CAS 15419-94-0 In-depth Analysis: Reactive UV-Absorbing Monomer Empowers the Upgrading of UV-Curable New-Material Industry

In high-end new-material sectors such as UV-curable coatings, photoresists and optical films, material weathering and ageing resistance have long been key pain points restricting product service life and quality. Conventional small-molecule UV CAS 15419-94-0 In-depth Analysis: Reactive UV-Absorbing Monomer Empowers the Upgrading of UV-Curable New-Material Industry

absorbers commonly suffer from migration, blooming, poor solvent resistance and easy loss. Their protective performance declines rapidly under prolonged light exposure, failing to meet stringent requirements of high-end manufacturing. CAS 15419-94-0, 2-Hydroxy-4-acryloxybenzophenone (BP-1A) is a benzophenone-based reactive UV-absorbing monomer. Equipped with polymerizable acryloyl active groups, it can be chemically bonded into resin skeletons, fundamentally eliminating migration drawbacks of small-molecule additives. In recent years, it has become a popular core raw material for UV-curing system anti-UV modification, enabling downstream manufacturers to achieve leap-forward improvement in weather resistance.

With molecular formula C₁₆H₁₂O₄ and molecular weight 268.26, CAS 15419-94-0 retains classic benzophenone chromophore groups on one molecular end, which efficiently absorb ultraviolet light within 280-360 nm and block polymer-chain photodegradation triggered by UV radiation. An acryloyloxy double bond is introduced at the other end. Under UV-initiated free-radical polymerization conditions, it participates in copolymerization and is firmly anchored inside polymer networks via covalent bonds. It will not migrate, precipitate or bloom under solvent immersion, friction or high-temperature conditions. Unlike ordinary additive-type UV absorbers, it fundamentally solves yellowing, surface hazing and protection failure caused by additive loss.

In terms of physicochemical properties, this product features outstanding thermal stability, low volatilization loss during thermal processing, and compatibility with various processes including UV-curing coating and resin polymerization. It exhibits excellent miscibility with acrylate monomers, oligomers and epoxy systems, and maintains good transparency after compounding without causing turbidity or loss of gloss in coatings and films. It can be used individually as a functional monomer for copolymerization, or compounded synergistically with other light stabilizers to further boost comprehensive anti-ageing and weather-resistant performance.

In practical industrial applications, CAS 15419-94-0 covers multiple high-value-added fields. For UV-curable coatings and inks, it is applied in wood UV varnishes, plastic UV topcoats and printing overprint varnishes to enhance outdoor lightfastness, and inhibit coating cracking, chalking and yellowing for long-term surface appearance retention. In manufacturing optical films and protective films, it is adopted in coating layers of PET and PC functional films to endow films with long-term UV-shielding capacity, protect substrates and attached components, and retard film brittleness and ageing. In photoresists and photo-resistant materials, it serves as a modifying functional monomer to tune UV-absorbing behaviours and optimize imaging and environmental tolerance. Besides, it is also applicable to UV-curable adhesives, synthetic resins and composite-material surface modification to extend service life of end-products used outdoors.

Its most prominent advantage over traditional non-reactive benzophenone UV absorbers lies in polymer-bonded property and zero migration. Ordinary UV absorbers are merely physically blended into resins. They tend to migrate toward product surfaces over time, resulting in sticky surfaces and white precipitates. Anti-UV capacity drops sharply once additives leach out. By contrast, 15419-94-0 integrates into polymer chains through double-bond polymerization. UV-absorbing moieties never detach from matrices even after solvent wiping, humid-heat ageing and long-time sunlight exposure. Protective effects persist steadily, product service life is greatly prolonged, and later-stage replacement and maintenance costs are reduced. It is highly suitable for high-end export-oriented products with strict limits on precipitation and blooming.

For practical formulation operations, dosage ranges from 0.5-3 % according to target weather-resistance grades. It can be directly mixed and dissolved with UV-curing monomers and oligomers without special co-solvents. Formulation debugging is required when matched with photoinitiators to avoid interference on curing speed. For storage, keep containers tightly closed in cool and dark conditions, away from heat sources and oxidants to prevent premature monomer auto-polymerization. General fine-chemical safety precautions shall be followed during handling.

With rapid expansion of domestic UV-curing industries, downstream requirements for weather resistance, low-migration and high-durability materials keep rising. Replacing conventional small-molecule additives with reactive functional monomers has become an explicit industry trend. Benefiting from unique molecular-design merits, CAS 15419-94-0 perfectly meets upgrading demands of coatings, optical films and electronic materials. As an indispensable key chemical raw material for anti-UV modification, it supports domestic new-material enterprises to develop high-weather-resistant domestic products, facilitates import substitution and fuels high-quality development across the whole UV-curing industrial chain.