公开(公告)号：US11891519B2

公开(公告)日：2024-02-06

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

IPC: C08L95/00 ,  C08L9/06 ,  C08L25/10

CPC classification number: C08L95/005 ,  C08L9/06 ,  C08L25/10 ,  C08L2555/22 ,  C08L2555/28 ,  C08L2555/84 ,  C08F212/08 ,  C08F220/1804 ,  C08F220/56 ,  C08F212/08 ,  C08F222/02 ,  C08F220/58

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.