Description

1,3-Propandiol, 2-Methyl-2-(Hydroxymethyl)-, Polymer With 1,3-Diisocyanatomethylbenzene And Phenol CAS NO 9068-98-8 is a specialized polyurethane prepolymer or resin intermediate derived from a reaction involving a branched diol and an aromatic diisocyanate, capped with phenol. This product matters for formulators seeking to create high-performance, cross-linked polymer systems with enhanced chemical resistance, durability, and thermal stability. It is primarily needed by 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, marine, and protective coatings requiring excellent adhesion and corrosion resistance.
• Adhesives & Sealants: Serves as a building block for formulating structural and specialty adhesives with strong bonding strength and flexibility.
• Elastomers: Employed in the production of polyurethane elastomers for gaskets, rollers, and impact-absorbing components.
• Composite Materials: Acts as a matrix resin or modifier in fiber-reinforced plastics (FRP) and other composite systems.
• Electrical Encapsulation: Utilized in potting and encapsulation compounds for electronic components due to its insulating properties.
• Binder Systems: Functions as a reactive binder in foundry sands, abrasives, and friction materials.

Basic Information

Product Name	1,3-Propandiol, 2-Methyl-2-(Hydroxymethyl)-, Polymer With 1,3-Diisocyanatomethylbenzene And Phenol
CAS No.	9068-98-8
Molecular Formula	(C11H14N2O2 • C7H8O • C5H12O3)n
Molecular Weight	Polymer - Contact for details
Synonyms	Poly(oxy(methyl-1,2-ethanediyl)), α-hydro-ω-hydroxy-, polymer with 1,3-diisocyanatomethylbenzene and phenol; Trimethylolpropane (TMP)-based polyurethane prepolymer; Phenol-blocked aromatic polyisocyanate prepolymer; 1,3-Bis(isocyanatomethyl)benzene, polymer with 2-ethyl-2-(hydroxymethyl)-1,3-propanediol and phenol; MDI (XDI) type blocked prepolymer; Benzene, 1,3-diisocyanatomethyl-, polymer with 2-ethyl-2-(hydroxymethyl)-1,3-propanediol and phenol
EINECS	Contact for details

Quality Control

Our production of this polymer adheres to strict quality management systems. Each batch undergoes rigorous analytical testing to ensure consistent performance, including measurement of NCO equivalent weight, blocking agent content, viscosity, and solvent content. Certificates of Analysis (COA) detailing these specifications are available upon request to support your quality assurance protocols.

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). Keep away from heat, sparks, and open flame. Moisture-sensitive - protect from humidity to prevent premature reaction.

Specification

Item	Specification
Appearance	Viscous liquid to solid mass
Color	Pale yellow to amber
NCO Equivalent Weight	Contact for details
Blocked NCO Content	Contact for details
Viscosity @ 25°C	Contact for details
Solvent Content	< 1.0% (if applicable)
De-blocking Temperature	~130-160°C (Typical)

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