Description

Sulfurous acid, monosodium salt, polymer with 1,4-butanediol, 2-butene-1,4-diol, 1,6-diisocyanatohexane and methyloxirane, reaction products with Me Et ketone oxime is a specialized polyurethane-based polymer blocked with methyl ethyl ketoxime (MEKO). This product matters as a high-performance, blocked polyisocyanate prepolymer that remains stable at room temperature but cures upon heating, releasing the blocking agent. It is primarily needed by industrial manufacturers seeking advanced, single-component coating and adhesive systems that offer excellent shelf stability, chemical resistance, and controlled curing profiles for demanding applications.

Application

• Single-Component (1K) Polyurethane Coatings: Used as a latent crosslinker in high-performance industrial, automotive, and coil coatings that cure at elevated temperatures.
• Adhesives and Sealants: Serves as a key component in heat-curable adhesive formulations for bonding metals, plastics, and composites.
• Elastomers and Casting Resins: Employed in the production of durable polyurethane elastomers and cast parts requiring specific mechanical properties.
• Wire and Cable Enamels: Functions as a resin component in insulating varnishes and magnet wire coatings.
• Textile and Leather Finishes: Used to create durable, flexible, and water-resistant finishes.
• Industrial Maintenance Paints: Provides enhanced chemical and corrosion resistance in protective coating systems for infrastructure and equipment.

Basic Information

Product Name	Sulfurous acid, monosodium salt, polymer with 1,4-butanediol, 2-butene-1,4-diol, 1,6-diisocyanatohexane and methyloxirane, reaction products with Me Et ketone oxime
CAS No.	144124-59-4
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	MEKO-blocked polyisocyanate prepolymer; Blocked HDI-based polyurethane prepolymer; Oxime-blocked polyisocyanate; Polyurethane, reaction products with methyl ethyl ketoxime; Hexamethylene diisocyanate (HDI) based blocked prepolymer; Thermally curable polyurethane resin; 1,6-Diisocyanatohexane, polymer with 1,4-butanediol, 2-butene-1,4-diol, methyloxirane and monosodium salt of sulfurous acid, reaction products with butanone oxime
EINECS	Contact for details

Quality Control

Our blocked polyisocyanate prepolymers undergo rigorous quality testing to ensure batch-to-batch consistency and performance in final formulations. Key parameters such as blocked isocyanate content, viscosity, solids content, and color are strictly monitored. Certificates of Analysis (COA) documenting these 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). Keep the container tightly sealed to prevent moisture absorption, which can lead to premature reaction and gelation. Keep away from heat and open flame.

Specification

Item	Specification
Appearance	Clear, viscous liquid
Color (Gardner)	≤ 3
Solids Content	Contact for details
Viscosity (at 25°C)	Contact for details
Blocked NCO 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.