Description

1,3-Butanediol, Polymer With 1,1'-Methylenebis[Isocyanatobenzene], 2,2'-Oxybis[Ethanol] And 1,2-Propanediol is a specialized polyurethane prepolymer or polyol derivative, engineered for high-performance applications requiring tailored chemical and physical properties. This compound is valued for its versatility as a reactive intermediate, offering formulators control over final product characteristics such as flexibility, adhesion, and chemical resistance. It is primarily utilized by manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries, as well as in advanced material synthesis.

Application

• Polyurethane Systems: A key building block for formulating specialized polyurethane coatings, adhesives, sealants, and elastomers (CASE).
• High-Performance Coatings: Used in industrial and protective coatings that demand excellent durability, chemical resistance, and weatherability.
• Adhesive & Sealant Formulations: Serves as a reactive component to enhance adhesion strength, flexibility, and longevity in bonding applications.
• Elastomer Production: Employed in the synthesis of custom polyurethane elastomers for gaskets, rollers, and impact-absorbing components.
• Composite Materials: Acts as a modifier or cross-linking agent in polymer composites to improve mechanical properties.
• Specialty Resins: Utilized in the development of advanced resin systems for encapsulation, potting, or molding.

Basic Information

Product Name	1,3-Butanediol, Polymer With 1,1'-Methylenebis[Isocyanatobenzene], 2,2'-Oxybis[Ethanol] And 1,2-Propanediol
CAS No.	155662-82-1
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Polyurethane prepolymer based on 1,3-butanediol, MDI, and diols; Poly(oxy-1,2-ethanediyl), α-hydro-ω-hydroxy-, polymer with 1,1'-methylenebis[4-isocyanatobenzene], 1,3-butanediol and 1,2-propanediol; 1,3-Butanediol / MDI / Diethylene Glycol / Propylene Glycol copolymer; MDI-based polyol adduct; 4,4'-Methylenebis(phenyl isocyanate) polymer with 1,3-butanediol, diethylene glycol, and propylene glycol; Polyurethane polyol; CAS 155662-82-1
EINECS	Contact for details

Quality Control

Our products undergo rigorous quality testing to ensure compliance with industry standards. Each batch is controlled against stringent specifications for parameters such as NCO content, hydroxyl value, viscosity, and moisture content to guarantee batch-to-batch consistency and performance. Certificates of Analysis (COA) detailing these results are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); containers must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product performance.

Specification

Item	Specification
Appearance	Viscous liquid to semi-solid
Color (Gardner)	≤ 3
NCO Content	Contact for details
Hydroxyl Value (mg KOH/g)	Contact for details
Viscosity @ 25°C (cPs)	Contact for details
Moisture (Karl Fischer)	≤ 0.1%
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.