Description

1,4-Benzenedicarboxylic Acid, Polymer With1,3-Dihydro-1,3-Dioxo-5-Isobenzofurancarboxylic Acid, Hexanedioic Acidand 1,2-Propanediol is a high-performance, specialized copolyester resin designed for demanding industrial applications. This polymer's unique composition, derived from terephthalic acid, trimellitic anhydride, adipic acid, and propylene glycol, provides an exceptional balance of thermal stability, chemical resistance, and mechanical properties. It is primarily sought by manufacturers in the coatings, adhesives, and advanced composite materials sectors who require reliable, high-quality polymer intermediates.

Application

• High-Temperature Powder Coatings: As a key resin component for durable finishes on appliances, automotive parts, and industrial equipment.
• Specialty Adhesives and Sealants: Providing enhanced bonding strength and flexibility in construction and automotive assembly.
• Engineered Plastic Modifiers: Improving the heat distortion temperature and impact resistance of thermoplastic compounds.
• Wire and Cable Insulation: Used in formulations requiring excellent electrical properties and thermal endurance.
• Can and Coil Coatings: For metal substrates requiring superior corrosion protection and formability.
• Industrial Composite Binders: In fiber-reinforced plastics (FRP) and other composite materials.

Basic Information

Product Name	1,4-Benzenedicarboxylic Acid, Polymer With1,3-Dihydro-1,3-Dioxo-5-Isobenzofurancarboxylic Acid, Hexanedioic Acidand 1,2-Propanediol
CAS No.	70729-94-1
Molecular Formula	(C8H6O4·C9H4O5·C6H10O4·C3H8O2)x
Molecular Weight	Polymer - Variable
Synonyms	Terephthalic Acid - Trimellitic Anhydride - Adipic Acid - Propylene Glycol Copolymer; Poly(Terephthalic Acid/Trimellitic Anhydride/Adipic Acid/Propylene Glycol); Terephthalic Acid/Trimellitic Anhydride/Adipic Acid/Propylene Glycol Copolyester; PTTA-AG Copolymer; Polyester Resin from TPA, TMA, AA, and PG; Carboxyl-Functional Polyester Resin; Acid-Functional Copolyester
EINECS	Contact for details

Quality Control

Our production of this copolyester adheres to strict quality management systems to ensure batch-to-batch consistency and performance reliability. Key parameters such as acid value, hydroxyl value, viscosity, glass transition temperature (Tg), and color are rigorously monitored. Certificates of Analysis (COA) detailing these specifications are provided with every shipment. We can support compliance with relevant global regulatory frameworks, including REACH.

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 product is hygroscopic (moisture-sensitive); containers must be kept tightly sealed when not in use to prevent moisture absorption, which can affect product properties. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white flakes or powder
Acid Value	30 - 70 mg KOH/g
Hydroxyl Value	5 - 50 mg KOH/g
Glass Transition Temp (Tg)	40 - 70 °C
Softening Point	90 - 120 °C
Viscosity (at 200°C)	500 - 5000 mPa·s
Color (Gardner)	≤ 3
Moisture Content	≤ 0.5 %

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