Description

Oxirane, Methyl-, Polymer With Oxirane, Monobutylether, Polymer With 1,3-Diisocyanatobenzene CAS NO 68864-07-3 is a specialized polyether-polyurethane block copolymer, synthesized from propylene oxide, ethylene oxide, and a diisocyanate linker. This engineered polymer is valued for its unique combination of flexibility, hydrophilicity, and reactive terminal groups, making it a versatile performance additive and intermediate. It is primarily sought by formulators in the adhesives & sealants, coatings, and specialty elastomers industries seeking to enhance product durability and processing characteristics.

Application

• Adhesives & Sealants: Acts as a flexibilizer and toughening agent in polyurethane and epoxy-based formulations, improving impact resistance and adhesion to diverse substrates.
• Coatings & Inks: Used as a rheology modifier and dispersing aid in waterborne and solvent-based systems, contributing to film formation and stability.
• Elastomer Production: Serves as a key soft segment or chain extender in the synthesis of thermoplastic polyurethanes (TPU) and other specialty elastomers.
• Polymer Modification: Employed as an additive to modify the physical properties of base polymers, enhancing flexibility, hydrophilicity, or compatibility in blends.
• Reactive Intermediate: Utilized in further chemical synthesis where its hydroxyl or other terminal groups can be functionalized for custom polymer architectures.

Basic Information

Product Name	Oxirane, Methyl-, Polymer With Oxirane, Monobutylether, Polymer With 1,3-Diisocyanatobenzene
CAS No.	68864-07-3
Molecular Formula	Contact for details
Molecular Weight	Varies by grade (typically 1,000 - 10,000 g/mol)
Synonyms	Poly(propylene oxide)-block-poly(ethylene oxide) urethane; Polyether polyurethane block copolymer; PO/EO polyurethane; Propylene oxide-ethylene oxide copolymer terminated with diisocyanate; Polyoxypropylene polyoxyethylene urethane polymer; Block copolymer of propylene oxide and ethylene oxide with MDI; Polyether urethane diol; Reactive polyether polyol
EINECS	Contact for details

Quality Control

Every batch of our polyether-polyurethane copolymer is produced under a strict quality management system. We ensure consistency in critical parameters such as hydroxyl value, molecular weight distribution, and viscosity. A comprehensive Certificate of Analysis (COA) detailing assay, identity, and impurity profiles is provided with each shipment to guarantee it meets your specific formulation requirements.

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). This product is hygroscopic (moisture-sensitive) and should be kept under a dry inert atmosphere (e.g., nitrogen) for long-term storage to prevent degradation. Keep away from strong acids, bases, and oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid
Identification (IR)	Conforms to structure
Hydroxyl Value (mg KOH/g)	Contact for details
Viscosity @ 25°C (cP)	Contact for details
Water Content (KF)	≤ 0.1%
Color (APHA)	≤ 100

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