Description

Oxirane, Methyl-, Polymer With Oxirane, Ether With 2,2-Oxybisethanol (2:1), Butyl Ether is a specialized polyether polyol derivative, commonly known as a butyl-capped ethylene oxide/propylene oxide block copolymer. This chemical is engineered to offer a unique balance of hydrophilicity, surfactant properties, and reactivity, making it a valuable intermediate and performance additive. It is primarily utilized in the formulation of high-performance polyurethanes, coatings, and industrial surfactants where controlled molecular architecture and terminal functionality are critical.

Application

• Polyurethane Systems: As a reactive polyol for flexible and rigid foams, elastomers, and adhesives, providing tailored hydrophile-lipophile balance (HLB) and crosslinking density.
• Coatings & Inks: As a dispersant, wetting agent, or rheology modifier in water-based and solvent-based formulations to improve pigment dispersion and film properties.
• Industrial Surfactants & Emulsifiers: Used in the production of nonionic surfactants for agricultural chemicals, textile processing, and metalworking fluids.
• Pharmaceutical & Cosmetic Excipients: As a solubilizer or carrier in topical formulations and drug delivery systems, subject to appropriate purity grades.
• Lubricant & Fuel Additives: As a component in synthetic lubricants and fuel additives to enhance detergency and stability.
• Chemical Intermediate: For further chemical modification to create custom surfactants, macromonomers, or crosslinkable polymers.

Basic Information

Product Name	Oxirane, Methyl-, Polymer With Oxirane, Ether With 2,2-Oxybisethanol (2:1), Butyl Ether
CAS No.	67989-16-6
Molecular Formula	Typically represented as (C3H6O)m-(C2H4O)n-C8H18O3 (Variable m, n)
Molecular Weight	Variable (Depends on the m/n ratio of EO/PO blocks)
Synonyms	Butyl-capped EO/PO block copolymer; Poly(oxy-1,2-ethanediyl), α-butyl-ω-hydroxy-, block polymer with poly(oxy-1,2-ethanediyl); Poly(propylene glycol)-block-poly(ethylene glycol)-butyl ether; EO/PO block copolymer butyl ether; PPG-PEG butyl ether; Alkoxylated butanol (EO/PO); Nonionic surfactant based on butanol ethoxylate/propoxylate; Polyether polyol, butyl-terminated.
EINECS	Contact for details

Quality Control

Our production of this polyether polyol adheres to strict quality management systems. Each batch is characterized for critical parameters including hydroxyl value, molecular weight distribution, viscosity, and water content to ensure consistency and performance. Certificates of Analysis (COA) detailing these specifications are provided with every shipment. We can supply grades suitable for industrial, cosmetic, or technical applications, with quality protocols aligned to ISO 9001 standards.

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 product is hygroscopic (moisture-sensitive). Keep away from strong oxidizing agents, strong acids, and strong bases to prevent degradation. Under these conditions, the product is typically stable for at least 24 months from the date of manufacture.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid
Identification (IR)	Conforms to structure
Hydroxyl Value (mg KOH/g)	As per grade (e.g., 25 - 120)
Viscosity @ 25°C (cP)	As per grade
Water Content	≤ 0.2 % (w/w)
pH (5% aqueous solution)	5.0 - 7.5
Cloud Point (1% aqueous)	As per grade
Molecular Weight (GPC)	As per grade (e.g., 1000 - 5000 Da)

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