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公开(公告)号：US11377560B2
公开(公告)日：2022-07-05
申请号：US16694273
申请日：2019-11-25
Inventor： Jonathan D. Webb , Nadjib Boussad , Katherine L. Sokol , Patrick Brant
Abstract: Modified asphalts and methods for producing the same are disclosed. The modified asphalts can include asphalt having a T5 boiling point of 400° C. or more, an olefin compound, and an acid promoter. The modified asphalt can include at least a portion of the olefin compound chemically grafted to at least a portion of the asphalt. The method can include exposing the asphalt, olefin compound, and acid promoter to a temperature of about 160° C. or more.
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