WO2025222191 - LOW-CARBON, CARBON-NEUTRAL, AND CARBON-NEGATIVE ASPHALT COMPOSITES USING FUNCTIONALIZED BIOCHAR
National phase entry is expected:
Publication Number
WO/2025/222191
Publication Date
23.10.2025
International Application No.
PCT/US2025/025490
International Filing Date
19.04.2025
Title **
[English]
LOW-CARBON, CARBON-NEUTRAL, AND CARBON-NEGATIVE ASPHALT COMPOSITES USING FUNCTIONALIZED BIOCHAR
[French]
COMPOSITES D'ASPHALTE À FAIBLE TENEUR EN CARBONE, NEUTRES EN CARBONE ET NÉGATIFS EN CARBONE À L'AIDE D'UN BIOCHARBON FONCTIONNALISÉ
Applicants **
CARBONSILVANUS COMPANY
LI, Zhipeng
Inventors
SHI, Xianming
Priority Data
63/636,121
19.04.2024
US
Application details
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International Searching Authority |
USPTO
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| Recordal of a Change of the Applicant's Name/Address |
Change of Applicant's Name and Address
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| Type of Assignment |
The Standard Agent's Assignment
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| Applicant's Legal Status |
Legal Entity
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| Entry into National Phase under |
Chapter I
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| Patent Delivery |
Send the Letters Patent by Courier
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| Translation |
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* The data is based on automatic recognition. Please verify and amend if necessary.
** IP-Coster compiles data from publicly available sources. If this data includes your personal information, you can contact us to request its removal.
Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing, Examination, Granting | 2550 | |
| EPO | Filing, Examination, Granting | 17518 | |
| Japan | Filing, Examination, Granting | 2493 | |
| South Korea | Filing, Examination, Granting | 2861 | |
| USA | Filing, Examination, Granting | 7910 |
Total:
33,332
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Abstract[English]
Low-carbon, carbon-neutral, and carbon-negative asphalt composites are disclosed. The composites comprise an asphalt binder and a functionalized biochar incorporated as a partial replacement for the binder and/or mineral filler. The biochar is physically, chemically, or mineralogically modified to enhance dispersion, interfacial bonding, mechanical performance, and carbon sequestration. The invention further includes methods for producing such composites, biochar-based additive compositions, and kits for practical implementation. Applications include asphalt pavements, waterproofing membranes, crack sealants, conductive deicing systems, and VOC-reducing asphalt mixtures. The resulting materials demonstrate improved durability, thermal and electrical properties, and significant reductions in greenhouse gas emissions.[French]
L'invention concerne des composites d'asphalte à faible teneur en carbone, neutres en carbone et négatifs en carbone. Les composites comprennent un liant d'asphalte et un biocharbon fonctionnalisé incorporé en tant que remplacement partiel pour le liant et/ou la charge minérale. Le biocharbon est modifié physiquement, chimiquement ou minéralogiquement pour améliorer la dispersion, la liaison interfaciale, les performances mécaniques et la séquestration de carbone. L'invention concerne en outre des procédés de production de tels composites, des compositions d'additifs à base de biocharbon et des kits pour une mise en œuvre pratique. Des applications comprennent des revêtements en asphalte, des membranes d'imperméabilisation, des agents d'étanchéité de fissures, des systèmes de dégivrage conducteurs et des mélanges d'asphalte réduisant les COV. Les matériaux obtenus présentent une durabilité, des propriétés thermiques et électriques améliorées, et des réductions significatives des émissions de gaz à effet de serre.