Description

1,3-Benzenedicarboxylic acid, dimethyl ester, polymer with 1,4-butanediol, dimethyl 1,4-benzenedicarboxylate and .alpha.-hydro-.omega.-hydroxypoly(oxy-1,4-butanediyl), block is a specialized thermoplastic copolyester elastomer (TPC-ET) designed for high-performance applications requiring a balance of flexibility, durability, and chemical resistance. This engineered polymer is valued for its excellent mechanical properties, including high tensile strength and resilience, which are maintained across a wide temperature range. It is a critical material for manufacturers in the automotive, industrial hose, wire & cable, and consumer goods sectors seeking advanced elastomeric solutions.

Application

• Automotive Components: Used in air ducts, seals, gaskets, and constant velocity joint (CVJ) boots due to its oil and heat resistance.
• Industrial Hose & Tubing: Ideal for hydraulic and pneumatic hoses, fuel lines, and industrial tubing requiring flexibility and chemical compatibility.
• Wire & Cable Jacketing: Provides durable, flexible, and abrasion-resistant insulation and sheathing for various cable types.
• Consumer Goods & Sporting Equipment: Employed in grips, seals, and flexible components for tools, appliances, and athletic gear.
• Medical Device Components: Suitable for non-implantable medical tubing and device parts where clarity, flexibility, and sterilizability are needed.
• Polymer Modification: Acts as a compatibilizer or impact modifier to enhance the toughness and flexibility of other engineering plastics.

Basic Information

Item	Details
Product Name	1,3-Benzenedicarboxylic acid, dimethyl ester, polymer with 1,4-butanediol, dimethyl 1,4-benzenedicarboxylate and .alpha.-hydro-.omega.-hydroxypoly(oxy-1,4-butanediyl), block
CAS No.	107811-95-0
Molecular Formula	Contact for details
Molecular Weight	Variable (Polymer)
Synonyms	Poly(ether-ester) elastomer; Thermoplastic Copolyester Elastomer (TPC-ET); Poly(butylene terephthalate)-block-poly(tetramethylene oxide) glycol; PBT-PTMG block copolymer; Copolyester ether; TPEE; Poly(tetramethylene ether glycol)-b-poly(butylene terephthalate); Hytrel®-type polymer (generic)
EINECS	Contact for details

Quality Control

Our production of this thermoplastic copolyester elastomer adheres to stringent quality management systems to ensure batch-to-batch consistency and performance reliability. Each lot is characterized for key parameters including intrinsic viscosity, melt flow index, hardness (Shore D), and thermal transition properties. A comprehensive Certificate of Analysis (COA) detailing these specifications is provided with every shipment to support your quality assurance and regulatory compliance needs.

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 and excessive heat sources to maintain polymer integrity. The material is hygroscopic (moisture-sensitive); original packaging should be resealed after use to prevent moisture absorption.

Specification

Item	Specification
Appearance	Pellets or granules, clear to opaque
Identification (IR)	Conforms
Hardness (Shore D)	40D - 72D (Grade dependent)
Melting Point (DSC)	150°C - 200°C
Tensile Strength	> 20 MPa
Elongation at Break	> 300%
Moisture Content (KF)	< 0.1 %

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