Description

Polyoxy(Methyl-1,2-Ethanediyl), .Alpha.,.Alpha.,.Alpha.-1,2,3-Propanetriyltris.Omega.-Hydroxy-, Polymer With 1,1-Methylenebis4-Isocyanatocyclohexane is a specialized polyether-polyurethane block copolymer derived from a polyol and an aliphatic diisocyanate. This engineered polymer is valued for its unique combination of flexibility, hydrolytic stability, and compatibility, making it a critical performance additive and intermediate. It is primarily sought by formulators in the coatings, adhesives, sealants, and elastomers (CASE) industries, as well as in advanced material science for creating tailored polymer networks with specific mechanical and chemical resistance properties.

Application

• High-Performance Coatings & Paints: Acts as a reactive modifier or crosslinker in polyurethane coatings, enhancing flexibility, abrasion resistance, and weatherability for automotive, industrial, and protective finishes.
• Adhesives & Sealants Formulation: Used as a key polyol component in moisture-cure or two-component polyurethane adhesives and sealants, providing excellent adhesion, elasticity, and durability.
• Elastomer Production: Serves as a prepolymer or chain extender in the synthesis of cast, thermoplastic, or millable polyurethane elastomers for gaskets, wheels, and industrial parts.
• Composite Materials: Incorporated as a matrix resin or toughening agent in polymer composites to improve impact strength and interfacial bonding with fibers or fillers.
• Specialty Resins & Intermediates: Functions as a versatile macromonomer or building block for synthesizing custom polymers with targeted properties for niche industrial applications.
• Textile & Leather Finishing: Utilized in coatings and binders for textiles and synthetic leather to impart softness, water resistance, and durability.

Basic Information

Item	Details
Product Name	Polyoxy(Methyl-1,2-Ethanediyl), .Alpha.,.Alpha.,.Alpha.-1,2,3-Propanetriyltris.Omega.-Hydroxy-, Polymer With 1,1-Methylenebis4-Isocyanatocyclohexane
CAS No.	68132-85-4
Molecular Formula	Contact for details
Molecular Weight	Contact for details (Polymer)
Synonyms	Poly(oxy-1,2-ethanediyl), α,α',α''-1,2,3-propanetriyltris[ω-hydroxy-, polymer with 1,1'-methylenebis[4-isocyanatocyclohexane]; Polyoxyethylene glycerol ether polymer with methylene bis(4-cyclohexyl isocyanate); Polyethylene glycol glycerol ether polymer with H12MDI; Polyether triol-H12MDI prepolymer; Aliphatic polyurethane prepolymer based on PEG and H12MDI; Poly(ethylene oxide) triol-H12MDI adduct; H12MDI-terminated polyether polyol
EINECS	Contact for details

Quality Control

Our production of this polyurethane prepolymer adheres to strict quality management protocols to ensure batch-to-batch consistency and performance reliability. Key parameters such as NCO content, viscosity, hydroxyl value, and residual monomer levels are rigorously monitored. A comprehensive Certificate of Analysis (COA) detailing all relevant specifications is provided with each shipment to support your quality assurance and regulatory 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). This product is hygroscopic (moisture-sensitive) and must be kept under a dry inert atmosphere (e.g., nitrogen) to prevent premature reaction and degradation. Keep away from heat, sparks, and open flame.

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 (mg KOH/g)	Contact for details
Water Content	≤ 0.05%
Specific Gravity @ 25°C	Contact for details
Residual Monomer (H12MDI)	≤ 0.1%

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