Description

Poly[oxy(methyl-1,2-ethanediyl)], .alpha.-(2-aminomethylethyl)-.omega.-(2-aminomethylethoxy)-, polymer with 2-hydroxyethyl acrylate-blocked 1,1'-methylenebis[4-isocyanatocyclohexane]-polypropylene glycol polymer is a specialized, high-performance polyetheramine-based polymer with a blocked isocyanate functionality. This unique chemistry provides a versatile platform for formulating advanced coatings, adhesives, and sealants with enhanced durability and processing characteristics. It is primarily sought after by manufacturers in the automotive, industrial coatings, and composite materials sectors seeking to improve product performance and reliability.

Application

• High-Performance Industrial Coatings: Used as a reactive component in polyurea and polyurethane coatings for exceptional abrasion, chemical, and corrosion resistance.
• Automotive OEM and Refinish Systems: A key ingredient in primers, clear coats, and elastomeric coatings requiring fast cure times and excellent mechanical properties.
• Adhesives and Sealants: Functions as a toughening agent and crosslinker in structural adhesives and flexible sealants for construction and transportation.
• Composite Materials: Employed in resin formulations for fiber-reinforced plastics (FRP) to modify toughness and impact resistance.
• Waterproofing Membranes: Utilized in spray-applied elastomeric membranes for roofing and infrastructure due to its rapid curing and seamless application.
• Pipe and Concrete Coatings: Provides a protective, long-lasting barrier in harsh environmental and immersion service conditions.

Basic Information

Item	Details
Product Name	Poly[oxy(methyl-1,2-ethanediyl)], .alpha.-(2-aminomethylethyl)-.omega.-(2-aminomethylethoxy)-, polymer with 2-hydroxyethyl acrylate-blocked 1,1'-methylenebis[4-isocyanatocyclohexane]-polypropylene glycol polymer
CAS No.	79771-06-5
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Blocked Polyisocyanate Prepolymer; HEA-blocked H12MDI Polyetheramine Adduct; Polyetheramine, polymer with H12MDI blocked with 2-hydroxyethyl acrylate; Polyoxypropylene diamine blocked isocyanate; Amine-terminated polypropylene glycol blocked with cycloaliphatic isocyanate; Reactive polyetheramine adduct; CAS 79771-06-5
EINECS	Contact for details

Quality Control

Every batch of our polyetheramine-blocked isocyanate polymer is manufactured under a strict quality management system. We perform comprehensive analytical testing, including determination of amine value, isocyanate content (blocked), viscosity, and color, to ensure batch-to-batch consistency and performance. A Certificate of Analysis (COA) documenting all critical specifications is provided with each 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 temperatures between 15°C and 25°C (59°F and 77°F). This product is hygroscopic (moisture-sensitive) and easily oxidized; containers must be kept tightly sealed under a dry, inert atmosphere (e.g., nitrogen) after opening to prevent moisture pickup and degradation. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Clear, viscous liquid
Color (Gardner)	≤ 3
Viscosity @ 25°C	Contact for details
Amine Value	Contact for details
Blocked NCO Content	Contact for details
Moisture (Karl Fischer)	≤ 0.1%
Specific Gravity @ 25°C	Contact for details

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