Description

Poly[Oxy(Methyl-1,2-Ethanediyl)], .Alpha.-Hydro-.Omega.-Hydroxy-, Polymer With 1,3-Diisocyanatomethylbenzene And 1,1'-Methylenebis[4-Isocyanatobenzene] is a specialized polyurethane prepolymer or adhesive resin formed from a polyether polyol and a blend of aromatic diisocyanates. This compound is engineered to deliver high-performance bonding, flexibility, and chemical resistance in demanding industrial applications. It is primarily required by manufacturers in the adhesives, sealants, coatings, and elastomers industries seeking robust polymeric materials for composite assembly and protective layers.

Application

• High-performance industrial adhesives and sealants for automotive, aerospace, and construction.
• Binder and matrix resin in composite materials and laminates.
• Protective and functional coatings for metals, plastics, and textiles.
• Elastomer and rubber product formulation, including gaskets, rollers, and molded parts.
• Potting and encapsulating compounds for electronic components.
• Footwear and specialty foam production.

Basic Information

Item	Details
Product Name	Poly[Oxy(Methyl-1,2-Ethanediyl)], .Alpha.-Hydro-.Omega.-Hydroxy-, Polymer With 1,3-Diisocyanatomethylbenzene And 1,1'-Methylenebis[4-Isocyanatobenzene]
CAS No.	37238-30-5
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Polyurethane prepolymer based on polypropylene glycol, toluene diisocyanate (TDI), and methylene diphenyl diisocyanate (MDI); Polyether polyol-TDI/MDI copolymer; Aromatic polyurethane resin; Adhesive resin CAS 37238-30-5; Urethane polymer with polyoxypropylene and diisocyanates; Reactive polyurethane hot-melt adhesive base; Isocyanate-terminated polyether prepolymer
EINECS	Contact for details

Quality Control

Our production of this polyurethane polymer adheres to strict quality management systems. Every batch is tested for critical parameters including isocyanate (NCO) content, viscosity, and moisture to ensure consistency and performance. A Certificate of Analysis (COA) detailing these specifications is provided with each shipment to guarantee 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 material is hygroscopic (moisture-sensitive); containers must be kept sealed to prevent exposure to atmospheric moisture, which can degrade product performance.

Specification

Item	Specification
Appearance	Viscous liquid
Color	Colorless to pale yellow
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.