Ergon has been granted a patent for asphalt binders that incorporate sterols, improving their rheological properties. The patent also includes methods for determining changes or improvements in these properties. The composition includes a combination of ingredients, including a virgin asphalt binder, a reclaimed asphalt material, and 0.5 wt % to 15 wt % of one or more triterpenoids. GlobalData’s report on Ergon gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on Ergon, Sustainable bituminous compositions was a key innovation area identified from patents. Ergon's grant share as of September 2023 was 49%. Grant share is based on the ratio of number of grants to total number of patents.
The patent is granted for an asphalt binder composition with triterpenoids
A recently granted patent (Publication Number: US11760882B2) discloses an asphalt binder composition that includes a combination of ingredients. The composition comprises a virgin asphalt binder, a reclaimed asphalt material, and one or more triterpenoids. The reclaimed asphalt material can be either reclaimed asphalt pavement or reclaimed asphalt shingles. The aged asphalt binder in the reclaimed material constitutes 5 wt % to 60 wt % of the total amount of the virgin asphalt binder and the aged asphalt binder. The one or more triterpenoids are present in the composition in a range of 0.5 wt % to 15 wt % based on the weight of the virgin asphalt binder.
The patent also describes various additional components that can be included in the asphalt binder composition. These components include an aromatic process oil, a softening agent, an elastomer, a non-bituminous binder, and ground tire rubber. The composition can also include a bioderived softening agent, a paraffinic oil, a naphthenic oil, a waste engine oil, or a synthetic oil as the softening agent. The total amount of asphalt binder in the composition can range from 60 wt % to 95 wt % of the virgin asphalt binder and 5 wt % to 40 wt % of the aged asphalt binder.
The patent further discloses methods of making an asphalt pavement composition using the asphalt binder composition described. The method involves combining the asphalt binder composition with an aggregate. Additionally, a method of making the asphalt binder composition itself is described, which involves combining the virgin asphalt binder, the reclaimed asphalt material, and the one or more triterpenoids.
The patent also covers a compacted asphalt pavement produced using the asphalt pavement composition described. The compacted asphalt pavement is made by compacting the asphalt pavement composition, which includes the virgin asphalt binder, the reclaimed asphalt material, the one or more triterpenoids, and the aggregate.
Overall, this patent presents an asphalt binder composition that incorporates reclaimed asphalt material and triterpenoids, along with various optional components. The composition and methods described aim to improve the performance and properties of asphalt pavements, potentially leading to more durable and sustainable road surfaces.
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GlobalData, the leading provider of industry intelligence, provided the underlying data, research, and analysis used to produce this article.
GlobalData’s Patent Analytics tracks patent filings and grants from official offices around the world. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
