Description

1,2-Propanediol, Polymer With 1-Isocyanato-2-(4-Isocyanatophenyl)Methylbenzene, 1,1-Methylenebis4-Isocyanatobenzene, Methyloxirane And Oxirane is a specialized polyurethane prepolymer or polyol derivative, synthesized from a complex mixture of isocyanates and epoxides. This engineered polymer is valued for its ability to impart enhanced flexibility, adhesion, and chemical resistance to final formulations. It is primarily utilized by industrial manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) sectors, as well as in advanced composite materials, where precise polymer properties are critical.

Application

• High-Performance Coatings: Used as a key resin component in protective and decorative coatings for automotive, industrial, and marine applications, offering durability and weather resistance.
• Adhesives & Sealants: Serves as a polyol backbone in formulating polyurethane-based adhesives and sealants with strong bonding strength and elasticity.
• Elastomer Production: Acts as an intermediate in the manufacture of castable or thermoplastic polyurethane elastomers for gaskets, wheels, and industrial parts.
• Composite Materials: Employed in the production of fiber-reinforced plastics and composites, enhancing matrix toughness and interfacial adhesion.
• Potting & Encapsulation Compounds: Used in electrical and electronic applications to protect components, providing excellent insulation and environmental sealing.
• Binder Systems: Functions as a reactive binder in foundry sands, abrasives, or non-woven fabrics, improving cohesion and performance.

Basic Information

Product Name	1,2-Propanediol, Polymer With 1-Isocyanato-2-(4-Isocyanatophenyl)Methylbenzene, 1,1-Methylenebis4-Isocyanatobenzene, Methyloxirane And Oxirane
CAS No.	72088-97-2
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Poly(propylene glycol) tolylene diisocyanate urethane prepolymer; PPG-TDI prepolymer; Propylene glycol-TDI-MDI-epoxy copolymer; Polyurethane polyol based on TDI, MDI, and propylene oxide; Isocyanate-terminated poly(propylene oxide) polyol; Urethane-modified polyether polyol; CAS 72088-97-2 polymer; TDI/MDI/Epoxy copolymer with 1,2-propanediol
EINECS	Contact for details

Quality Control

Our production of this polymer adheres to strict quality management systems. Each batch is characterized for critical parameters such as isocyanate (NCO) content, hydroxyl value, viscosity, and residual monomer levels to ensure batch-to-batch consistency and performance reliability. Certificates of Analysis (COA) documenting these specifications are available upon request, supporting your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. This material is hygroscopic (moisture-sensitive) and must be stored in a cool, dry place at room temperature (15-25°C/59-77°F). Ensure containers are kept tightly sealed under a dry inert atmosphere (e.g., nitrogen) to prevent moisture absorption and premature reaction. Store away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Viscous liquid
Color (Gardner)	≤ 3
Isocyanate (NCO) Content	Contact for details
Hydroxyl Value (mg KOH/g)	Contact for details
Viscosity @ 25°C (cPs)	Contact for details
Water Content (Karl Fischer)	≤ 0.1%
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.