Description

Oxirane, 2,2-(1-methylethylidene)bis(4,1-phenyleneoxymethylene)bis-, polymer with 1,3-diisocyanatomethylbenzene and .alpha.-hydro-.omega.-hydroxypoly(oxy-1,4-butanediyl) is a high-performance polyurethane prepolymer or resin intermediate. This specialized chemical is engineered to deliver exceptional durability, flexibility, and chemical resistance in formulated end-products. It is a critical raw material for manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries seeking to enhance product performance.

Application

• High-Performance Coatings: Used as a key component in formulating durable protective coatings for industrial equipment, automotive finishes, and marine applications.
• Advanced Adhesives & Sealants: Serves as a base polymer for structural adhesives and flexible sealants requiring strong bonding and environmental resistance.
• Specialty Elastomers: Employed in the production of polyurethane elastomers for gaskets, rollers, and impact-absorbing components.
• Composite Materials: Acts as a matrix resin or modifier in fiber-reinforced composites for the aerospace and automotive sectors.
• Potting & Encapsulation Compounds: Used in electronics to protect sensitive components from moisture, vibration, and thermal stress.
• Industrial Rollers and Castings: A precursor for manufacturing polyurethane parts that demand a balance of hardness and elasticity.

Basic Information

Product Name	Oxirane, 2,2-(1-methylethylidene)bis(4,1-phenyleneoxymethylene)bis-, polymer with 1,3-diisocyanatomethylbenzene and .alpha.-hydro-.omega.-hydroxypoly(oxy-1,4-butanediyl)
CAS No.	68259-26-7
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Polyurethane prepolymer based on bisphenol A diglycidyl ether and poly(tetramethylene ether) glycol; Epoxy-terminated polyurethane; PU prepolymer resin; Reaction product of bisphenol A diglycidyl ether, poly(tetramethylene ether) glycol, and m-xylylene diisocyanate; XDI-based polyurethane prepolymer; PTMEG-based polyurethane intermediate; Thermosetting polyurethane resin; CAS 68259-26-7
EINECS	Contact for details

Quality Control

Our production of this polyurethane prepolymer adheres to stringent quality management protocols. Every batch is characterized for critical parameters including NCO content, viscosity, epoxy equivalent weight, and moisture content to ensure consistency and performance. Certificates of Analysis (COA) documenting these specifications are provided with each shipment 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 (typically 15-25°C). This material is moisture-sensitive; containers must be kept sealed to prevent reaction with atmospheric humidity. Keep away from heat sources and open flame.

Specification

Item	Specification
Appearance	Viscous liquid
Color (Gardner)	≤ 3
Viscosity @ 25°C	Contact for details
NCO Content	Contact for details
Epoxy Equivalent Weight (EEW)	Contact for details
Moisture Content (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.