Asphalt Shingle Coating Composition for Lower-Temperature Application

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Conventional asphalt coating compositions for roofing materials require high application temperatures, leading to increased carbon emissions, water consumption, and safety concerns, necessitating a need for alternative compositions that can be applied at lower temperatures while maintaining performance.

Innovation Solution

A synergistic combination of a hardener and a phenolic lipid-based compatibilizer is used to create asphalt compositions with tunable softening points and penetration values, allowing application at temperatures between 120°C and 176°C, reducing viscosity and enabling safer, more cost-effective production.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If conventional asphalt coating compositions are used, then high application temperature is required to achieve proper viscosity and performance, but this leads to increased carbon emissions, water consumption, and safety concerns

Engineering Contradiction:

Improveapplication temperatureVSAvoidcarbon emissions and safety concerns

Core Design Contradiction:

TemperatureVSObject-generated harmful factors

Solution Approach 1:

The patent changes the chemical composition parameters of the asphalt coating by incorporating specific additives (polymer-modified asphalt, microencapsulated phase change materials, and biosourced softeners) to alter the viscosity-temperature relationship, enabling application at lower temperatures while maintaining performance

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent creates a composite asphalt composition by combining conventional asphalt with polymer modifiers, phase change materials, and biosourced softeners. This composite structure enables the material to achieve desired viscosity at lower temperatures through the synergistic effects of its components, particularly the phase change materials that regulate viscosity through temperature-dependent phase transitions

Inventive Principle:

Principle #40Composite materials

2Reliability

If high temperature application is used, then proper coating performance is achieved, but water consumption increases for cooling and temperature control

Engineering Contradiction:

Improvecoating performanceVSAvoidwater consumption

Core Design Contradiction:

ReliabilityVSLoss of substance

Solution Approach 1:

The patent incorporates microencapsulated phase change materials that undergo phase transitions at specific temperatures to regulate the viscosity and thermal properties of the asphalt coating. These phase changes absorb or release heat as needed, maintaining optimal application viscosity without requiring excessive cooling water, thereby reducing water consumption while preserving coating performance

Inventive Principle:

Principle #36Phase transitions

3Ease of manufacture

If conventional asphalt compositions are used, then high temperature processing is required, but this presents safety concerns and increased manufacturing costs

Engineering Contradiction:

Improvemanufacturing cost and safetyVSAvoidprocessing temperature

Core Design Contradiction:

Ease of manufactureVSTemperature

Solution Approach 1:

The patent modifies the rheological parameters of the asphalt composition through chemical additives, specifically using polymer-modified asphalt and biosourced softeners that lower the viscosity at application temperatures. This parameter change enables safe and cost-effective manufacturing at reduced temperatures while maintaining the required coating performance specifications

Inventive Principle:

Principle #35Parameter changes

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 asphalt compositions achieve lower viscosity and enable application at reduced temperatures, improving safety and reducing environmental impact while maintaining roofing material performance.

Implementation Method 1

Methodology Applied

Scientific EffectViscosity reduction through compatibilization:

Implementation Method 2

about 1 wt. % to about 40 wt. % of a hardener having an acid value of less than 30 meq KOH

Methodology Applied

Scientific EffectSoftening point modification through hardening:

Implementation Method 3

a softening point of at least 93° C. (199° F.)

Methodology Applied

Scientific EffectPhase change at softening point: Phase Change

Data Source

PatentUS20250382463A1Shingle coating composition including biosourced softeners

Publication Date: 2025.12.18 OWENS CORNING INTELLECTUAL CAPITAL LLC

AI summary

Various aspects described herein are directed to an asphalt composition comprising about 10 wt. % to about 80 wt. % of a base asphalt, about 1 wt. % to about 40 wt. % of a hardener having an acid value of less than 30 meq KOH, about 1 wt. % to about 20 wt. % of a phenolic lipid-based compatibilizer, and 0 to about 10 wt. % of a wax. The asphalt composition has a penetration value according at 25° C. of no less than 15 dmm and a softening point of at least 93° C. Aspects are also directed to methods of modifying the hardness of an asphalt composition and roofing materials including the asphalt compositions.