Description

Phthalic Anhydride, Ethylene Glycol, Trimethylolpropane Polymer is a synthetic polyester polyol resin formed by the condensation polymerization of its namesake monomers. This versatile polymer is a crucial intermediate in the production of high-performance coatings, adhesives, and elastomers, offering excellent cross-linking density and durability. It is primarily sought after by manufacturers in the paint and coatings, polyurethane, and specialty chemical industries for formulating products that require robust chemical resistance and mechanical strength.

Application

• Primary Raw Material for Alkyd Resins: A key component in the synthesis of high-quality, durable alkyd resins used in industrial and decorative paints and varnishes.
• Polyurethane Systems: Serves as a polyol component in the production of polyurethane foams, coatings, adhesives, and sealants, contributing to hardness and thermal stability.
• Saturated Polyester Resins: Used in the formulation of saturated polyester resins for coil coatings, can coatings, and other applications requiring excellent weatherability and flexibility.
• Plasticizers and Modifiers: Acts as a modifier or intermediate in the production of specialized plasticizers and polymer additives to enhance specific material properties.
• Electrical Insulating Varnishes: Employed in the manufacture of wire enamels and insulating varnishes due to its good electrical properties and thermal endurance.
• Adhesives and Sealants: Provides a strong, resilient backbone in the formulation of high-performance structural and industrial adhesives.

Basic Information

Product Name	Phthalic Anhydride, Ethylene Glycol, Trimethylolpropane Polymer
CAS No.	31533-27-4
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Poly(phthalic anhydride-co-ethylene glycol-co-trimethylolpropane); Phthalic Anhydride/Ethylene Glycol/Trimethylolpropane Copolymer; TMP-EG Phthalate Polyol; Alkyd Resin Precursor; Polyester Polyol Resin; PA/EG/TMP Polymer; Trimethylolpropane Ethylene Glycol Phthalate Polymer
EINECS	Contact for details

Quality Control

Our Phthalic Anhydride, Ethylene Glycol, Trimethylolpropane Polymer is manufactured under a stringent quality management system. Each batch undergoes rigorous analytical testing to ensure consistent properties such as hydroxyl value, acid value, viscosity, and color. Certificates of Analysis (COA) documenting these specifications are 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 (15-25°C). This material is hygroscopic (moisture-sensitive); containers must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product performance.

Specification

Item	Specification
Appearance	Viscous liquid to solid resin
Color (Gardner)	≤ 3
Acid Value (mg KOH/g)	≤ 5.0
Hydroxyl Value (mg KOH/g)	Contact for details
Viscosity (at 25°C)	Contact for details
Water Content	≤ 0.2%

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