The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 09, 2021
Filed:
Jul. 17, 2018
Kao Corporation, Tokyo, JP;
Ryoichi Hashimoto, Iwade, JP;
Ryoji Iwamoto, Wakayama, JP;
KAO CORPORATION, Tokyo, JP;
Abstract
The present invention relates to an asphalt composition having excellent durability after being dried, an asphalt mixture, and a method for producing an asphalt mixture. Disclosed are [1] an asphalt composition containing asphalt, a thermoplastic elastomer, and a polyester, wherein the polyester has a softening point of 90° C. or higher and 140° C. or lower and a glass transition point of 40° C. or higher and 80° C. or lower, and a ratio of the polyester is 1 part by mass or more and 17 parts by mass or less based on 100 parts by mass of the asphalt; [2] an asphalt mixture including the asphalt composition as set forth [1] and an aggregate; and [3] a method for producing an asphalt mixture, including a step of mixing a heated aggregate, asphalt, a thermoplastic elastomer, and a polyester, wherein the polyester has a softening point of 90° C. or higher and 140° C. or lower and a glass transition point of 40° C. or higher and 80° C. or lower, and a ratio of the polyester is 1 part by mass or more and 17 parts by mass or less based on 100 parts by mass of the asphalt.