbent can then be applied to oil to sorb six times its own weight in oil. The sorbent can be re-used two more times after extracting the oil. The sorbent is also effective at filtering oil from water.

Abstract: The present invention is a utilization method for rubber-containing, organic industrial and municipal wastes which may be applied in the fields of petrochemical and chemical industry. Raw material is liquefied at 60-310° C. under 0.1-0.2 MP a pressure in aprotic hydrocarbon solvent in any neutral gas or CO2 atmosphere with simultaneous collection from reactor of liquid hydrocarbon fractions with the boiling temperatures reaching 200° C. and above and further rectification of fractions up to 200° C. and then drying solid residues at temperatures 270-310° C. Application of solvents and gases makes this process to be ecologically clean. The present invention makes possible a solution of the ecological problem of utilization of rubber-containing and other wastes.

Abstract: 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.

Abstract: A process for reclaiming sulfur-cured, vulcanized rubber by combining finely ground scrap vulcanized rubber within a specialized, twin-screw extruder capable of providing strong shearing and just-on-time mixing; adding a reclaiming agent to the extruder; and masticating the rubber scrap and reclaiming agent within the extruder until the rubber scrap is devulcanized. The present invention also discloses a unique composition of reclaiming agent, which preferably includes the following compounds: accelerators TBBS, ZMBT, MBT, and TMTM; activators zinc oxide and stearic acid; and zinc salts of fatty acids and sulfur. The reclaimed rubber is suitable for use in producing high-grade, rubber products without adding a binder, or for combining with fresh rubber compounds to produce high-specification rubber products.

Abstract: A method of modifying crosslinked rubber comprising subjecting the rubber to mechanical elongational and shear forces in the presence of a supercritical fluid that is normally gaseous. Controllable devulcanization of the rubber is achieved.

Abstract: Moldings of fluoro rubbers produced by crosslinking a tetrafluoroethylene/propylene copolymer or a tetrafluoroethylene/propylene/vinylidene fluoride copolymer, which have metal contents of 1.5% by mass or below in terms of metal elements and are suitable for use applications necessitating clean environment, for example, manufacturing or carrier equipment for semiconductors, manufacturing equipment, carriers, or storage containers for food, or medical supplies.

Abstract: A method of reducing vulcanized rubber is provided. The method comprises the steps of heating the rubber, wherein the rubber includes synthetic rubber, in the presence of a solvent, wherein the solvent includes water to a temperature below a critical temperature of the solvent, providing a pressure that is at least equal to a saturated vapour pressure of the solvent at the temperature and maintaining the temperature and the pressure for a time sufficient to devulcanize the rubber and produce a reaction product that is primarily a solid phase and includes rubber hydrocarbon.

Abstract: The present invention relates to an apparatus and method for reusing waste material generated during the manufacturing of golf ball cores. More specifically, the present invention relates to a method and apparatus for drying the waste material in order lower its moisture content. In addition, the present invention relates to golf balls and golf ball components that utilize waste material, and in particular swarf.

Abstract: A method of separating at least one polymer from a mixture of polymers. The method includes adjusting the temperature of the mixture, either by heating or cooling, to bring the temperature to a temperature at which decombination of the polymer mixture occurs. Mechanical energy is also imparted to the mixture, before, during or after temperature adjustment. The temperature adjustment and application of mechanical energy enable at least one polymer to be separated from the other polymers in the mixture.

Abstract: A regenerated resin composition comprising (I) a molded article pulverized material (Component A) that satisfies conditions (1) that the molded article pulverized material is a pulverized material of a molded article having an aromatic polycarbonate resin content of 30 to 98% by weight, (2) that the pulverized material has a viscosity average molecular weight of 17,000 to 30,000, and (3) that the pulverized material has a wet heat retention ratio of at least 60%, and (II) an aromatic polycarbonate resin (Component B). According to the present invention, there is provided a regenerated resin composition that comprises a pulverized material from a molded article made of an aromatic polycarbonate resin and that is excellent in the property of retaining physical properties for a long period of time and excellent in mechanical strength.

