Description

Phthalic Anhydride, Diethylene Glycol, Glycerol Polyester is a synthetic polyester resin derived from the polycondensation of phthalic anhydride, diethylene glycol, and glycerol. This versatile polymer is valued for its excellent film-forming properties, adhesion, and chemical resistance, making it a critical component in high-performance industrial formulations. It is primarily sought after by manufacturers in the coatings, adhesives, and specialty plastics industries seeking durable and reliable polymeric materials.

Application

• Primary resin component in alkyd coatings for industrial and architectural paints.
• Binder in adhesives and sealants requiring strong adhesion and flexibility.
• Modifying agent for plasticizers and unsaturated polyester resins to enhance properties.
• Intermediate in the synthesis of specialized polyester polyols for polyurethane applications.
• Film-forming agent in printing inks and protective varnishes.
• Component in electrical insulation materials and encapsulants.

Basic Information

Product Name	Phthalic Anhydride, Diethylene Glycol, Glycerol Polyester
CAS No.	27026-61-5
Molecular Formula	(C8H4O3 • C4H10O3 • C3H8O3)n
Molecular Weight	Polymer - Variable
Synonyms	Glycerol Phthalic Anhydride Diethylene Glycol Polyester; Poly(glycerol phthalate-co-diethylene glycol phthalate); Alkyd Resin Precursor; Phthalic Anhydride-Diethylene Glycol-Glycerol Copolymer; PA/DEG/GLY Polyester; Phthalic Glycerol Diethylene Glycol Polyester; Polyester Resin 27026-61-5
EINECS	Contact for details

Quality Control

Our Phthalic Anhydride, Diethylene Glycol, Glycerol Polyester is manufactured under a rigorous quality management system. Each batch is tested to ensure consistent performance characteristics such as acid value, hydroxyl value, viscosity, and color. A comprehensive Certificate of Analysis (COA) detailing these specifications is provided with every shipment to guarantee compliance with your technical requirements.

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); ensure containers are kept tightly sealed to prevent moisture absorption, which can affect product properties.

Specification

Item	Specification
Appearance	Viscous liquid to solid resin
Color (Gardner)	≤ 4
Acid Value (mg KOH/g)	≤ 10
Hydroxyl Value (mg KOH/g)	Reported per grade
Viscosity (at 25°C)	Reported per grade
Solids Content	≥ 99%

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