Description

1,2,3-Propanetriol, Polymer With 2,4-Diisocyanato-1-Methylbenzene, Methyloxirane And Oxirane, Nonylphenol-Blocked is a specialized, nonylphenol-blocked polyurethane prepolymer derived from glycerol, toluene diisocyanate (TDI), and propylene/ethylene oxides. This chemistry is engineered to provide a moisture-curable, high-performance resin with excellent adhesion, flexibility, and chemical resistance for demanding industrial applications. It is a critical raw material for formulators in the coatings, adhesives, sealants, and elastomers (CASE) industries seeking to enhance product durability and performance.

Application

• High-Performance Coatings: Used as a binder or crosslinker in moisture-cure polyurethane coatings for industrial maintenance, marine, and concrete floor finishes.
• Adhesives & Sealants: Serves as a key prepolymer in the formulation of one-component, moisture-curing polyurethane adhesives and sealants with strong bonding and elastic properties.
• Elastomer Production: Acts as a precursor for casting and molding polyurethane elastomers used in gaskets, rollers, and industrial parts.
• Composite Binders: Employed in binding agents for composite materials, including foundry sand cores and abrasive tools.
• Textile & Leather Finishing: Utilized in coatings and finishes to provide durable, water-resistant, and flexible surfaces.
• Potting & Encapsulation: Suitable for electrical potting compounds where moisture resistance and durability are required.

Basic Information

Product Name	1,2,3-Propanetriol, Polymer With 2,4-Diisocyanato-1-Methylbenzene, Methyloxirane And Oxirane, Nonylphenol-Blocked
CAS No.	119012-31-6
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Nonylphenol-blocked Polyurethane Prepolymer; TDI-based Polyurethane Prepolymer, Nonylphenol-capped; Glycerol-Propylene Oxide-Ethylene Oxide-TDI Adduct, Nonylphenol-blocked; Blocked Polyurethane Resin; Moisture-curable Polyurethane Prepolymer; CAS 119012-31-6; Nonylphenol terminated polyether polyurethane prepolymer
EINECS	Contact for details

Quality Control

Our production of this blocked polyurethane prepolymer adheres to stringent quality protocols to ensure batch-to-batch consistency and performance reliability. Key parameters such as NCO content (prior to blocking), viscosity, solids content, and blocking agent level are rigorously monitored. A comprehensive Certificate of Analysis (COA) detailing all specifications 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 by the manufacturer (typically between 15-25°C). This product is hygroscopic (moisture-sensitive); containers must be kept sealed to prevent contact with atmospheric moisture, which can initiate premature curing. Keep away from heat sources and open flames.

Specification

Item	Specification
Appearance	Viscous liquid
Color (Gardner)	≤ 4
Solids Content	Contact for details
Viscosity (at 25°C)	Contact for details
Blocked NCO Content	Contact for details
Specific Gravity (at 25°C)	Contact for details
Flash Point	> 100 °C

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