Description

1,3-Propanediol, 2-Ethyl-2-(Hydroxymethyl)-, Polymer With 1,3-Diisocyanatomethylbenzene, Methyloxirane And 2,2'-Oxybis[Ethanol] is a specialized polyurethane polyol polymer, identified by CAS number 127820-99-9. This advanced polymer is engineered to deliver exceptional performance as a reactive intermediate in the formulation of high-performance coatings, adhesives, sealants, and elastomers (CASE). It is particularly sought after by manufacturers in the automotive, industrial coatings, and specialty chemical industries who require materials that offer superior durability, chemical resistance, and tailored mechanical properties.

Application

• High-Performance Polyurethane Coatings: A key resin component for industrial, automotive, and protective coatings requiring excellent weatherability, gloss, and chemical resistance.
• Specialty Adhesives and Sealants: Used to formulate polyurethane-based adhesives and sealants with strong bonding strength and flexibility.
• Elastomer Production: Serves as a polyol for manufacturing cast, thermoplastic, or millable polyurethane elastomers used in wheels, rollers, and gaskets.
• Composite Materials: Acts as a matrix resin or modifier in fiber-reinforced plastics and other composite systems.
• Industrial and Maintenance Paints: Provides a robust base for heavy-duty paints used in marine, infrastructure, and oil & gas applications.
• Flexible and Rigid Foams: Can be utilized in formulating specialized polyurethane foam systems with specific density and resilience profiles.

Basic Information

Product Name	1,3-Propanediol, 2-Ethyl-2-(Hydroxymethyl)-, Polymer With 1,3-Diisocyanatomethylbenzene, Methyloxirane And 2,2'-Oxybis[Ethanol]
CAS No.	127820-99-9
Molecular Formula	Polymeric Mixture
Molecular Weight	Varies by grade and polymerization degree
Synonyms	Polyurethane Polyol based on TMP, MDI, and PEG; Trimethylolpropane (TMP) initiated polyether polyol; Poly(oxy-1,2-ethanediyl), α-hydro-ω-hydroxy-, polymer with 2-ethyl-2-(hydroxymethyl)-1,3-propanediol, 1,3-diisocyanatomethylbenzene and methyloxirane; Polyether-polyurethane polyol; MDI/TMP/PEG copolymer; Reactive polyol resin; Hydroxyl-terminated polyurethane prepolymer; CAS 127820-99-9
EINECS	Contact for details

Quality Control

Our production of this advanced polymer adheres to strict quality management systems. Each batch is characterized for critical parameters including hydroxyl value, viscosity, water content, and color to ensure consistent performance and batch-to-batch reproducibility. Certificates of Analysis (COA) detailing these specifications are available upon request. We support compliance with relevant global standards for industrial chemicals, including REACH.

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 / 59-77°F). This product is hygroscopic (moisture-sensitive); containers must be kept tightly sealed 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)	As per grade (e.g., 100 - 300)
Viscosity @ 25°C (cPs)	As per grade
Water Content	≤ 0.1%
Acid Value (mg KOH/g)	≤ 1.0
Specific Gravity @ 25°C	1.05 - 1.15

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