Description

1,2-Benzenedicarboxylic Acid, Dimethyl Ester, Polymer With 1,4-Butanediol, Dimethyl 1,4-Benzenedicarboxylate And α-Hydro-ω-Hydroxypoly( Oxy-1,4-Butanediyl) is a high-performance thermoplastic polyester elastomer (TPC-ET) known for its excellent combination of flexibility, durability, and chemical resistance. This engineered polymer is valued for its ability to replace traditional materials like rubber and PVC in demanding applications, offering superior mechanical properties and processing ease. It is essential for manufacturers in the automotive, wire & cable, industrial hose, and consumer goods sectors seeking advanced material solutions.

Application

• Automotive Components: Used in air ducts, seals, gaskets, and constant velocity joint (CVJ) boots due to its oil and heat resistance.
• Wire & Cable Jacketing: Provides excellent insulation, flexibility, and resistance to environmental stress cracking for power and data cables.
• Industrial & Hydraulic Hose: Serves as a flexible, pressure-resistant tube and cover material resistant to oils, fuels, and chemicals.
• Consumer Goods & Sporting Equipment: Applied in grips, seals, and flexible components requiring a soft touch and durability.
• Medical Device Tubing: Utilized for its clarity, flexibility, and biocompatibility in certain non-implantable applications.
• Polymer Modification: Acts as a impact modifier and compatibilizer to enhance the toughness and flexibility of other engineering plastics.

Basic Information

Product Name	1,2-Benzenedicarboxylic Acid, Dimethyl Ester, Polymer With 1,4-Butanediol, Dimethyl 1,4-Benzenedicarboxylate And α-Hydro-ω-Hydroxypoly( Oxy-1,4-Butanediyl)
CAS No.	37359-70-9
Molecular Formula	(C10H10O4 · C4H10O2 · C10H10O4 · C4H10O2)n (Polymer)
Molecular Weight	Polymer - Not Applicable
Synonyms	Thermoplastic Copolyester Elastomer (TPC-ET); Poly(ether-ester) elastomer; Poly(butylene terephthalate)-block-poly(tetramethylene oxide) glycol; PBT-PTMG; Copolyesterether; TPEE; Hytrel® (common trade name); Arnitel® (common trade name)
EINECS	Contact for details

Quality Control

Our thermoplastic copolyester elastomer is manufactured under a stringent quality management system to ensure batch-to-batch consistency and performance reliability. Each lot is tested against key parameters including melt flow rate, hardness (Shore D), tensile strength, and elongation at break to meet precise customer and industry specifications. Certificates of Analysis (COA) detailing these results are provided with every shipment, and our production facilities adhere to ISO 9001 standards.

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 acids, strong bases, and organic solvents. As the polymer pellets may be hygroscopic (moisture-sensitive), it is recommended to keep the original packaging sealed until use to prevent moisture absorption, which can affect processing characteristics.

Specification

Item	Specification
Appearance	White or off-white pellets
Shore Hardness (D Scale)	40D - 72D (Grade Dependent)
Melting Point (DSC)	150°C - 210°C
Tensile Strength	20 - 45 MPa
Elongation at Break	300% - 700%
Melt Flow Rate (MFR)	5 - 30 g/10 min (Grade & Temp Dependent)
Moisture Content	< 0.1 %

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