Description

Methyloxirane Polymer With Oxirane, 1,2-Ethanediylbis(Nitrilodialkylene) Ether, Reaction Products With 1,6-Diisocyanatohexane, Sodium Bisulfite-Blocked is a specialized, blocked polyurethane prepolymer designed for controlled reactivity and enhanced shelf stability. This product is engineered to provide a latent curing agent that activates upon heating, making it a critical component in formulating high-performance coatings, adhesives, and sealants. It is essential for manufacturers in the automotive, industrial maintenance, and specialty chemical sectors seeking to improve product consistency and processing safety.

Application

• One-Component Polyurethane Coatings: As a blocked isocyanate crosslinker for high-durability industrial, automotive, and coil coatings that cure at elevated temperatures.
• Adhesive and Sealant Formulations: Provides stable, moisture-resistant prepolymer systems for bonding and sealing applications requiring controlled cure profiles.
• Elastomer and Rubber Modification: Used to enhance the mechanical properties, chemical resistance, and weatherability of specialty elastomers.
• Textile and Leather Finishing: Imparts water repellency, flexibility, and abrasion resistance to treated fabrics and leather goods.
• Fiber-Reinforced Composites: Acts as a matrix resin or sizing agent to improve interfacial adhesion between fibers and polymer matrices.
• Industrial Binders: Serves as a key component in foundry sand binders, abrasive wheel binders, and other composite material systems.

Basic Information

Product Name	Methyloxirane Polymer With Oxirane, 1,2-Ethanediylbis(Nitrilodialkylene) Ether, Reaction Products With 1,6-Diisocyanatohexane, Sodium Bisulfite-Blocked
CAS No.	126696-99-9
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Blocked Polyurethane Prepolymer; Sodium Bisulfite-Blocked HDI Prepolymer; Blocked Aliphatic Polyisocyanate; Hexamethylene Diisocyanate (HDI) Blocked Prepolymer; Polyether Polyol Blocked Isocyanate; Thermally Latent Curing Agent; Blocked Polyisocyanate Adduct; Reactive Polyurethane Intermediate
EINECS	Contact for details

Quality Control

Our production of Methyloxirane Polymer With Oxirane, 1,2-Ethanediylbis(Nitrilodialkylene) Ether, Reaction Products With 1,6-Diisocyanatohexane, Sodium Bisulfite-Blocked adheres to a stringent quality management system to ensure batch-to-batch consistency and performance reliability. Each lot is analyzed for critical parameters including blocked isocyanate content, viscosity, solids content, and deblocking temperature. Comprehensive Certificates of Analysis (COA) documenting all test results are provided and can be tailored to meet specific customer or regulatory requirements.

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 / 59-77°F). This product is hygroscopic (moisture-sensitive). Prolonged exposure to atmospheric moisture or elevated temperatures should be avoided to prevent premature deblocking and viscosity increase.

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
Deblocking Temperature	Contact for details
Density (at 25°C)	Contact for details

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