Description

Fatty acids, tall-oil, polymers with castor oil, pentaerythritol and phthalic anhydride is a specialized alkyd resin intermediate, synthesized from renewable tall oil fatty acids, castor oil, pentaerythritol, and phthalic anhydride. This polymer is engineered to provide enhanced flexibility, adhesion, and oxidative drying properties critical for high-performance coatings. It is primarily required by formulators in the paints, coatings, inks, and adhesive industries seeking to develop products with superior durability and environmental resistance.

Application

• Primary component in air-drying and baking alkyd resins for industrial and decorative paints.
• Modifying resin for printing inks to improve gloss, flow, and adhesion on various substrates.
• Flexibilizer and adhesion promoter in specialty coatings for metal, wood, and plastic.
• Binder in corrosion-resistant primers and maintenance coatings.
• Intermediate for high-solids and solvent-borne coating systems aiming for VOC compliance.
• Raw material for synthetic lubricant additives and plasticizers.

Basic Information

Product Name	Fatty acids, tall-oil, polymers with castor oil, pentaerythritol and phthalic anhydride
CAS No.	67700-91-8
Molecular Formula	Polymeric substance; Contact for details
Molecular Weight	Polymeric substance; Contact for details
Synonyms	Tall oil fatty acid alkyd resin; TOFA-Phthalic Anhydride-Pentaerythritol-Castor Oil Polymer; Alkyd resin from tall oil fatty acids and castor oil; Tall oil alkyd; Fatty acids, tall-oil, polymers with castor oil, pentaerythritol and phthalic anhydride; Poly(tall oil fatty acids-co-castor oil-co-phthalic anhydride-co-pentaerythritol); Pentaerythritol phthalic alkyd resin modified with tall oil and castor oil fatty acids
EINECS	Contact for details

Quality Control

Our production of this alkyd resin intermediate adheres to strict batch-to-batch consistency protocols. Quality is monitored through key parameters including acid value, viscosity, color, and solids content. Certificates of Analysis (COA) detailing these specifications are provided with each shipment to ensure the material meets your formulation requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is easily oxidized (store under inert atmosphere) and is light-sensitive. Isolate from strong oxidizing agents and heat sources.

Specification

Item	Specification
Appearance	Viscous liquid to solid resin
Color (Gardner)	≤ 12
Acid Value (mg KOH/g)	5 - 15
Viscosity (Gardner-Holdt)	Z2 - Z6
Solids Content (%)	70 ± 2
Identification (IR)	Conforms to structure

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