Description

1,4-Benzenedicarboxylic Acid Polymer With 1,4-Butanediol, Hexanedioic Acid And 1,6-Hexanediol CAS NO 58901-62-5 is a high-performance thermoplastic copolyester elastomer (TPC-ET) known for its excellent balance of flexibility, durability, and chemical resistance. This engineered polymer is critical for manufacturers requiring materials that can withstand demanding mechanical and environmental conditions. It is primarily sought by the automotive, industrial hose, wire & cable, and consumer goods industries for applications demanding resilience and long-term performance.

Application

• Automotive Components: Used in air ducts, bellows, seals, and constant-velocity joint boots due to its flexibility and resistance to oils and greases.
• Industrial Hose & Tubing: Ideal for hydraulic hoses, pneumatic tubing, and fuel lines where chemical resistance and pressure resilience are paramount.
• Wire & Cable Jacketing: Provides excellent insulation, flexibility, and durability for cables in demanding environments.
• Consumer Goods: Employed in sporting goods, tool grips, and flexible components requiring a soft touch and impact resistance.
• Medical Device Components: Suitable for certain non-implantable device parts where biocompatibility and sterilizability are required.
• Industrial Belts & Seals: Used in conveyor belts and gaskets for its abrasion resistance and dimensional stability.

Basic Information

Product Name	1,4-Benzenedicarboxylic Acid Polymer With 1,4-Butanediol, Hexanedioic Acid And 1,6-Hexanediol
CAS No.	58901-62-5
Molecular Formula	(C12H12O4·C4H10O2·C6H10O4·C6H14O2)n
Molecular Weight	Polymer - Variable
Synonyms	Poly(butylene terephthalate)-block-poly(tetramethylene adipate) glycol; PBT-PTMG; Thermoplastic Copolyester Elastomer (TPC-ET); Poly(oxy-1,4-butanediyloxycarbonyl-1,4-phenylenecarbonyl)-block-poly(oxy-1,6-hexanediyloxycarbonyl-1,6-hexanediylcarbonyl); Copolyester of Terephthalic Acid, Adipic Acid, 1,4-Butanediol, and 1,6-Hexanediol; PTMG-modified PBT; Poly(tetramethylene ether glycol)-b-poly(butylene terephthalate); Elastomeric Copolyester
EINECS	Contact for details

Quality Control

Our thermoplastic copolyester elastomer is manufactured under a strict quality management system. Each batch is tested against key performance parameters including intrinsic viscosity, melt flow index, and mechanical properties to ensure consistency and reliability. Certificates of Analysis (COA) detailing lot-specific results are provided with every shipment. We support compliance with relevant industry standards, including ISO 9001 and FDA regulations for specific grades 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 oxidizing agents, strong acids, and strong bases. The material is hygroscopic (moisture-sensitive); ensure containers are sealed when not in use to prevent moisture absorption, which can affect processing characteristics.

Specification

Item	Specification
Appearance	Pellet, Colorless to off-white
Identification (IR)	Conforms to standard
Intrinsic Viscosity (dl/g)	1.2 - 2.0 (Grade dependent)
Melting Point (DSC)	150 - 210 °C
Hardness (Shore D)	30 - 75
Tensile Strength	15 - 45 MPa
Elongation at Break	300 - 700 %
Moisture Content (KF)	< 0.1 %

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