Description

Tall Oil Fatty Acids Polymer With 1,3-Benzenedicarboxylic Acid, 2-Ethyl-2-(Hydroxymethyl)-1,3-Propanediol And 2,2- Bis(Hydroxymethyl)-1,3-Propanediol CAS NO 203459-97-6 is a specialized polymeric resin derived from renewable tall oil fatty acids and polyfunctional alcohols. This compound matters for its unique combination of bio-based content and the versatile performance characteristics imparted by its hyperbranched or cross-linked polyester structure. Industrial formulators and chemical manufacturers need it for creating high-performance, sustainable coatings, adhesives, and composite materials where enhanced flexibility, chemical resistance, and environmental profile are critical.

Application

• Alkyd Resin Modifier: Used to enhance the flexibility, drying time, and durability of alkyd-based surface coatings and paints.
• Polyester Resin Component: Serves as a bio-based polyol or acid component in unsaturated polyester resins (UPR) for composites and gel coats.
• Adhesive & Sealant Formulation: Imparts tack, adhesion, and water resistance in industrial adhesive and sealant systems.
• Polyurethane Crosslinker: Functions as a polyol component in polyurethane (PU) formulations for coatings, elastomers, and foams.
• Printing Ink Vehicle: Utilized in resin vehicles for specialty printing inks to improve gloss, flow, and substrate wetting.
• Industrial Lubricant Additive: Acts as a viscosity modifier or polar additive in synthetic lubricants and functional fluids.

Basic Information

Item	Detail
Product Name	Tall Oil Fatty Acids Polymer With 1,3-Benzenedicarboxylic Acid, 2-Ethyl-2-(Hydroxymethyl)-1,3-Propanediol And 2,2- Bis(Hydroxymethyl)-1,3-Propanediol
CAS No.	203459-97-6
Molecular Formula	Complex Polymer (Contact for details)
Molecular Weight	Variable (Polymer)
Synonyms	TOFA-Isophthalic Acid-TMP-PE Polymer; Tall Oil Fatty Acid Polyester Polyol; TMP/PE Polyester from TOFA and Isophthalic Acid; Hyperbranched Polyester from Tall Oil; Bio-based Polyester Polyol; TOFA Polyol Resin; Fatty Acid Modified Polyester; CAS 203459-97-6
EINECS	Contact for details

Quality Control

Our Tall Oil Fatty Acids Polymer is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure consistent performance, including measurement of acid value, hydroxyl value, viscosity, and color. Certificates of Analysis (COA) documenting these key parameters are available upon request to support your quality assurance and regulatory compliance needs.

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 strong alkalis and incompatible organic solvents. For long-term storage, consider under an inert atmosphere to prevent oxidation.

Specification

Item	Specification
Appearance	Viscous liquid to semi-solid
Color (Gardner)	≤ 12
Acid Value (mg KOH/g)	≤ 10.0
Hydroxyl Value (mg KOH/g)	Reported per COA
Viscosity @ 25°C (cPs)	Reported per COA
Solid Content (%)	≥ 99.0
Identification (IR)	Conforms to structure

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