Description

1,3-Propanediol, 2-Ethyl-2-(Hydroxymethyl)-, Polymer With 1,3-Bis(1-Isocyanato-1-Methylethyl)Benzene is a specialized polyurethane prepolymer or resin intermediate derived from the reaction of a branched diol and a meta-substituted aromatic diisocyanate. This compound matters for its ability to impart unique properties such as enhanced flexibility, chemical resistance, and durability in high-performance polymer systems. It is primarily needed by formulators and manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries, as well as for advanced composite materials.

Application

• High-Performance Coatings: Used as a key resin component in industrial, automotive, and protective coatings requiring excellent weatherability and chemical resistance.
• Adhesives & Sealants: Serves as a building block for polyurethane-based adhesives and sealants, offering strong bonding and flexibility.
• Elastomers: Employed in the synthesis of specialty polyurethane elastomers for applications demanding toughness and resilience.
• Composite Materials: Acts as a matrix resin or modifier in fiber-reinforced composites for the aerospace and automotive sectors.
• Encapsulation & Potting Compounds: Utilized in electronic and electrical applications where durable, insulating materials are critical.
• Industrial Castings and Molds: Forms part of resin systems for creating durable prototypes, tools, and finished parts.

Basic Information

Product Name	1,3-Propanediol, 2-Ethyl-2-(Hydroxymethyl)-, Polymer With 1,3-Bis(1-Isocyanato-1-Methylethyl)Benzene
CAS No.	94857-19-9
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Poly[oxy(methyl-1,2-ethanediyl)], α-hydro-ω-hydroxy-, polymer with 1,3-bis(1-isocyanato-1-methylethyl)benzene; Trimethylolpropane polymer with m-TMXDI; Polyurethane prepolymer based on TMP and m-TMXDI; m-TMXDI/TMP polymer; Poly(trimethylolpropane-co-meta-tetramethylxylylene diisocyanate); Meta-tetramethylxylylene diisocyanate trimethylolpropane adduct; Isocyanate-terminated TMP prepolymer; Aromatic aliphatic polyurethane resin.
EINECS	Contact for details

Quality Control

Our 1,3-Propanediol, 2-Ethyl-2-(Hydroxymethyl)-, Polymer With 1,3-Bis(1-Isocyanato-1-Methylethyl)Benzene is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure consistency in parameters such as isocyanate content, viscosity, and equivalent weight. Certificates of Analysis (COA) documenting these 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, well-ventilated area at room temperature (15-25°C / 59-77°F). This product is hygroscopic (moisture-sensitive) and must be kept under a dry atmosphere (e.g., under nitrogen) to prevent premature reaction and degradation. Keep away from heat, sparks, open flames, and incompatible materials such as alcohols, amines, and water.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid
Identification (IR)	Conforms
Isocyanate Content (NCO%)	Contact for details
Viscosity @ 25°C	Contact for details
Equivalent Weight	Contact for details
Specific Gravity @ 25°C	Contact for details
Moisture Content	< 0.05%

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