Abstract: A method and container for reducing fuming of asphalt in a heated vessel, including placing asphalt in a heated vessel to heat the asphalt to a molten state, adding a blanket material to the asphalt, the blanket material being substantially insoluble in the molten asphalt to form a skim thereon to reduce fuming therefrom.

Abstract: A method and container for reducing fuming of asphalt in a heated vessel, including placing asphalt in a heated vessel to heat the asphalt to a molten state, adding a blanket material to the asphalt, the blanket material being substantially insoluble in the molten asphalt to form a skim thereon to reduce fuming therefrom.

Abstract: Asphalt is packaged in containers having breakage means, such as short notches, long channels, wedges or molded parts, to allow for easy breakage into smaller portions for ease of handling and feeding into kettles. Asphalt is also packaged so as to improve cold flow of the block while simultaneously reducing fumes at the kettle. The containers have various features to enhance processability and handleability, including a handhold portions and/or scooped portions.

Abstract: A method and container for reducing fuming of asphalt in a heated vessel, including placing asphalt in a heated vessel to heat the asphalt to a molten state, adding a blanket material to the asphalt, the blanket material being substantially insoluble in the molten asphalt to form a skim thereon to reduce fuming therefrom.

Abstract: A method for substantially reducing sulfur-oxide emissions from an asphalt air-blowing process involves adding an emission-reducing additive to the asphalt prior to air-blowing, or early in the air-blowing process, and filtering the flue gases produced in the process. The emission-reducing additive includes at least one metal hydroxide, metal oxide, metal carbonate, or metal bicarbonate, where the metal is sodium, potassium, calcium, magnesium, zinc, copper, or aluminum. The filter is preferably of the fiber-bed type, and removes at least a portion of the sulfur-containing compounds via condensation. The filtered stream of flue gases is subjected to an incineration process before being passed into the atmosphere.

Abstract: In a method for reducing hydrogen chloride emissions from an asphalt air-blowing process, an asphalt is subjected to an air-blowing process where air is bubbled through hot asphalt to raise the softening point of the asphalt. The fumes from the air-blowing process are bubbled through a liquid seal in a knockout tank before going to an incinerator and finally being emitted to the atmosphere. The knockout tank normally operates to condense oil in the fume stream, and the liquid seal is composed of this oil, as well as some of the water evolved in the air-blowing process. When using ferric chloride or ferrous chloride as a catalyst in the air-blowing process, the fume stream contains significant levels of hydrogen chloride.

Abstract: A container for asphalt includes a sidewall and a bottom assembled to the sidewall to form the container for holding the asphalt in the container, the bottom thereafter being melted with the asphalt without adversely affecting the asphalt properties.

Abstract: A method of using repairing cracked or otherwise leaking polymer-modified asphalt-based containers for packaging asphalt. A strip of consumable adhesive tape is adhered to cover and seal the damaged portion of the container. Molten asphalt is then added to the repaired container. The molten asphalt is added to the container at a temperature that is below the melting temperature of the tape. Upon solidification of the asphalt in the repaired container, the entire asphalt package is melted prior to use in a melting apparatus, such as a gas-fired asphalt kettle melter. At the melter temperatures, the tape, container, and packaged asphalt melts or solubilizes in the melted mass.

Abstract: A consumable container is molded from a composition comprising 40 to 90 weight % of an asphalt and 10 to 60 weight % of a polymer material, which advantageously can include a first polymer such as PP that imparts heat resistance and a second polymer such as EVA that imparts toughness and impact resistance. This molded asphalt/polymer material preferably has an unnotched Izod impact strength of at least 2 joules. The container is consumable--it can be melted along with roofing asphalt held in the container without adversely affecting the properties of the asphalt and without requiring undue mixing. The composition also can be used to reduce fumes normally emitted from a kettle of molten asphalt, e.g., as measured by a reduction of the visual opacity of the fumes by at least 25%, a reduction of the hydrocarbon emissions of the fumes by at least 20%, or a reduction of the total suspended particulates emissions of the fumes by at least 15%. The container may be used, e.g.

Abstract: A method and apparatus for packaging a low-fuming meltable asphalt composition which includes the introduction of pellets comprising one or more polymeric materials into molten asphalt flowed into a conventional container or carton.

Abstract: Asphalt is packaged in consumable containers (10) having breakage means, such as short notches or long channels (110, 111), to allow for easy breakage into smaller portions for ease of handling and feeding into kettles. The containers are advantageously made of an asphalt-polymer composition so that the entire asphalt package may be melted in a kettle, e.g., for use in a roofing or paving application. The containers may have various features to enhance processability and handleability, including a generally rectangular shape and multi-faceted or stepped sides 20 and/or walls 30 with handhold portions and/or scooped portions.

Abstract: A consumable container is molded from a composition comprising 40 to 90 weight % of an asphalt and 10 to 60 weight % of a polymer material, which advantageously can include a first polymer such as PP that imparts heat resistance and a second polymer such as EVA that imparts toughness and impact resistance. This molded asphalt/polymer material preferably has an unnotched Izod impact strength of at least 2 joules. The container is consumable--it can be melted along with roofing asphalt held in the container without adversely affecting the properties of the asphalt and without requiring undue mixing. The composition also can be used to reduce fumes normally emitted from a kettle of molten asphalt, e.g., as measured by a reduction of the visual opacity of the fumes by at least 25%, a reduction of the hydrocarbon emissions of the fumes by at least 20%, or a reduction of the total suspended particulates emissions of the fumes by at least 15%. The container may be used, e.g.

Abstract: An injection molding process and apparatus to manufacture asphalt-based products which utilizes a heated mixing chamber to continuously blend molten thermoplastic polymer and asphalt to form an injection moldable composition.

Abstract: Asphalt is packaged in consumable containers (10) having breakage means, such as short notches or long channels (110, 111), to allow for easy breakage into smaller portions for ease of handling and feeding into kettles. The containers are advantageously made of an asphalt-polymer composition so that the entire asphalt package may be melted in a kettle, e.g., for use in a roofing or paving application. The containers may have various features to enhance processability and handleability, including a generally rectangular shape and multi-faceted or stepped sides 20 and/or walls 30 with handhold portions and/or scooped portions.

Abstract: A consumable container is molded from a composition comprising 40 to 90 weight % of an asphalt and 10 to 60 weight % of a polymer material, which advantageously can include a first polymer such as PP that imparts heat resistance and a second polymer such as EVA that imparts toughness and impact resistance. This molded asphalt/polymer material preferably has an unnotched Izod impact strength of at least 2 joules. The container is consumable--it can be melted along with roofing asphalt held in the container without adversely affecting the properties of the asphalt and without requiring undue mixing. The composition also can be used to reduce fumes normally emitted from a kettle of molten asphalt, e.g., as measured by a reduction of the visual opacity of the fumes by at least 25%, a reduction of the hydrocarbon emissions of the fumes by at least 20%, or a reduction of the total suspended particulates emissions of the fumes by at least 15%. The container may be used, e.g.

Abstract: In a method for reducing emissions from an asphalt blowing process, an emission reducing additive is added to the asphalt prior to blowing, or early in the blowing process. The emission reducing additive is added in an amount sufficient to reduce the SO.sub.x emissions from the blowing process by at least 25 percent by weight when compared with the same process without the emission reducing additive. The emission reducing additive includes at least two compounds selected from metal hydroxides, metal oxides, metal carbonates and metal bicarbonates, where the metal is selected from sodium, potassium, calcium, magnesium, zinc, copper and aluminum.