Description

1-Propanone, 2-Hydroxy-2-Methyl-1-4-(1-Methylethenyl)Phenyl-, Homopolymer, Mixt. With 2-Hydroxy-2-Methyl-1-Phenyl-1-Propanone CAS NO 149260-52-6 is a specialized photoinitiator blend designed for high-performance UV-curable systems. This product is critical for achieving rapid and efficient polymerization under UV light, ensuring excellent surface cure and deep-section hardening. It is essential for manufacturers in the coatings, inks, and adhesives industries who require reliable, high-speed curing for their production processes.

Application

• UV-Curable Coatings: Used in clear coats, wood finishes, and industrial metal coatings for fast curing and high gloss.
• Printing Inks: A key component in flexographic, screen, and offset inks for instant drying and superior print quality.
• Adhesives & Sealants: Enables rapid bonding in pressure-sensitive adhesives (PSA) and laminating adhesives.
• Electronics: Employed in solder masks, conformal coatings, and photoresists for printed circuit boards (PCBs).
• 3D Printing/Additive Manufacturing: Facilitates the photopolymerization process in vat polymerization (SLA/DLP) 3D printing resins.
• Graphic Arts: Used in overprint varnishes and other graphic arts applications requiring a durable, cured film.

Basic Information

Product Name	1-Propanone, 2-Hydroxy-2-Methyl-1-4-(1-Methylethenyl)Phenyl-, Homopolymer, Mixt. With 2-Hydroxy-2-Methyl-1-Phenyl-1-Propanone
CAS No.	149260-52-6
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Polymeric Photoinitiator; Oligomeric α-Hydroxy Ketone; 2-Hydroxy-2-methyl-1-[4-(1-methylvinyl)phenyl]propan-1-one homopolymer mixture with 2-hydroxy-2-methyl-1-phenylpropan-1-one; Oligomeric HMPP; UV Photoinitiator Blend; Oligo [2-hydroxy-2-methyl-1-[4-(1-methylvinyl)phenyl]propanone]; Photoinitiator 149260-52-6; Oligomeric α-Hydroxy Ketone Photoinitiator
EINECS	Contact for details

Quality Control

Our photoinitiator blends are manufactured under strict quality management systems to ensure batch-to-batch consistency and performance reliability. Quality is verified through comprehensive analytical testing, including chromatographic purity and functional performance in standard formulations. Certificates of Analysis (COA) detailing assay, residual monomer content, and other critical parameters are available for every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from strong acids and organic solvents. The product is light-sensitive and should be stored away from direct light exposure.

Specification

Item	Specification
Appearance	Light yellow to yellow viscous liquid
Identification (IR)	Conforms
Assay (HPLC)	≥ 95.0%
Viscosity (25°C)	Contact for details
Residual Monomer	≤ 1.0%
Water Content (KF)	≤ 0.5%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.