Description

Propanol, [(1-Methyl-1,2-Ethanediyl)Bis (Oxy)]Bis-, Polymer With 1-Isocyanato-2-[(4-Isocyanatophenyl)Methyl]Benzene And 1,1'-Methylenebis[4-Isocyanatobenzene] is a specialized polyurethane prepolymer or polyol derivative, identified by CAS No. 75880-28-3. This compound is engineered to deliver enhanced reactivity and tailored physical properties for high-performance polymer formulations. It is primarily required by manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries seeking to modify flexibility, adhesion, and chemical resistance in their end products.

Application

• High-Performance Polyurethane Coatings: Used as a key resin component in protective coatings for industrial, automotive, and marine applications requiring durability and chemical resistance.
• Specialty Adhesives and Sealants: Serves as a building block in formulating adhesives with strong bonding strength and flexibility for construction and assembly.
• Elastomer Production: Employed in the synthesis of castable and thermoplastic polyurethane elastomers for gaskets, wheels, and industrial parts.
• Composite Materials: Acts as a modifier or crosslinker in polymer composites to enhance impact resistance and mechanical properties.
• Fiber and Textile Finishing: Utilized in coatings and treatments to impart water repellency, softness, or durability to technical textiles.
• Encapsulation and Potting Compounds: A component in formulations designed to protect sensitive electronic components from moisture and environmental stress.

Basic Information

Item	Details
Product Name	Propanol, [(1-Methyl-1,2-Ethanediyl)Bis (Oxy)]Bis-, Polymer With 1-Isocyanato-2-[(4-Isocyanatophenyl)Methyl]Benzene And 1,1'-Methylenebis[4-Isocyanatobenzene]
CAS No.	75880-28-3
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Poly(oxy-1,2-ethanediyl), α,α'-[(1-methylethylidene)di-4,1-phenylene]bis[ω-hydroxy-, polymer with 1,1'-methylenebis[4-isocyanatobenzene] and 1-isocyanato-2-[(4-isocyanatophenyl)methyl]benzene; Polyurethane prepolymer based on MDI, TDI, and polypropylene glycol; MDI/TDI/PPG copolymer; Aromatic polyurethane polyol; Isocyanate-terminated polyether prepolymer; Polyether polyurethane resin; PPG-based urethane polymer.
EINECS	Contact for details

Quality Control

Our production of this polyurethane component adheres to strict quality management systems. Every batch undergoes comprehensive analytical testing to ensure consistency in parameters such as NCO content, hydroxyl value, viscosity, and moisture content. Certificates of Analysis (COA) detailing these specifications are provided and available upon request to support your quality assurance and regulatory 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). This material is hygroscopic (moisture-sensitive); ensure containers are sealed immediately after use to prevent degradation from atmospheric moisture. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Viscous liquid
Color (Gardner)	≤ 3
Hydroxyl Value (mg KOH/g)	Contact for details
Viscosity @ 25°C (cPs)	Contact for details
Moisture Content (Karl Fischer)	≤ 0.05%
Specific Gravity @ 25°C	Contact for details
Isocyanate (NCO) Content	Contact for details

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