Description

2-Ethyl-2-(Hydroxymethyl)-1,3-Propanediol Polymer With 1,3-Diisocyanato Methylbenzene And 2,2'-Oxybis[Ethanol], 4-Methyl-2-Pentanone Oxime-Blocked is a specialized, blocked polyisocyanate crosslinker designed for high-performance coating systems. This product matters because it provides a latent reactive site that activates upon heating, enabling the formulation of one-component (1K) polyurethane coatings with excellent shelf stability and superior final film properties. It is essential for manufacturers in the industrial coatings, automotive refinish, and plastic coatings sectors seeking to enhance durability, chemical resistance, and mechanical performance.

Application

• One-Component (1K) Polyurethane Coatings: Serves as a blocked crosslinker that reacts with polyols upon baking, eliminating the need for a two-component mixing system.
• Automotive Refinish and OEM Coatings: Used in primer-surfacers, basecoats, and clearcoats to provide excellent gloss retention, scratch resistance, and weatherability.
• Industrial Maintenance and Protective Coatings: Formulated into coatings for metal substrates, pipelines, and structural steel requiring high chemical and corrosion resistance.
• Plastic Coatings: Enhances adhesion and flexibility on various plastic substrates for automotive interiors, consumer electronics, and appliances.
• Coil Coatings: Contributes to the production of pre-coated metal sheets with durable, decorative, and protective finishes.
• Wire and Cable Enamels: Imparts thermal stability and electrical insulation properties in magnet wire coatings.
• Adhesives and Sealants: Used as a crosslinking agent in heat-curable adhesive formulations for high-strength bonds.

Basic Information

Product Name	2-Ethyl-2-(Hydroxymethyl)-1,3-Propanediol Polymer With 1,3-Diisocyanato Methylbenzene And 2,2'-Oxybis[Ethanol], 4-Methyl-2-Pentanone Oxime-Blocked
CAS No.	147853-37-0
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Blocked polyisocyanate based on TDI and TMP; TDI/TMP adduct, blocked with methyl ethyl ketoxime (MEKO); Polyurethane crosslinker, blocked; Blocked aliphatic polyisocyanate; 1,3-Diisocyanatomethylbenzene, polymer with 2-ethyl-2-(hydroxymethyl)-1,3-propanediol and 2,2'-oxybis[ethanol], oxime-blocked; Toluene diisocyanate (TDI) trimethylolpropane (TMP) adduct, MEKO-blocked; Blocked TDI trimer
EINECS	Contact for details

Quality Control

Our blocked polyisocyanate crosslinker is manufactured under a stringent quality management system. Each batch undergoes rigorous analytical testing, including measurement of NCO content (blocked), viscosity, color, and solvent content, to ensure consistency and performance reliability for your formulations. Certificates of Analysis (COA) documenting full specifications are available upon request.

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); containers must be kept tightly sealed to prevent contact with atmospheric moisture, which can lead to premature deblocking or gelation. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Solid Content	Contact for details
Viscosity (at 25°C)	Contact for details
Blocked NCO Content	Contact for details
Color (Gardner)	≤ 2
Solvent Content	Contact for details
De-blocking Temperature	Contact for details

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