Description

Ethanol, 2,2-Oxybis-, Polymer With 1,3-Diisocyanatomethylbenzene And .Alpha.-Hydro-.Omega.-Hydroxypoly(Oxy-1,4-Butanediyl) is a specialized polyurethane prepolymer or block copolymer, identified by CAS number 65605-50-7. This advanced material is engineered to deliver exceptional performance characteristics such as tailored elasticity, adhesion, and chemical resistance. It is a critical raw material for formulators and manufacturers in the adhesives, sealants, coatings, and elastomers industries seeking to enhance product durability and functionality.

Application

• High-Performance Adhesives & Sealants: Used as a key binder in formulations requiring strong, flexible bonds and long-term durability for construction, automotive, and aerospace applications.
• Protective & Decorative Coatings: Serves as a resin component in industrial and specialty coatings, providing excellent abrasion resistance, weatherability, and adhesion to various substrates.
• Elastomers and Castable Urethanes: A fundamental building block for manufacturing flexible and resilient polyurethane parts, gaskets, rollers, and impact-absorbing components.
• Composite Materials: Acts as a matrix resin or modifier in composite systems to improve interlaminar toughness and mechanical properties.
• Textile & Leather Finishing: Employed in coatings and finishes to impart water resistance, flexibility, and a durable surface finish.
• Encapsulants and Potting Compounds: Used in electronics and electrical applications to protect sensitive components from moisture, vibration, and environmental stress.

Basic Information

Product Name	Ethanol, 2,2-Oxybis-, Polymer With 1,3-Diisocyanatomethylbenzene And .Alpha.-Hydro-.Omega.-Hydroxypoly(Oxy-1,4-Butanediyl)
CAS No.	65605-50-7
Molecular Formula	Contact for details
Molecular Weight	Variable (Polymer)
Synonyms	Poly(oxy-1,4-butanediyl), α-hydro-ω-hydroxy-, polymer with 2,2'-oxybis[ethanol] and 1,3-diisocyanatomethylbenzene; Poly(tetramethylene ether glycol), polymer with 2,2'-oxybis[ethanol] and 1,3-diisocyanatomethylbenzene; PTMEG-based polyurethane prepolymer; Polyurethane prepolymer based on PTMEG, diethylene glycol, and m-TMXDI; Block copolymer of PTMEG, diethylene glycol, and m-xylylene diisocyanate; m-Xylylene diisocyanate/PTMEG/Diethylene glycol copolymer; Urethane polymer of m-TMXDI, PTMEG, and DEG.
EINECS	Contact for details

Quality Control

Our production of this polyurethane polymer adheres to strict quality management systems. Each batch is characterized for critical parameters including NCO content, viscosity, hydroxyl value, and moisture content to ensure consistent performance in downstream formulations. Certificates of Analysis (COA) documenting these specifications are provided with every shipment to guarantee traceability and compliance with your technical requirements.

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). To prevent moisture absorption and premature reaction, containers must be kept tightly sealed when not in use. Under these conditions, the product is typically stable for 12 months from the date of manufacture.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid
Identification (IR)	Conforms to structure
NCO Content	Contact for details
Viscosity @ 25°C	Contact for details
Hydroxyl Value	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.