Description

Polypropylene Glycol, Hexahydrophthalic Anhydride Polyester is a specialized, high-performance polyester polyol derived from hexahydrophthalic anhydride (HHPA) and polypropylene glycol (PPG). This compound is engineered to deliver exceptional chemical resistance, thermal stability, and mechanical properties in demanding industrial applications. It is a critical raw material for manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries, particularly for formulating high-quality, durable polyurethane systems.

Application

• High-Performance Polyurethane Coatings: Serves as a key polyol component in two-component (2K) polyurethane coatings for industrial, marine, and automotive applications, providing excellent gloss retention, chemical resistance, and weatherability.
• Adhesives and Sealants: Used in the formulation of structural adhesives and flexible sealants where strong bonding, durability, and resistance to hydrolysis and chemicals are required.
• Elastomers: A vital ingredient for casting and molding polyurethane elastomers used in rollers, wheels, and industrial parts that demand a combination of toughness and flexibility.
• Composite Materials: Acts as a reactive intermediate or modifier in fiber-reinforced plastic (FRP) composites and resin systems, enhancing interlaminar adhesion and overall composite performance.
• Electrical Encapsulation: Employed in potting and encapsulation compounds for electrical components, offering good dielectric properties and protection from environmental stress.

Basic Information

Product Name	Polypropylene Glycol, Hexahydrophthalic Anhydride Polyester
CAS No.	60806-75-9
Molecular Formula	Contact for details
Molecular Weight	Varies by grade (Contact for details)
Synonyms	HHPA-PPG Polyester; Hexahydrophthalic Anhydride-Polypropylene Glycol Polyester; Poly(oxy-1,2-ethanediyl), α-hydro-ω-hydroxy-, polymer with 1,3-isoenzofurandione, hexahydro-; Polyester polyol based on hexahydrophthalic anhydride and PPG; HHPA Polyol; Cyclohexane-1,2-dicarboxylic anhydride polypropylene glycol polyester; CAS 60806-75-9
EINECS	Contact for details

Quality Control

Our Polypropylene Glycol, Hexahydrophthalic Anhydride Polyester is produced under a stringent quality management system. Each batch undergoes rigorous analytical testing to ensure consistency in hydroxyl value, acid value, viscosity, and moisture content, meeting precise customer and application requirements. Certificates of Analysis (COA) are provided with every shipment, documenting key specifications and confirming compliance with agreed-upon parameters.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (typically 15-25°C). Keep away from heat sources and open flame. This material is hygroscopic (moisture-sensitive); ensure containers are sealed after use to prevent absorption of atmospheric moisture, which can affect product performance.

Specification

Item	Specification
Appearance	Clear, viscous liquid
Color (Gardner)	≤ 2
Hydroxyl Value (mg KOH/g)	As per grade (e.g., 100 - 300)
Acid Value (mg KOH/g)	≤ 2.0
Viscosity @ 25°C (cPs)	As per grade
Moisture Content (%)	≤ 0.1
Identification (IR)	Conforms

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