Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

IGM Omnirad 2959 UV Photoinitiator固体

IGM Omnirad 2959 is a high-efficiency non-yellowing alpha-hydroxy ketone Type I free radical UV photoinitiator in the Omnirad series, designed for UV radiation curing systems. Its core component is 1-[4-(2-hydroxyethoxy)-phenyl]-2-hydroxy-2-methyl-1-propan-1-one. It can efficiently decompose to generate free radicals under UV light, quickly initiating the photopolymerization of unsaturated monomers and prepolymers.

Features Of IGM Omnirad 2959 UV Photoinitiator

  1. High-efficiency initiation performance - Alpha-hydroxy ketone structure, high initiation efficiency, uniform and fast surface and deep curing

  2. Excellent non-yellowing - No yellowing after curing, good light transmittance, suitable for transparent, light-colored and high-appearance requirement systems

  3. Low odor and environmental protection - Low inherent odor, no residual odor after curing, suitable for indoor and sensitive construction scenarios

  4. Dual-system adaptation - Compatible with water-based and solvent-based UV systems, especially suitable for acrylate and unsaturated polyester systems

  5. Outstanding reaction activity - Active hydroxyl group can react with functionalized unsaturated resins, improving formula adaptability and curing performance

Typical Applications Of IGM Omnirad 2959 UV Photoinitiator

  1. Water-based UV coatings - Water-based wood and plastic coatings, environmentally friendly and odorless, uniform color and good weather resistance after curing

  2. Transparent UV varnishes - Transparent varnishes for wood and glass, maintaining high light transmittance, not easy to lose light and discolor after long-term use

  3. UV adhesives - Transparent UV adhesives, optical adhesives, high bonding strength, no yellowing, suitable for precision bonding scenarios

  4. Unsaturated polyester systems - UV curing of unsaturated polyester resins, suitable for composites, coatings and other products

  5. Light-colored UV inks - Light-colored screen and flexo inks, suitable for paper and plastic substrates, full color without yellowing

Specifications Of IGM Omnirad 2959 UV Photoinitiator

AliasPhotoinitiator 2959, 2-Hydroxy-2-methyl-1-[4-
CAS No119313-12-1
Molecular FormulaC<sub>12</sub>H<sub>16</sub>O<sub>4</sub>
Appearance (25°C)White to off-white crystalline powder
Purity≥98.0%
Molecular Weight220.25 g/mol
Melting Point47-50°C


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