Abstract: Fiber reinforced composite plastic materials for use in injection and compression molding and extrusion processing produced from waste materials, the composite material includes an effective amount of high melting point polymer fiber material and a sufficient amount of low melting point plastic material to coat and bind the high melting point fiber material together and method of producing same.

Abstract: The present invention discloses a process for devulcanizing cured rubber into devulcanized rubber that is capable of being recompounded and recured into useful rubber products, said process comprising heating the cured rubber to a temperature which is within the range of about 150° C. to about 300° C. under a pressure of at least about 3.4×106 Pascals in the presence of a mixture of carbon dioxide and 2-butanol.

Abstract: 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.

Abstract: A devulcanization product of comminuted scrap rubber of rubber granules, in which the sulfur bridges of the rubber granule surface are broken and activated for a new vulcanization, is produced by treating the rubber granules to swell the rubber structure of the granule surface and by mixing the treated rubber granules with a devulcanization formulation, acting mechanically and chemically reductively on the rubber granules, in a heating and cooling mixer combination. The rubber granules and the devulcanization formulation are heated to a temperature of 105-150° C. and subsequently immediately cooled. A devulcanization compound is prepared by mixing the devulcanization product with vulcanization and binding agents so as to coat the rubber granules uniformly with them The devulcanization compound can also be prepared by coating the swelled rubber granules in layers by admixing vulcanization agents such as accelerators, activators, auxiliary agents, binding agents, oxygen radical donors and scavengers.

Abstract: A dry liquid concentrate composition is disclosed having at least about 40% by weight of a polypropylene copolymer, at least about 10% by weight of santoprene, at least about 11% by weight of a low density polyethylene, at least about 0.5% by weight of a tall oil, at least about 0.5% by weight of a mixture of saturated and unsaturated fatty esters having modified organic acid derivatives, at least about 0.5% by weight of silicone, and at least about 20% by weight of a dry crumb rubber.

Abstract: This invention utilizes two solvents, DMSO and d-limonene, to aid in the processing of cured rubber or hydrocarbon elastomers into crumb, without altering the physical properties of the elastomer. After the rubber has been sufficiently softened it is ground and the elastomers are washed and separated from any other components.

Abstract: A recycled plastic material is made from laser-engraved thermoplastic, metal-containing thermoplastic, thermoplastic used in an inkjet apparatus, or thermoplastic to which an ink or its composition have stuck. This recycled plastic material is manufactured by pulverizing any of these thermoplastics, cleaning the pulverized thermoplastic, removing a cleaning solution from the cleaned thermoplastic to dry it, and removing the dried thermoplastic solid matter other than the thermoplastic.

Abstract: The invention provides a modifier for devulcanization of cured elastomers, and especially vulcanized rubber, said modifier containing a first chemical substance, which is disposed towards on and the formation of an organic cation and amine, and further containing a second chemical substance as promotor of dissociation of the first chemical substance, said promotor containing a functional group constituting an acceptor of said amine.

Abstract: The invention relates to a process for converting an elastomer from scrap to a regenerated elastomer which comprises the steps of: (a) introducing the elastomer from scrap into a vessel; (b) agitating the elastomer from scrap; (c) heating the elastomer from scrap to a temperature below a temperature where the elastomer begins to degrade; (d) introducing an oil into the vessel and admixing together the elastomer from scrap and the oil; and (e) cooling down the so formed regenerated elastomer, whereby the regenerated elastomer has properties similar to a corresponding virgin elastomer. Steps (b) and (c) are carried out simultaneously or separatelty and steps (c) and (d) are carried out simultaneously or separately. A regenerated elastomer and its use are also disclosed.

Abstract: The present invention relates to elastomeric compositions and methods including compositions and methods involving the use of aromatic alcohols. The present invention further relates to elastomeric compositions that can include ground reclaimed elastomeric particles. Compositions of the present invention are usable in numerous elastomeric applications including interior and exterior vehicle parts, roofing, asphalt, and any other applications that employ an elastomer as an ingredient thereof, particularly those utilizing rubber or a similar elastomer. The present invention further is directed to asphalt compositions and their methods of manufacture and use.

