Description

2-Butene-1,4-Diol, Polymer With 1,3-Diisocyanatomethylbenzene And Methyloxirane, Bisulfited, Bu Alc.-Blocked is a specialized, blocked polyurethane prepolymer designed for controlled reactivity and enhanced shelf stability. This product matters for formulators seeking to create high-performance coatings, adhesives, and sealants with predictable curing profiles and excellent final material properties. It is primarily needed by manufacturers in the industrial coatings, automotive, and specialty polymer sectors who require a stable, one-component system that cures upon exposure to heat or atmospheric moisture.

Application

• One-Component Polyurethane Coatings: Used as a blocked isocyanate crosslinker in high-performance industrial and automotive topcoats that cure at elevated temperatures.
• Adhesives and Sealants: Serves as a key component in moisture-curing or heat-activated adhesive formulations, providing strong bonding and flexibility.
• Elastomer and Rubber Modification: Employed to enhance the properties of synthetic rubbers and elastomers, improving abrasion resistance and durability.
• Textile and Leather Finishes: Utilized in coatings for textiles and leather to impart water resistance, gloss, and a protective finish.
• Wire and Cable Insulation: Acts as a crosslinking agent in insulation materials, improving thermal and chemical resistance.
• Composite Materials: Incorporated into polymer matrices for composites to optimize interfacial adhesion and mechanical strength.

Basic Information

Product Name	2-Butene-1,4-Diol, Polymer With 1,3-Diisocyanatomethylbenzene And Methyloxirane, Bisulfited, Bu Alc.-Blocked
CAS No.	111849-97-9
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Blocked Polyurethane Prepolymer; Bisulfite-Blocked Polyisocyanate; TDI/Butenediol/Propylene Oxide Polymer, Bisulfite-Blocked; Butyl Alcohol-Blocked Polyisocyanate Adduct; Polyurethane Crosslinker, Blocked; 1,3-Diisocyanatomethylbenzene Polymer with 2-Butene-1,4-Diol and Methyloxirane, Bisulfited, Bu Alc.-Blocked; TDI-based Blocked Prepolymer
EINECS	Contact for details

Quality Control

Our 2-Butene-1,4-Diol, Polymer With 1,3-Diisocyanatomethylbenzene And Methyloxirane, Bisulfited, Bu Alc.-Blocked is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure consistent performance, including measurement of blocked isocyanate content, viscosity, solids content, and color. Certificates of Analysis (COA) documenting all relevant specifications are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from heat, sparks, and open flame. This material is moisture-sensitive; ensure containers are sealed to prevent exposure to atmospheric humidity.

Specification

Item	Specification
Appearance	Clear to slightly hazy liquid
Color (Gardner)	≤ 4
Solids Content	Contact for details
Viscosity (at 25°C)	Contact for details
Blocked NCO Content	Contact for details
Specific Gravity (25°C)	Contact for details

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