Description

1,3-Benzenedicarboxylic Acid, Polymer With (E)-2-Butenedioic Acid, 1,2-Ethanediol And 2,2'-Oxybis[Ethanol] CAS NO 28133-55-3 is a specialized polyester copolymer designed for high-performance applications. This polymer is valued for its excellent film-forming properties, chemical resistance, and thermal stability, making it a critical component in advanced material formulations. It is primarily sought by manufacturers in the coatings, adhesives, and specialty plastics industries seeking to enhance product durability and performance.

Application

• Industrial Coatings and Paints: Used as a resin binder to provide superior adhesion, flexibility, and corrosion resistance in protective and decorative coatings.
• Adhesives and Sealants: Serves as a key polymer backbone in formulating high-strength, durable adhesives for construction, automotive, and packaging applications.
• Specialty Plastics and Composites: Incorporated as a modifying agent to improve the impact resistance, weatherability, and mechanical properties of engineering plastics.
• Textile and Fiber Treatments: Applied as a coating or sizing agent to enhance fiber strength, dye affinity, and resistance to environmental factors.
• Ink Formulations: Utilized in the production of high-quality printing inks to improve gloss, rub resistance, and substrate adhesion.
• Electrical Encapsulation: Employed in potting compounds and encapsulants to protect sensitive electronic components due to its good insulating properties.

Basic Information

Product Name	1,3-Benzenedicarboxylic Acid, Polymer With (E)-2-Butenedioic Acid, 1,2-Ethanediol And 2,2'-Oxybis[Ethanol]
CAS No.	28133-55-3
Molecular Formula	(C8H6O4 • C4H4O4 • C2H6O2 • C4H10O3)x
Molecular Weight	Polymer - Variable
Synonyms	Poly(1,3-benzenedicarboxylic acid-co-fumaric acid-co-ethylene glycol-co-diethylene glycol); Isophthalic Acid-Fumaric Acid-Ethylene Glycol-Diethylene Glycol Copolymer; Polyester resin from isophthalic acid, fumaric acid, EG, and DEG; IPA/FA/EG/DEG Copolymer; Unsaturated Polyester Resin (UPR) based on Isophthalic Acid; Isophthalic Polyester Resin; 1,3-Benzenedicarboxylic acid polymer with 2-butenedioic acid (E)-, 1,2-ethanediol and 2,2'-oxybis[ethanol]
EINECS	Contact for details

Quality Control

Our production of this polyester copolymer adheres to strict quality management systems. Each batch undergoes comprehensive analysis to ensure consistency in key parameters such as acid value, viscosity, and molecular weight distribution. 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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed when not in use to prevent moisture absorption, which can affect product performance.

Specification

Item	Specification
Appearance	White to off-white granules or solid
Acid Value	15 - 30 mg KOH/g
Viscosity (at 25°C)	2000 - 6000 mPa·s (as 70% in styrene)
Gel Time (at 25°C)	8 - 20 min
Volatile Content	≤ 1.0 %

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