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公开(公告)号:US20230159760A1
公开(公告)日:2023-05-25
申请号:US17922792
申请日:2020-05-04
Applicant: William J. KIRK , BASF SE
Inventor: William J. KIRK , Arlis A. KADRMAS , James T. ANDREWS , Kostas S. AVRAMIDIS , Kimberly L. WALDEN
CPC classification number: C08L95/005 , C08G18/6476 , C08G18/7664 , C08G18/12 , C08G18/69 , C08G18/48 , C08L2555/84
Abstract: Asphalt emulsions comprising asphalt present in an amount of 50% by weight or greater, based on the weight of the asphalt emulsion, an isocyanate present in an amount of 0.05% by weight or greater, based on the weight of the asphalt emulsion, and water. The isocyanate is derived from an aromatic, a cycloaliphatic, or an aliphatic isocyanate, or a mixture thereof. Preferably, the isocyanate includes methylene diphenyl diisocyanate. The asphalt emulsion can comprise one or more polyols. Methods of making the asphalt emulsions are also described.
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公开(公告)号:US20210017388A1
公开(公告)日:2021-01-21
申请号:US17042215
申请日:2019-01-28
Applicant: BASF SE
Inventor: Kostas S. AVRAMIDIS , James T. ANDREWS , William J. KIRK , Kimberly L. WALDEN , Arlis A. KADRMAS
Abstract: Provided herein are asphalt compositions comprising asphalt, a carboxylated copolymer, a polyalkyleneimine, and a photoinitiator. The carboxylated copolymer present in the asphalt compositions can be a latex composition derived from a carboxylated styrene-butadiene copolymer. The carboxylated copolymer includes from 0.5% to 25% by weight carboxylic acid monomers. The carboxylated styrene-butadiene polymer and the asphalt can be present in a weight ratio of from 1:99 to 1:10. The polyalkyleneimine present in the asphalt compositions can be in an amount of greater than 0% to up to 10% by weight of the asphalt composition. The photoinitiator can include benzophenone and/or a derivative thereof. Tack coats meeting ASTM-D-977 standard comprising the asphalt compositions disclosed herein are also provided. The tack coat can have a tack-free time of 10 minutes or less. Methods of producing the asphalt compositions and tack coats are also disclosed.
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