Description

1,3-Benzenedicarboxylic Acid, Polymer With Dimethyl 1,4-Cyclohexanedicarboxylate, 2,2-Dimethyl-1,3-Propanediol And 2-Ethyl-2-(Hydroxymethyl)-1,3-Propanediol is a high-performance, branched polyester polyol resin designed for demanding industrial applications. This specialized polymer offers a unique combination of thermal stability, chemical resistance, and formulation flexibility, making it a critical raw material for advanced coating systems. It is primarily utilized by manufacturers in the paints & coatings, adhesives, and specialty plastics industries seeking to enhance product durability and performance.

Application

• High-Performance Industrial Coatings: As a key resin component in polyurethane coatings for automotive, aerospace, and marine applications requiring excellent weatherability and chemical resistance.
• Thermosetting Powder Coatings: Used in formulations that demand superior flow, leveling, and final film properties for appliances, architectural aluminum, and general metal finishing.
• Adhesives and Sealants: Serves as a polyol in reactive hot-melt and moisture-cure polyurethane adhesive systems, providing strong bonding and flexibility.
• Elastomers and Casting Resins: A building block for producing flexible and rigid polyurethane elastomers used in industrial parts, rollers, and encapsulation.
• UV-Curable Systems: Can be modified and incorporated into oligomers for radiation-curable coatings and inks, contributing to rapid cure and high crosslink density.
• Composite Materials: Acts as a matrix resin or modifier in fiber-reinforced plastics (FRP) for improved mechanical properties and processing.

Basic Information

Product Name	1,3-Benzenedicarboxylic Acid, Polymer With Dimethyl 1,4-Cyclohexanedicarboxylate, 2,2-Dimethyl-1,3-Propanediol And 2-Ethyl-2-(Hydroxymethyl)-1,3-Propanediol
CAS No.	69847-42-3
Molecular Formula	(C8H6O4·C10H16O4·C5H12O2·C6H14O3)n
Molecular Weight	Polymer - Variable
Synonyms	Poly(neopentyl glycol-co-isophthalic acid-co-dimethyl cyclohexanedicarboxylate-co-trimethylolpropane); Branched Polyester Polyol (Isophthalic Acid/CHDM/Neopentyl Glycol/TMP based); Isophthalic Acid-CHDM-NPG-TMP Copolyester; Polyester Polyol Resin 69847-42-3; Thermosetting Polyester Polyol; Hydroxyl-Functional Polyester Resin; Coating Grade Polyester Polyol
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. Key parameters including hydroxyl value, acid value, viscosity, and color are rigorously tested against internal specifications. A comprehensive Certificate of Analysis (COA) detailing these results is provided with every shipment to support your quality assurance and formulation processes.

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 these conditions, the product is typically stable for 24 months from the date of manufacture. Moisture-sensitive (hygroscopic) – keep container tightly sealed when not in use.

Specification

Item	Specification
Appearance	Clear, viscous liquid to pale solid
Color (Gardner)	≤ 2
Hydroxyl Value (mg KOH/g)	Contact for details
Acid Value (mg KOH/g)	≤ 2.0
Viscosity @ 25°C (cPs)	Contact for details
Glass Transition Temp (Tg)	Contact for details
Moisture Content (KF)	≤ 0.1%

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