Description

Castor Oil, Polymer With 1,3-Diisocyanato-2-Methylbenzene And 2,4-Diisocyanato-1-Methylbenzene is a specialized polyurethane prepolymer derived from the reaction of castor oil with a mixture of toluene diisocyanate (TDI) isomers. This product matters as a versatile, bio-based intermediate that imparts flexibility, hydrolytic stability, and enhanced adhesion properties to final formulations. It is primarily needed by manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries, as well as for producing specialty polymers and composites where a renewable component is advantageous.

Application

• Flexible Coatings Binder: Used in high-performance polyurethane coatings for textiles, leather finishes, and flexible substrates requiring excellent abrasion resistance.
• Adhesive & Sealant Formulations: Serves as a key prepolymer in moisture-curing adhesives and sealants, offering good initial tack and long-term durability.
• Elastomer Production: Acts as a soft segment or chain extender in the manufacture of castable polyurethane elastomers for gaskets, rollers, and industrial parts.
• Composite Matrix Material: Utilized as a resin component in bio-composites and fiber-reinforced materials, enhancing interfacial bonding with natural fibers.
• Impact Modifier: Incorporated into more rigid polymer systems to improve toughness and impact resistance.
• Waterproofing Membranes: A base component in formulations for liquid-applied waterproofing and roofing systems.

Basic Information

Product Name	Castor Oil, Polymer With 1,3-Diisocyanato-2-Methylbenzene And 2,4-Diisocyanato-1-Methylbenzene
CAS No.	123774-61-8
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Castor oil-TDI prepolymer; TDI-castor oil adduct; Polyurethane prepolymer from castor oil and TDI; Castor oil polyurethane; TDI-modified castor oil polymer; Urethane oil; TDI/CASTOR OIL POLYMER; CASTOR OIL-TOLUENE DIISOCYANATE COPOLYMER
EINECS	Contact for details

Quality Control

Our Castor Oil, Polymer With 1,3-Diisocyanato-2-Methylbenzene And 2,4-Diisocyanato-1-Methylbenzene is produced under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure consistent performance, including measurement of NCO content, viscosity, and residual monomer levels. Certificates of Analysis (COA) documenting all key parameters are available upon request to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. This product is hygroscopic (moisture-sensitive) and must be stored under a dry, inert atmosphere (e.g., nitrogen blanket) to prevent premature reaction and gelation. Recommended storage temperature is between 15°C and 25°C (59°F and 77°F) in a cool, dry, well-ventilated area away from heat sources and moisture.

Specification

Item	Specification
Appearance	Clear, viscous liquid
Color (Gardner)	≤ 4
NCO Content	Contact for details
Viscosity (at 25°C)	Contact for details
Specific Gravity (at 25°C)	Contact for details
Moisture (Karl Fischer)	≤ 0.05%
Residual TDI Monomer	≤ 0.5%

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