Description

1,3-Benzenedicarboxylic Acid, Polymer With 1,4-Benzenedicarboxylic Acid, 1,4-Cyclohexanedimethanol, 2,2-Dimethyl-1,3-Propanediol And Hexanedioic Acid CAS NO 87871-70-3 is a high-performance, amorphous thermoplastic copolyester. This engineered polymer is valued for its exceptional combination of clarity, toughness, and chemical resistance, making it a superior material for demanding applications. It is primarily sought by manufacturers in the packaging, consumer goods, and specialty film industries for creating durable, transparent products.

Application

• High-Clarity Packaging: Used for producing bottles, containers, and clamshells for food, cosmetics, and medical devices where product visibility and impact resistance are critical.
• Specialty Films and Sheets: Serves as a base material for protective overlays, graphic arts, and glazing applications requiring weatherability and dimensional stability.
• Consumer Electronics Components: Employed in the manufacture of durable housings, covers, and internal components that demand a balance of aesthetic appeal and structural integrity.
• Medical Device Housings: Suitable for non-implantable medical equipment casings due to its clarity, sterilizability (via EtO, gamma radiation), and chemical resistance.
• Automotive Interior Parts: Used in components like trim, lenses, and covers that require resistance to UV light, cleaning agents, and scratching.
• Optical Lenses and Light Guides: Utilized in lower-power optical applications and light-diffusing elements owing to its excellent light transmission properties.

Basic Information

Product Name	1,3-Benzenedicarboxylic Acid, Polymer With 1,4-Benzenedicarboxylic Acid, 1,4-Cyclohexanedimethanol, 2,2-Dimethyl-1,3-Propanediol And Hexanedioic Acid
CAS No.	87871-70-3
Molecular Formula	(C8H6O4 · C8H6O4 · C8H16O2 · C5H12O2 · C6H10O4)n
Molecular Weight	Polymer - Contact for details
Synonyms	Poly(1,4-cyclohexylenedimethylene-co-2,2-dimethyl-1,3-propylene terephthalate/isophthalate/adipate); PCTA Copolyester; Cyclohexanedimethanol/Terephthalic Acid/Isophthalic Acid Copolymer; CHDM-modified PETG/PTA Copolymer; Glycol-modified Polycyclohexylene Terephthalate/Isophthalate/Adipate; Amorphous Copolyester (PCTA type); Tritan™ Copolymer (related class); Poly(cyclohexylene dimethylene terephthalate/isophthalate/adipate) with Neopentyl Glycol
EINECS	Contact for details

Quality Control

Our copolyester resin is manufactured under a strict quality management system. Each batch undergoes comprehensive testing for key parameters including intrinsic viscosity (IV), color, thermal properties (Tg), and hydrolytic stability to ensure consistent performance in downstream processing. Certificates of Analysis (COA) detailing lot-specific results are provided with every shipment.

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 heat sources and open flame. Prior to processing, the material should be dried according to standard procedures for amorphous polyesters to prevent hydrolysis.

Specification

Item	Specification
Appearance	Clear, amorphous pellets
Intrinsic Viscosity (IV)	0.65 - 0.85 dL/g
Glass Transition Temperature (Tg)	85 - 95 °C
Color (L* value)	> 85
Moisture Content	< 0.05 %
Identification (IR)	Conforms to standard

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