Description

Hexanedioic Acid, Polymer With 1,2-Ethanediol And 1,1'-Methylenebis[4-Isocyanatobenzene], Isocyanate-Terminated is a specialized polyurethane prepolymer designed for high-performance applications. This compound is valued for its excellent mechanical properties, chemical resistance, and versatility as a reactive intermediate. It is primarily utilized by manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries seeking to enhance product durability and performance.

Application

• As a key reactive component in the formulation of high-strength, two-component polyurethane coatings and paints.
• In the manufacture of industrial-grade adhesives and sealants requiring superior bonding strength and flexibility.
• For producing cast or molded polyurethane elastomers with enhanced abrasion and chemical resistance.
• As a modifier or cross-linking agent in specialty polymer composites and resin systems.
• In the production of waterproofing membranes and construction chemicals.
• For formulating potting and encapsulation compounds in the electronics industry.

Basic Information

Product Name	Hexanedioic Acid, Polymer With 1,2-Ethanediol And 1,1'-Methylenebis[4-Isocyanatobenzene], Isocyanate-Terminated
CAS No.	68441-99-6
Molecular Formula	(C15H10N2O2·C6H10O4·C2H6O2)x
Molecular Weight	Polymer - Variable
Synonyms	Polyurethane prepolymer, MDI-based prepolymer; Poly(hexanedioic acid-co-1,2-ethanediol), polymer with 1,1'-methylenebis[4-isocyanatobenzene], isocyanate-terminated; Adipic acid-ethylene glycol-MDI prepolymer; Isocyanate-terminated polyester urethane; PU prepolymer; 4,4'-Methylenediphenyl diisocyanate (MDI) polyester prepolymer; Reactive polyurethane intermediate
EINECS	Contact for details

Quality Control

Our production of this polyurethane prepolymer adheres to strict quality management systems to ensure batch-to-batch consistency and performance reliability. Key parameters such as isocyanate (NCO) content, viscosity, and moisture levels are rigorously monitored. A Certificate of Analysis (COA) detailing all relevant specifications is provided with every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. This product is hygroscopic (moisture-sensitive) and must be stored under a dry, inert atmosphere (e.g., nitrogen blanket) to prevent premature reaction and gelation. Recommended storage temperature is between 15°C and 25°C in a cool, dry, and well-ventilated area away from heat, sparks, and open flame. Keep container tightly sealed when not in use.

Specification

Item	Specification
Appearance	Viscous liquid
Color (Gardner)	≤ 3
NCO Content	Contact for details
Viscosity @ 25°C	Contact for details
Moisture (Karl Fischer)	≤ 0.05%
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.