Description

2-Oxepanone, Polymer With 1,4-Butanediol, 2,2-Dimethyl-1,3-Propanediol And 1,1'-Methylenebis(4-Isocyanatobenzene) CAS NO 87091-56-3 is a high-performance, segmented polyurethane or polyurethane-urea copolymer. This engineered polymer is valued for its unique combination of mechanical strength, chemical resistance, and processing versatility derived from its specific monomer composition. It is essential for formulators and manufacturers seeking to create durable, high-quality polyurethane systems for demanding industrial and specialty applications.

Application

• High-Performance Coatings and Adhesives: Used as a key resin component in solvent-borne or high-solid coatings requiring excellent abrasion resistance, flexibility, and adhesion to various substrates.
• Elastomers and Thermoplastic Polyurethanes (TPU): Serves as a base polymer for manufacturing castable or extrudable elastomers with enhanced hydrolytic stability and low-temperature performance.
• Specialty Sealants and Binders: Formulated into sealants for construction, automotive, or aerospace applications where durability and environmental resistance are critical.
• Industrial and Composite Materials: Acts as a matrix or binder in composite materials, fiber-reinforced plastics, and industrial parts requiring a robust polymer backbone.
• Textile and Leather Finishing: Employed in coatings and finishes for synthetic leather, waterproof textiles, and other technical fabrics to improve durability and feel.
• Wire and Cable Insulation: Used in formulations for flexible, flame-retardant, or high-temperature resistant insulating and jacketing materials.

Basic Information

Product Name	2-Oxepanone, Polymer With 1,4-Butanediol, 2,2-Dimethyl-1,3-Propanediol And 1,1'-Methylenebis(4-Isocyanatobenzene)
CAS No.	87091-56-3
Molecular Formula	(C6H10O2 · C4H10O2 · C5H12O2 · C15H10N2O2)n
Molecular Weight	Polymer - Contact for details
Synonyms	Poly(ε-caprolactone-co-butylene adipate-co-neopentyl glycol adipate) urethane; Polycaprolactone-polyadipate-urethane copolymer; Polyurethane based on ε-caprolactone, 1,4-butanediol, neopentyl glycol, and MDI; MDI-based polyester urethane; Thermoplastic polyester urethane elastomer; PCL-based polyurethane; Adipic acid/ε-caprolactone/1,4-butanediol/neopentyl glycol/MDI copolymer
EINECS	Contact for details

Quality Control

Our production of 2-Oxepanone, Polymer With 1,4-Butanediol, 2,2-Dimethyl-1,3-Propanediol And 1,1'-Methylenebis(4-Isocyanatobenzene) adheres to stringent quality management protocols. Each batch is characterized for critical parameters including molecular weight distribution, viscosity, isocyanate content (NCO%), and thermal properties to ensure batch-to-batch consistency and performance reliability. Certificates of Analysis (COA) detailing these specifications are provided and available upon request.

Storage

Preserve in a tightly closed container, protected from light and moisture. Store in a cool, dry, and well-ventilated area at room temperature (typically 15-25°C). Keep away from heat sources, open flames, and incompatible materials such as strong acids, bases, and oxidizing agents. Under these conditions, the product is stable for the period indicated on the label.

Specification

Item	Specification
Appearance	Pellets, granules, or clear to pale yellow solid
Identification (IR)	Conforms to structure
Viscosity (Solution or Melt)	As per grade
Isocyanate Content (NCO%)	As per grade
Glass Transition Temperature (Tg)	As per grade
Melting Point / Softening Point	As per grade
Moisture Content	< 0.1%
Solubility	Soluble in selected polar aprotic solvents (e.g., DMF, DMAc)

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