Description

1,3-Benzenedicarboxylic acid, polymer with 2,2-dimethyl-1,3-propanediol, 2-ethyl-2-(hydroxymethyl)-1,3-propanediol, hexanedioic acid and 2,2,4-trimethyl-1,3-pentanediol is a high-performance, branched polyester polyol resin. This specialized polymer is engineered to deliver a unique balance of flexibility, hardness, and chemical resistance, making it a critical raw material for demanding industrial coatings and adhesives. It is primarily sought by formulators in the paints & coatings, specialty adhesives, and advanced polymer industries seeking to enhance product durability and performance.

Application

• High-Performance Industrial Coatings: A key resin component for automotive OEM, refinish, and industrial maintenance coatings requiring excellent weatherability and chemical resistance.
• Polyurethane Adhesives & Sealants: Used as a polyol component in formulating flexible, durable adhesives for construction, automotive, and composite bonding.
• Elastomers and Castable Urethanes: Imparts toughness and resilience to polyurethane elastomers used in wheels, rollers, and industrial parts.
• Corrosion-Resistant Primers: Formulated into primers and topcoats for metal substrates in marine, infrastructure, and oil & gas applications.
• Plastic Coatings and Inks: Serves as a binder for coatings on plastics and in specialty ink formulations requiring strong adhesion.
• Fiberglass Reinforced Plastics (FRP): Used in gel coats and resin systems for composites in transportation and marine industries.

Basic Information

Product Name	1,3-Benzenedicarboxylic acid, polymer with 2,2-dimethyl-1,3-propanediol, 2-ethyl-2-(hydroxymethyl)-1,3-propanediol, hexanedioic acid and 2,2,4-trimethyl-1,3-pentanediol
CAS No.	28477-54-5
Molecular Formula	(C8H6O4 · C5H12O2 · C6H14O3 · C6H10O4 · C8H18O2)n
Molecular Weight	Polymer - Contact for details
Synonyms	Isophthalic Acid/Neopentyl Glycol/Trimethylolpropane/Adipic Acid/2,2,4-Trimethyl-1,3-Pentanediol Copolymer; Polyester Polyol Resin (Branched); IPA/NPG/TMP/AA/TMPD Copolymer; Isophthalic Acid-Based Polyester Polyol; Hydroxyl-Functional Polyester Resin; Branched Copolyester Polyol; Coating Grade Polyester Polyol; Adhesive Polyol Resin
EINECS	Contact for details

Quality Control

Our production of this polyester polyol adheres to strict quality management systems to ensure batch-to-batch consistency and performance reliability. Each lot is characterized for critical parameters including hydroxyl value, acid value, viscosity, and color to meet precise formulation requirements. Certificates of Analysis (COA) documenting full specifications are provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from heat sources and open flame. Under recommended storage conditions, the product is stable for at least 24 months from the date of manufacture.

Specification

Item	Specification
Appearance	Clear, viscous liquid
Color (Gardner)	≤ 3
Hydroxyl Value (mg KOH/g)	Contact for details
Acid Value (mg KOH/g)	≤ 5.0
Viscosity @ 25°C (cPs)	Contact for details
Solid Content (%)	Contact for details
Water Content (%)	≤ 0.1

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