Company patents

DOW TORAY CO., LTD.

DOW TORAY CO., LTD. demonstrates a patent strategy heavily focused on foundational materials science, with Polymer Synthesis (Polycondensation) representing 52.6% of its portfolio. While many categories saw significant year-over-year growth in 2024, such as Polymer Working & Compounding (+180.0%) and Coating Compositions (Paints, Inks) (+150.0%), a surprising trend is the widespread decline across most categories in 2025 and so far in 2026, indicating a potential shift in R&D investment or a more selective patenting approach after a surge in 2024.

Patent Trend by Technology Area

Yearly patent publications since 2023

Product themes

Product-level themes inferred from filings since 2023, with category chips showing where each theme appears. Select a theme to filter the patents below.

173 US filings (since 2023) · 12 categories · 28 themes

Functionalized Polysiloxanes

Synthesis and modification of polysiloxane polymers to introduce specific functional groups or structures, enhancing properties for applications like composites, coatings, biomedical uses, or powder treatment.

Polymer Synthesis (Polycondensation)
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111since 2023
-18.9%YoY
Advanced Curing Chemistries

Novel formulations and mechanisms for initiating or controlling the polymerization and cross-linking of adhesives, including dual-curing systems, radical polymerization, and partial curing for tailored material properties.

AdhesivesCoating Compositions (Paints, Inks)
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82since 2023
-44.1%YoY
Polymer Composites with Functional Fillers

Polymer compositions incorporating inorganic or organic filler materials to impart specific functional properties such as thermal conductivity, flame retardancy, electrical conductivity, or enhanced mechanical strength and dimensional stability.

Polymer CompositionsPolymer AdditivesCoating Compositions (Paints, Inks)Polymer Working & CompoundingPolymer Synthesis (Polymerization)
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28since 2023
+83.3%YoY
Functional Coatings and Surface Modifiers

Additives or compositions specifically formulated for surface application or modification to impart protective, decorative, or specialized functional properties to polymer products.

Coating Compositions (Paints, Inks)Polymer Additives
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27since 2023
-33.3%YoY
Hot-Melt Adhesive Formulations

Development of adhesive compositions that are applied in a molten state and solidify upon cooling, focusing on specific polymer blends, additives, and their resulting mechanical or optical properties.

Adhesives
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26since 2023
-53.8%YoY
Adhesion Promoters & Surface Tolerance

Chemical additives or surface treatment methods aimed at improving the bonding strength of adhesives to various substrates, including those with challenging surface chemistries or contaminants.

Adhesives
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22since 2023
-55.6%YoY
Polymers for Electronic Devices

Synthesis and formulation of polymers, such as epoxy resins, polyimides, or ionic binders, tailored for specific functions in electronic components like sealing, insulation, or energy storage.

Polymer Synthesis (Polycondensation)
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16since 2023
+133.3%YoY
Optically Clear Adhesives

Adhesive formulations designed for high transparency and minimal light distortion, primarily used in optical components, display devices, and protective films where visual clarity is paramount.

Adhesives
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12since 2023
-50.0%YoY
Emulsion & Stabilizer Technologies

Innovations in creating stable cosmetic formulations, particularly oil-in-water or water-in-oil emulsions, and developing novel stabilizers or rheology modifiers for desired texture, feel, and shelf-life.

Cosmetics & Personal Care Use
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11since 2023
-40.0%YoY
Biomedical Polymer Formulations

Polymer compositions tailored for medical and biological applications, including implantable devices, drug delivery systems, and diagnostic tools, emphasizing properties like biocompatibility, hydrolysis resistance, optical clarity, and specific mechanical characteristics.

Polymer CompositionsPolymer Synthesis (Polymerization)
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11since 2023
-60.0%YoY
Encapsulation Materials & Processes

Development and application of resin compositions, molding compounds, and underfill materials to protect semiconductor devices from environmental factors, moisture, mechanical stress, and for structural integrity.

Semiconductor Packaging & Encapsulation
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9since 2023
0.0%YoY
Thermally Conductive Additives

Materials added to polymers to modify their thermal transfer properties, typically increasing conductivity for heat dissipation in applications like electronics or battery packs.

Polymer Additives
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7since 2023
-50.0%YoY
Flexible Electronic Films & Electrodes

Thin, multi-layered films and structures specifically designed for electronic applications, including flexible substrates for devices, display panel components, and active material layers for battery electrodes.

