Description

1,3-Benzenedicarboxylic acid polymer with 2-ethyl-2-(hydroxymethyl)-1,3-propanediol, 1,6-hexanediol, 5-isocyanato-1-(isocyanatomethyl)-1,3,3-trimethylcyclohexane and 2,2,4(or 2,4,4)-trimethyl-1,6-hexanediol, acetone oxime-blocked is a specialized, blocked polyisocyanate prepolymer designed for high-performance coating systems. This advanced material serves as a latent crosslinker, offering excellent storage stability and controlled reactivity upon thermal deblocking. It is engineered to meet the demanding requirements of industrial formulators seeking durable, chemical-resistant finishes. Key target industries include automotive OEM and refinish, industrial metal coatings, and heavy-duty protective coatings.

Application

• Automotive OEM and Refinish Coatings: As a crosslinker in high-gloss, durable clearcoats and pigmented topcoats requiring excellent weathering and chemical resistance.
• Industrial Metal Coatings: For coil coatings, appliance finishes, and general industrial metal primers and topcoats where hardness, flexibility, and corrosion protection are critical.
• Heavy-Duty Protective Coatings: In marine, offshore, and infrastructure coatings that demand exceptional resistance to abrasion, solvents, and harsh environmental conditions.
• Plastic Coatings: For adhesion promotion and providing a hard, scratch-resistant surface on automotive plastics and consumer electronics.
• Two-Component (2K) Polyurethane Systems: As a thermally activated crosslinking agent in formulations with hydroxyl-functional acrylic or polyester resins.
• Powder Coatings: Utilized in formulations where a one-pack, storage-stable product with a specific cure profile is required.

Basic Information

Item	Details
Product Name	1,3-Benzenedicarboxylic acid polymer with 2-ethyl-2-(hydroxymethyl)-1,3-propanediol, 1,6-hexanediol, 5-isocyanato-1-(isocyanatomethyl)-1,3,3-trimethylcyclohexane and 2,2,4(or 2,4,4)-trimethyl-1,6-hexanediol, acetone oxime-blocked
CAS No.	117500-34-2
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Blocked polyisocyanate based on IPDI and TMP; Isophthalic acid, polymer with 2-ethyl-2-(hydroxymethyl)-1,3-propanediol, 1,6-hexanediol, 5-isocyanato-1-(isocyanatomethyl)-1,3,3-trimethylcyclohexane and 2,2,4(or 2,4,4)-trimethyl-1,6-hexanediol, acetone oxime-blocked; IPDI-based blocked polyisocyanate resin; Acetone oxime-blocked aliphatic polyisocyanate; Thermolatent hardener; Crosslinker for polyurethane coatings.
EINECS	Contact for details

Quality Control

Our production of this blocked polyisocyanate adheres to stringent quality management systems to ensure batch-to-batch consistency and performance reliability. Key parameters such as NCO content (blocked), viscosity, solids content, color, and deblocking temperature are rigorously tested. Certificates of Analysis (COA) documenting these specifications are provided with every shipment to support your formulation and quality assurance processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at temperatures between 15°C and 25°C (59°F and 77°F). This product is hygroscopic (moisture-sensitive); ensure containers are sealed immediately after use to prevent moisture ingress, which can lead to premature reaction and gelation. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Clear, viscous liquid
Color (Gardner)	≤ 2
Solids Content	70 ± 2 %
Viscosity (at 25°C)	2000 - 4000 mPa·s
Blocked NCO Content	8.0 - 10.0 %
Deblocking Temperature	Approx. 130 - 140 °C
Density (at 20°C)	~1.10 g/cm³

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