Description

Polyoxy(methyl-1,2-ethanediyl), .alpha.,.alpha.,.alpha.-1,2,3-propanetriyltris.omega.-hydroxy-, polymer with .alpha.-hydro-.omega.-hydroxypolyoxy(methyl-1,2-ethanediyl) and 1,1-methylenebis4-isocyanatobenzene is a specialized polyether-polyurethane block copolymer, designed to deliver exceptional performance as a reactive intermediate or functional additive. Its unique polymeric structure provides a valuable combination of flexibility, hydrophilicity, and sites for further chemical modification, making it a critical component for formulators seeking to enhance material properties. This high-purity polymer is essential for advanced applications in the pharmaceutical, personal care, and specialty coatings industries where precise chemical functionality and batch-to-batch consistency are paramount.

Application

• Pharmaceutical Excipient: Used as a solubilizer, bioavailability enhancer, or controlled-release matrix former in solid dosage forms and transdermal patches.
• Personal Care Formulations: Acts as a film-forming agent, hair fixative, or conditioning polymer in hair sprays, mousses, and skin care products.
• Specialty Coatings & Adhesives: Serves as a key polyol component in the synthesis of high-performance, flexible polyurethane coatings, sealants, and pressure-sensitive adhesives.
• Biomedical Materials: Utilized in the research and development of biocompatible hydrogels, drug-eluting scaffolds, and other medical device coatings.
• Industrial Additives: Functions as a dispersant, viscosity modifier, or compatibilizer in various chemical processing applications.

Basic Information

Product Name	Polyoxy(methyl-1,2-ethanediyl), .alpha.,.alpha.,.alpha.-1,2,3-propanetriyltris.omega.-hydroxy-, polymer with .alpha.-hydro-.omega.-hydroxypolyoxy(methyl-1,2-ethanediyl) and 1,1-methylenebis4-isocyanatobenzene
CAS No.	51447-37-1
Molecular Formula	Contact for details
Molecular Weight	Variable (Polymer)
Synonyms	Poly(oxy-1,2-ethanediyl), .alpha.,.alpha.,.alpha.-1,2,3-propanetriyltris[.omega.-hydroxy-, polymer with .alpha.-hydro-.omega.-hydroxypoly(oxy-1,2-ethanediyl) and methylenebis(4-isocyanatobenzene); Polyethylene glycol-polyurethane block copolymer; PEG-PU copolymer; Polyether urethane based on glycerol ethoxylate and MDI; Glycerol ethoxylate-MDI copolymer; Poly(ethylene oxide)-co-polyurethane; 1,1'-Methylenebis(4-isocyanatobenzene) polymer with .alpha.-hydro-.omega.-hydroxypoly(oxy-1,2-ethanediyl) and .alpha.,.alpha.,.alpha.-1,2,3-propanetriyltris[.omega.-hydroxypoly(oxy-1,2-ethanediyl)]
EINECS	Contact for details

Quality Control

Every batch of our polyether-polyurethane copolymer is manufactured and tested under a strict quality management system to ensure it meets the exacting standards required for pharmaceutical and high-performance industrial applications. We provide comprehensive Certificates of Analysis (COA) that detail critical parameters such as identity, assay, residual monomers, molecular weight distribution, and moisture content. Our quality commitment aligns with cGMP principles and relevant ICH guidelines, ensuring traceability and reliability for your most sensitive formulations.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); containers must be kept tightly sealed after opening to prevent moisture absorption, which can affect performance. Keep away from incompatible materials such as strong acids, bases, and oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white solid or viscous liquid
Identification (IR)	Conforms to reference spectrum
Assay (NCO Content or Hydroxyl Value)	As per grade requirement
Moisture (Karl Fischer)	≤ 1.0%
Residual Monomer (MDI)	≤ 0.1%
Molecular Weight (GPC)	As per grade requirement
Viscosity	Reported
Heavy Metals	≤ 20 ppm

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