Description

1,3-Propanediol, 2-ethyl-2-(hydroxymethyl)-, polymer with 2,4-diisocyanato-1-methylbenzene, .alpha.-hydro-.omega.-hydroxypolyoxy(methyl-1,2-ethanediyl) and 2,2-oxybisethanol is a specialized polyurethane polyol prepolymer designed for high-performance applications. This compound matters for its role as a key building block in formulating advanced polymers with tailored properties such as flexibility, durability, and chemical resistance. It is primarily needed by manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries seeking to enhance product performance.

Application

• High-Performance Polyurethane Coatings: Used as a reactive component in two-component (2K) polyurethane systems for industrial, automotive, and protective coatings requiring excellent weatherability and mechanical strength.
• Adhesives and Sealants: Serves as a polyol component in formulating flexible, durable adhesives and sealants with strong bonding properties and resistance to environmental stress.
• Elastomer Production: A critical raw material for manufacturing cast, thermoplastic, or millable polyurethane elastomers used in wheels, rollers, and impact-resistant parts.
• Composite Materials: Employed in the synthesis of polymer matrices for fiber-reinforced composites, enhancing interfacial adhesion and overall material toughness.
• Specialty Resins: Utilized in creating customized resin formulations for potting, encapsulation, and molding applications where specific thermal or mechanical properties are required.

Basic Information

Product Name	1,3-Propanediol, 2-ethyl-2-(hydroxymethyl)-, polymer with 2,4-diisocyanato-1-methylbenzene, .alpha.-hydro-.omega.-hydroxypolyoxy(methyl-1,2-ethanediyl) and 2,2-oxybisethanol
CAS No.	87260-77-3
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Trimethylolpropane (TMP)-Based Polyurethane Polyol; Polyurethane Prepolymer based on TMP and TDI; TMP-TDI Polyol Adduct; Polyoxypropylene triol, TDI-terminated; Polyether polyol, TMP-initiated, TDI-capped; Polyurethane polyol resin CAS 87260-77-3; Adduct of trimethylolpropane, toluene diisocyanate, and polypropylene glycol; Urethane-modified polyol for coatings.
EINECS	Contact for details

Quality Control

Our 1,3-Propanediol, 2-ethyl-2-(hydroxymethyl)-, polymer with 2,4-diisocyanato-1-methylbenzene, .alpha.-hydro-.omega.-hydroxypolyoxy(methyl-1,2-ethanediyl) and 2,2-oxybisethanol is produced under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure consistency in hydroxyl value, viscosity, isocyanate content (NCO%), and other critical parameters. Certificates of Analysis (COA) documenting full specifications are available upon request to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); containers must be kept tightly sealed when not in use to prevent absorption of atmospheric moisture, which can affect product performance. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Clear, viscous liquid
Color (Gardner)	≤ 3
Hydroxyl Value (mg KOH/g)	Contact for details
Viscosity (at 25°C, mPa·s)	Contact for details
Isocyanate Content (NCO%)	Contact for details
Water Content	≤ 0.1%
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.