Description

Imidodicarbonic Diamide, N,N',2-Tris(6-Isocyanatohexyl)-, Polymer With 1,4-Butanediol, 2-Butene-1,4-Diol And Methyloxirane, Bisulfited, Me Et Ketone Oxime-Blocked is a specialized, blocked polyisocyanate prepolymer designed for controlled reactivity. This compound is crucial for formulating high-performance, moisture-curing polyurethane coatings and adhesives that require extended pot life and one-component application convenience. It is primarily needed by manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries seeking to enhance product durability and processing characteristics.

Application

• One-Component Polyurethane (1K PU) Coatings: Used as a latent crosslinker in moisture-cure industrial, wood, and automotive refinish coatings.
• Adhesives and Sealants: Serves as a blocked curing agent in prepolymer formulations for structural adhesives and elastic sealants.
• Elastomer Production: Employed in the manufacture of castable polyurethane elastomers requiring precise processing windows.
• Textile and Leather Finishes: Provides durable, flexible coatings for technical textiles and synthetic leather.
• Wire and Cable Insulation: Used in formulating flame-retardant and abrasion-resistant insulating coatings.
• Composite Materials: Acts as a matrix resin or modifier in fiber-reinforced plastic (FRP) composites.

Basic Information

Product Name	Imidodicarbonic Diamide, N,N',2-Tris(6-Isocyanatohexyl)-, Polymer With 1,4-Butanediol, 2-Butene-1,4-Diol And Methyloxirane, Bisulfited, Me Et Ketone Oxime-Blocked
CAS No.	131731-18-5
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Blocked HDI-based polyisocyanate prepolymer; Oxime-blocked polyisocyanate; MEKO-blocked polyisocyanate; Bisulfite-blocked polyisocyanate; HDI trimer derivative, blocked; Moisture-curable polyurethane prepolymer; 1K PU crosslinker; CAS 131731-18-5
EINECS	Contact for details

Quality Control

Our blocked polyisocyanate prepolymers are manufactured under strict process controls to ensure batch-to-batch consistency and performance reliability. Quality is verified through analytical methods including titration for NCO content, viscosity measurement, and determination of blocking agent content. Certificates of Analysis (COA) documenting key parameters are available upon request for every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at temperatures between 15°C and 25°C (59°F and 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 reaction and gelation.

Specification

Item	Specification
Appearance	Clear, viscous liquid
Color (Gardner)	≤ 3
Viscosity (at 25°C)	Contact for details
NCO Content (theoretical, blocked)	Contact for details
Solid Content	Contact for details
Blocking Agent (MEKO) Content	Contact for details
Specific Gravity (at 25°C)	Contact for details

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