Layered Products (Laminates, Films)
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6since 2023
+200.0%YoY
Polymer Film and Membrane Fabricationfiltered

Techniques for manufacturing thin polymer layers, sheets, or multi-layer structures, often optimized for specific properties such as flexibility, barrier function, filtration, or mechanical strength.

Polymer Working & Compounding
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6since 2023
-50.0%YoY
Adhesion and Curing Modifiers

Substances incorporated into polymer systems to control or enhance adhesive properties, cross-linking reactions, or processing characteristics such as mold release and flow.

Polymer Additives
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6since 2023
-75.0%YoY
Sustainable Polymer Materials

Development and application of polymer compositions designed for reprocessability, recyclability, or incorporating sustainable additives, often featuring reversible bonds or bio-based components.

Polymer Synthesis (Polycondensation)Polymer AdditivesPolymer Working & Compounding
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4since 2023
+200.0%YoY
Urethane/Urea Polymerization

Methods for synthesizing polyurethanes and polyureas, including non-isocyanate routes, using various monomers, catalysts, and curing agents, often for foams, coatings, or adhesives.

Polymer Synthesis (Polycondensation)
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4since 2023
-50.0%YoY
Electronics Encapsulation & Sealing

Materials and processes for hermetic encapsulation, conformal coating, optical chip sealing, and stretchable conductors for electronic and optoelectronic devices.

Semiconductor Packaging & Encapsulation
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4since 2023
0.0%YoY
Elastomer Formulations for Performance

Development of rubber and elastomer compositions, often involving specific polymer blends, additives (e.g., process oils, reinforcing agents), and cure packages, to achieve desired mechanical properties like abrasion resistance, wet grip, shear durability, or flexibility for demanding applications.

Polymer Compositions
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3since 2023
+100.0%YoY
Sustainable & Reversible Adhesives

Adhesive technologies focused on environmental benefits such as biodegradability, natural origin, or designed for easy debonding and re-bonding to facilitate recycling, reuse, or specific application needs.

Adhesives
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3since 2023
new
High-Performance Thermally Stable Resins

Polymer compositions engineered for enhanced heat resistance, thermal stability in molten states, or improved processability at high temperatures, often involving specific copolymers, blends, or stabilizing additives for applications in electronics or automotive.

Polymer Compositions
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3since 2023
0.0%YoY
Light-Releasable Adhesives

Adhesive systems designed to lose their adhesive properties or debond upon exposure to specific wavelengths of light, often utilized for temporary bonding in sensitive manufacturing processes like semiconductor fabrication.

Adhesives
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3since 2023
new
Phenolic Epoxy Resins

Synthesis and formulation of epoxy resins, often derived from phenolic precursors like cardanol and vanillin, for applications requiring specific thermal, mechanical, or electrical properties.

Polymer Synthesis (Polycondensation)
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2since 2023
new
Polymer Particle and Powder Production

Methods for creating fine polymer particles, powders, or microspheres with controlled size, morphology, and distribution, used as raw materials or for specific applications.

Polymer Working & Compounding
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2since 2023
+100.0%YoY
Photopolymerization for Device Fabrication

Light-initiated polymerization processes used to create structures, coatings, or components, particularly for electronic devices, displays, or additive manufacturing, often involving photoinitiators and specific monomer/oligomer compositions.

Polymer Synthesis (Polymerization)
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2since 2023
0.0%YoY
Smart/Responsive Polymer Materials

Polymer compositions designed to change their properties (e.g., shape, optical transmittance, solubility) in response to external stimuli such as pH, temperature, light, or chemical presence, enabling applications in sensors, smart windows, or controlled release.

Polymer Compositions
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1since 2023
new
Oral Care Formulations

Compositions specifically developed for maintaining oral hygiene, preventing dental issues like cavities and gingivitis, and improving cosmetic aspects such as teeth whitening.

Cosmetics & Personal Care Use
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1since 2023
new
Sulfate-Free & Mild Cleansing

Development of personal care compositions that achieve effective cleansing and conditioning benefits while avoiding harsh sulfated surfactants, often using alternative, milder surfactant systems.

Cosmetics & Personal Care Use
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1since 2023
new

Patents

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