ISOCYANATE ACRYLATE

Isocyanate acrylate formulations are increasingly employed in photopolymer resins, allowing for the creation of customizable, durable, and high-resolution parts with tailored mechanical properties. 
Isocyanate acrylate is also used as a crosslinker in the manufacture of many resins, in electrodeposition, and adhesives, and as a co-monomer in crosslinked polymer polyolstyrene-acrylic resin, which is used in construction products, such as ceramic tile adhesives, fillers, putties, and elastomeric roof coatings.
Isocyanate acrylate is a type of chemical compound that combines the reactive functional groups of both isocyanates and acrylates, making it highly useful in producing fast-curing and durable materials, especially in industrial coatings, adhesives, and sealants.

CAS Number: 13641-96-8
Molecular Formula: C6H7NO3
Molecular Weight: 141.12
EINECS Number: 482-140-6

Synonyms: 2-isocyanatoethyl acrylate, 2-isocyanatoethyl prop-2-enoate, 2-Propenoic acid, 2-isocyanatoethyl ester, 2-Isocyanatoethylacrylate, 2-Isocyanatoethyl 2-propenoate, DTXSID2075184, DTXCID9034367, 482-140-6, 688-012-8, 13641-96-8, acryloyloxyethyl isocyanate, 2-acryloyloxyethyl isocyanate, 2-Isocyanatoethyl Acrylate (stabilized with BHT), 117229-85-3, 2-PROPENOIC ACID 2-ISOCYANATOETHYL ESTER, Acrylic Acid 2-Isocyanatoethyl Ester, 2-acryloyloxyethylisocyanate, SCHEMBL124929, 2-(acryloyloxy)ethyl isocyanate, NAA64196, MFCD11112219, AKOS006307967, BS-25359, DB-116841, I0918, NS000, 2-IsocyanatoethylAcrylate;2-Propenoic acid 2-isocyanatoethyl ester;2-isocyanatoethyl prop-2-enoate;2-Isocyanatoethyl Acrylate (stabilized with BHT);2-IsocyatoethylAcrylate;AOI-VM;2-IsocyanatoethylAcrylate(stabilizedwithBHT)>;2-(Acryloyloxy)ethyl Isocyanate

Isocyanate acrylate refers to a hybrid molecule that contains both an isocyanate group (–N=C=O) and an acrylate group (–CH=CHCOOR), which gives it a unique dual-reactivity that can undergo both radical polymerization (typical for acrylates) and nucleophilic addition reactions (common for isocyanates). 
These dual-reactive compounds are often used in high-performance urethane-acrylate systems, where the isocyanate groups can react with hydroxyl groups to form strong polyurethane networks, while the acrylate parts enable UV or heat curing through polymerization.
Isocyanate acrylate, belongs to the class of monomers known as isocyanate monomers. 

The presence of the isocyanate functional group in 2-Isocyanatoethyl methacrylate makes it highly reactive. 
This reactivity allows it to undergo polymerization and form cross-linked networks for the development of polymers with improved mechanical strength, chemical resistance, and adhesion properties. 
Because of these characteristics, isocyanate acrylates are commonly used in the formulation of coatings that require both high flexibility and strong adhesion, as well as in 3D printing resins, automotive paints, and medical adhesives, where precise control over curing time and mechanical properties is essential. 

However, since isocyanates are known for their potential toxicity and respiratory irritation, handling and formulation of isocyanate acrylates require strict safety protocols and proper ventilation.
In modern manufacturing, isocyanate acrylates are widely used in the development of high-gloss, scratch-resistant automotive topcoats, optically clear coatings for electronics and touchscreens, and biocompatible adhesives for medical devices, where performance requirements are extremely high. 
Because of their fast-curing nature, they are also invaluable in high-speed production environments, such as roll-to-roll coating lines, digital printing, and LED-cured varnishes, where curing speed and low energy consumption are essential.

Their ability to be precisely controlled and rapidly solidified under light makes them ideal for applications ranging from dental prosthetics to engineering-grade prototypes.
Isocyanate acrylate groups temporarily deactivated by capping agents—to improve the stability and shelf-life of isocyanate acrylate systems, only reactivating them during the curing phase via heat or catalysts. 
This strategy allows for safer handling and transport while maintaining the reactivity needed during final application.

