Description

1,3-Butanediol, Polymer With 2-Ethyl-2-(Hydroxymethyl)-1,3-Propanediol And 5-Isocyanato-1-(Isocyanatomethyl) -1,3,3-Trimethylcyclohexane, Di-Et Malonate-Blocked is a specialized blocked polyisocyanate prepolymer designed for advanced coating and adhesive formulations. This product matters because it provides a latent, thermally-activated crosslinking functionality, enabling the formulation of high-performance, one-component (1K) systems with excellent shelf stability. Industrial chemists and formulators in the coatings sector need this chemical to develop durable finishes with enhanced chemical resistance and mechanical properties for demanding applications.

Application

• As a crosslinking agent in high-performance one-component (1K) polyurethane coatings for automotive, industrial, and plastic substrates.
• Formulation of heat-curable adhesives and sealants requiring excellent bond strength and environmental resistance.
• Key component in powder coating formulations, where it acts as a blocked curing agent.
• Manufacture of coil and can coatings that demand flexibility, hardness, and corrosion resistance.
• Production of electrical insulation coatings and wire enamels.
• Use in specialty ink systems for applications requiring abrasion and solvent resistance.
• Development of composite materials and fiber-reinforced plastics (FRP).
• Research and development of novel polymer networks in advanced material science.

Basic Information

Product Name	1,3-Butanediol, Polymer With 2-Ethyl-2-(Hydroxymethyl)-1,3-Propanediol And 5-Isocyanato-1-(Isocyanatomethyl)-1,3,3-Trimethylcyclohexane, Di-Et Malonate-Blocked
CAS No.	103818-82-2
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Blocked polyisocyanate based on IPDI and TMP; Diethyl malonate-blocked IPDI-TMP prepolymer; Blocked aliphatic polyisocyanate; IPDI-TMP adduct, blocked with diethyl malonate; Thermolatent polyisocyanate; 1,3-Butanediol polymer with 2-ethyl-2-(hydroxymethyl)-1,3-propanediol and 5-isocyanato-1-(isocyanatomethyl)-1,3,3-trimethylcyclohexane, blocked with diethyl malonate; Blocked isophorone diisocyanate (IPDI) trimer; Latent curing agent for polyurethanes.
EINECS	Contact for details

Quality Control

Our blocked polyisocyanate prepolymers undergo rigorous quality testing to ensure batch-to-batch consistency and performance reliability. Key parameters such as blocked isocyanate content, viscosity, color, and deblocking temperature are strictly monitored. We adhere to a comprehensive Quality Management System and Certificates of Analysis (COA) with detailed 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, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); ensure containers are sealed immediately after use to prevent exposure to atmospheric moisture, which can lead to premature reaction and gelation. Keep away from strong acids, bases, and other incompatible materials.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid
Identification (IR)	Conforms to structure
Blocked NCO Content	Contact for details
Viscosity (at 25°C)	Contact for details
Color (Gardner)	≤ 3
Solid Content	Contact for details
Deblocking Temperature	Contact for details
Moisture (KF)	≤ 0.1%

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