Description

1,-Propanediol, 2(Or 3)-(2-Propenyloxy)-, Polymer With .Alpha.-Hydro-.Omega.-Hydroxypoly(Oxy-1,4-Butanediyl) And 1,1-Methylenebis4-Isocyanatobenzene CAS NO 56060-75-4 is a specialized polyurethane prepolymer or polymer derived from a reaction involving a propanediol derivative and MDI (4,4'-methylenebis(phenyl isocyanate)). This product is valued for its ability to impart enhanced flexibility, adhesion, and chemical resistance when used as a reactive intermediate in advanced material formulations. It is primarily sought by manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries, as well as in the production of specialty polymers and composites requiring tailored performance properties.

Application

• High-Performance Coatings: As a key component in polyurethane-based protective and decorative coatings for industrial, automotive, and marine applications.
• Adhesives & Sealants: Used to formulate flexible, durable, and moisture-curing adhesives and sealants with strong bonding characteristics.
• Elastomer Production: Serves as a prepolymer in the manufacture of castable and thermoplastic polyurethane elastomers for gaskets, wheels, and industrial parts.
• Composite Materials: Acts as a matrix resin or modifier in fiber-reinforced composites to improve toughness and interlayer adhesion.
• Potting & Encapsulation Compounds: Employed in electronic and electrical applications where resilient, protective encapsulation is required.
• Binder Systems: Utilized as a reactive binder in foundry sands, abrasives, and other consolidated particulate materials.
• Textile & Leather Finishes: Imparts durable, flexible, and water-resistant finishes to synthetic fabrics and leather goods.

Basic Information

Product Name	1,-Propanediol, 2(Or 3)-(2-Propenyloxy)-, Polymer With .Alpha.-Hydro-.Omega.-Hydroxypoly(Oxy-1,4-Butanediyl) And 1,1-Methylenebis4-Isocyanatobenzene
CAS No.	56060-75-4
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Poly[oxy(methyl-1,2-ethanediyl)], α-hydro-ω-hydroxy-, polymer with 2-(2-propenyloxy)-1,3-propanediol and 1,1'-methylenebis[4-isocyanatobenzene]; Polyurethane prepolymer based on MDI and poly(tetramethylene ether) glycol (PTMEG) derivative; MDI-PTMEG-allyl glycidyl ether polymer; 4,4'-MDI polymer with poly(tetramethylene ether) glycol and allylated propanediol; Polyether-based polyurethane prepolymer, allyl functionalized; Reactive polyurethane polymer, CAS 56060-75-4.
EINECS	Contact for details

Quality Control

Our production of this polyurethane polymer adheres to strict quality management protocols to ensure batch-to-batch consistency and performance reliability. Key parameters such as NCO content, viscosity, and residual monomer levels are rigorously monitored. A comprehensive Certificate of Analysis (COA) detailing specific test results is provided with each shipment 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 temperatures recommended for polyurethane prepolymers, typically between 15°C and 25°C. This product is moisture-sensitive; containers must be kept sealed under a dry atmosphere (e.g., under dry nitrogen) to prevent premature reaction and gelation. Keep away from strong bases and incompatible organic solvents.

Specification

Item	Specification
Appearance	Viscous liquid
Color (Gardner)	≤ 3
NCO Content	Contact for details
Viscosity @ 25°C	Contact for details
Specific Gravity @ 25°C	Contact for details
Moisture (Karl Fischer)	≤ 0.05%
Residual Monomer (MDI)	≤ 0.5%

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