Description

Furan, Tetrahydro-, Polymer With 4,4'-Diisocyanato-3,3'-Dimethyl-1,1'-Biphenyl And Oxirane CAS NO 121028-80-6 is a specialized polyurethane prepolymer or resin intermediate derived from tetrahydrofuran (THF), a modified aromatic diisocyanate (TODI), and oxirane (ethylene oxide). This engineered polymer is valued for its ability to impart enhanced thermal stability, chemical resistance, and tailored mechanical properties to final cured materials. It is primarily utilized by formulators and manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries seeking high-performance polyurethane systems.

Application

• High-Performance Coatings: As a key resin component in industrial, automotive, and protective coatings requiring excellent durability and chemical resistance.
• Specialty Adhesives & Sealants: Formulating structural adhesives and high-strength sealants for aerospace, automotive, and construction applications.
• Engineered Elastomers: Manufacturing cast polyurethane elastomers for rollers, wheels, gaskets, and impact-absorbing components.
• Composite Materials: Acting as a matrix resin or modifier in fiber-reinforced composites to improve interfacial adhesion and toughness.
• Encapsulation & Potting Compounds: Used in electrical and electronic applications for protecting components from moisture and mechanical stress.
• Flexible & Rigid Foams: Serving as a specialized polyol component in the formulation of high-resilience or microcellular foams.

Basic Information

Product Name	Furan, Tetrahydro-, Polymer With 4,4'-Diisocyanato-3,3'-Dimethyl-1,1'-Biphenyl And Oxirane
CAS No.	121028-80-6
Molecular Formula	Polymeric Mixture
Molecular Weight	Varies by grade and formulation
Synonyms	Poly(oxy-1,4-butanediyl), α-hydro-ω-hydroxy-, polymer with 1,1'-methylenebis[4-isocyanatobenzene] and oxirane; PolyTHF-TODI-EO copolymer; Poly(tetramethylene ether glycol)-co-TODI-co-ethylene oxide; Polyurethane prepolymer based on PTMEG, TODI, and ethylene oxide; Oxirane, polymer with 4,4'-diisocyanato-3,3'-dimethyl-1,1'-biphenyl and tetrahydrofuran; TODI/PTMEG/EO terpolymer; Polyether-urethane prepolymer
EINECS	Contact for details

Quality Control

Every batch of our polymer intermediates undergoes rigorous quality testing to ensure consistency and performance. Key parameters such as NCO content, viscosity, hydroxyl value, and residual monomer levels are strictly monitored. Certificates of Analysis (COA) are provided with each shipment, and our quality system supports compliance with relevant industry standards. Specifications can be aligned with customer requirements for specific applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (typically 15-25°C). This product is hygroscopic (moisture-sensitive); containers must be kept sealed to prevent exposure to atmospheric moisture, which can lead to premature reaction and gelation. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid
NCO Content	Contact for details
Viscosity @ 25°C	Contact for details
Hydroxyl Value (mg KOH/g)	Contact for details
Specific Gravity @ 25°C	Contact for details
Moisture Content	< 0.05% (by Karl Fischer)
Residual Monomer (TODI)	< 0.5% (by HPLC)

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