Description

Fatty Acids, Tall-Oil, Polymers With Phthalic Anhydride And Trimethylolpropane is a specialized alkyd resin intermediate, synthesized from renewable tall oil fatty acids, phthalic anhydride, and trimethylolpropane. This compound is valued for its ability to impart flexibility, adhesion, and chemical resistance to final polymer formulations. It is primarily sought after by manufacturers in the coatings, adhesives, and specialty chemical industries seeking to enhance product performance with bio-based components. The CAS number for this substance is 66070-86-8.

Application

This versatile polymeric intermediate serves as a key building block in numerous industrial formulations:

• Alkyd Resins for Industrial Coatings: Used to formulate air-drying and baking enamels, providing excellent gloss retention, flexibility, and durability for metal and wood substrates.
• Adhesives and Sealants: Acts as a tackifier and modifier to improve adhesion, cohesion, and environmental resistance in pressure-sensitive and structural adhesives.
• Printing Inks: Employed in resin formulations for gravure and flexographic inks, contributing to pigment wetting, gloss, and substrate adhesion.
• Plasticizers and Modifiers: Used to modify the properties of other polymers, enhancing flexibility and impact resistance in compounded materials.
• Corrosion Inhibitive Primers: A component in primer formulations where its film-forming properties help protect metal surfaces.

Basic Information

Product Name	Fatty Acids, Tall-Oil, Polymers With Phthalic Anhydride And Trimethylolpropane
CAS No.	66070-86-8
Molecular Formula	Complex Polymer Mixture
Molecular Weight	Variable (Polymer Distribution)
Synonyms	Tall oil fatty acid-phthalic anhydride-trimethylolpropane polymer; TOFA-PA-TMP polymer; Alkyd resin from tall oil fatty acids; TMP ester of tall oil fatty acid-phthalic anhydride adduct; Polyester polyol from tall oil; Fatty acids, tall-oil, polymers with phthalic anhydride and 2-ethyl-2-(hydroxymethyl)-1,3-propanediol; Tall oil alkyd resin intermediate
EINECS	266-104-5

Quality Control

Our production of this polymeric intermediate adheres to strict quality management systems to ensure batch-to-batch consistency. Key parameters such as acid value, hydroxyl value, viscosity, and color are rigorously monitored. Certificates of Analysis (COA) detailing these specifications are provided with each shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. This material is easily oxidized; for long-term storage, consider maintaining under an inert atmosphere (e.g., nitrogen blanket). Store in a cool, dry, well-ventilated area away from strong acids and organic solvents. Typical recommended storage temperature is between 15°C and 25°C (59°F and 77°F).

Specification

Item	Specification
Appearance	Viscous liquid to semi-solid
Color (Gardner)	≤ 12
Acid Value (mg KOH/g)	≤ 10
Hydroxyl Value (mg KOH/g)	Reported per grade
Viscosity (at 25°C)	Reported per grade
Solids Content	Reported per grade

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