Description

1,4-Butanediol, Polymer With 1,3-Diisocyanatomethylbenzene, α-Hydro-ω-Hydroxypoly( Oxy-1,4-Butanediyl) And 1,1'-Methylenebis[4-Isocyanatocyclohexane] CAS NO 87257-38-3 is a high-performance, multi-component polyurethane prepolymer or polymer. This specialized material is engineered to deliver exceptional durability, flexibility, and chemical resistance in demanding industrial applications. It is primarily sought by manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries for formulating advanced polyurethane systems.

Application

• High-Performance Coatings: Used as a key binder in industrial and protective coatings requiring superior abrasion, chemical, and weather resistance.
• Advanced Adhesives & Sealants: Serves as a base polymer for formulating structural adhesives and flexible sealants with strong bonding and elastic properties.
• Specialty Elastomers: A critical component in the production of cast, thermoplastic, or millable polyurethane elastomers for gaskets, rollers, and wear parts.
• Composite Materials: Employed as a matrix resin or modifier in fiber-reinforced composites to enhance toughness and interfacial adhesion.
• Waterproofing Membranes: Used in formulations for liquid-applied or sheet membranes in construction and infrastructure projects.
• Industrial Rollers & Wheels: Provides the necessary resilience and load-bearing capacity for manufacturing industrial rollers, tires, and wheels.

Basic Information

Product Name	1,4-Butanediol, Polymer With 1,3-Diisocyanatomethylbenzene, α-Hydro-ω-Hydroxypoly( Oxy-1,4-Butanediyl) And 1,1'-Methylenebis[4-Isocyanatocyclohexane]
CAS No.	87257-38-3
Molecular Formula	Contact for details
Molecular Weight	Variable (Polymer)
Synonyms	Polyurethane prepolymer based on 1,4-butanediol, TMXDI, PTMEG, and H12MDI; TMXDI/PTMEG/H12MDI/1,4-BDO copolymer; Aliphatic/Aromatic polyurethane polymer; Copolymer of 1,4-butanediol, m-tetramethylxylene diisocyanate, poly(tetramethylene ether) glycol, and 4,4'-methylenebis(cyclohexyl isocyanate); PU prepolymer from H12MDI, PTMEG, 1,4-BDO, and TMXDI; Multicomponent polyurethane resin CAS 87257-38-3
EINECS	Contact for details

Quality Control

Our production of this advanced polymer adheres to strict quality management systems to ensure batch-to-batch consistency and performance reliability. Key parameters such as NCO content, viscosity, and equivalent weight are rigorously monitored. A comprehensive Certificate of Analysis (COA) detailing all relevant specifications is provided with each 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 (typically 15-25°C). This product is moisture-sensitive (hygroscopic) and should be kept under a dry inert atmosphere (e.g., nitrogen) to prevent premature reaction and degradation. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid
NCO Content	Contact for details
Viscosity @ 25°C	Contact for details
Equivalent Weight	Contact for details
Specific Gravity	Contact for details
Moisture Content	< 0.05%

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