Description

Polytetramethylene Glycol, Isophoronediisocyanate, Dimethylolpropionic Acid, Isophoronediamine Polymer is a high-performance, water-dispersible polyurethane prepolymer, widely recognized by its CAS registry number 70682-60-9. This specialized polymer is engineered to provide exceptional durability, flexibility, and chemical resistance, making it a critical component in advanced coating and adhesive formulations. It is primarily sought after by manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries, as well as in textile and leather finishing, where its unique properties enhance product performance and longevity.

Application

• Waterborne Polyurethane Dispersions (PUDs): Serves as a key raw material for formulating high-quality, environmentally friendly PUDs used in industrial and decorative coatings.
• High-Performance Coatings: Used in the production of flexible, abrasion-resistant, and chemical-resistant coatings for plastics, metals, textiles, and synthetic leather.
• Adhesives and Sealants: Imparts excellent adhesion, cohesion, and elasticity to solvent-free or low-VOC adhesive and sealant systems.
• Elastomers and Binders: Acts as a prepolymer for manufacturing tough, resilient polyurethane elastomers and binders for non-woven fabrics and composites.
• Textile and Leather Finishing: Provides durable, soft-hand finishes and protective layers for synthetic leather, fabrics, and other substrates.
• Industrial and Maintenance Coatings: Formulated into coatings that require a balance of flexibility and toughness for challenging environments.

Basic Information

Product Name	Polytetramethylene Glycol, Isophoronediisocyanate, Dimethylolpropionic Acid, Isophoronediamine Polymer
CAS No.	70682-60-9
Molecular Formula	Contact for details
Molecular Weight	Varies by grade and polymerization degree
Synonyms	Polyurethane prepolymer based on PTMG, IPDI, DMPA, and IPDA; Water-dispersible polyurethane; Anionic polyurethane dispersion prepolymer; IPDI/DMPA-based PU prepolymer; CAS 70682-60-9; Poly(tetramethylene ether glycol)-co-isophorone diisocyanate-co-dimethylolpropionic acid-co-isophorone diamine; Carboxylated polyurethane oligomer
EINECS	Contact for details

Quality Control

Our production of this polyurethane prepolymer adheres to strict quality management systems. Each batch undergoes rigorous analytical testing to ensure consistent performance characteristics such as acid value, NCO content, viscosity, and solids content. Certificates of Analysis (COA) detailing these specifications are provided and 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 (typically 15-25°C). This material is moisture-sensitive; keep the container tightly sealed to prevent absorption of atmospheric moisture, which can affect product performance.

Specification

Item	Specification
Appearance	Viscous liquid to solid (color varies)
Solid Content	Contact for details
Acid Value	Contact for details
NCO Content	Contact for details
Viscosity (at 25°C)	Contact for details
Solvent	Typically solvent-free or in defined cosolvent

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