Description

Poly(Toluene 2,4-Diisocyanate-Polyethylene Glycol-Polypropylene Glycol) Copolymer is a specialized polyurethane prepolymer based on toluene diisocyanate (TDI) and a polyether polyol blend. This compound is a critical raw material valued for its ability to impart flexibility, resilience, and hydrolytic stability to final polymer products. It is essential for formulators and manufacturers in the polyurethane foam, adhesive, sealant, coating, and elastomer industries seeking to enhance product performance.

Application

• Flexible Polyurethane Foams: A key component in the production of slabstock and molded foams for automotive seating, furniture, and bedding, providing tailored softness and durability.
• Coatings and Sealants: Used in formulating high-performance, moisture-curing coatings, waterproofing membranes, and elastic sealants with excellent adhesion and weather resistance.
• Adhesives and Binders: Serves as a base polymer for structural and assembly adhesives, as well as binders in foundry sands and composite materials.
• Elastomers and Castables: Employed in the manufacture of microcellular elastomers, rollers, wheels, and industrial cast parts requiring a balance of toughness and flexibility.
• Textile and Leather Finishing: Utilized in coatings and finishes to provide fabrics and leather with water repellency, abrasion resistance, and a soft hand feel.
• Medical Device Components: Suitable for producing certain biocompatible polyurethane parts, subject to strict purity and compliance specifications.

Basic Information

Product Name	Poly(Toluene 2,4-Diisocyanate-Polyethylene Glycol-Polypropylene Glycol) Copolymer
CAS No.	70682-83-6
Molecular Formula	(C9H6N2O2·C2nH4nOn·C3nH6nOn)x
Molecular Weight	Variable (Polymer)
Synonyms	TDI-PEG-PPG Copolymer; Poly(TDI-PEG-PPG); TDI-based Polyurethane Prepolymer; Polyoxyethylene polyoxypropylene glycol toluene diisocyanate copolymer; TDI Adduct with PEG/PPG; Polyether polyurethane prepolymer; Urethane prepolymer based on TDI and polyether polyol; Adiprene-type prepolymer (related class)
EINECS	Contact for details

Quality Control

Our Poly(Toluene 2,4-Diisocyanate-Polyethylene Glycol-Polypropylene Glycol) Copolymer is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure consistent performance, including measurement of NCO content, viscosity, hydroxyl value, and moisture content. Certificates of Analysis (COA) detailing batch-specific results are available upon request. We support compliance with relevant global regulatory frameworks, including REACH.

Storage

Preserve in a tightly closed, moisture-proof container, protected from light. Store in a cool, dry, and well-ventilated area at temperatures recommended for polyurethane prepolymers, typically between 15°C and 25°C (59°F and 77°F). This product is hygroscopic (moisture-sensitive) and must be protected from atmospheric moisture to prevent premature curing and viscosity increase.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid
Identification (IR)	Conforms to structure
NCO Content (%)	Contact for details
Viscosity (cP @ 25°C)	Contact for details
Hydroxyl Value (mg KOH/g)	Contact for details
Moisture Content (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.