Description

Poly[oxy(methyl-1,2-ethanediyl)], .alpha.,.alpha.',.alpha.''-1,2,3-propanetriyltris[.omega.-hydroxy]-, polymer with 1,3-diisocyanatomethylbenzene, .alpha.-hydro-.omega.-hydroxypoly[oxy(methyl-1,2-ethanediyl)] and 1,1'-methylenebis[4-isocyanatobenzene] is a specialized polyurethane prepolymer or resin, engineered to deliver superior performance in demanding adhesive and coating formulations. This compound matters because it provides a critical balance of flexibility, chemical resistance, and strong adhesion to diverse substrates. It is primarily needed by manufacturers in the industrial adhesives, sealants, and high-performance coatings sectors seeking reliable raw materials for durable end-products.

Application

• High-Performance Industrial Adhesives: A key component in formulating structural and assembly adhesives for automotive, aerospace, and construction applications.
• Specialty Sealants and Caulks: Used to create flexible, moisture-curing sealants with excellent weatherability and bond strength.
• Protective and Decorative Coatings: Serves as a resin base for durable coatings on concrete, metal, and flooring that require abrasion and chemical resistance.
• Potting and Encapsulation Compounds: Employed in electronics and electrical applications to protect components from moisture, vibration, and environmental stress.
• Elastomer and Rubber Modification: Acts as a modifier to enhance the toughness, tear strength, and adhesion properties of various elastomeric systems.
• Composite Binders: Utilized as a matrix resin in fiber-reinforced plastics (FRP) and other composite materials.

Basic Information

Item	Details
Product Name	Poly[oxy(methyl-1,2-ethanediyl)], .alpha.,.alpha.',.alpha.''-1,2,3-propanetriyltris[.omega.-hydroxy]-, polymer with 1,3-diisocyanatomethylbenzene, .alpha.-hydro-.omega.-hydroxypoly[oxy(methyl-1,2-ethanediyl)] and 1,1'-methylenebis[4-isocyanatobenzene]
CAS No.	68833-81-8
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Polyurethane prepolymer based on TDI and MDI; Polyether polyol, propoxylated glycerol, polymer with toluene diisocyanate and diphenylmethane diisocyanate; Polyoxypropylene triol, polymer with TDI and MDI; MDI/TDI Polyurethane resin; Aromatic polyurethane prepolymer; Moisture-curable polyurethane resin; PU prepolymer adhesive resin; Poly(propylene oxide) triol, polymer with 2,4-TDI and 4,4'-MDI
EINECS	Contact for details

Quality Control

Our production of this polyurethane polymer adheres to strict quality management systems to ensure batch-to-batch consistency and performance reliability. Each lot undergoes comprehensive analysis for key parameters such as isocyanate (NCO) content, viscosity, and moisture content. Certificates of Analysis (COA) documenting these specifications are available upon request 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). Due to its hygroscopic (moisture-sensitive) nature, containers must be kept tightly sealed when not in use to prevent moisture ingress, which can prematurely react with the product. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Viscous liquid
Color (Gardner)	≤ 3
NCO Content (%)	Contact for details
Viscosity (cPs @ 25°C)	Contact for details
Moisture Content (%)	≤ 0.05
Specific Gravity (25°C)	Contact for details

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