Description

Polyoxy(methyl-1,2-ethanediyl), .alpha.,.alpha.,.alpha.-1,2,3-propanetriyltris.omega.-hydroxy-, polymer with 1,3-diisocyanato-2-methylbenzene and 2,4-diisocyanato-1-methylbenzene CAS NO 68479-75-4 is a specialized polyurethane prepolymer or polyol-isocyanate adduct, valued for its reactive functionality and versatility in polymer synthesis. This compound serves as a critical building block for creating high-performance polyurethane materials with tailored properties. It is essential for formulators and manufacturers in industries such as adhesives, sealants, coatings, and elastomers seeking to enhance product durability, flexibility, and chemical resistance.

Application

• Polyurethane Adhesives & Sealants: A key reactive component for formulating high-strength, flexible, and moisture-curing adhesives and sealants used in construction and automotive assembly.
• Coatings & Paints: Used in the synthesis of polyurethane resins for protective and decorative coatings, offering excellent abrasion resistance, gloss, and weatherability.
• Elastomers & Castables: Serves as a prepolymer for manufacturing polyurethane elastomers, wheels, rollers, and gaskets with superior mechanical properties.
• Binder Systems: Employed as a cross-linking agent in composite materials and foundry binders to improve structural integrity and thermal stability.
• Foam Systems: Can be utilized in the production of specialized rigid or flexible polyurethane foams for insulation and cushioning applications.
• Industrial Resin Modification: Acts as a modifier for other polymer systems to enhance toughness, adhesion, and chemical resistance.

Basic Information

Product Name	Polyoxy(methyl-1,2-ethanediyl), .alpha.,.alpha.,.alpha.-1,2,3-propanetriyltris.omega.-hydroxy-, polymer with 1,3-diisocyanato-2-methylbenzene and 2,4-diisocyanato-1-methylbenzene
CAS No.	68479-75-4
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Polyurethane prepolymer based on TDI and trimethylolpropane ethoxylate; TDI-trimethylolpropane ethoxylate adduct; Polyoxyethylene trimethylolpropane TDI polymer; Isocyanate-terminated polyether; Polyether polyol-TDI adduct; Reactive polyurethane intermediate; TDI polyol adduct CAS 68479-75-4
EINECS	Contact for details

Quality Control

Our production of this polyurethane intermediate adheres to strict quality management protocols to ensure batch-to-batch consistency and performance reliability. Key parameters such as isocyanate (NCO) content, viscosity, and hydroxyl value are rigorously monitored. Certificates of Analysis (COA) detailing all relevant specifications are provided with each shipment to support your quality assurance and regulatory compliance 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) and must be kept under a dry, inert atmosphere (e.g., nitrogen blanket) 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
NCO Content	Contact for details
Viscosity @ 25°C	Contact for details
Hydroxyl Value	Contact for details
Specific Gravity	Contact for details
Water Content	< 0.1%

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