Sulfurous acid, monosodium salt, polymer with 1,4-butanediol, 2-butene-1,4-diol, methyloxirane and N,N',2-tris(6-isocyanatohexyl)imidodicarbonic diamide, Me Et ketone oxime-blocked CAS NO 129783-37-5

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CAS No.:129783-37-5

Grade:Pharmacy Grade

Content:99.9%

Brand:Customizable

Packaging:Customizable

Description

Sulfurous acid, monosodium salt, polymer with 1,4-butanediol, 2-butene-1,4-diol, methyloxirane and N,N',2-tris(6-isocyanatohexyl)imidodicarbonic diamide, Me Et ketone oxime-blocked is a specialized, blocked polyurethane prepolymer designed for controlled reactivity in advanced coating and adhesive formulations. This compound matters for industrial manufacturers seeking to enhance product performance through delayed curing mechanisms, which improve application properties and shelf-life stability. It is primarily needed by formulators in the automotive, industrial maintenance coatings, and high-performance adhesive sectors, where precise cross-linking and durable film formation are critical.

Application

Two-component (2K) polyurethane coatings for automotive OEM and refinish applications.
High-solids and solvent-borne industrial maintenance paints for corrosion protection on metal substrates.
Blocked isocyanate crosslinkers in heat-curable adhesive and sealant systems.
Binder component for wire enamels and other electrical insulation materials.
Modifier for elastomers and composite materials requiring enhanced chemical and abrasion resistance.
Crosslinking agent in specialty textile and leather finishing coatings.

Basic Information


Product Name	Sulfurous acid, monosodium salt, polymer with 1,4-butanediol, 2-butene-1,4-diol, methyloxirane and N,N',2-tris(6-isocyanatohexyl)imidodicarbonic diamide, Me Et ketone oxime-blocked
CAS No.	129783-37-5
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Blocked polyisocyanate prepolymer; MEKO-blocked HDI trimer prepolymer; Oxime-blocked polyurethane polymer; Butanone oxime-blocked polyisocyanate; Blocked aliphatic polyisocyanate; HDI-based blocked curing agent; Polyurethane, Me Et ketoxime-blocked; Isocyanic acid, hexamethylene ester, polymer with 1,4-butanediol, 2-butene-1,4-diol, methyloxirane and monosodium sulfite, MEKO-blocked
EINECS	Contact for details

Quality Control

Our production of this blocked polyisocyanate adheres to strict quality management systems to ensure batch-to-batch consistency and performance reliability. Every lot undergoes comprehensive analysis, including measurement of blocked isocyanate content, viscosity, solids content, and color. Certificates of Analysis (COA) detailing all relevant specifications are provided with each shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. This material is hygroscopic (moisture-sensitive). Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep the container tightly sealed when not in use to prevent moisture absorption and premature reaction. Store away from heat, open flames, and incompatible materials such as strong bases, acids, and amines.

Specification

Item	Specification
Appearance	Clear, viscous liquid
Color (Gardner)	≤ 3
Solids Content	70 - 75%
Viscosity (25°C)	2000 - 5000 mPa·s
Blocked NCO Content	10.0 - 12.0 %
Specific Gravity (25°C)	1.05 - 1.15
Identification (IR)	Conforms