Description

1,3-Benzenedicarboxylic Acid, Polymer With 1,4-Benzenedicarboxylic Acid, 1,4-Butanediol And 1,6-Hexanediol CAS NO 58901-63-6 is a high-performance, copolyester-based thermoplastic polymer. This material is engineered to offer a superior balance of mechanical strength, chemical resistance, and processing flexibility for demanding industrial applications. It is primarily utilized in the production of specialty coatings, adhesives, and engineered plastic components where durability and performance are critical.

Application

• Thermoplastic Polyester Elastomers (TPEE): As a key raw material for manufacturing flexible yet durable TPEEs used in automotive parts, industrial hoses, and cable sheathing.
• High-Performance Coatings: Formulation of powder coatings and solvent-based coatings that require excellent weatherability, chemical resistance, and adhesion for architectural and industrial finishes.
• Specialty Adhesives and Sealants: Serves as a polymeric backbone in hot-melt and reactive adhesives, providing strong bonding and elasticity for construction and assembly applications.
• Engineering Plastics Modification: Used as a modifier or compatibilizer to enhance the toughness, flexibility, and impact resistance of rigid engineering plastics like PBT and PET.
• Fiber and Film Production: Manufacture of specialty fibers and films that benefit from its thermal stability and mechanical properties, applicable in technical textiles and packaging.
• 3D Printing Filaments: A base polymer for advanced fused deposition modeling (FDM) filaments, offering good layer adhesion and mechanical performance for functional prototypes.

Basic Information

Product Name	1,3-Benzenedicarboxylic Acid, Polymer With 1,4-Benzenedicarboxylic Acid, 1,4-Butanediol And 1,6-Hexanediol
CAS No.	58901-63-6
Molecular Formula	(C8H6O4 · C8H6O4 · C4H10O2 · C6H14O2)n
Molecular Weight	Polymer - Variable
Synonyms	Poly(1,4-butylene/1,6-hexylene isophthalate-co-terephthalate); Copolyester of Isophthalic Acid, Terephthalic Acid, 1,4-Butanediol, and 1,6-Hexanediol; PBHTIT Copolyester; Isophthalic Acid-Terephthalic Acid-Butanediol-Hexanediol Copolymer; Poly(butylene/hexylene isophthalate-co-terephthalate); 1,3/1,4-Benzenedicarboxylic acid polymer with butanediol and hexanediol; Butanediol/Hexanediol/Isophthalic Acid/Terephthalic Acid Copolymer
EINECS	Contact for details

Quality Control

Our production of this copolyester adheres to strict quality management systems to ensure batch-to-batch consistency and performance reliability. Key parameters such as intrinsic viscosity, acid value, glass transition temperature (Tg), and melting point are rigorously controlled. Certificates of Analysis (COA) detailing these specifications are provided with each shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (typically 15-25°C). This polymer is hygroscopic (moisture-sensitive); keep the original packaging sealed to prevent moisture absorption, which can affect processing and final product properties.

Specification

Item	Specification
Appearance	White to off-white pellets or granules
Intrinsic Viscosity (IV)	0.6 - 1.2 dL/g (Typical)
Acid Value	≤ 5.0 mg KOH/g
Melting Point (DSC)	160 - 210 °C
Glass Transition Temp (Tg)	20 - 60 °C
Moisture Content	≤ 0.1 %
Identification (IR)	Conforms

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