Description

1,6-Hexanediol, Polymer With 1,4-Butanediol, .Alpha.-Hydro-.Omega.-Hydroxypolyoxy(Methyl-1,2-Ethanediyl) And 1,1-Methylenebis4-Isocyanatobenzene, Block is a specialized polyurethane prepolymer or block copolymer. This engineered material is valued for its ability to impart enhanced mechanical properties, chemical resistance, and tailored flexibility to final formulations. It is primarily sought by manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries, as well as in advanced material science for creating high-performance polymers.

Application

• High-Performance Coatings: Used as a key resin component in polyurethane coatings for industrial, automotive, and marine applications requiring durability and weatherability.
• Advanced Adhesives & Sealants: Serves as a base polymer for formulating structural adhesives, potting compounds, and flexible sealants with strong bonding and elastic properties.
• Elastomer Production: Employed in the synthesis of thermoplastic polyurethanes (TPU) and cast elastomers for parts requiring a balance of toughness and flexibility.
• Composite Materials: Acts as a matrix resin or modifier in fiber-reinforced composites to improve impact resistance and interfacial adhesion.
• Specialty Inks: Utilized in the formulation of flexible and abrasion-resistant printing inks for packaging and textiles.
• Medical Device Coatings: Potential use in biocompatible coatings for medical devices, subject to appropriate purity grades and regulatory compliance.

Basic Information

Product Name	1,6-Hexanediol, Polymer With 1,4-Butanediol, .Alpha.-Hydro-.Omega.-Hydroxypolyoxy(Methyl-1,2-Ethanediyl) And 1,1-Methylenebis4-Isocyanatobenzene, Block
CAS No.	111842-82-1
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Polyurethane prepolymer based on 1,6-hexanediol, 1,4-butanediol, PEG, and MDI; Block copolymer of 1,6-hexanediol, 1,4-butanediol, poly(ethylene glycol), and 4,4'-methylenebis(phenyl isocyanate); MDI-PEG-Butanediol-Hexanediol copolymer; Poly(oxy-1,2-ethanediyl), .alpha.-hydro-.omega.-hydroxy-, polymer with 1,4-butanediol, 1,6-hexanediol and 1,1'-methylenebis[4-isocyanatobenzene]; PEG/MDI/Butanediol/Hexanediol copolymer; Thermoplastic polyurethane (TPU) prepolymer; Hydroxyl-terminated polyurethane block copolymer
EINECS	Contact for details

Quality Control

Our production of this polymer adheres to strict quality management systems. Each batch is characterized for critical parameters such as hydroxyl value, isocyanate content (NCO%), viscosity, and molecular weight distribution to ensure consistent performance in downstream applications. Comprehensive Certificates of Analysis (COA) documenting these specifications are provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. This material is hygroscopic (moisture-sensitive). Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep the container tightly sealed under a dry, inert atmosphere (e.g., nitrogen) to prevent moisture absorption and premature reaction.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid or solid
Identification (IR)	Conforms to structure
Hydroxyl Value (mg KOH/g)	Contact for details
Isocyanate Content (NCO%)	Contact for details
Viscosity (at 25°C)	Contact for details
Moisture Content (Karl Fischer)	< 0.05%
Color (Gardner)	≤ 2

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