Description

1,4-Benzenedicarboxylic Acid, Polymer With 1,4-Butanediol And .Alpha.-Hydro-.Omega.-Hydroxypoly(Oxy-1,2-Ethanediyl) is a high-performance thermoplastic polyester-polyether block copolymer, commonly known as a thermoplastic polyurethane elastomer (TPU) or a specific grade of polyether ester. This engineered polymer is valued for its exceptional balance of mechanical toughness, flexibility, and chemical resistance. It is primarily sought by manufacturers in the plastics, automotive, and specialty coatings industries for creating durable components that require both elasticity and strength under demanding conditions.

Application

• Thermoplastic Polyurethane (TPU) Production: A key raw material for manufacturing high-grade TPU granules used in injection molding and extrusion.
• Automotive Components: Used in the production of durable seals, gaskets, cable sheathing, and interior trim parts that require oil and abrasion resistance.
• Industrial and Consumer Goods: Formulation of high-performance hoses, belts, wheels, and sporting goods that benefit from its elastomeric properties.
• Specialty Adhesives and Sealants: Serves as a base polymer for formulating flexible, strong, and weather-resistant adhesives and coatings.
• Wire and Cable Insulation: Provides excellent insulation properties, flexibility, and resistance to environmental stress cracking.
• Medical Device Components: Suitable for certain medical tubing and device parts where biocompatibility and flexibility are required (subject to specific grade compliance).

Basic Information

Product Name	1,4-Benzenedicarboxylic Acid, Polymer With 1,4-Butanediol And .Alpha.-Hydro-.Omega.-Hydroxypoly(Oxy-1,2-Ethanediyl)
CAS No.	39409-99-9
Molecular Formula	(C12H8O4·C4H10O2·C2nH4n+2On+1)x
Molecular Weight	Varies (Polymer)
Synonyms	Poly(butylene terephthalate)-block-poly(ethylene glycol); PBT-PEG Block Copolymer; Polyether-ester Block Copolymer; Thermoplastic Polyurethane Elastomer (TPU) precursor; Poly(oxy-1,2-ethanediyl), .alpha.-hydro-.omega.-hydroxy-, polymer with 1,4-benzenedicarboxylic acid and 1,4-butanediol; PEG-PBT Copolymer; 4,4'-(1,4-Phenylenedicarbonyl)bis(oxy)bis(butanol) polymer with .alpha.-hydro-.omega.-hydroxypoly(oxyethylene)
EINECS	Contact for details

Quality Control

Our production of this polymer adheres to strict quality management systems. Each batch is characterized for critical parameters including intrinsic viscosity, melting point, block composition, and residual monomer content to ensure batch-to-batch consistency for downstream processing. Certificates of Analysis (COA) detailing these specifications are provided with every shipment. We can support compliance requirements for ISO, REACH, and FDA regulations for applicable grades.

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). This material is hygroscopic (moisture-sensitive). Keep away from strong heat, open flames, and incompatible materials such as strong acids, strong bases, and oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white pellets or granules
Identification (IR)	Conforms to structure
Inherent Viscosity	0.8 - 1.2 dL/g (Typical)
Melting Point (DSC)	180 - 220 °C
Polyether Content	20 - 60% (Grade dependent)
Moisture Content (KF)	< 0.1 %
Residual Terephthalic Acid	< 0.5 %
Ash Content	< 0.1 %

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