Description

Propanol,Oxybis,Polymer With .Alpha.-Hydro-.Omega.-Hydroxypoly [Oxy(Methyl-1,2-Ethanediyl)] And 1,1-Methylenebis(4-Isocyanatobenzene) CAS NO 74243-11-1 is a specialized polyurethane prepolymer or polyol-isocyanate adduct, engineered for high-performance applications. This compound is valued for its role as a reactive intermediate, providing enhanced mechanical properties, chemical resistance, and adhesion in formulated systems. It is essential for manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries seeking to develop durable and resilient polymeric materials.

Application

• High-Performance Coatings and Paints: Used as a key resin component in industrial, marine, and protective coatings for superior durability, gloss, and chemical resistance.
• Adhesives and Sealants: Serves as a backbone polymer in formulating structural adhesives, potting compounds, and flexible or rigid sealants with excellent bonding strength.
• Elastomers and Castable Urethanes: A critical raw material for producing polyurethane elastomers, rollers, gaskets, and impact-absorbing components.
• Composite Materials: Acts as a matrix resin or compatibilizer in fiber-reinforced plastics (FRP) and other composite systems to enhance interfacial adhesion.
• Waterproofing and Construction Chemicals: Incorporated into membranes, grouts, and coatings for infrastructure, providing long-lasting waterproofing and protective barriers.
• Automotive and Aerospace Components: Utilized in under-the-hood parts, interior trim, and composite panels where high strength-to-weight ratio and environmental stability are required.

Basic Information

Product Name	Propanol,Oxybis,Polymer With .Alpha.-Hydro-.Omega.-Hydroxypoly [Oxy(Methyl-1,2-Ethanediyl)] And 1,1-Methylenebis(4-Isocyanatobenzene)
CAS No.	74243-11-1
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Polyurethane prepolymer based on polyoxypropylene glycol and MDI; Polyoxypropylene glycol, polymer with oxybispropanol and methylenebis(4-isocyanatobenzene); PPG-MDI prepolymer; Polypropylene glycol-MDI adduct; Oxybispropanol polymer with polyoxy(methyl-1,2-ethanediyl) and MDI; 1,1'-Methylenebis(4-isocyanatobenzene), polymer with .alpha.-hydro-.omega.-hydroxypoly[oxy(methyl-1,2-ethanediyl)] and oxybispropanol; Polyether polyurethane prepolymer; MDI-terminated polyoxypropylene polyol
EINECS	Contact for details

Quality Control

Our production of this polyurethane prepolymer adheres to rigorous quality testing protocols to ensure batch-to-batch consistency and performance. Key parameters such as isocyanate (NCO) content, viscosity, and hydroxyl value are strictly monitored. Certificates of Analysis (COA) detailing these specifications are available upon request, supporting compliance with relevant industry standards for polymer intermediates.

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) and must be protected from atmospheric moisture to prevent premature reaction and degradation. Keep away from heat, sparks, and open flame.

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
Specific Gravity (25°C)	Contact for details
Moisture Content	< 0.05%

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