Description

Hexanedioic Acid, Polymer With 2,2-Dimethyl-1,3-Propanediol, 1,2-Ethanediol, 2-Ethyl-2-(Hydroxymethyl)-1,3-Propanediol And 1,3-Isobenzofurandione CAS NO 129316-84-3 is a high-performance, branched polyester polyol resin designed for demanding industrial applications. This specialized polymer offers a unique balance of properties derived from its multi-component structure, including flexibility, chemical resistance, and excellent adhesion. It is a critical raw material for formulators in the coatings, adhesives, sealants, and elastomers (CASE) industries seeking to enhance product durability and performance. Its versatility makes it suitable for both solvent-based and high-solids formulations.

Application

• High-Performance Industrial Coatings: Used as a polyol component in polyurethane coatings for automotive, aerospace, and heavy-duty machinery, providing excellent weatherability, chemical resistance, and mechanical strength.
• Adhesives and Sealants: Serves as a key resin in formulating structural adhesives, laminating adhesives, and flexible sealants, offering strong substrate adhesion and enhanced elasticity.
• Elastomers and Urethane Castings: A fundamental building block for manufacturing polyurethane elastomers, gaskets, rollers, and impact-absorbing components.
• Composite Materials: Utilized in the production of fiber-reinforced plastics (FRP) and other composite structures, improving interlaminar bonding and toughness.
• Electrical Potting and Encapsulation: Employed in systems designed to protect sensitive electronic components from moisture, vibration, and environmental stress.
• Flexible Foams and Cushioning: Can be formulated into specialized flexible polyurethane foams requiring specific resilience and load-bearing properties.

Basic Information

Product Name	Hexanedioic Acid, Polymer With 2,2-Dimethyl-1,3-Propanediol, 1,2-Ethanediol, 2-Ethyl-2-(Hydroxymethyl)-1,3-Propanediol And 1,3-Isobenzofurandione
CAS No.	129316-84-3
Molecular Formula	Contact for details
Molecular Weight	Varies (Polymer)
Synonyms	Poly(neopentyl glycol-co-ethylene glycol-co-trimethylolpropane adipate-co-phthalate); Branched Aliphatic-Aromatic Copolyester Polyol; Adipic Acid/Phthalic Anhydride/Neopentyl Glycol/Ethylene Glycol/Trimethylolpropane Copolymer; Polyester Polyol Resin; CAS 129316-84-3; Urethane Grade Polyester Polyol; Hydroxyl-Terminated Polyester; Copolyester polyol based on adipic acid, phthalic anhydride, NPG, EG, and TMP.
EINECS	Contact for details

Quality Control

Our production of this polyester polyol adheres to strict quality management protocols to ensure batch-to-batch consistency and performance reliability. Key parameters such as hydroxyl value, acid value, viscosity, and color are rigorously tested against internal specifications. A comprehensive Certificate of Analysis (COA) detailing these specifications 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, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive). Keep the container tightly sealed when not in use to prevent absorption of atmospheric moisture, which can affect product performance. Keep away from heat sources and open flame.

Specification

Item	Specification
Appearance	Clear, viscous liquid to pale yellow solid
Hydroxyl Value (mg KOH/g)	As per grade
Acid Value (mg KOH/g)	≤ 2.0
Viscosity @ 25°C (mPa·s)	As per grade
Color (Gardner)	≤ 3
Water Content (%)	≤ 0.1

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