Description

2-Propanol, 1,1',1''-Nitrilotris-, Polymer With 1,3-Diisocyanatomethylbenzene And α-Hydro-ω-Hydroxypoly[ Oxy(Methyl-1,2-Ethanediyl)] CAS NO 67939-29-1 is a specialized polyurethane prepolymer or block copolymer, synthesized from a triol, an aromatic diisocyanate, and a polyether polyol. This engineered polymer is valued for its unique combination of flexibility, adhesion, and chemical resistance, making it a critical raw material for high-performance formulations. It is primarily sought by manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries for developing advanced polyurethane systems.

Application

• High-Performance Coatings: Used as a key resin component in two-component polyurethane coatings for industrial, marine, and protective applications, offering excellent durability and chemical resistance.
• Adhesives & Sealants: Serves as a prepolymer in formulating flexible, strong-bonding polyurethane adhesives and sealants for construction, automotive, and composite bonding.
• Composite Materials: Utilized in the matrix for fiber-reinforced composites, enhancing interlaminar adhesion and overall mechanical properties.
• Potting & Encapsulation: Employed in electronic and electrical applications for potting compounds that protect components from moisture, vibration, and thermal stress.
• Binder Systems: Functions as a polymeric binder in advanced materials, including foundry sands, abrasives, and non-woven fabrics.

Basic Information

Product Name	2-Propanol, 1,1',1''-Nitrilotris-, Polymer With 1,3-Diisocyanatomethylbenzene And α-Hydro-ω-Hydroxypoly[ Oxy(Methyl-1,2-Ethanediyl)]
CAS No.	67939-29-1
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Poly[oxy(methyl-1,2-ethanediyl)], α-hydro-ω-hydroxy-, polymer with 1,1',1''-nitrilotris[2-propanol] and 1,3-diisocyanatomethylbenzene; Polyether polyol, polymer with 1,1',1''-nitrilotris[2-propanol] and 1,3-diisocyanatomethylbenzene; TMP (Trimethylolpropane) started polyether polyol, toluene diisocyanate (TDI) prepolymer; Polyurethane prepolymer based on TMP, polyether polyol, and TDI; Aromatic polyether-based polyurethane prepolymer; Block copolymer of TMP, poly(propylene glycol), and toluene diisocyanate; CAS 67939-29-1.
EINECS	Contact for details

Quality Control

Our production of this polyurethane prepolymer adheres to strict quality management systems to ensure batch-to-batch consistency and performance reliability. Key parameters such as NCO content, viscosity, and hydroxyl value are rigorously monitored. A comprehensive Certificate of Analysis (COA) detailing all relevant specifications is provided with every shipment to support your quality assurance and regulatory compliance needs.

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); exposure to atmospheric moisture will lead to premature reaction and viscosity increase. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Clear, viscous liquid
Color (Gardner)	≤ 3
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 (Karl Fischer)	≤ 0.05%

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