Description

1,3-Benzenedicarboxylic Acid, Polymer With 2,2-Dimethyl-1,3-Propanediol, 1,2-Ethanediol, Hexanedioic Acid And 1,3-Propanediol is a high-performance, branched polyester polyol designed for demanding industrial applications. This specialized copolymer offers a unique balance of properties derived from its multi-component structure, including isophthalic acid, neopentyl glycol, ethylene glycol, adipic acid, and trimethylene glycol. It is primarily sought after by manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries who require materials with excellent durability, chemical resistance, and formulation flexibility. Its tailored composition makes it a critical intermediate for producing advanced polyurethane systems and high-solid or solvent-borne coatings.

Application

• Polyurethane Resins & Elastomers: Serves as a key polyol component for synthesizing high-performance PU resins, offering enhanced mechanical strength and weatherability.
• Protective & Industrial Coatings: Used in formulating high-solid, solvent-borne, and two-component polyurethane coatings for automotive, marine, and industrial maintenance applications, providing excellent gloss retention and chemical resistance.
• Adhesives & Sealants: Imparts flexibility, adhesion, and durability to polyurethane-based adhesives and sealants used in construction and automotive assembly.
• Synthetic Leather & Textile Coatings: A vital raw material for producing PU coatings applied to fabrics and synthetic leather, improving abrasion resistance and feel.
• Fiber-Reinforced Plastics (FRP): Can be utilized in the production of unsaturated polyester resins or as a modifier for composite materials.
• Flexible Foams & Casting Compounds: Employed in specialized flexible foam formulations and casting compounds where specific hardness and resilience profiles are required.

Basic Information

Product Name	1,3-Benzenedicarboxylic Acid, Polymer With 2,2-Dimethyl-1,3-Propanediol, 1,2-Ethanediol, Hexanedioic Acid And 1,3-Propanediol
CAS No.	129984-34-5
Molecular Formula	(C8H6O4 · C5H12O2 · C2H6O2 · C6H10O4 · C3H8O2)n
Molecular Weight	Polymer - Contact for details
Synonyms	Poly(isophthalate-co-adipate) polyol; Polyester polyol from isophthalic acid, neopentyl glycol, ethylene glycol, adipic acid, and 1,3-propanediol; Branched polyester polyol; IPA/NPG/EG/AA/PDO copolymer; Isophthalic-Adipic Copolyester Polyol; Neopentyl Glycol-Ethylene Glycol-Adipate-Isophthalate Polyol; CAS 129984-34-5
EINECS	Contact for details

Quality Control

Our production of this specialty polyester polyol adheres to stringent quality management protocols to ensure batch-to-batch consistency and performance reliability. Key parameters such as hydroxyl value, acid value, viscosity, and color index are rigorously tested against internal specifications. A comprehensive Certificate of Analysis (COA) detailing these results is provided with each shipment. Our quality system is designed to support formulations requiring compliance with various industry standards, and we can provide technical data to assist with REACH and other regulatory documentation.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (typically 15-25°C). This product is hygroscopic (moisture-sensitive); containers must be kept tightly sealed when not in use to prevent absorption of atmospheric moisture, which can affect product performance. Keep away from strong heat sources and open flames.

Specification

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

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