Description

Propanol, [(1-methyl-1,2-ethanediyl)bis(oxy)]bis-, polymer with .alpha.-hydro-.omega.-hydroxypoly[oxy(methyl-1,2-ethanediyl)], 1,1'-methylenebis[isocyanatobenzene] and oxybis[propanol] is a specialized polyurethane prepolymer or polyol-isocyanate adduct, identified by CAS NO 68345-16-4. This engineered polymer is valued for its role as a key reactive intermediate, providing tailored properties such as flexibility, adhesion, and chemical resistance to final formulations. It is essential for manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries seeking to develop high-performance polyurethane products.

Application

• High-Performance Polyurethane Coatings: Used as a building block for durable industrial, protective, and decorative coatings.
• Adhesives and Sealants: Serves as a core component in formulating strong, flexible, and weather-resistant adhesives and sealants.
• Elastomer Production: A critical intermediate for manufacturing cast, molded, or thermoplastic polyurethane elastomers.
• Binder Systems: Employed in composite materials and foundry binders to enhance strength and thermal properties.
• Flexible Foams: Can be utilized in the production of specialized flexible polyurethane foams requiring specific resilience.
• Resin Modification: Acts as a modifier for other polymer systems to improve impact resistance, weatherability, and adhesion.

Basic Information

Product Name	Propanol, [(1-methyl-1,2-ethanediyl)bis(oxy)]bis-, polymer with .alpha.-hydro-.omega.-hydroxypoly[oxy(methyl-1,2-ethanediyl)], 1,1'-methylenebis[isocyanatobenzene] and oxybis[propanol]
CAS No.	68345-16-4
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Polyurethane prepolymer based on MDI and polyoxypropylene glycol; Polyoxypropylene glycol, polymer with oxybis[propanol] and methylenebis(phenyl isocyanate); MDI-based polyether polyurethane prepolymer; Polyether polyol-MDI adduct; 4,4'-Methylenebis(phenyl isocyanate), polymer with oxybis[propanol] and .alpha.-hydro-.omega.-hydroxypoly[oxy(methyl-1,2-ethanediyl)]; Polypropylene glycol-MDI copolymer; Isocyanate-terminated polyether prepolymer
EINECS	Contact for details

Quality Control

Our production of this polyurethane intermediate adheres to strict quality management systems. Each batch is characterized for critical parameters including isocyanate (NCO) content, viscosity, hydroxyl value, and moisture content to ensure consistency and performance in downstream reactions. Certificates of Analysis (COA) detailing these specifications are available upon request to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed, moisture-proof container, protected from light. Store in a cool, dry, and well-ventilated area. Recommended storage temperature is between 15°C and 25°C. Keep away from heat, open flames, and sources of ignition. Due to its reactive isocyanate groups, protect from atmospheric moisture to prevent polymerization and viscosity increase.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid
Identification (IR)	Conforms
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.