Description

2-Oxepanone, Polymer With 2,2-Dimethyl-1,3-Propanediol And 1,1'-Methylenebis[4-Isocyanatobenzene] CAS NO 59330-00-6 is a specialized polyurethane prepolymer or resin derived from ε-caprolactone, neopentyl glycol, and MDI. This engineered polymer is valued for its ability to impart enhanced flexibility, hydrolytic stability, and excellent weatherability to final formulations. It is primarily sought after by manufacturers in the coatings, adhesives, and elastomers industries seeking to improve product performance and durability.

Application

• High-Performance Coatings: Used as a key component in polyurethane coatings for automotive, industrial, and marine applications requiring excellent gloss retention and resistance to chemicals and weathering.
• Elastomers and Sealants: Serves as a prepolymer in the production of flexible, durable polyurethane elastomers, gaskets, and sealants with good low-temperature properties.
• Adhesives and Binders: Incorporated into structural and laminating adhesives to enhance bond strength, flexibility, and moisture resistance.
• Composite Materials: Used as a matrix resin or modifier in fiber-reinforced composites to improve toughness and interlaminate adhesion.
• Wire and Cable Insulation: Applied in specialty potting compounds and insulating materials that demand flexibility and long-term stability.
• Textile and Leather Finishes: Utilized in coatings for synthetic leather and technical textiles to provide a soft feel and durable, flexible finish.

Basic Information

Product Name	2-Oxepanone, Polymer With 2,2-Dimethyl-1,3-Propanediol And 1,1'-Methylenebis[4-Isocyanatobenzene]
CAS No.	59330-00-6
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Poly(ε-caprolactone-co-neopentyl glycol-co-MDI); Caprolactone-Neopentyl Glycol-MDI Polymer; Polyurethane Prepolymer from ε-Caprolactone, Neopentyl Glycol, and MDI; MDI-capped PCL-NPG Polyol; 4,4'-Methylenebis(phenyl isocyanate) polymer with 2,2-dimethyl-1,3-propanediol and 2-oxepanone; Poly[[imino[(4-methyl-1,3-phenylene)imino[1,6-hexanediyliminocarbonyl(2-oxo-1,3-propanediyl)carbonyl]]]-co-[imino[1,6-hexanediyliminocarbonyloxy(2-oxo-1,3-propanediyl)oxycarbonyl]]]; Isocyanate-terminated poly(caprolactone-co-neopentyl glycol)
EINECS	Contact for details

Quality Control

Our production of this polyurethane polymer adheres to strict quality management systems to ensure batch-to-batch consistency and performance. Key parameters such as NCO content, viscosity, and hydroxyl value are rigorously monitored. A comprehensive Certificate of Analysis (COA) detailing assay, physical properties, and impurity profiles is provided with each shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed, moisture-proof container, protected from light. Store in a cool, dry, and well-ventilated area at temperatures recommended for polyurethane prepolymers, typically between 15°C and 25°C. Keep away from heat, sparks, and open flame. Due to the presence of isocyanate groups, protect from moisture to prevent premature curing.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid or solid
Identification (IR)	Conforms to structure
NCO Content	Contact for details
Viscosity	Contact for details
Hydroxyl Value	Contact for details
Solid Content	Contact for details
Color (Gardner)	≤ 3
Moisture (Karl Fischer)	≤ 0.05%

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