Description

Hexanedioic Acid, Polymer With 1,3-Diisocyanatomethylbenzene And 2,2-Dimethyl-1,3-Propanediol, 2-Hydroxyethyl Acrylate-Blocked is a specialized, high-performance blocked polyurethane prepolymer designed for advanced coating and adhesive formulations. This compound provides a unique combination of chemical resistance, durability, and controlled reactivity, making it a critical component for demanding industrial applications. It is primarily sought by manufacturers in the automotive, industrial maintenance coatings, and high-performance adhesives sectors who require reliable, high-quality raw materials for their production processes.

Application

• High-Performance Industrial Coatings: Used as a crosslinking agent in one-component (1K) polyurethane coatings for metal substrates, providing excellent chemical and abrasion resistance.
• Automotive OEM and Refinish Paints: A key component in primer, basecoat, and clearcoat systems requiring superior durability, gloss retention, and weatherability.
• Plastic Coatings: Formulated into coatings for automotive interior parts, consumer electronics, and other plastic components needing enhanced adhesion and surface hardness.
• Adhesives and Sealants: Serves as a reactive prepolymer in structural and elastic adhesives, offering strong bonding and flexibility upon thermal curing.
• Coil and Can Coatings: Utilized in coatings for pre-finished metal (coil) and food/beverage containers, where film integrity and resistance are paramount.
• Wood Finishes: Incorporated into high-end furniture and flooring finishes to achieve a tough, scratch-resistant, and chemically durable surface.

Basic Information

Product Name	Hexanedioic Acid, Polymer With 1,3-Diisocyanatomethylbenzene And 2,2-Dimethyl-1,3-Propanediol, 2-Hydroxyethyl Acrylate-Blocked
CAS No.	82339-13-7
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Blocked Polyurethane Prepolymer; HDI-based Blocked Prepolymer; Adipic Acid/HDI/Neopentyl Glycol/HEA Blocked Polymer; 2-Hydroxyethyl Acrylate Blocked Aliphatic Polyisocyanate; Aliphatic Blocked Polyisocyanate Resin; Thermosetting Urethane Acrylate Oligomer; Urethane Acrylate Blocked with HEA; CAS 82339-13-7
EINECS	Contact for details

Quality Control

Our production of this blocked polyurethane prepolymer adheres to strict quality management protocols to ensure batch-to-batch consistency and performance reliability. Key parameters such as blocking agent content, free isocyanate (NCO) level, viscosity, and color are rigorously monitored. A comprehensive Certificate of Analysis (COA) detailing all relevant specifications is provided with each shipment to support your quality assurance and regulatory compliance needs.

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 / 59-77°F). This product is hygroscopic (moisture-sensitive); containers must be kept tightly sealed when not in use to prevent moisture absorption, which can affect product performance. Keep away from heat sources and open flame.

Specification

Item	Specification
Appearance	Clear, viscous liquid
Color (Gardner)	≤ 3
Viscosity (at 25°C)	Contact for details
Non-Volatile Content	Contact for details
Free NCO Content	< 0.5%
Blocking Agent Content	Contact for details
Specific Gravity (25°C)	Contact for details
Flash Point	> 100°C

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