Abstract: A new rubber composition for use in clothing and fashion accessories, is provided. The new rubber composition includes 30-70% by weight devulcanized, recycled rubber, and most preferably, devulcanized, recycled tire rubber.

Abstract: A method of reducing vulcanized rubber is provided. The method comprises the steps of heating the rubber, wherein the rubber includes synthetic rubber, in the presence of a solvent, wherein the solvent includes water to a temperature below a critical temperature of the solvent, providing a pressure that is at least equal to a saturated vapour pressure of the solvent at the temperature and maintaining the temperature and the pressure for a time sufficient to devulcanize the rubber and produce a reaction product that is primarily a solid phase and includes rubber hydrocarbon.

Abstract: A method of recycling a molded resin consisting mainly of a thermoplastic resin which comprising adding as a recycle aid agent a rubber-like material (material) which is compatible with the thermoplastic resin as the main component of the molded resin, is moldable after having been mixed with the resin, and has the property of improving impact strength. By this method, impact strength and flame retardancy are recovered or improved.

Abstract: The object of the present invention is to provide a method of reclaiming crosslinked rubber wherein a reduction of qualities due to generation of decomposed products hardly occurs, and a molding of reclaimed rubber. In a reclamation step of reclaiming crosslinked rubber 10 by applying shear stress thereto and/or in a subsequent step in the present invention, a degasification carrier is introduced and decomposed products in the crosslinked rubber 10 are removed together with the degasification carrier. Also the disclosed is a molding of reclaimed rubber prepared by re-crosslinking reclaimed rubber obtained by this method.

Abstract: The present invention relates to a coating composition using rubber compound, preferably scrap tire, and method of producing the same. The coating composition is obtained by extracting a liquid styrene butadiene rubber (SBR) from a rubber compound, preferably scrap tire, containing carbon black, adding an additive for hardening the liquid SBR, and selectively adding another additives selected for the different usages of the composition. According to the present invention, a novel coating composition that can be used for rust proofing, waterproofing, fiber grid coating etc. is provided. Also, a large volume of rubber compounds, preferably scrap tires, which otherwise may cause environmental pollution, can be recycled in an economic and reliable process.

Abstract: Rubber compositions such as tire innerliners contain significant amounts of ground, fine size tire curing bladder rubber as a filler. Critical properties such as air retention are not affected and spent or old curing bladder rubber which would otherwise go to a landfill is effectively recycled.

Abstract: An elastomer blend that is similar to thermoplastic elastomers is produced from powered reclaimed rubber or waste rubber. The powdered rubber is processed to compounds by subjecting it to a melt-mixing process in a mixer together with a thermoplastic material and at least one stabilizer. A mixture that consists of two phases that are usualy incompatible, namely the powdered rubber and a thermoplastic material, is processed to a blend that is characterized by the properties of the rmoplastic elastomers. To this end, at least one polypropylene copolymer or a mixture thereof with at least one polypropylene type is melted in the mixer and powered rubber, at least part of which has been pre-swelled in a radical donor, is dosed to the melt. The powered rubber is dispersed in the plastic matrix by applying high shearing strains and admixing radical-forming agents in order to couple the two phase.

Abstract: A process for manufacturing an article using a predetermined amount of crumb rubber comprising the steps of selecting an article to be manufactured, determining a maximum amount of recycled rubber which can be used in manufacturing the article selected. A particle size for recycled rubber to be used is determined and a binder for binding the recycled rubber is selected. The amount of binder required to be added is determined. Curing agents to be used in the process are selected and their weight determined. The components are mixed in a mixer and heated to a predetermined temperature. The mixture is removed and a mold is filled with the mixture. The mixture is then molded at a predetermined temperature and a predetermined pressure being at least sufficient to cure the mixture so as to form the article previously selected and then the molded product is removed from the mold.