Description

1,3-Benzenedicarboxylic Acid, Polymer With 1,4-Benzenedicarboxylic Acid, 1,4-Butanediol And (Z,Z)-9,12-Octadecadienoic Acid Dimer is a specialized copolyester resin designed for high-performance applications. This polymer offers a unique balance of properties derived from its aromatic and aliphatic components, including chemical resistance, flexibility, and durability. It is a critical material for formulators and manufacturers in the coatings, adhesives, and specialty plastics industries seeking advanced polymeric solutions.

Application

• High-Performance Industrial Coatings: Used as a resin binder in coil, can, and automotive coatings for excellent adhesion and chemical resistance.
• Adhesives and Sealants: Serves as a key polymeric component in structural and flexible adhesive formulations.
• Specialty Plastic Modifiers: Incorporated to enhance the toughness, flexibility, and weatherability of engineering plastics.
• Printing Inks: Utilized in solvent-based ink systems for improved film formation and substrate adhesion.
• Fiber Reinforced Composites: Acts as a matrix resin or compatibilizer in composite materials.
• Wire and Cable Insulation: Provides protective, flexible coatings with good electrical properties.

Basic Information

Product Name	1,3-Benzenedicarboxylic Acid, Polymer With 1,4-Benzenedicarboxylic Acid, 1,4-Butanediol And (Z,Z)-9,12-Octadecadienoic Acid Dimer
CAS No.	68123-22-8
Molecular Formula	(C8H6O4 · C8H6O4 · C4H10O2 · C36H64O4)n
Molecular Weight	Polymeric substance (variable)
Synonyms	Poly(isophthalate-co-terephthalate-co-butylene adipate); Copolyester of isophthalic acid, terephthalic acid, 1,4-butanediol, and dimer acid; Dimer acid-based copolyester; PITBA copolymer; Isophthalic-Terephthalic-Butanediol-Dimer Acid Copolymer; Aliphatic-Aromatic Copolyester Resin; Linoleic Acid Dimer 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, and glass transition temperature (Tg) are rigorously monitored. Certificates of Analysis (COA) detailing these specifications are provided with each shipment to support your quality assurance protocols.

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 product has a recommended shelf life of 24 months from the date of manufacture when stored under these conditions.

Specification

Item	Specification
Appearance	Pale yellow to amber pellets or solid
Acid Value	≤ 5.0 mg KOH/g
Hydroxyl Value	10 - 50 mg KOH/g
Viscosity (25°C, 40% in solvent)	800 - 2500 mPa·s
Glass Transition Temperature (Tg)	-20°C to 10°C
Softening Point (Ring & Ball)	80°C - 120°C
Color (Gardner)	≤ 6
Moisture Content	≤ 0.5 %

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