Description

1,4-Butanediol, Polymer With .Alpha.-Hydro-.Omega.-Hydroxypoly(Oxy-1,4-Butanediyl) And 1,1-Methylenebis4-Isocyanatocyclohexane is a specialized polyurethane prepolymer or polyurethane elastomer derived from a reaction involving poly(tetramethylene ether) glycol (PTMEG), 1,4-butanediol, and a hydrogenated MDI (methylene diphenyl diisocyanate) derivative. This compound matters as a high-performance, moisture-curable intermediate that offers excellent mechanical properties, hydrolytic stability, and low-temperature flexibility. It is primarily needed by manufacturers in the adhesives, sealants, coatings, and elastomers industries seeking to formulate durable, flexible polyurethane systems.

Application

• High-Performance Elastomers: Used as a key prepolymer component in the production of cast polyurethane elastomers for industrial wheels, rollers, and seals.
• Moisture-Curing Adhesives & Sealants: Serves as the reactive base for one-component, moisture-curing adhesives and sealants with strong bonding and flexibility.
• Protective & Flexible Coatings: Formulated into durable, abrasion-resistant, and chemical-resistant coatings for industrial flooring, pipelines, and marine applications.
• Thermoplastic Polyurethane (TPU) Modification: Acts as a modifier or chain extender to enhance the properties of TPUs used in films, cables, and hoses.
• Composite Binders: Employed as a binder matrix in composite materials, providing toughness and adhesion to fibers and fillers.
• Encapsulation & Potting Compounds: Used in electrical and electronic applications for potting and encapsulating components that require flexibility and environmental protection.

Basic Information

Product Name	1,4-Butanediol, Polymer With .Alpha.-Hydro-.Omega.-Hydroxypoly(Oxy-1,4-Butanediyl) And 1,1-Methylenebis4-Isocyanatocyclohexane
CAS No.	52292-20-3
Molecular Formula	(C4H10O2·C4H8O·C15H22N2O2)n
Molecular Weight	Polymer - Variable
Synonyms	Polyurethane prepolymer based on PTMEG, BDO, and H12MDI; Hydrogenated MDI-PTMEG prepolymer; Poly(tetramethylene ether) glycol, polymer with 1,4-butanediol and methylenebis(4-isocyanatocyclohexane); H12MDI/PTMEG polyurethane prepolymer; 4,4'-Methylenebis(cyclohexyl isocyanate) polymer with .alpha.-hydro-.omega.-hydroxypoly(oxy-1,4-butanediyl) and 1,4-butanediol; Polyurethane resin CAS 52292-20-3; Moisture-curable polyurethane prepolymer
EINECS	Contact for details

Quality Control

Our polyurethane prepolymers are manufactured under strict process controls to ensure batch-to-batch consistency and performance reliability. Quality is verified through comprehensive testing of key parameters such as NCO content, viscosity, and moisture content. A 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. This product is hygroscopic (moisture-sensitive) and must be stored under a dry, inert atmosphere (e.g., nitrogen blanket) to prevent premature curing and viscosity increase. Recommended storage temperature is between 15°C and 25°C (59°F and 77°F) in a cool, dry, well-ventilated area away from heat and moisture sources.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid
Identification (IR)	Conforms to structure
NCO Content	Contact for details
Viscosity @ 25°C	Contact for details
Moisture Content (Karl Fischer)	< 0.05%
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.