Description

1,4-Benzenedicarboxylic Acid Polymer With 1,4-Butanediol, 1,2-Ethanediol, Hexanedioic Acid And α-Hydro-ω-Hydroxypoly(Oxy-1,4-Butanediyl) CAS NO 61736-17-2 is a high-performance, multi-component copolyester designed for advanced material applications. This engineered polymer offers a unique balance of properties derived from its aromatic and aliphatic constituents, making it a versatile material for demanding industrial uses. It is primarily sought by manufacturers in the plastics, coatings, and specialty adhesives sectors who require materials with enhanced durability, chemical resistance, and tailored thermal performance.

Application

• High-Performance Thermoplastic Elastomers (TPEs): Used as a key component in TPEs for automotive parts, industrial hoses, and consumer goods requiring flexibility and strength.
• Specialty Adhesives and Sealants: Serves as a base resin for formulating high-bond-strength, chemically resistant adhesives and sealants in construction and assembly.
• Polymer Modification and Blending: Acts as a compatibilizer or property enhancer when blended with other polymers like polyesters or polycarbonates to improve impact strength and processability.
• Industrial and Protective Coatings: Utilized in solvent-borne or powder coatings to provide excellent adhesion, corrosion resistance, and weatherability for metal and plastic substrates.
• Molding Compounds: Formulated into engineering plastics for injection molding or extrusion to produce components with good dimensional stability and mechanical properties.
• Filaments for 3D Printing: Potential use in developing specialty filaments for fused deposition modeling (FDM) that require specific thermal and mechanical characteristics.

Basic Information

Product Name	1,4-Benzenedicarboxylic Acid Polymer With 1,4-Butanediol, 1,2-Ethanediol, Hexanedioic Acid And α-Hydro-ω-Hydroxypoly(Oxy-1,4-Butanediyl)
CAS No.	61736-17-2
Molecular Formula	Contact for details
Molecular Weight	Varies by grade and polymerization degree
Synonyms	Poly(butylene terephthalate)-co-poly(tetramethylene ether) glycol terephthalate; PBT-PTMEG Copolymer; Poly(tetramethylene ether glycol)-co-poly(butylene terephthalate); Copolyester thermoplastic elastomer based on PBT and PTMG; Poly(oxy-1,4-butanediyl), α-hydro-ω-hydroxy-, polymer with 1,4-benzenedicarboxylic acid, 1,4-butanediol, 1,2-ethanediol and hexanedioic acid; Terephthalic acid copolymer with butanediol, ethylene glycol, adipic acid, and PTMG; PTMG-modified PBT copolymer
EINECS	Contact for details

Quality Control

Our production of this specialty copolymer adheres to strict quality management systems to ensure batch-to-batch consistency and performance reliability. Key parameters such as intrinsic viscosity, melting point, acid value, and monomer content are rigorously monitored. Certificates of Analysis (COA) detailing these specifications are provided with each shipment. We can support compliance with relevant regulatory frameworks, including REACH, upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). This material is hygroscopic (moisture-sensitive). Original containers must be kept tightly sealed after opening to prevent moisture absorption, which can affect processing and final product properties. Keep away from strong oxidizing agents and heat sources.

Specification

Item	Specification
Appearance	White to off-white pellets or granules
Identification (IR)	Conforms to structure
Intrinsic Viscosity (dl/g)	1.0 - 2.0 (Grade dependent)
Melting Point (°C)	160 - 210
Acid Value (mg KOH/g)	≤ 2.0
Moisture Content (%)	≤ 0.5
Ash Content (%)	≤ 0.1

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