Description

1,3-Benzenedicarboxylic Acid, Polymer With 1,4-Butanediol, Dimethyl 1,4-Benzenedicarboxylate And .Alpha.-Hydro-.Omega.-Hydroxypoly(Oxy-1,2-Ethanediyl) is a specialized copolyester resin engineered for high-performance applications. This polymer is valued for its unique balance of chemical resistance, thermal stability, and tunable mechanical properties derived from its multi-component structure. It is primarily sought after by manufacturers in the coatings, adhesives, and specialty plastics industries seeking to enhance product durability and performance.

Application

• High-Performance Coatings: Used as a resin binder in industrial and protective coatings requiring excellent chemical resistance and weatherability.
• Specialty Adhesives & Sealants: Serves as a key polymeric component in formulations demanding strong adhesion and flexibility under harsh environmental conditions.
• Engineering Thermoplastics: Incorporated as a modifier or primary polymer to improve the impact strength, thermal stability, and processing characteristics of plastic compounds.
• Textile Finishing: Applied in fiber treatments and fabric coatings to impart durable water repellency, stain resistance, or specific functional properties.
• Automotive Components: Utilized in under-the-hood parts, interior trim, or exterior coatings where resistance to fuels, oils, and temperature fluctuations is critical.
• Electrical Encapsulation: Employed in potting compounds and insulating materials for electronic components due to its potential for good dielectric properties and environmental protection.

Basic Information

Item	Details
Product Name	1,3-Benzenedicarboxylic Acid, Polymer With 1,4-Butanediol, Dimethyl 1,4-Benzenedicarboxylate And .Alpha.-Hydro-.Omega.-Hydroxypoly(Oxy-1,2-Ethanediyl)
CAS No.	85075-34-9
Molecular Formula	Polymeric substance; Contact for details
Molecular Weight	Polymeric substance; Contact for details
Synonyms	Poly(butylene terephthalate-co-isophthalate-co-ethylene glycol); PBT-PEG Copolyester; Butanediol/Isophthalic Acid/Terephthalic Acid/Polyethylene Glycol Copolymer; Polyester Resin 85075-34-9; PBIT Copolymer; Aromatic Copolyester with PEG; Thermoplastic Copolyester Elastomer (TPC-ET); Iso/Tere-Polyester Glycol
EINECS	Contact for details

Quality Control

Our production of this copolyester resin adheres to stringent quality management protocols. Each batch undergoes comprehensive analysis to ensure consistency in key parameters such as intrinsic viscosity, acid value, hydroxyl value, and thermal transition points. A Certificate of Analysis (COA) detailing these specifications is provided with every shipment to guarantee traceability and compliance with your formulation requirements.

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 acids and organic solvents. The material should be kept under dry conditions to prevent moisture absorption, which may affect its properties.

Specification

Item	Specification
Appearance	White to off-white pellets or granules
Intrinsic Viscosity (IV)	0.6 - 1.2 dL/g (Typical)
Acid Value	≤ 3.0 mg KOH/g
Hydroxyl Value	Contact for details
Melting Point (DSC)	160 - 220 °C
Glass Transition Temp (Tg)	Contact for details
Moisture Content	≤ 0.5 %
Identification (IR)	Conforms to structure

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