Description

1,3-Benzenedicarboxylic Acid, Polymer With 2-Ethyl-2-(Hydroxymethyl)-1,3-Propanediol is a high-performance, branched polyester polyol derived from isophthalic acid and trimethylolpropane. This specialized polymer is engineered to deliver enhanced mechanical properties, chemical resistance, and formulation flexibility in demanding industrial applications. It is a critical raw material for manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries, as well as for producers of specialty polyurethanes and composite resins.

Application

• High-Performance Coatings: Serves as a key polyol component in two-component polyurethane coatings for industrial, automotive, and marine applications, providing excellent hardness, flexibility, and chemical resistance.
• Adhesives & Sealants: Used in formulating polyurethane-based adhesives and sealants that require strong bonding, durability, and resistance to environmental stressors.
• Elastomers: A vital ingredient in the production of castable and thermoplastic polyurethane elastomers (TPU) for gaskets, wheels, and industrial parts.
• Composite Resins: Acts as a reactive modifier in unsaturated polyester resins and vinyl ester resins, improving toughness and impact resistance in fiber-reinforced plastics.
• Specialty Polyurethanes: Utilized in the synthesis of rigid and semi-rigid polyurethane foams, as well as in non-foam applications like binders and encapsulants.
• Industrial Inks: Incorporated into solvent-based and radiation-curable ink formulations to enhance adhesion and film properties on various substrates.

Basic Information

Product Name	1,3-Benzenedicarboxylic Acid, Polymer With 2-Ethyl-2-(Hydroxymethyl)-1,3-Propanediol
CAS No.	36087-94-2
Molecular Formula	(C9H6O4 · C6H14O3)n
Molecular Weight	Polymer - Variable
Synonyms	Isophthalic Acid - Trimethylolpropane Copolymer; TMP-IPA Polyester Polyol; Poly(isophthalic acid-co-trimethylolpropane); Trimethylolpropane Isophthalate Polyester; IPA-TMP Polyol; Polyester polyol from isophthalic acid and TMP; 1,3-Benzenedicarboxylic acid polymer with 2-ethyl-2-(hydroxymethyl)-1,3-propanediol
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. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with each shipment to support your quality assurance and regulatory compliance needs.

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 / 59-77°F). Keep away from heat sources and incompatible materials such as strong oxidizing agents, acids, and bases. This product is hygroscopic (moisture-sensitive); ensure containers are sealed after use to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Viscous liquid to semi-solid
Color (Gardner)	≤ 3
Hydroxyl Value (mg KOH/g)	280 - 320
Acid Value (mg KOH/g)	≤ 2.0
Viscosity @ 25°C (cP)	5,000 - 25,000
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.