Description

1,3-Benzenedicarboxylic acid, polymer with 1,4-benzenedicarboxylic acid, 2,2-dimethyl-1,3-propanediol, 1,6-hexanediol and 3-hydroxy-2,2-dimethylpropyl 3-hydroxy-2,2-dimethylpropanoate is a high-performance, branched co-polyester resin engineered for demanding industrial applications. This polymer is valued for its excellent balance of durability, chemical resistance, and processing versatility, making it a critical raw material for advanced material formulations. It is primarily sought by manufacturers in the coatings, adhesives, and specialty plastics industries seeking to enhance product performance.

Application

• High-Performance Industrial Coatings: Used as a key resin in powder coatings, coil coatings, and can coatings, providing excellent flow, leveling, and weatherability.
• Thermosetting Adhesives and Sealants: Serves as a base polymer for structural adhesives requiring strong bonding, flexibility, and resistance to environmental stress.
• Specialty Plastic Modifiers: Incorporated as an additive or primary component to improve the impact strength, gloss, and chemical resistance of engineering plastics.
• Automotive and Appliance Finishes: A critical component in formulations for durable, scratch-resistant, and aesthetically pleasing finishes on metal substrates.
• Electrical Insulating Varnishes: Utilized in wire enamels and insulating coatings due to its good dielectric properties and thermal stability.
• Ink Resins for Packaging: Employed in the formulation of high-adhesion, flexible inks for metal and plastic packaging.

Basic Information

Item	Detail
Product Name	1,3-Benzenedicarboxylic acid, polymer with 1,4-benzenedicarboxylic acid, 2,2-dimethyl-1,3-propanediol, 1,6-hexanediol and 3-hydroxy-2,2-dimethylpropyl 3-hydroxy-2,2-dimethylpropanoate
CAS No.	126191-60-4
Molecular Formula	(C8H6O4 · C8H6O4 · C5H12O2 · C6H14O2 · C10H20O4)n
Molecular Weight	Polymer - Contact for details
Synonyms	Poly(neopentyl glycol-co-1,6-hexanediol-co-trimethylolpropane, isophthalate-terephthalate); Isophthalic Acid-Terephthalic Acid-Neopentyl Glycol-1,6-Hexanediol-Trimethylolpropane Copolymer; IPA/TPA/NPG/HD/TMP Copolyester; Branched Copolyester Resin; Polyester Polyol Resin (hydroxyl-functional); Coating Polyester Resin; TPA-IPA-NPG-HD-TMP Polymer
EINECS	Contact for details

Quality Control

Our production of this co-polyester resin 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. A comprehensive Certificate of Analysis (COA) detailing all specification results is 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 heat sources and open flame. Under these conditions, the product is stable for extended periods. Ensure containers are kept sealed when not in use to prevent moisture absorption and contamination.

Specification

Item	Specification
Appearance	Colorless to pale yellow pellets or solid
Acid Value (mg KOH/g)	≤ 5.0
Hydroxyl Value (mg KOH/g)	30 - 80 (Grade dependent)
Viscosity (mPa·s @ specified temp & conc.)	Grade dependent
Glass Transition Temperature (Tg)	40 - 70 °C
Color (Gardner)	≤ 2
Moisture Content	≤ 0.5 %

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