Description

1,3-Propanediol, 2-Ethyl-2-(Hydroxymethyl)-, Polymer With 1,3-Diisocyanato-2-Methylbenzene, 2,4-Diisocyanato-1-Methylbenzene And 2,2'-Oxybis[Ethanol] is a specialized polyurethane prepolymer or resin intermediate, identified by CAS NO 104339-56-2. This compound is engineered to deliver enhanced performance characteristics such as flexibility, adhesion, and chemical resistance in formulated end-products. It is a critical raw material for industrial manufacturers seeking to develop high-performance coatings, adhesives, sealants, and elastomers.

Application

• High-Performance Coatings: Used as a key component in polyurethane-based industrial, automotive, and protective coatings for superior durability and gloss.
• Adhesives & Sealants: Serves as a prepolymer in formulating structural and elastic adhesives with excellent bonding strength and environmental resistance.
• Elastomers and Castables: Employed in the production of flexible polyurethane parts, gaskets, and rollers requiring specific mechanical properties.
• Resin Modification: Acts as a modifier to improve the toughness, impact resistance, and weatherability of other polymer systems.
• Industrial Composites: Utilized in composite materials for enhanced interfacial adhesion between fibers and the polymer matrix.
• Specialty Inks and Pigment Dispersions: Functions as a resin binder in high-quality printing inks and colorant systems.

Basic Information

Item	Details
Product Name	1,3-Propanediol, 2-Ethyl-2-(Hydroxymethyl)-, Polymer With 1,3-Diisocyanato-2-Methylbenzene, 2,4-Diisocyanato-1-Methylbenzene And 2,2'-Oxybis[Ethanol]
CAS No.	104339-56-2
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Trimethylolpropane (TMP)-Toluene Diisocyanate (TDI)-Diethylene Glycol Polymer; TMP-TDI-DEG Adduct; Polyurethane Prepolymer based on TMP, TDI, and DEG; TMP-TDI Initiator; TMP-TDI Resin; TDI-TMP-DEG Adduct; Isocyanate-Terminated Polyurethane Prepolymer; Urethane Polyol Adduct
EINECS	Contact for details

Quality Control

Our production of this polyurethane intermediate adheres to strict quality management systems to ensure batch-to-batch consistency and performance reliability. Quality is verified through parameters such as isocyanate (NCO) content, viscosity, and hydroxyl value. A comprehensive Certificate of Analysis (COA) detailing all relevant specifications is provided with each shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. This material is hygroscopic (moisture-sensitive) and must be stored under a dry, inert atmosphere (e.g., nitrogen blanket) to prevent premature reaction and viscosity increase. Recommended storage temperature is between 15°C and 25°C in a cool, dry, well-ventilated area away from heat sources and incompatible materials such as water, alcohols, amines, and strong bases.

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
Solid Content	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.