Melting point: -25 °C
Boiling point: 80-95 °C (Press: 15 Torr)
Density: 1.05
Vapor pressure: 21.4 Pa at 20℃
Refractive index: 1.4470 to 1.4510
Flash point: 97°C (lit.)
Storage temp.: Keep in dark place, Inert atmosphere, 2-8°C
Form: clear liquid
Color: Colorless to Almost colorless
Specific Gravity: 1.10

Isocyanate acrylate is a specialized chemical compound that combines two highly reactive groups—the isocyanate group (–N=C=O) and the acrylate group (derived from acrylic acid)—in a single molecular structure, giving it the ability to participate in both polyurethane chemistry and radical polymerization processes. 
This dual functionality makes it an extremely versatile component in the production of advanced polymer systems, particularly in industries that require materials with both fast curing times and high mechanical strength, such as automotive coatings, electronics encapsulation, and high-performance adhesives.

The isocyanate portion of the molecule is known for its ability to react with compounds containing active hydrogen atoms, such as alcohols or amines, to form urethanes or ureas, which are the basis of tough, durable polymer networks. 
At the same time, the acrylate group can undergo free radical polymerization, especially under UV light or heat, allowing the material to cure quickly and form rigid or flexible plastic structures depending on the formulation.

Due to these properties, isocyanate acrylates are often used in dual-cure systems, where the material is first cured quickly with UV light through the acrylate groups, and then allowed to continue curing via chemical reactions involving the isocyanate groups, leading to a highly cross-linked polymer with superior resistance to chemicals, abrasion, and temperature changes. 
For example, in industrial floor coatings, this dual-cure system allows for fast installation and long-term durability in harsh environments.

In addition to coatings, these compounds are also widely used in 3D printing resins, medical-grade adhesives, electronic potting compounds, and composite materials, where precise control over curing behavior, mechanical properties, and environmental resistance is crucial.
Isocyanate acrylates are extremely useful, they must be handled with care, as isocyanate compounds can be hazardous to human health, especially if inhaled or if they come into contact with skin, potentially causing irritation, sensitization, or even long-term respiratory issues. 

Therefore, when used in industrial or commercial settings, proper safety measures—including personal protective equipment (PPE), adequate ventilation, and proper storage—are essential to minimize health risks.
The structure of an isocyanate acrylate typically includes a urethane backbone that provides flexibility and toughness, along with pendant acrylate groups that serve as sites for polymerization, enabling rapid curing through UV radiation or chemical initiators.
Isocyanate acrylates may be monomers, oligomers, or prepolymers, and the exact ratio and positioning of isocyanate and acrylate groups can be adjusted to fine-tune the final polymer’s properties, such as hardness, elasticity, chemical resistance, and optical clarity.

One of the most significant advantages of isocyanate acrylates lies in their ability to form three-dimensional crosslinked networks during curing. 
When exposed to UV light, the acrylate double bonds rapidly polymerize to form a rigid backbone, while the isocyanate groups simultaneously or subsequently react with polyols, amines, or water, resulting in a densely crosslinked polyurethane network. 
This dual crosslinking mechanism not only improves the mechanical performance of the final product but also enhances its thermal stability and resistance to environmental degradation.

Uses Of Isocyanate acrylate:
Isocyanate acrylate is an important compound intermediate commonly used in chemical research and development as an API for organic synthesis.
Isocyanate acrylates are used in a wide range of high-performance industrial and commercial applications, primarily because of their unique ability to cure quickly through UV or thermal mechanisms while simultaneously forming strong, durable, and chemically resistant polymer networks through crosslinking reactions. 
This makes them particularly valuable in situations where fast processing times, superior mechanical properties, and long-term durability are essential.

One of their most important uses is in the coatings industry, where isocyanate acrylates are key components in UV-curable clear coats and topcoats for surfaces such as wood, metal, plastic, and automotive parts. 
These coatings provide excellent scratch resistance, chemical protection, and weatherability, which are especially important in products exposed to harsh environmental conditions, such as car bodies, outdoor furniture, industrial machinery, and consumer electronics.

In the field of adhesives and sealants, isocyanate acrylates are frequently used in structural bonding applications, where strong, permanent adhesion between materials like glass, metal, and plastic is required. 
For example, they are widely used in the automotive, aerospace, and electronics industries to create flexible yet tough bonds that can withstand vibration, heat, and moisture without degrading over time. 
Their dual-curing nature—combining fast acrylate curing with slower polyurethane formation—enables the development of adhesives that initially set quickly but continue to strengthen over hours or days.

