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:
Jun. 16, 2026
Filed:
Apr. 13, 2021
Hindustan Petroleum Corporation Limited, Bengaluru, IN;
Naresh Kottari, Bengaluru, IN;
Sandip Bhowmik, Bengaluru, IN;
Venkatesan Santhanam, Bengaluru, IN;
Ravi Balasubramaniam, Bengaluru, IN;
HINDUSTAN PETROLEUM CORPORATION LIMITED, Bengaluru, IN;
Abstract
The present invention provides additive compound for warm mix asphalt (WMA) for the paving of road surfaces, whereby the additive compounds facilitate the mixing, lay down and compaction of asphalt mixes at low temperatures while retaining the mechanical properties of the asphalt composition. Further, the present invention provides a process of synthesis of the additive compounds. Additionally, the present invention provides a warm mix asphalt formulation involving the additive compounds and a method of preparation thereof. The chemical additives of the present invention are liquid surfactants that ensure reduction of internal friction during manufacturing, and subsequently formulations comprising these chemical additives results in reduction of compaction temperature of the bituminous mixtures.