Description

Ethanol, 2,2'-Oxybis-, Polymer With .Alpha.-Hydro-.Omega.-Hydroxypoly(Oxy-1,4-Butanediyl) And 1,1'-Methylenebis[4-Isocyanatocyclohexane] CAS NO 65605-61-0 is a specialized polyurethane prepolymer or polymer derived from diethylene glycol, poly(tetramethylene ether) glycol (PTMEG), and hydrogenated methylene diphenyl diisocyanate (H12MDI). This material matters for its ability to impart excellent hydrolytic stability, low-temperature flexibility, and high mechanical strength to final products. It is primarily needed by formulators in the coatings, adhesives, sealants, and elastomers (CASE) industries seeking high-performance, weatherable, and durable polyurethane systems.

Application

• High-performance polyurethane coatings for automotive, aerospace, and industrial maintenance requiring chemical and abrasion resistance.
• Elastomeric sealants and adhesives with superior flexibility and durability for construction and automotive assembly.
• Cast or thermoplastic polyurethane elastomers (TPU) for components like gaskets, wheels, and hoses.
• Fiber and fabric coatings to provide water resistance, breathability, and enhanced durability.
• Specialty resin modifiers to improve the toughness and impact resistance of other polymer systems.
• Potting and encapsulation compounds for protecting sensitive electronic components from moisture and mechanical stress.

Basic Information

Product Name	Ethanol, 2,2'-Oxybis-, Polymer With .Alpha.-Hydro-.Omega.-Hydroxypoly(Oxy-1,4-Butanediyl) And 1,1'-Methylenebis[4-Isocyanatocyclohexane]
CAS No.	65605-61-0
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Polyurethane prepolymer based on H12MDI, PTMEG, and DEG; H12MDI/PTMEG prepolymer; Hydrogenated MDI polyether prepolymer; Poly(tetramethylene ether) glycol, polymer with diethylene glycol and 4,4'-methylenebis(cyclohexyl isocyanate); Aliphatic polyether urethane prepolymer; PTMEG-H12MDI prepolymer; CAS 65605-61-0
EINECS	Contact for details

Quality Control

Our production of this polyurethane polymer adheres to strict quality management systems. Every batch is characterized for critical parameters including NCO content, viscosity, and moisture content to ensure consistency and performance. Certificates of Analysis (COA) detailing 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). Due to its hygroscopic (moisture-sensitive) nature, containers must be kept sealed under a dry atmosphere (e.g., under nitrogen) to prevent moisture absorption and premature reaction. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid
NCO Content	Contact for details
Viscosity (25°C)	Contact for details
Moisture Content	≤ 0.05%
Specific Gravity (25°C)	Contact for details
Color (Gardner)	≤ 2

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