Description

1,3-Benzenedicarboxylic Acid, Polymer With 1,4-Benzenedicarboxylic Acid, 1,4-Butanediol And .Alpha.-Hydro-.Omega.-Hydroxypoly(Oxy-1,4-Butanediyl) is a high-performance thermoplastic polyester elastomer (TPEE) copolymer, commonly known as a polyether-ester block copolymer. This engineered polymer is valued for its exceptional balance of mechanical resilience, chemical resistance, and processing flexibility. It is a critical material for manufacturers in demanding sectors such as automotive, industrial components, and specialty consumer goods, where durability under stress and exposure to harsh environments is paramount.

Application

• Automotive Components: Used in CVJ boots, airbag covers, and vibration-damping mounts due to its excellent fatigue resistance and wide service temperature range.
• Industrial Hose & Tubing: Ideal for hydraulic hoses, pneumatic tubing, and fuel lines where resistance to oils, greases, and hydraulic fluids is required.
• Consumer Electronics: Employed in protective cases, cable sheathing, and connectors for its good electrical insulation properties and durability.
• Sporting Goods: Utilized in high-performance applications like ski boots, bicycle grips, and athletic shoe components for its flexibility and impact resistance.
• Medical Device Components: Suitable for non-implantable parts requiring sterilization compatibility and resilience, such as tubing and housing.
• Industrial Belts & Seals: Used in timing belts, conveyor belts, and seals where high tensile strength and resistance to wear and abrasion are critical.
• Wire & Cable Jacketing: Provides a protective, flexible, and flame-retardant (in compounded grades) outer layer for various cables.
• Polymer Modification: Acts as a compatibilizer or toughening agent in blends with other polymers like polycarbonate or ABS to enhance impact strength and flexibility.

Basic Information

Product Name	1,3-Benzenedicarboxylic Acid, Polymer With 1,4-Benzenedicarboxylic Acid, 1,4-Butanediol And .Alpha.-Hydro-.Omega.-Hydroxypoly(Oxy-1,4-Butanediyl)
CAS No.	37282-15-8
Molecular Formula	(C8H6O4 · C8H6O4 · C4H10O2 · (C4H8O)nH2O)x
Molecular Weight	Polymer - Not Applicable
Synonyms	Poly(ether-ester) elastomer; Thermoplastic Polyester Elastomer (TPEE); Poly(tetramethylene ether glycol)-b-poly(butylene terephthalate/isophthalate); PTMG-b-PBTI; Copolyether-ester block copolymer; Poly(butylene terephthalate/isophthalate)-block-poly(tetramethylene oxide); TPEE based on PBT/PIT and PTMG; Hytrel®-type polymer (generic)
EINECS	Contact for details

Quality Control

Our thermoplastic polyester elastomer is manufactured under a stringent quality management system. Each batch undergoes comprehensive testing for key parameters including intrinsic viscosity, melt flow index, thermal properties (DSC), and mechanical performance to ensure consistency and compliance with industry specifications. Certificates of Analysis (COA) detailing lot-specific results are provided with every shipment. Our production adheres to relevant ISO standards, and we support our global clients with documentation for REACH, FDA (for applicable grades), and other regulatory frameworks as required.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a temperature of 15-25°C (59-77°F). Keep away from strong acids, organic solvents, and sources of heat or ignition to maintain polymer integrity. For long-term storage (exceeding 12 months), storing under an inert atmosphere such as nitrogen is recommended to prevent oxidative degradation.

Specification

Item	Specification
Appearance	White to off-white pellets or granules
Identification (IR)	Conforms to structure
Intrinsic Viscosity (dl/g)	1.2 - 2.5 (Grade dependent)
Melting Point (DSC)	150 - 210 °C
Hardness (Shore D)	30D - 80D
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.