Description

1,4-Benzenedicarboxylic Acid, Dimethyl Ester, Polymer With 1,4-Butanediol And .Alpha.-Hydro-.Omega.-Hydroxypoly(Oxy-1,4-Butanediyl) is a high-performance thermoplastic polyester elastomer (TPEE) copolymer, known for its exceptional balance of flexibility, strength, and chemical resistance. This material is engineered to deliver superior durability and processing stability in demanding applications. It is a critical raw material for manufacturers in the automotive, wire & cable, industrial hose, and consumer goods sectors seeking to enhance product performance and longevity.

Application

• Automotive Components: Used in CVJ boots, air ducts, seals, and tubing due to its excellent fatigue resistance and wide service temperature range.
• Wire & Cable Insulation: Provides superior abrasion resistance, flexibility, and environmental stress crack resistance for data cables, fiber optic sheathing, and industrial cables.
• Industrial Hose & Tubing: Ideal for hydraulic hoses, pneumatic tubes, and fuel lines where resistance to oils, greases, and chemicals is paramount.
• Consumer Goods & Sporting Equipment: Employed in high-performance grips, seals, and flexible components for electronics, tools, and athletic gear.
• Medical Device Components: Suitable for specific non-implantable device parts requiring sterilization compatibility and durability.
• Polymer Modification: Acts as a compatibilizer or toughening agent to improve the impact strength and flexibility of other engineering plastics like PBT or PET.

Basic Information

Product Name	1,4-Benzenedicarboxylic Acid, Dimethyl Ester, Polymer With 1,4-Butanediol And .Alpha.-Hydro-.Omega.-Hydroxypoly(Oxy-1,4-Butanediyl)
CAS No.	9078-71-1
Molecular Formula	(C12H12O4·C4H10O2·C4H8O2)x
Molecular Weight	Polymer - Variable
Synonyms	Poly(butylene terephthalate)-block-poly(tetramethylene ether) glycol; PBT-PTMEG copolymer; Thermoplastic Polyester Elastomer (TPEE); Poly(oxy-1,4-butanediyloxycarbonyl-1,4-phenylenecarbonyl); Butylene Terephthalate/Tetramethylene Ether Glycol Terephthalate Copolymer; TPEE Copolyester Elastomer; Hytrel®-type Polymer (Generic); Poly(tetramethylene ether glycol)-b-poly(butylene terephthalate)
EINECS	Contact for details

Quality Control

Our thermoplastic polyester elastomer is manufactured under a strict quality management system. Each batch undergoes rigorous testing for key parameters including intrinsic viscosity, melt flow index, hardness (Shore D), and thermal properties (melting point, glass transition temperature) to ensure consistent performance and lot-to-lot uniformity. Certificates of Analysis (COA) detailing these specifications are provided with every shipment. Our production adheres to ISO 9001 standards, and the material can be supplied in grades compliant with FDA and EU regulations for specific applications upon request.

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. This polymer is hygroscopic (moisture-sensitive); original packaging should be kept sealed to prevent moisture absorption, which can affect processing characteristics.

Specification

Item	Specification
Appearance	White or off-white pellets/granules
Identification (IR)	Conforms to standard
Shore D Hardness	40D - 72D (Grade Dependent)
Melting Point (DSC)	150°C - 220°C (Grade Dependent)
Tensile Strength	20 - 50 MPa (Grade Dependent)
Elongation at Break	300% - 700% (Grade Dependent)
Melt Flow Rate (MFR)	5 - 30 g/10min (Grade Dependent)
Moisture Content (KF)	< 0.1 %

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