Description

1,3-Benzenedicarboxylic Acid, Polymer With Dimethyl 1,4-Benzenedicarboxylate And 1,2-Ethanediol is a high-performance copolyester resin, specifically a modified polyethylene terephthalate (PET) copolymer incorporating isophthalic acid units. This engineered polymer offers enhanced material properties, including improved clarity, thermal stability, and chemical resistance compared to standard PET. It is a critical raw material for manufacturers in the packaging, specialty films, and engineering plastics industries seeking to upgrade product performance and meet stringent application requirements.

Application

• High-Clarity Packaging Films: Used in the production of biaxially oriented films for food packaging, display films, and laminates where superior optical properties are required.
• Specialty Bottles and Containers: Serves as a key resin for blow-molded containers, particularly for hot-fill applications, due to its enhanced thermal stability and reduced crystallinity.
• Engineering Plastics and Fibers: Incorporated into compounded materials to improve toughness, dimensional stability, and dyeability for technical textile fibers and reinforced plastic components.
• Adhesives and Coatings: Acts as a polymeric base for high-performance solvent-based or hot-melt adhesives and protective coatings, offering excellent adhesion and chemical resistance.
• Barrier Layers in Multi-layer Packaging: Utilized in co-extrusion processes to create effective oxygen and moisture barrier layers in advanced packaging structures.

Basic Information

Product Name	1,3-Benzenedicarboxylic Acid, Polymer With Dimethyl 1,4-Benzenedicarboxylate And 1,2-Ethanediol
CAS No.	26006-30-4
Molecular Formula	(C10H8O4 · C10H10O4 · C2H6O2)x
Molecular Weight	Polymer - Contact for details
Synonyms	Poly(ethylene terephthalate-co-isophthalate); PETG Copolymer; Poly(oxy-1,2-ethanediyloxycarbonyl-1,4-phenylenecarbonyl-co-oxy-1,2-ethanediyloxycarbonyl-1,3-phenylenecarbonyl); Glycol-modified PET; IPA-modified PET; Copolyester of Terephthalic Acid, Isophthalic Acid, and Ethylene Glycol; Poly(ethylene glycol-co-cyclohexanedimethanol terephthalate-co-isophthalate) (related); Eastar® PETG (example trade name)
EINECS	Contact for details

Quality Control

Our production of this copolyester adheres to strict quality management systems to ensure batch-to-batch consistency for critical polymer properties like intrinsic viscosity (IV), color, and thermal characteristics. Each lot is tested against stringent internal specifications, and a comprehensive Certificate of Analysis (COA) detailing key parameters is provided with every shipment. We support compliance with relevant FDA and EU regulations for food contact materials where applicable.

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). Keep away from strong heat sources and open flames. The material is hygroscopic (moisture-sensitive); ensure original packaging is sealed after use to prevent moisture absorption, which can affect processing characteristics.

Specification

Item	Specification
Appearance	Clear pellets or granules
Intrinsic Viscosity (IV)	0.70 - 0.85 dL/g (Typical)
Color (L* value)	> 80
Melting Point (DSC)	210 - 230 °C
Acid Value	≤ 3.0 mg KOH/g
Moisture Content	≤ 0.1 %

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