Invention Grant
- Patent Title: Asphalt composition and method of using same in tack coats
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Application No.: US17042215Application Date: 2019-01-28
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Publication No.: US11891519B2Publication Date: 2024-02-06
- Inventor: Kostas S. Avramidis , James T. Andrews , William J. Kirk , Kimberly L. Walden , Arlis A. Kadrmas
- Applicant: BASF SE
- Applicant Address: DE Ludwigshafen am Rhein
- Assignee: BASF SE
- Current Assignee: BASF SE
- Current Assignee Address: DE Ludwigshafen am Rhein
- Agency: Faegre Drinker Biddle & Reath LLP
- International Application: PCT/US2019/015374 2019.01.28
- International Announcement: WO2019/190624A 2019.10.03
- Date entered country: 2020-09-28
- Main IPC: C08L95/00
- IPC: C08L95/00 ; C08L9/06 ; C08L25/10

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.
Public/Granted literature
- US20210017388A1 ASPHALT COMPOSITION AND METHOD OF USING SAME IN TACK COATS Public/Granted day:2021-01-21
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