Description

1,4-Benzenedicarboxylic Acid, Polymer With 2,2-Dimethyl-1,3-Propanediol, 1,2-Ethanediol, 2-Ethyl-2-(Hydroxymethyl)-1,3-Propanediol And Hexanedioic Acid CAS NO 42847-45-0 is a high-performance, branched polyester polyol resin. This specialized polymer is engineered to deliver exceptional durability, flexibility, and chemical resistance in demanding industrial applications. It is a critical raw material for manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries seeking to enhance product performance.

Application

• High-Performance Polyurethane Coatings: Used as a key polyol component in two-component (2K) polyurethane systems for industrial, automotive, and protective coatings, providing excellent weatherability and mechanical properties.
• Elastomers and Sealants: Serves as a building block for flexible polyurethane elastomers, gaskets, and high-strength sealants requiring good tear strength and hydrolysis resistance.
• Adhesives and Binders: Formulated into structural and laminating adhesives where strong bonding, flexibility, and chemical resistance are paramount.
• Composite Materials: Utilized in the production of fiber-reinforced plastics and composite matrices, contributing to toughness and impact resistance.
• Specialty Resins for Casting: Employed in casting resins for electrical encapsulation, potting compounds, and industrial mold making.

Basic Information

Item	Detail
Product Name	1,4-Benzenedicarboxylic Acid, Polymer With 2,2-Dimethyl-1,3-Propanediol, 1,2-Ethanediol, 2-Ethyl-2-(Hydroxymethyl)-1,3-Propanediol And Hexanedioic Acid
CAS No.	42847-45-0
Molecular Formula	(C8H6O4 · C5H12O2 · C2H6O2 · C6H14O4 · C6H10O4)n
Molecular Weight	Polymer - Contact for details
Synonyms	Poly(neopentyl glycol-co-ethylene glycol-co-trimethylolpropane-co-adipic acid-co-terephthalic acid); Terephthalic Acid/Adipic Acid/Neopentyl Glycol/Ethylene Glycol/Trimethylolpropane Copolymer; Branched Polyester Polyol Resin; Polyester Polyol based on TPA, AA, NPG, EG, TMP; CAS 42847-45-0; Aromatic-Aliphatic Copolyester Polyol; TPA/AA/NPG/EG/TMP Copolymer
EINECS	Contact for details

Quality Control

Our production of this polyester polyol resin adheres to stringent 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. Certificates of Analysis (COA) documenting full specifications are provided with every shipment to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. This material is hygroscopic (moisture-sensitive). Store in a cool, dry, and well-ventilated area at room temperature (15-25°C/59-77°F). Keep the container tightly sealed when not in use to prevent moisture absorption, which can affect product performance.

Specification

Item	Specification
Appearance	Clear, viscous liquid to pale 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

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