Isocyanate acrylates also play a crucial role in 3D printing and additive manufacturing, especially in stereolithography (SLA) and digital light processing (DLP) technologies, where they are formulated into photopolymer resins. 
These resins solidify rapidly under light exposure, allowing for the production of high-resolution, dimensionally stable, and mechanically robust printed parts, which are used in fields ranging from dental prosthetics and hearing aids to engineering prototypes and custom tools.
Isocyanate acrylates are used in the formulation of transparent coatings and encapsulants for LED displays, smartphones, touchscreens, and solar panels, where clarity, UV resistance, and thermal stability are critical. 

Their ability to form thin, protective films without yellowing or cracking over time makes them ideal for preserving sensitive components and maintaining product appearance and function over years of use.
Another key application is in medical devices and healthcare products, where modified isocyanate acrylates are used in biocompatible adhesives, surgical glues, and dental resins, particularly when rapid curing and strong tissue bonding are required. 
In these cases, the formulations are carefully designed to minimize toxicity and irritation, enabling safe contact with skin or internal tissues.

Isocyanate acrylate-based coatings are used to create seamless, chemical-resistant, and aesthetically pleasing surfaces in environments such as hospitals, food processing plants, laboratories, and warehouses, where durability and hygiene are major priorities. 
Their fast cure times allow for quick installation and minimal downtime, which is highly valued in commercial settings.
In the automotive industry, isocyanate acrylates are extensively used in the formulation of high-performance paints and coatings, particularly in clear coats, base coats, and plastic part coatings. 

Their excellent resistance to UV radiation, abrasion, fuel, and weathering makes them ideal for protecting car exteriors while maintaining a high-gloss, showroom-quality appearance. Because of their fast curing properties—especially when exposed to UV light or elevated temperatures—they enable manufacturers to speed up production lines without compromising long-term durability or finish quality. Additionally, their use extends to automotive adhesives, such as those used for glass bonding and interior panel attachment, where structural strength and vibration resistance are essential.

In the electronics and electrical industry, isocyanate acrylates are used to produce conformal coatings, encapsulants, and potting compounds, which serve to protect delicate components from moisture, dust, chemicals, and thermal cycling. 
For instance, circuit boards and sensors are often coated with thin layers of UV-curable isocyanate acrylate formulations that form robust, insulating barriers while allowing for precision application due to their low viscosity and rapid cure times. 
These formulations can also be engineered to be optically clear, making them suitable for optical components, fiber optics, displays, and light guides.

In wood finishing and furniture manufacturing, isocyanate acrylates are found in UV-curable varnishes, sealers, and topcoats that are applied to cabinets, flooring, and decorative panels. 
These coatings provide superior scratch and stain resistance, while also enhancing the natural appearance of wood. 
Because they cure almost instantly under UV light, they enable high-throughput production with minimal drying or curing time, which is economically and environmentally beneficial in large-scale woodworking operations.

In textile and leather finishing, specially formulated isocyanate acrylates are used to create durable, flexible coatings that provide water resistance, colorfastness, and wear protection.
These coatings help enhance the feel and performance of synthetic and natural fibers in applications ranging from footwear and fashion to automotive interiors and upholstery.

Safety Profile Of Isocyanate acrylate:
One of the most serious hazards associated with isocyanate acrylates comes from their isocyanate component (–N=C=O), which is highly reactive and known to cause a variety of acute and chronic health effects, especially when inhaled or when it comes into contact with the skin or eyes. 
Exposure to isocyanates, particularly in vapor or aerosol form, can lead to respiratory tract irritation, asthma-like symptoms, and in some cases, occupational asthma, which may become permanent and life-altering even after short exposures.

Repeated or prolonged exposure to isocyanate vapors can sensitize the immune system, meaning that future exposure to even very low concentrations can trigger severe respiratory reactions, including difficulty breathing, wheezing, and tightness in the chest. 
Because of this sensitization potential, workers must use strict protective measures, such as wearing respirators, gloves, and protective clothing, and ensuring proper ventilation when using isocyanate-containing products.

The acrylate portion of isocyanate acrylates, while less dangerous than isocyanates, also presents health risks. 
Isocyanate acrylates are known skin irritants and sensitizers, and repeated contact can cause dermatitis or allergic skin reactions, such as redness, itching, and blistering. 
Isocyanate acrylates can also be eye irritants, and direct contact may cause stinging, tearing, or even corneal damage.