Abstract: Disclosed is a method of producing an industrial asphalt from a bituminous material. One preferred embodiment comprises mixing together without air-blowing:a. a feed material comprising a bituminous material having a viscosity of at least 50 centistokes at 350.degree. F. and wherein said feed material forms a single phase when mixed with 5 percent of 85 percent phosphoric acid; andb. from about 0.1 to 20.0 percent by weight of phosphoric acid, said mixing being done at a temperature in the range of 351.degree. to 600.degree. F., whereby the softening point of the feed is substantially increased and the penetration is significantly decreased.

Abstract: Disclosed is a method of producing an industrial asphalt from a bituminous material. One preferred embodiment comprises mixing together without air-blowing:a. a feed material comprising a bituminous material having a viscosity of at least 50 centistokes at 350.degree. F. and wherein said feed material forms a single phase when mixed with 5 percent of 85 percent phosphoric acid; andb. from about 0.1 to 20.0 percent by weight of phosphoric acid, said mixing being done at a temperature in the range of 351.degree. to 600.degree. F., whereby the softening point of the feed is substantially increased and the penetration is significantly decreased.A second preferred embodiment comprises heating at an elevated temperature a mixture comprising:1. from about 0.1 to 20.0 percent by weight green phosphoric acid, and2. a bituminous material to make up 100 percent by weight, said bituminous material comprising asphalt.

Abstract: Disclosed is a one-step method of producing an industrial asphalt from a bituminous material which comprises mixing together without air-blowing:(a) a feed material comprising a bituminous material having a viscosity of at least 50 centistokes at 350 degrees Fahrenheit and wherein the feed petroleum residuum forms a single phase when mixed with 5 percent of paratoluene sulfonic acid; and(b) from about 0.1 to 20.0 percent by weight of an organic sulfonic acid, said mixing being done at a temperature in the range of 351 to 600 degrees Fahrenheit, whereby the softening point of the feed is substantially increased and the penetration is significantly decreased.

Abstract: Disclosed is a one-step method of producing an industrial asphalt from a bituminous material which comprises mixing together without air-blowing:(a) a feed material comprising a bituminous material having a viscosity of at least 50 centistokes at 350 degrees Fahrenheit and wherein the feed petroleum residuum forms a single phase when mixed with 5 percent ferric chloride; and(b) from about 0.1 to 20.0 percent by weight of ferric chloride, said mixing being done at a temperature in the range of 351 to 600 degrees Fahrenheit, whereby the softening point of the feed is substantially increased and the penetration is significantly decreased.

Abstract: Disclosed is a one-step method of producing an industrial asphalt from a bituminous material which comprises mixing together without air-blowing:(a) a feed material comprising a bituminous material having a viscosity of at least 50 centistokes at 350 degrees Fahrenheit and wherein the feed forms a single phase when mixed with 5 weight percent zinc chloride; and(b) from about 0.1 to 20.0 percent by weight of zinc chloride, said mixing being done at a temperature in the range of 351 to 600 degrees Fahrenheit, whereby the softening point of the feed is substantially increased and the penetration is significantly decreased.

Abstract: Disclosed is a one-step method of producing an industrial asphalt from a bituminous material which comprises mixing together without air-blowing:(a) a feed material comprising a bituminous material having a viscosity of at least 50 centistokes at 350 degrees Fahrenheit and wherein the feed material forms a single phase when mixed with 5 weight percent maleic anhydride; and(b) from about 0.1 to 20.0 percent by weight of maleic anhydride, said mixing being done at a temperature in the range of 351 to 600 degrees Fahrenheit, whereby the softening point of the feed is substantially increased and the penetration is significantly decreased.

Abstract: Disclosed is a one-step method of producing an industrial asphalt from a bituminous material which comprises mixing together without air-blowing:(a) a feed material comprising a bituminous material having a viscosity of at least 50 centistokes at 350 degrees Fahrenheit and wherein the feed petroleum residuum forms a single phase when mixed with 5 weight percent hydrobromic acid; and(b) from about 0.1 to 20.0 percent by weight hydrobromic acid, said mixing being done at a temperature in the range of 351 to 600 degrees Fahrenheit, whereby the softening point of the feed is substantially increased and the penetration is significantly decreased.

Abstract: Disclosed is a one-step method of producing an industrial asphalt from a bituminous material which comprises mixing together without air-blowing:(a) a feed material comprising a bituminous material having a viscosity of at least 50 centistokes at 350 degrees Fahrenheit and wherein the feed petroleum residuum forms a single phase when mixed with 5 weight percent phytic acid; and(b) from about 0.1 to 20.0 percent by weight of phytic acid, said mixing being done at a temperature in the range of 351 to 600 degrees Fahrenheit, whereby the softening point of the feed is substantially increased and the penetration is significantly decreased.

Abstract: Disclosed is a one-step method of producing an industrial asphalt from a bituminous material which comprises mixing together without air-blowing:(a) a feed material comprising a bituminous material having a viscosity of at least 50 centistokes at 350 degrees Fahrenheit and wherein the feed petroleum residuum forms a single phase when mixed with 5 percent of 98 percent sulfuric acid; and(b) from about 0.1 to 20.0 percent by weight of sulfuric acid, said mixing being done at a temperature in the range of 351 to 600 degrees Fahrenheit, whereby the softening point of the feed is substantially increased and the penetration is significantly decreased.

Abstract: An open-graded emulsified asphalt paving mix is provided comprising a major portion of open-graded aggregate and a minor portion of cationic or anionic bituminous emulsion, the mix containing a minor portion of a polyelectrolyte having the opposite electric charge from that of the asphalt emulsifier which imparts excellent water resistance properties to pavement prepared from the mix. A method for producing the polyelectrolyte in situ is also provided.

Abstract: A method for producing air-blown industrial asphalt using asphalt, ethylene/vinyl-acetate copolymer and an air-blowing catalyst is disclosed. The EVA copolymer is present in a weight percent of from 1 weight percent to 10 weight percent. Also disclosed is the asphalt composition resulting from the air-blowing method.

Abstract: An asphalt composition for air-blowing is disclosed comprising asphalt flux, ethylene/vinyl-acetate copolymer, and an air-blowing catalyst. The EVA copolymer is present in a weight percent of from 1 weight percent to 10 weight percent and is comprised of from 35 to 45 vinyl acetate.

Abstract: A method for depositing asphalt from an asphalt emulsion onto an aggregate is disclosed comprising wetting the aggregate with water containing between about 0.01 weight percent and about 1.0 weight percent of coupling agent selected to have charge opposite to the charge of said asphalt emulsion and applying said asphalt emulsion to the wetted aggregate.

Abstract: A process for air-blowing asphalt in the presence of ferrous chloride and an asphalt composition comprising a major amount of asphalt and a minor but effective amount of ferrous chloride.

Abstract: A method is provided for stabilizing a polymerizable premix composition for use in preparing a polyurethane surface and the resulting composition. An aromatic hydrocarbon resin is used to achieve the stabilization.

Abstract: A method is provided for stabilizing a polymerizable premix composition for use in preparing a polyurethane surface and the resulting composition. An aliphatic polyamide is used to achieve the stabilization.

Abstract: A method is provided for stabilizing a polymerizable premix composition for use in preparing a polyurethane surface and the resulting composition. Lower alkane polyol esters of rosin acids are employed in achieving the stabilization.