Asphalt Preservation Coating That Rejuvenates Without Surface Buildup

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Solution Overview

Problem

Existing asphalt surfaces deteriorate due to oxidation and water seepage, necessitating frequent resurfacing that raises the surface level and adds to the load on bridges, and conventional recycling methods are costly and environmentally harmful.

Innovation Solution

A biobased ester and monoterpene mixture, including styrene-butadiene complex and carbon black pigment, is applied to asphalt surfaces to rejuvenate and strengthen the asphalt matrix, providing a dark, durable seal that penetrates and reverses oxidation without adding layers.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional resurfacing methods are used to restore asphalt surfaces, then the surface condition is improved, but the surface level rises and additional load is added to bridges

Engineering Contradiction:
Improveasphalt surface conditionVSAvoidload on bridges
Core Design Contradiction:
ReliabilityVSWeight of moving object

Solution Approach 1:

The invention extracts and removes the light oil that has vaporized from the asphalt, restoring the original asphalt material to its initial condition without adding new layers. This eliminates the need for additional roadway layers while maintaining surface integrity.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The invention recovers the lost light oil through the application of a specially formulated composition that replenishes the vaporized binder, effectively restoring the asphalt's original properties without requiring overlay materials that would add weight.

Inventive Principle:
Principle #34Discarding and recovering

2Reliability

If conventional recycling methods are used to restore asphalt surfaces, then the surface is rejuvenated, but the process is costly and environmentally harmful

Engineering Contradiction:
Improveasphalt surface restorationVSAvoidenvironmental impact
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The invention changes the chemical parameters of the asphalt by applying a composition containing specific esters, monoterpenes, and other compounds that chemically restore the asphalt binder's properties, providing an environmentally friendly alternative to conventional recycling methods.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The invention uses a composite formulation containing multiple components (biobased esters, monoterpenes, propylene glycol methyl ether acetate, liquid intermediate from polystyrene foam, carbon black pigment, and styrene-butadiene complex) that work together to restore asphalt surfaces without environmental harm.

Inventive Principle:
Principle #40Composite materials

3Duration of action of stationary object

If additional roadway layers are applied to resurface asphalt, then the surface durability is improved, but the surface level rises and bridge load increases

Engineering Contradiction:
Improveasphalt surface durabilityVSAvoidsurface level
Core Design Contradiction:
Duration of action of stationary objectVSLength of stationary object

Solution Approach 1:

The invention replaces the mechanical approach of adding physical layers with a chemical approach that penetrates and restores the existing asphalt matrix, thereby extending durability without increasing surface level or bridge load.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The composition penetrates into the porous structure of the existing asphalt, restoring durability from within the material matrix rather than adding external layers, thus maintaining the original surface level.

Inventive Principle:
Principle #31Porous materials

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The solution extends the life of asphalt surfaces by rejuvenating and darkening them, reducing the need for frequent resurfacing and minimizing environmental impact.

Implementation Method 1

penetrates and reverses oxidation without adding layers

Methodology Applied
Scientific EffectOxidation reversal: Oxidation

Implementation Method 2

carbon black pigment... providing a dark, durable seal

Methodology Applied
Scientific EffectPigmentation: Absorption (EM radiation)

Implementation Method 3

styrene-butadiene complex... rejuvenate and strengthen the asphalt matrix

Methodology Applied
Scientific EffectPolymer reinforcement: Chemical Bonding

Data Source

PatentEP4647468A1Agricultural oil seal and preservation agent
Publication Date: 2025.11.12 BIOSPAN TECHNOLOGIES INC
  • EP4647468A1 patent drawing
  • EP4647468A1 patent drawing
  • EP4647468A1 patent drawing

AI summary

This invention is in the field of asphalt construction or pavement applications, compositions and methods of use thereof. The invention also relates to methods of using the composition to surface seal and as a penetrating preservation agent to extend the life of the asphalt construction or pavement. The present invention relates to asphalt repair compositions, sealing or coating compositions, and methods for coating structures such as roadways, such as asphaltic surfaces to improve structure lifetime.