Market Context — Why This Technology, Why Now

Mounting global environmental regulations and consumer demand for sustainable products are forcing industries to rethink material lifecycles. Traditional thermoset epoxies, widely used in electronics, automotive, and wind energy, pose significant recycling hurdles. This technology offers a strategic advantage by enabling true material circularity, reducing landfill burden, and providing a competitive edge in markets increasingly valuing eco-friendly manufacturing processes and resource efficiency.

Key Competitive Advantages
01

Enables complete circularity for epoxy resins through decomposition and re-hardening, a challenge for conventional thermosets.

02

Maintains high performance in material recycling, recovering near-original monomers for re-hardening with minimal property degradation.

03

Secures strong differentiation in a competitive field, achieving patentability despite 11 prior art references, highlighting a distinct competitive edge.

Market Opportunity
Electronics and Semiconductors 📱
$1.5B–$2.5B globally (AI est.)
Recycling epoxy resins used extensively in printed circuit boards and semiconductor encapsulants directly enhances resource efficiency, reduces waste, and strengthens compliance with environmental regulations.
Major electronics manufacturers Semiconductor packaging companies PCB material suppliers
Automotive and Aerospace 🚗
$1B–$2B globally (AI est.)
Epoxy resins are critical for lightweight composite materials in automotive and aerospace, but their recycling has been challenging. This technology accelerates the development of lightweight, sustainable mobility solutions.
Automotive composite manufacturers Aerospace material suppliers Electric vehicle component producers
Wind Energy 🌬️
$0.5B–$1B globally (AI est.)
Large wind turbine blades are made from epoxy composites, posing significant disposal challenges. Recyclable epoxy enables the circular use of these blades, supporting sustainable energy infrastructure.
Wind turbine blade manufacturers Renewable energy infrastructure developers Composite recycling specialists
Construction and Infrastructure 🏗️
$0.5B–$1.5B globally (AI est.)
Recycling epoxy used in adhesives, coatings, and repair materials contributes to reducing construction waste and efficient resource utilization, supporting sustainable urban development.
Construction chemical suppliers Infrastructure repair material producers Sustainable building material developers
IP Defensibility — Why Competitors Can't Replicate This
What This Patent Covers

This patent provides robust protection for a decomposable and recyclable epoxy resin composition, specifically covering monomer structures with disulfide bonds and their hardener combinations. It is a stable right, having overcome multiple prior art challenges during examination, ensuring a secure foundation for licensees.

Competitive White Space

This patent focuses on disulfide bond chemistry for epoxy recycling. White space exists in exploring alternative chemical decomposition mechanisms for thermosets, developing hybrid recyclable polymer systems, or integrating this technology into novel additive manufacturing processes.

Economic Impact
~$150K/year estimated waste treatment cost reduction per facility (est.)
estimated ROI · USD · AI analysis
ROI Calculation Logic

Assuming a company generates 1,000 tons of epoxy resin waste annually, with a disposal cost of ~$335/ton (AI est.), this technology could reduce costs by 50%. This projects an annual saving of ~$165K (AI est.) (1,000 tons × $335/ton × 50%). This also contributes to reduced virgin material procurement, offering multifaceted economic benefits.

Speed to Market
4× faster than in-house development
Developing a similar decomposable and recyclable epoxy resin in-house would require approximately 4 years for fundamental research, material design, performance evaluation, and stability verification. This technology, developed by the National Institute for Materials Science (NIMS), has established academic and technical foundations. The patent details specific monomer structures and hardener combinations, enabling licensees to aim for product commercialization and market entry within approximately 1 year after acquiring the license.
Competitive Positioning

X: Resource Circularity Efficiency
Y: Material Performance Retention

Business Models & Applications
📝 Technology Licensing Model
Granting manufacturing and sales rights for this technology to epoxy resin producers or end-product manufacturers to promote widespread industrial adoption and generate revenue.
🤝 Joint Development & Partnership Model
Collaborating with material or component manufacturers to optimize the technology for specific applications, accelerating time-to-market and expanding business scope.
📦 Recycled Material Supply Model
Supplying recovered and refined recycled epoxy resin as a new high-performance material to the market, establishing a circular supply chain.
Adjacent Application Opportunities
💻 Electronics Components
Recyclable Printed Circuit Boards
Applying this technology to adhesives and insulating materials in PCBs could enable efficient separation and recovery of metals and semiconductor chips from end-of-life boards, potentially reducing electronic waste by over 30% and fostering next-generation circular PCBs.
🚀 Aerospace
Self-Healing, Recyclable Lightweight Composites
Integrating this technology into epoxy composites for aircraft and spacecraft could enable self-healing capabilities for extended component lifespan and material recycling during repair, potentially reducing manufacturing and operational costs by 15-20% while lowering environmental impact.
♻️ Circular Economy
High-Efficiency Urban Mining Material Recovery
This technology could enable efficient decomposition and removal of epoxy resin components from consumer electronics and automobiles, facilitating high-purity recovery of precious metals and rare earths. This could boost material recovery rates from urban mining by up to 40%.
Integration Roadmap — Estimated 22-Month Deployment
Phase 1: Fundamental Study and Design
Duration: 4 months
Conduct formulation design and initial evaluation to adapt the technology's monomers and hardeners to existing manufacturing processes.
Phase 2: Prototyping and Evaluation
Duration: 9 months
Manufacture prototypes and perform detailed evaluations of decomposition/re-hardening performance, mechanical properties, and durability.
Phase 3: Mass Production and Implementation
Duration: 9 months
Optimize processes for mass production, then proceed with integration into existing production lines and market deployment.
Technical Feasibility
This technology specifies a clear material composition in its claims: an epoxy resin monomer with disulfide bonds and a hardener. This suggests relatively easy integration into existing epoxy resin manufacturing processes through material substitution and formulation adjustments. It is highly probable that new high-performance recyclable materials can be produced utilizing existing chemical reaction and molding equipment, without requiring significant capital investment.
Success Scenario
Upon adopting this technology, up to 70% of currently discarded epoxy resin products could be reused as resources. This is estimated to reduce new material procurement costs by several million USD annually (AI est.), significantly enhancing corporate ESG ratings and brand value. It is also expected to achieve a reduction in environmental impact across the product lifecycle and improve adaptability to new environmental regulations.
Patent Record
APPLICATION NO.
特願2021-074440
REGISTRATION NO.
7761248
FILING DATE
2021/04/26
GRANT DATE
2025/10/20
EXPIRATION DATE
2041/04/26
PATENT HOLDER
国立研究開発法人物質・材料研究機構
Examination History
2024年03月27日
手続補正書（自発・内容）
2024年03月27日
出願審査請求書
2024年12月17日
拒絶理由通知書
2025年02月14日
意見書
2025年02月14日
手続補正書（自発・内容）
2025年05月07日
拒絶理由通知書
2025年06月19日
手続補正書（自発・内容）
2025年06月19日
意見書
2025年09月30日
特許査定