Description

Hexanedioic acid, polymer with 1,3-isobenzofurandione, 5-isocyanato-1-(isocyanatomethyl)-1,3,3-trimethylcyclohexane and oxybis[propanol], 2-hydroxyethyl acrylate-blocked is a specialized, blocked polyurethane prepolymer designed for advanced coating and adhesive formulations. This compound matters for its ability to provide excellent chemical resistance, durability, and controlled reactivity upon thermal curing. It is primarily needed by manufacturers in the industrial coatings, automotive refinish, and high-performance adhesive sectors seeking to enhance product longevity and performance.

Application

• High-Performance Industrial Coatings: Used as a crosslinking agent in formulations requiring superior chemical, abrasion, and corrosion resistance.
• Automotive Refinish and OEM Coatings: Provides excellent flow, leveling, and durability in clearcoats and pigmented systems.
• Heavy-Duty Protective Coatings: For infrastructure, marine, and oil & gas applications where extreme environmental protection is critical.
• Thermally-Curable Adhesives and Sealants: Imparts strong adhesion and flexibility in one-component systems that cure upon heating.
• Plastic and Composite Coatings: Enhances adhesion to difficult substrates and improves surface hardness and mar resistance.
• Wire and Cable Enamels: Used in insulating varnishes that require thermal stability and electrical properties.

Basic Information

Product Name	Hexanedioic acid, polymer with 1,3-isobenzofurandione, 5-isocyanato-1-(isocyanatomethyl)-1,3,3-trimethylcyclohexane and oxybis[propanol], 2-hydroxyethyl acrylate-blocked
CAS No.	129870-85-5
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Blocked Polyurethane Prepolymer; HEA-blocked PU prepolymer; Adipic acid/IPDI/HEA polymer; Polyurethane, hexanedioic acid, 1,3-isobenzofurandione, 5-isocyanato-1-(isocyanatomethyl)-1,3,3-trimethylcyclohexane, oxybis[propanol] polymer, 2-hydroxyethyl acrylate-blocked; IPDI-based blocked prepolymer; Thermosetting acrylic-urethane resin; 2-Hydroxyethyl acrylate blocked aliphatic polyisocyanate.
EINECS	Contact for details

Quality Control

Our blocked polyurethane prepolymers undergo rigorous quality testing to ensure batch-to-batch consistency and performance in demanding applications. Quality parameters such as blocked isocyanate content, viscosity, solids content, and color are strictly monitored. Certificates of Analysis (COA) documenting these specifications are available upon request 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). This product is hygroscopic (moisture-sensitive); ensure containers are sealed immediately after use to prevent exposure to atmospheric moisture, which can lead to premature reaction and gelation.

Specification

Item	Specification
Appearance	Clear, viscous liquid
Color (Gardner)	≤ 3
Solids Content	70 - 75 %
Viscosity (25°C)	2000 - 5000 mPa·s
Blocked NCO Content	Contact for details
Acid Value	≤ 2.0 mg KOH/g

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