Description

1,3-Propanediol, 2-Ethyl-2-(Hydroxymethyl)-, Polymer With 1,3-Diisocyanatomethylbenzene And .Alpha.-Hydro-.Omega.-Hydroxypoly(Oxy-1,2-Ethanediyl) is a high-performance polyurethane prepolymer or polyol, widely recognized for its excellent mechanical properties and versatility in formulation. This specialized polymer is engineered to deliver enhanced durability, flexibility, and chemical resistance in demanding industrial applications. It is a critical raw material for manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries, as well as for advanced composite materials.

Application

• High-Performance Coatings & Paints: Used as a key component in polyurethane-based industrial, automotive, and protective coatings for superior gloss, adhesion, and weather resistance.
• Adhesives & Sealants: Serves as a backbone polymer for formulating strong, flexible, and durable polyurethane adhesives and sealants used in construction, automotive assembly, and packaging.
• Elastomers & Castable Urethanes: Essential for producing polyurethane elastomers with tailored hardness, tensile strength, and abrasion resistance for wheels, rollers, and industrial parts.
• Composite Materials: Acts as a matrix resin or modifier in fiber-reinforced plastics (FRP) and other composites to improve impact strength and interfacial bonding.
• Flexible & Rigid Foams: Can be utilized in specialty foam formulations requiring specific mechanical or thermal insulation properties.
• Waterborne Polyurethane Dispersions (PUDs): A valuable raw material for creating environmentally friendly, low-VOC coating and adhesive systems.

Basic Information

Item	Details
Product Name	1,3-Propanediol, 2-Ethyl-2-(Hydroxymethyl)-, Polymer With 1,3-Diisocyanatomethylbenzene And .Alpha.-Hydro-.Omega.-Hydroxypoly(Oxy-1,2-Ethanediyl)
CAS No.	53426-99-6
Molecular Formula	Complex Polymer (Contact for details)
Molecular Weight	Varies by grade (Contact for details)
Synonyms	Trimethylolpropane (TMP)-Based Polyurethane Prepolymer; Poly(oxy-1,2-ethanediyl), .alpha.-hydro-.omega.-hydroxy-, polymer with 2-ethyl-2-(hydroxymethyl)-1,3-propanediol and 1,3-diisocyanatomethylbenzene; TMP-Initiated Polyether Polyol Adduct; Aromatic Polyether Polyurethane Prepolymer; Polyurethane Polyol based on TMP and Polyethylene Glycol (PEG); CAS 53426-99-6 Polymer; Reactive Polyurethane Intermediate
EINECS	Contact for details

Quality Control

Our production of this polymer adheres to strict quality management systems to ensure batch-to-batch consistency and performance reliability. Key parameters such as hydroxyl value (OHV), isocyanate content (NCO%), viscosity, and moisture content are rigorously monitored. Certificates of Analysis (COA) documenting full specifications are provided with every shipment to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. This material is hygroscopic (moisture-sensitive). Store in a cool, dry, and well-ventilated area at room temperature (typically 15-25°C). Keep the container tightly sealed when not in use to prevent moisture absorption and contamination, which can affect product performance.

Specification

Item	Specification
Appearance	Clear, viscous liquid
Color (Gardner)	≤ 3
Hydroxyl Value (OHV)	Contact for details
Viscosity @ 25°C	Contact for details
Water Content	≤ 0.1%
Acid Value	≤ 1.0 mg KOH/g

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