Description

Isophthalate Copolymer CAS NO 24938-04-3 is a high-performance polymer synthesized from isophthalic acid and other co-monomers, valued for its excellent thermal stability, chemical resistance, and mechanical properties. This copolymer is engineered to provide superior durability and performance in demanding industrial environments. It is a critical material for manufacturers in the coatings, adhesives, engineering plastics, and specialty fiber industries seeking to enhance product longevity and functionality.

Application

• High-Performance Coatings and Paints: Used as a resin to formulate durable industrial, automotive, and marine coatings that offer excellent weatherability, gloss retention, and chemical resistance.
• Engineering Plastics and Composites: Serves as a key component in the production of reinforced plastics and composite materials, providing enhanced strength, heat resistance, and dimensional stability.
• Adhesives and Sealants: Imparts strong bonding characteristics, thermal stability, and flexibility to advanced adhesive formulations for construction, automotive, and aerospace applications.
• Specialty Fibers and Films: Utilized in the manufacture of high-tenacity fibers and biaxially oriented films for technical textiles, packaging, and electrical insulation.
• Powder Coatings: Acts as a primary resin in thermosetting powder coatings, delivering a high-quality, durable finish for metal substrates in appliances and architectural applications.
• Can and Coil Coatings: Provides essential corrosion resistance and formability in coatings for food/beverage containers and pre-coated metal coils.

Basic Information

Product Name	Isophthalate Copolymer
CAS No.	24938-04-3
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Poly(isophthalate copolymer); Isophthalic Acid Copolymer; IPA Copolymer; Polyester resin based on isophthalic acid; Copolymer of isophthalic acid; 1,3-Benzenedicarboxylic acid polymer; Isophthalate-based polyester; Terphthalic/Isophthalic Copolyester
EINECS	Contact for details

Quality Control

Our Isophthalate Copolymer is manufactured under a stringent quality management system. Each batch undergoes rigorous analytical testing to ensure consistency in key parameters such as acid value, hydroxyl value, viscosity, glass transition temperature (Tg), and color. Certificates of Analysis (COA) documenting these specifications are available upon request, providing full traceability and compliance assurance for your quality protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong heat sources and open flames. Under these conditions, the product has a typical shelf life of 24 months from the date of manufacture.

Specification

Item	Specification
Appearance	White to off-white pellets or powder
Acid Value	≤ 5 mg KOH/g
Hydroxyl Value	Contact for details
Viscosity (at 25°C)	Contact for details
Glass Transition Temperature (Tg)	Contact for details
Color (Gardner)	≤ 3
Moisture Content	≤ 0.5%

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