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

IPC: C08L95/00 ,  C08G18/64 ,  C08G18/76 ,  C08G18/12 ,  C08G18/69 ,  C08G18/48

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.

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

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

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.