Description

1,3-Butanediol, Polymer With 1,3-Diisocyanatomethylbenzene And .Alpha.-Hydro-.Omega.-Hydroxypoly(Oxy-1,4-Butanediyl) is a specialized polyurethane prepolymer or segmented copolymer, representing a high-performance material engineered for demanding industrial applications. This compound is valued for its ability to impart enhanced mechanical properties, chemical resistance, and tailored flexibility to final polymer 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 durable, functional polymers.

Application

• High-Performance Coatings & Paints: As a key resin component for industrial, automotive, and protective coatings requiring excellent adhesion, abrasion resistance, and weatherability.
• Specialty Adhesives & Sealants: Used in formulating polyurethane-based adhesives and sealants that demand strong bonding, flexibility, and resistance to chemicals and environmental stress.
• Elastomer & Rubber Manufacturing: Serves as a prepolymer for producing castable polyurethane elastomers used in wheels, rollers, gaskets, and impact-absorbing components.
• Composite Materials: Acts as a matrix resin or modifier in fiber-reinforced plastics (FRP) and other composite systems to improve toughness and interlayer adhesion.
• Textile & Leather Finishing: Employed in coatings for textiles and synthetic leather to provide durable, flexible, and water-resistant finishes.
• Industrial Binders & Encapsulants: Utilized in potting compounds, encapsulants, and binders for electronics or construction materials where durable polymer properties are critical.

Basic Information

Item	Information
Product Name	1,3-Butanediol, Polymer With 1,3-Diisocyanatomethylbenzene And .Alpha.-Hydro-.Omega.-Hydroxypoly(Oxy-1,4-Butanediyl)
CAS No.	65605-51-8
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Poly(oxy-1,4-butanediyl), α-hydro-ω-hydroxy-, polymer with 1,3-diisocyanatomethylbenzene and 1,3-butanediol; Poly(tetramethylene ether glycol)-based polyurethane prepolymer; PTMEG/MDI/1,3-BDO copolymer; Polyurethane prepolymer based on poly(tetrahydrofuran), MDI, and 1,3-butanediol; α-Hydro-ω-hydroxypoly(oxy-1,4-butanediyl) polymer with 1,3-diisocyanatomethylbenzene and 1,3-butanediol; Poly(tetrahydrofuran) polyurethane resin; MDI/PTMG/1,3-BG copolymer; 4,4'-MDI/PTMO/1,3-Butanediol polymer
EINECS	Contact for details

Quality Control

Our production of this polymer adheres to strict quality management protocols to ensure batch-to-batch consistency and performance reliability. Key parameters such as NCO content, viscosity, molecular weight distribution, and residual monomer levels are rigorously monitored. A comprehensive Certificate of Analysis (COA) detailing all relevant specifications is provided with each shipment to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C / 59-77°F). This product is hygroscopic (moisture-sensitive). Keep the container tightly sealed under a dry inert atmosphere (e.g., nitrogen) to prevent moisture absorption and premature reaction. Isolate from strong oxidizing agents, acids, and bases.

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
Specific Gravity (25°C)	Contact for details
Moisture Content (Karl Fischer)	< 0.05%
Residual Monomer (HPLC)	< 0.1%

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