Abstract: Methods of manufacturing a conveyor belt (126) include applying a rubber composition (114) to a first side of fabric reinforcement (112) and scattering productive thermoplastic elastomer pellets (106) onto a second side of the fabric reinforcement to produce an uncured belt structure (120). The uncured belt structure (120) is continuous fed into a double belt press (116) to press the productive thermoplastic elastomer pellets (106) together with the fabric reinforcement (112) to produce an uncured belt (128). Uncured belt (128) is then heated in the double belt press (116) to a temperature of at least 300° F. and maintained in the double belt press (116) under a pressure of at least 12 psi and a temperature of at least 300° C. for a residence time of at least 20 minutes to produce a cured conveyor belt (130), which is continuously withdrawn from the double belt press (116).

Abstract: Methods of manufacturing a conveyor belt (126) include applying a rubber composition (114) to a first side of fabric reinforcement (112) and scattering productive thermoplastic elastomer pellets (106) onto a second side of the fabric reinforcement to produce an uncured belt structure (120). The uncured belt structure (120) is continuous fed into a double belt press (116) to press the productive thermoplastic elastomer pellets (106) together with the fabric reinforcement (112) to produce an uncured belt (128). Uncured belt (128) is then heated in the double belt press (116) to a temperature of at least 300° F. and maintained in the double belt press (116) under a pressure of at least 12 psi and a temperature of at least 300° C. for a residence time of at least 20 minutes to produce a cured conveyor belt (130), which is continuously withdrawn from the double belt press (116).

Abstract: This invention reveals a conveyor belt which is comprised of a carry cover layer, a tie gum layer which is situated immediately below the carry cover layer, a reinforcement layer which includes steel cords which are embedded in polychloroprene and which is situated immediately below the tie gum layer, and a rubber layer which is situated immediately below the reinforcement layer, wherein the carry cover layer is comprised of a millable urethane rubber. The tie gum layer will typically be an alloy of polyvinylchloride and nitrile rubber to attain good adhesion between the carry cover layer and the reinforcement layer. The subject invention also reveals a conveyor belt which is comprised of a carry cover layer, a reinforcement layer which includes a resorcinol-formaldehyde-latex coated fabric reinforcement, and a rubber layer which is situated immediately below the reinforcement layer, wherein the carry cover layer is comprised of a millable urethane rubber.

Abstract: The present invention relates to a conveyor belt which is comprised of a carry cover layer, a reinforcement layer which is situated below the carry cover layer, and a pulley cover layer which is situated below the reinforcement layer, wherein the carry cover layer is comprised of neodymium polybutadiene rubber.

Abstract: The present invention is based upon the discovery that neodymium polybutadiene rubber can be built onto heavy duty conveyor belts as a carry cover layer to greatly improve the wear resistance of the belt. Such heavy duty conveyor belts are of particular value for utilization in the mining of iron ore, copper ore, coal, and other abrasive materials. These belts accordingly offer a longer service life, reduce mine down-time, reduce costs, and improve overall mine productivity without having an adverse effect on worker health or safety, and without detrimentally impacting the environment. The present invention more specifically discloses a conveyor belt which is comprised of a carry cover layer, a reinforcement layer which is situated below the carry cover layer, and a pulley cover layer which is situated below the reinforcement layer, wherein the carry cover layer is comprised of neodymium polybutadiene rubber.

Abstract: This invention reveals a conveyor belt which is comprised of a carry cover layer, a tie gum layer which is situated immediately below the carry cover layer, a reinforcement layer which includes steel cords which are embedded in polychloroprene and which is situated immediately below the tie gum layer, and a rubber layer which is situated immediately below the reinforcement layer, wherein the carry cover layer is comprised of a millable urethane rubber. The tie gum layer will typically be an alloy of polyvinylchloride and nitrile rubber to attain good adhesion between the carry cover layer and the reinforcement layer. The subject invention also reveals a conveyor belt which is comprised of a carry cover layer, a reinforcement layer which includes a resorcinol-formaldehyde-latex coated fabric reinforcement, and a rubber layer which is situated immediately below the reinforcement layer, wherein the carry cover layer is comprised of a millable urethane rubber.

Abstract: A method for producing a polymer blend that includes: combining a first polymer, a second polymer and an organoclay to form a mixture, wherein the first polymer is not compatible with the second polymer, and heating the polymer and organoclay mixture to form a compatilized polymer blend. The preferred organoclay is montmorillonite clay functionalized by an intercalation agent. The intercalation agent is a reaction product of a polyamine and an alkyl halide in a polar solvent.

Abstract: A composition which includes polymethylmethacrylate and an organoclay functionalized with intercalation agent, wherein said intercalation agent is a reaction product of a polyamine and an alkyl halide in a polar solvent, preferably a dimethyl, ditallow ammonium functionalized monmorillonite clay as shown in (FIG. 3).

Abstract: The invention is directed to a flame retardant additive comprising carbon based nanotudes having flame retardant properties. The flame retardant additive of the invention includes up to about 25% by weight of the carbon-based nanotube. An embodiment of the invention is directed to a polymer including the flame retardant additive of the invention which comprises an effective amount of carbon based nanotubes. The invention also relates to a method of improving the flame retardant properties of a material, the method including adding to the material an effective amount of the flame retardant additive of the invention.

Abstract: Diphosphate such as resorcinol diphosphate or bis-phenol diphosphate act as an agglomerating agent or binder for quaternary amine treated organoclays. The blends so formed may be used as an additive in thermoplastics to form thermoplastic nanocomposites.

Abstract: A composite material and a method of making a composite material that includes: a polyolefin; polyvinyl chloride and a compatibilizer, preferably a nanoclay. The polyolefins is preferably polypropylene or polyethylene. In a preferred embodiment, the composite material includes a polypropylene, a polyethylene, polyvinyl chloride and a nanoclay. The nanoclay includes a quaternary ammonium salt based organic group and exfoliates when heated and is most preferably bentonite, smectite, hectorite, sepiolite or montmorillonite.

Abstract: A composition which includes polymethylmethacrylate and an organoclay functionalized with intercalation agent, wherein said intercalation agent is a reaction product of a polyamine and an alkyl halide in a polar solvent, preferably a dimethyl, ditallow ammonium functionalized monmorillonite clay as shown in (FIG. 3).