Description

Hexanedioic Acid, Polymer With 1,4-Butanediol, 1,2-Ethanediol And 1,1-Methylenebisisocyanatobenzene, 1-Octanol-Blocked is a specialized polyurethane prepolymer blocked with 1-octanol, designed for controlled reactivity and enhanced shelf stability. This product is engineered to provide a robust, cross-linked polymer network upon thermal deblocking, offering excellent mechanical properties and chemical resistance. It is a critical raw material for formulators in the coatings, adhesives, sealants, and elastomers (CASE) industries seeking high-performance, one-component systems.

Application

• High-Performance Industrial Coatings: Used as a cross-linking agent in powder coatings and coil coatings requiring durability, weatherability, and corrosion resistance.
• Automotive and Transportation Finishes: A key component in primer-surfacers and clear coats where thermal curing and excellent adhesion to metals and plastics are essential.
• Adhesives and Sealants: Serves as a backbone polymer for structural adhesives and elastic sealants in construction and assembly applications.
• Wire and Cable Insulation: Employed in the formulation of insulating and jacketing compounds that require thermal stability and flame retardancy.
• Textile and Leather Finishing: Used to create durable, flexible, and water-resistant coatings and binders for technical textiles and synthetic leather.
• Elastomer Manufacturing: Acts as a prepolymer for casting polyurethane elastomers used in rollers, wheels, and industrial parts.

Basic Information

Item	Details
Product Name	Hexanedioic Acid, Polymer With 1,4-Butanediol, 1,2-Ethanediol And 1,1-Methylenebisisocyanatobenzene, 1-Octanol-Blocked
CAS No.	111850-15-8
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Blocked Polyurethane Prepolymer; Octanol-Blocked Polyurethane Resin; Adipic Acid/Butanediol/Ethylene Glycol/MDI Polymer, Octanol-Blocked; Polyurethane Crosslinker; 1-Octanol blocked polyurethane; MDI-based blocked prepolymer; Thermosetting polyurethane resin; CAS 111850-15-8
EINECS	Contact for details

Quality Control

Our production of this blocked polyurethane prepolymer adheres to stringent quality management systems to ensure batch-to-batch consistency and performance reliability. Each lot is characterized for critical parameters including blocking agent content, deblocking temperature, viscosity, and NCO equivalent weight. A comprehensive Certificate of Analysis (COA) detailing these specifications is provided with every shipment to support your quality assurance protocols.

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 material is hygroscopic (moisture-sensitive); containers must be kept sealed to prevent moisture ingress, which can lead to premature reaction and gelation. Keep away from heat and open flame.

Specification

Item	Specification
Appearance	Pale yellow to amber viscous liquid or solid
Identification (IR)	Conforms to structure
Solid Content	Contact for details
Viscosity (at specified temp)	Contact for details
Deblocking Temperature	Contact for details
Blocked NCO Content	Contact for details
Acid Value	≤ 2.0 mg KOH/g
Moisture (Karl Fischer)	≤ 0.1 %

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