Description

Polyoxy(methyl-1,2-ethanediyl), .alpha.-hydro-.omega.-hydroxy-, polymer with 1,1-methylenebis4-isocyanatobenzene and .alpha.,.alpha.-(1-methylethylidene)di-4,1-phenylenebis.omega.-hydroxypoly(oxy-1,2-ethanediyl) is a specialized polyurethane-polyether block copolymer designed for high-performance applications. This advanced polymer is engineered to deliver exceptional durability, flexibility, and chemical resistance, making it a critical component in demanding industrial formulations. It is primarily utilized by manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries seeking to enhance product performance and longevity.

Application

• High-Performance Coatings: Used as a key resin in industrial, automotive, and protective coatings for superior weatherability, abrasion resistance, and gloss retention.
• Advanced Adhesives & Sealants: Serves as a base polymer for structural adhesives, flexible sealants, and potting compounds requiring strong bonding and elasticity.
• Specialty Elastomers: Formulated into castable polyurethane elastomers for rollers, wheels, gaskets, and industrial parts demanding toughness and resilience.
• Composite Materials: Acts as a matrix or binder in fiber-reinforced composites and syntactic foams for the aerospace and marine sectors.
• Textile & Leather Finishing: Employed in coatings and finishes to provide durable, flexible, and water-resistant surfaces.
• Encapsulation & Potting: Used for protecting sensitive electronic components from moisture, vibration, and environmental stress.

Basic Information

Item	Details
Product Name	Polyoxy(methyl-1,2-ethanediyl), .alpha.-hydro-.omega.-hydroxy-, polymer with 1,1-methylenebis4-isocyanatobenzene and .alpha.,.alpha.-(1-methylethylidene)di-4,1-phenylenebis.omega.-hydroxypoly(oxy-1,2-ethanediyl)
CAS No.	129245-69-8
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Polyurethane-polyether block copolymer; Poly(oxy-1,2-ethanediyl), .alpha.-hydro-.omega.-hydroxy-, polymer with 1,1'-methylenebis[4-isocyanatobenzene] and .alpha.,.alpha.'-(1-methylethylidene)di-4,1-phenylene bis[.omega.-hydroxypoly(oxy-1,2-ethanediyl)]; MDI/PPG/Polyether Polyol Prepolymer; Aromatic polyether-based polyurethane prepolymer; Thermoplastic polyurethane (TPU) polyether type; CAS 129245-69-8
EINECS	Contact for details

Quality Control

Our production of this advanced polymer adheres to strict quality management systems, ensuring batch-to-batch consistency and performance reliability. Key parameters such as NCO content, viscosity, and hydroxyl value are rigorously monitored using advanced analytical techniques including titration, GPC, and FTIR. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with each shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (typically 15-25°C). Due to its hygroscopic (moisture-sensitive) nature, containers must be kept tightly sealed when not in use to prevent moisture absorption, which can affect product performance. Keep away from heat sources and incompatible materials.

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
Hydroxyl Value	Contact for details
Specific Gravity (25°C)	Contact for details
Moisture Content	< 0.05%

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