Patents Assigned to PRI Asphalt Technologies Inc.
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Patent number: 10941296Abstract: A asphalt binder modifier or a stand-alone asphalt binder and the method of making the asphalt binder or binder modifier are disclosed. The asphalt modifier or binder consisting of treated re-refined engine oil bottoms/VTB's treated by injecting air into re-refining engine oil bottoms/VTB's at temperatures between 150° F. and 550° F. The re-refined engine oil can be processed with ground tire rubber. The binder modifier was blended with various paving and roofing asphalts to form performance-enhanced modified asphalt binders used in paving, roofing, and industrial products.Type: GrantFiled: March 8, 2018Date of Patent: March 9, 2021Assignee: PRI Asphalt Technologies, Inc.Inventor: Kenneth F. Grzybowski
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Patent number: 9944796Abstract: A asphalt binder modifier or a stand-alone asphalt binder and the method of making the asphalt binder or binder modifier are disclosed. The asphalt modifier or binder consisting of treated re-refined engine oil bottoms/VTB's treated by injecting air into re-refining engine oil bottoms/VTB's at temperatures between 150° F. and 550° F. The re-refined engine oil can be processed with ground tire rubber. The binder modifier was blended with various paving and roofing asphalts to form performance-enhanced modified asphalt binders used in paving, roofing, and industrial products.Type: GrantFiled: February 23, 2015Date of Patent: April 17, 2018Assignee: PRI ASPHALT TECHNOLOGIES, INC.Inventor: Kenneth F. Grzybowski
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Publication number: 20140213699Abstract: Disclosed herein are an asphalt concrete mixture, an asphalt binder composition, and methods of preparing the related compositions. The asphalt binder compositions include a polyphosphoric acid, a macromolecular polymer having a saturated backbone with macromolecular modifications, sulfur, and non-surfactant additives based on wax chemistry. The compositions are capable of being performance graded and being used in warm mix asphalt applications.Type: ApplicationFiled: March 28, 2014Publication date: July 31, 2014Applicants: PRI Asphalt Technologies, Inc., Saudi Arabian Oil CompanyInventors: Milind M. Vaidya, Anwar H. Khawajah, Rashid M. Othman, Laurand Lewandowski
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Patent number: 8722771Abstract: Disclosed herein are an asphalt concrete mixture, an asphalt binder composition, and methods of preparing the related compositions. The asphalt binder compositions include a polyphosphoric acid, a macromolecular polymer having a saturated backbone with macromolecular modifications, sulfur, and non-surfactant additives based on wax chemistry. The compositions are capable of being performance graded and being used in warm mix asphalt applications.Type: GrantFiled: November 3, 2010Date of Patent: May 13, 2014Assignees: Saudi Arabian Oil Company, PRI Asphalt Technologies, Inc.Inventors: Milind M. Vaidya, Anwar H. Khawajah, Rashid M. Othman, Laurand Lewandowski
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Patent number: 7202290Abstract: A modified asphalt composition is provided comprising at least one plastomer, at least one elastomer, at least one crosslinking agent and asphalt. More specifically, a modified asphalt composition is provided comprising an oxidized polyethylene, a styrene-butadiene-styrene block copolymer, sulfur, and asphalt. A hot mix asphalt composition is also provided comprising the modified asphalt composition and aggregate. Processes for producing the modified asphalt composition and the hot mix asphalt composition are also provided as well as articles produced from these inventive compositions.Type: GrantFiled: November 12, 2003Date of Patent: April 10, 2007Assignees: Eastman Chemical Company, PRI Asphalt Technologies Inc.Inventors: Richard Kingsley Stuart, Jr., Jeffery Lynn Presley, Kenneth Francis Grzybowski
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Patent number: RE42165Abstract: A modified asphalt composition is provided comprising at least one plastomer, at least one elastomer, at least one crosslinking agent and asphalt. More specifically, a modified asphalt composition is provided comprising an oxidized polyethylene, a styrene-butadiene-styrene block copolymer, sulfur, and asphalt. A hot mix asphalt composition is also provided comprising the modified asphalt composition and aggregate. Processes for producing the modified asphalt composition and the hot mix asphalt composition are also provided as well as articles produced from these inventive compositions.Type: GrantFiled: December 4, 2008Date of Patent: February 22, 2011Assignees: Westlake Longview Corp., PRI Asphalt Technologies, Inc.Inventors: Richard Kingsley Stuart, Jr., Jeffery Lynn Presley, Kenneth Francis Grzybowski